Questions? Call Spectrum Supply at or WORKHOLDING CATALOG. A global resource of workholding solutions

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1 WORKHOLING TLOG global resource of workholding solutions

2 Model number index series page series page series page series page H Q V S L M */ H H M R S T W H HS H HLS H HV I I L LL LS LU/LUS QH R R *R/R RE RE RL *RW/RW RWH V V V V VE V , 128 VM VMM VMT V VR VSS VST */ Z K *R/R *RW/RW S , L T S U T R RV S SM ST Y Y GR E EH EM L M N Z G G G GS * These models are only shown in imperial versions in this catalog. ontact Enerpac to order metric models. M M *M/W M MHV *M/W *M/W *ML/WL *MR/WR *MS/WS *MT/WT *MTL/WTL *MTR/WTR *MTS/WTS MRS MV MVM MVM N NV G MG RG SG TG I LS LSS LV RV ,139 SK ,152 TS TSS US USS S S SL SLS SR SRS SS SSS SLL SLLS SLR SLRS SLS SLSS S STL STLS STR STRS STS STSS SUL SULL SULS SUR SURL SURS SUS SUSL SUSS T T TRM TRM , 83 TRL , 84 TRR TRRE TR TRK Yellow ages W W WT *W/M WE WEJ WEM WER WES W WL WM WT WM WMT *W/M *W/M *WL/ML *WR/MR *WS/MS *WT/MT *WTL/MTL *WTR/MTR *WTS/MTS WRT WTR WS... 33, WSL... 33, WSM... 33, WST... 33, WU WV Y Y Z Z ZW , Refer to the Yellow ages of this catalog for: Safety instructions asic hydraulic information dvanced hydraulic technology MS (lexible Machining Systems) technology onversion charts and hydraulic symbols

3 roduct index Section index product description series page product description series page & 8-41 lamp rms , 26 ivoting T-rms..., T...28 Swing ylinders...s...20 Swing ylinders...s...21 Swing ylinders, artridge ody...s...18 Swing ylinders, ollet Lok...W...24 Swing ylinders, Lower lange... SL...14 Swing ylinders, Threaded ody... ST...16 Swing ylinders, Upper lange...su...12 Three osition Swing ylinder...wtr/...22 Upreach lamp rms...u...30 Work Supports, ollet Lok...W...38 Work Supports, luid dvance...w...34 Work Supports, Spring dvance...ws...36 Linear cylinders ylinder ccessories...w//s/n/jn/y...78 ylinders, lock.../s...62 ylinders, Hollow lunger... Y/QH/RWH/HS...68 ylinders, Manifold Mount... SM...60 ylinders, ositive Locking... MRS...70 ylinders, ull own... EH/EM...66 ylinders, Tie Rod...TR...80 ylinders, Threaded ody...st/t...56 ylinders, Threaded ody...y/wmt/wrt...58 ylinders, Universal ouble-acting... R/...76 ylinders, Universal Single-acting...RW...74 Linear ylinders, ollet Lok...W...72 Link lamp...lu...44 Link lamp rms... LS/LL...46 ull ylinders, Lower lange... L...52 ull ylinders, Threaded ody... T...54 ull ylinders, Upper lange...u...50 ower sources ctivator Wand and ooster.../r ir Hydraulic oosters... H/ ir Hydraulic umps ontinuous onnection umps...zw Electric umps, Economy... WU Electric Submerged umps...we Electric riven umps...zw...94 Hand ump... /S Heat Exchangers... ZHE...97 Hydraulic Intensifiers...I Level/Temperature Switch...ZLS...98 Manual owered umps... /S ressure Switch Kits... ZT/ZS...98 allet e-oupling umps...zw ump ilter Kit...Z...97 Single Station O3 umps...zw Turbo ir umps.../t/m/s/r...88 Valve Manifold...ZW...99 Valves Way Manual Valves...VM/V Way Manual Valves...VM/V ccessory Valves...V/MHV/HV/LV ir Valves and ccessories...v/vr/rl Valves, irectional and ccessories...ve,v,rv Electric and ir oppet Valves...V/VS/V Electric Shear Seal Valves...VE/K/VS low ontrol Valve ressure Switches...SK/V..123, 152 Inline low ontrol Valves...V...123,128 Manual irectional Valves... VMM/VMT Modular irectional Valves...V/SK/V ressure Reducing Valves... RV.. 124/139 Sequence and ilot Operated...WV/MVM heck Valves... V/MVM Valve Manifolds and Mounting.../WM/TRK/M System ccumulators and ontrol Units L/S/M/W uto oupler System... W/W//T igital Gauges...GR ittings...z/z Gauges and ccessories... G/G/GS/NV/V/M Manifolds, ouplers, Hoses,.../H/L/H/ Oil, ilters and Tubing...HLS/T ressure Switches...I/SK Rotary ouplers...r/rv Safety Instructions asic Hydraulics asic System Setup lamping Technology utting orce Technology onversion actors est ractices Hydraulic Symbols Valving Technology MS Mechanical lamping Global Warranty and isclaimer & 8-41 Linear cylinders ower sources Valves System omponents Yellow ages Linear cylinders ower sources Valves System

4 The world Whether your workpiece needs to be clamped, punched, pressed, positioned or pulled, Enerpac Workholding is there to provide innovative solutions to increase your product quality and production output. ll over the world, Enerpac Workholding products are used to provide powerful clamping and positioning force to every type of manufacturing process. Enerpac cylinders are used for punching and clamping in automotive manufacturing. prevent deflection in aerospace production machining. rom the simplest fixture to robotic assisted machining centers, Enerpac cylinders provide the holding and support force to keep the world moving. Enerpac power units provide the power needed to clamp parts consistently again and again. Incorporating the latest technology and highest quality, along with the widest variety of accessories, Enerpac power units are designed for every application

5 of Enerpac Working with us couldn t be easier! 2 and 3 files of Enerpac Workholding products are available on-line (). This service includes swing cylinders, work supports, and other clamping cylinders, along with all accessories. atalogs in other languages and service information, including spare parts lists, are also available upon request through the Enerpac website. Total Quality Every product we produce is individually tested to the most exacting standards. Only in this way, can we guarantee that we will meet the quality, price, and performance requirements of the markets we serve around the globe. n ISO 9001 certifi cate confi rms that Enerpac s manufacturing and quality control procedures are precisely adhered to. ISO 9001 Quality System ertified ENER, olumbus WI US ISO 9001 REGISTERE Logistics Excellence Enerpac is a truly global partner, meeting the needs of local and multi-national customers. Maintaining service excellence in the changing world of modern distribution is one of Enerpac s missions. This demands the highest expertise in logistics around the world. 10 Good Reasons to Work with Enerpac 1. Expert esign 2. Quality 3. Innovative roducts 4. Reliability 5. Service Excellence 6. vailability 7. Value 8. pplication Support 9. Global Vision 10. Worldwide Experience The Right roducts for the Job The key to optimizing productivity is fi nding the right clamping products for the job. Take the time to page through the new Enerpac Workholding catalog, and discover how easy it is to arrive at the right selection of products for your job. Our Yellow ages Section provides helpful applications and design information

6 Guide to Your New Enerpac Workholding atalog The New Enerpac Workholding catalog;... helps you design more efficient workholding fixtures,... is a global resource of workholding solutions. This catalog is set-up in two main sections: 1 Imperial hydraulic product data section ll Enerpac hydraulic workholding products shown with imperial based specifications and dimensions. 2 Yellow ages section Your guide to safety, basic hydraulics and application suggestions. Selecting the right product for your application: 1. Select your main product category from the main index on page 3. This index shows page numbers of product offerings in the catalog. 2. rom here you go to the selected product range overview. or an example see pages 8 and 9 for the swing cylinders and work supports overview. On this page you will find the main groups with regard to functional and mounting style options. 3. roceed to pages 10 and 11 to narrow down your selection with regard to function, mounting style and clamping capacity. These application & selection pages offer a brief overview of an entire range of products within one group. Note that these pages have yellow columns on both sides of the spread. 4. Once you have made your product selection you can proceed to the product data pages, 12 and onwards, of the specific product series of your choice. These pages have gray columns on both sides of the spread

7 Range overview pplication & selection pages 1 roduct or range photo including basic description of the products function. 2 Listing of main product features and benefits. 3 Selection criteria from a functional standpoint. 4 Selection criteria from a mounting standpoint. 5 Main selection chart, showing product function, mounting option and capacity. 6 roduct related options and accessories. roduct data pages 1 pplication schematic including real life application example. 2 roduct selection. 3 etailed dimensional data. 4 roduct dimensional drawings. 5 Installation specifications

8 Swing ylinders Enerpac s complete line of swing cylinders provide maximum clamping force in the smallest possible package. With several mounting and operation styles available, Enerpac can fit any clamping need you can think of. Our unique patented clamp arm design is an industry exclusive, and makes Enerpac s swing cylinder line more versatile than ever before. Made to the highest quality standards, Enerpac swing cylinders will provide maximum performance and trouble free operation. Work Supports Enerpac s line of work support cylinders gives you maximum holding force in a compact package. Incorporating innovative material combinations, our work supports feature the lowest lock-up pressures in the industry. lso, the use of corrosion resistant materials enables Enerpac work supports to stand up time and time again to even the most abrasive applications. Technical support Refer to the Yellow ages of this catalog for: Safety instructions asic hydraulic information dvanced hydraulic technology MS (lexible Machining Systems) technology onversion charts and hydraulic symbols

9 & series page Swing cylinder range overview Upper flange swing cylinders SU Lower flange swing cylinders Threaded body swing cylinders artridge model swing cylinders dditional swing cylinders ositive locking swing cylinders [ollet-lok ] lamp arms ivoting T-arms Upreach clamp arms Work support range overview Hydraulic advance work supports Spring advance work supports ositive locking work supports [ollet-lok ] Work support mounting dimensions SL ST S S, S WTR W T U W WS W W, WS

10 pplication & selection Shown: SR-122, STL-21, WL-50 Enerpac swing cylinders allow unobstructed part fixturing and placement. The plunger rod and the attached clamp arm rotate 90 degrees in either a clockwise or counter-clockwise direction, then travel down an additional distance to clamp against the fixtured part. Upon release of clamping pressure, the clamp arm rotates back 90 degrees in the opposite direction to allow for part removal and new part placement. Roller in groove ouble index provides low height design to minimize fixture height Overload clutch allows clamp to disengage if needed to prevent damage due to improper part loading all in groove Rotation direction can be changed on-site to reduce spare inventory by 2/3 (67%) all and cam rotation ensures smooth accurate operation used in conjunction with work supports and other Enerpac to positively hold the workpieces during machining operations ompact and full featured design ompact design allows for efficient fixture layout Variety of mounting styles to meet design needs ouble and single-acting cylinders to suit a variety of hydraulic requirements hoice of porting styles to meet system and design requirements ll cylinders are available as left and right turning models Large ball and cam design on 21, 51 and 121 models allows swing rotation to be changed easily Kick-out mechanism on 92, 201, and 351 models prevents damage to cylinder from high flow rates or misapplication Select your swing cylinder type: Single acting The obvious choice when there are few system restrictions, and there are not many units retracting simultaneously ewer valving requirements which results in a less complex circuit Innovative clamp arm design allows quick and secure arm positioning ouble acting Used when greater control is required during the unclamp cycle When timing sequences are critical: less sensitive to system back pressures, resulting from long tube lengths or numerous being retracted at the same time Innovative clamp arm design allows quick and secure arm positioning ollet-lok positive locking Enerpac ollet-lok positive locking cylinders are designed to mechanically hold the workpiece while hydraulic pressure is removed. fter machining, hydraulic pressure is applied to unclamp the workpiece Used when live hydraulics are not available during the clamp cycle or when parts must be held for long periods of time This design is an industry exclusive or ollet-lok positive locking swing cylinders, see

11 Select your mounting method: SU series, Upper flange mounting lexible design allows for manifold or threaded oil port connection ixture hole does not require tight tolerances Easy installation with only 3 or 4 mounting bolts SL series, Lower flange mounting lexible design allows for manifold or threaded port connection No fixture hole required Easy installation with only 3 or 4 mounting bolts ST series, Threaded body mounting ody thread for precise cylinder height positioning Threaded oil port connection an be threaded directly into the fixture and secured in position by means of standard flange nuts S series, artridge mounting Minimal space required on fixture External plumbing not required llows close positioning of adjoining units ylinder can be completely recessed in fixture roduct selection lamping Stroke Upper flange Lower flange Threaded body artridge force 1) in lbs clamping total Single acting Model number 2) SURS-21 SLRS-21 STRS-21 SRS SURS-51 SLRS-51 STRS-51 SRS SURS-92 SLRS-92 STRS SURS-121 SLRS-121 STRS-121 SRS SURS-201 SLRS-201 STRS SURS-351 SLRS-351 STRS-351 ouble acting Model number 2) SUR-21 SLR-21 STR-21 SR SUR-51 SLR-51 STR-51 SR SUR-92 SLR-92 STR SURL-92* SUR-121 SLR-121 STR-121 SR SURL SUR-201 SLR-201 STR SUR-351 SLR-351 STR SURL-351* ollet Lok positive locking Model number 2) WR WR-100 WTR WR-300* WTR-300* orce: lbs Stroke: inch ressure: psi E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder Options vailable as both left and right turning lamp arms 26 ccessories Important Left Right 90 ctual clamping may only take place when the cylinder has completed its 90 swing. lamping Total stroke ll swing cylinders have swing angle repeatability of ± 1. Other swing angles available upon request. ontact Enerpac for info. Linear cylinders ower sources Valves System 1) With standard clamp arm. lamp arms are sold separately ( 26). lamping forces for single-acting models are reduced in order to overcome return spring force. 2) or left turning swing cylinders replace the R in the model number for an L. Note: all Enerpac to order models with metric thread and S port connections. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. 11

12 - Upper flange model Shown: SURS-201, SURS SU series The Enerpac upper flange swing cylinders are designed for integrated manifold mounting solutions. Hydraulic connections are made through SE or S oil connection or the standard integrated O-ring ports. SE oil connection Integrated O-ring port Enerpac upper flange swing clamps integrated into a fully automated machining system. Minimal mounting height when space is at a premium lexible design allows for manifold or threaded port connection Low profile mounting style allows body to be below mounting surface Simple mounting preparation and easy installation 3 or 4 mounting bolts ouble oil connection threaded port or manifold mount Symmetrical rectangular flange design enables clamping at three sides of the cylinder 30, 45, and 60 degree swing angles available on request roduct selection lamping Stroke Left Right ylinder Oil Max. Standard force 1) turning turning effective area capacity oil clamp arm flow 1) in in 2 in 3 Sold Un- Un- separately lbs lamp Total lamp clamp lamp clamp in 3 /min 22 Single acting Model number 2) SULS-21 SURS S SULS-51 SURS S SULS-92 SURS S SULS-121 SURS S SULS-201 SURS S SULS-351 SURS S-351 ouble acting Model number 2) SUL-21 SUR S SUL-51 SUR S SUL-92 SUR S SULL-92* SURL-92* S SUL-121 SUR S SULL-121 SURL S SUL-201 SUR S SUL-351 SUR S SULL-351* SURL-351* S-351 1) With standard clamp arm. lamp arms are sold separately ( 26). lamping forces for single-acting models are reduced in order to overcome return spring force. 2) or models with straight plunger movement, replace L or R with S. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. imensions in inches [ ] Note: all Enerpac to order models with S port connections. Left turning models Single acting 1 Ø 1 2 Ø H K M SULS SULS SULS SULS SULS SULS ouble acting SUL SUL SUL SULL-92* SUL SULL SUL SUL SULL-351* NOTE: dimensions shown with standard clamp arm. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design.

13 imensions & options SU series Installation dimensions in inches lamping ixture Mounting Min. Manifold O-ring 2) force 1) hole thread depth R number or lbs Ø 3 J UN J2 inside Ø x thickness # M x x x.139 1) With standard clamp arm. 2) olyurethane, 92 urometer -21, 51, , , 351 (3x) 1 N V 2 U = lamping = Unclamping (venting) S W H type 21 SE #2 51, 121 SE # Q X Note: Mounting bolts and O-rings included. K 1 T 2 M R type 92 G1/4" 201, 351 SE #4 S W Manifold O-ring N Q R S T U V W X UN ø lbs H V Q X 1 U 3 N J J2 T K 1 U Right turning models Single acting SURS SURS M10x1, SURS SURS SURS SURS-351 ouble acting SUR SUR M10x1, SUR M10x1, SURL-92* SUR SURL SUR SUR SURL-351* NOTE: U = bolt circle ø orce: lbs Stroke: inch ressure: psi E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder Options lamp arms ollet-lok swing cylinders ccessories Important 30, 45, and 60 degree rotations are available upon request. dd -30, -45 or -60 to end of standard model number to order directly from Enerpac. To order rotation limiter separately, see page 26. ustom cylinders including longer stroke lengths are available on request. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. o not exceed maximum flow rates Linear cylinders ower sources Valves System

14 - Lower flange models Shown: SLR-51, SLRS-201 No fixture hole required cylinder can be bolted directly to fixture lexible design allows for manifold or threaded port connection No fixture hole preparation required Easiest mounting preparation in the swing cylinder line Symmetrical rectangular flange design enables clamping at three sides of the cylinder llows extra large parts to be clamped 30, 45 and 60 degree swing angles available on request SL series Enerpac lower flange series swing cylinders can be bolted to the fixture, allowing easy installation of the unit and does not require machined fixture holes. Hydraulic connections are made through SE or S oil connection or the standard integrated O-ring ports. 14 SE oil connection Integrated O-ring port Lower flange swing cylinders mounted to the face of the fixture. roduct selection lamping Stroke Left Right ylinder Oil Max. Standard force 1) turning turning effective area capacity oil clamp arm flow 1) in in 2 in 3 Sold Un- Un- separately lbs lamp Total lamp clamp lamp clamp in 3 /min 26 Single acting Model number 2) SLLS-21 SLRS S SLLS-51 SLRS S SLLS-92 SLRS S SLLS-121 SLRS S SLLS-201 SLRS S SLLS-351 SLRS S-351 ouble acting Model number 2) SLL-21 SLR S SLL-51 SLR S SLL-92 SLR S SLL-121 SLR S SLL-201 SLR S SLL-351 SLR S-351 1) With standard clamp arm. lamp arms are sold separately (26). lamping forces for single-acting models are reduced in order to overcome return spring force.» 2) or models with straight plunger movement, replace L or R with S. imensions in inches [ ] 2008 Note: all Enerpac to order models with S port connections. Left turning models 1 Ø 1 2 Ø H K M Single acting SLLS SLLS SLLS SLLS SLLS SLLS ouble acting SLL SLL SLL SLL SLL SLL NOTE: dimensions shown with standard clamp arm.

15 imensions & options SL series Installation dimensions in inches lamping Mounting Minimum Manifold O-ring 2) force 1) thread thread depth R number or lbs J J2 inside Ø x thickness 500 # M x x x.139 1) With standard clamp arm. 2) olyurethane, 92 urometer -21, 51, , 201, (3x) 1 N V 2 U = lamping = Unclamping (venting) H type 21 SE #2 51, 121 SE #4.98 S Q X Note: Mounting bolts and O-rings included. T K 1 2 R type 92 G1/4" 201, 351 SE #4 S H Manifold O-ring 1 V N Q R S T U V X UN ø lbs Q X U N J T K U M J2 Right turning models Single acting SLRS SLRS M10x1, SLRS SLRS SLRS SLRS-351 ouble acting SLR SLR M10x1, SLR SLR SLR SLR-351 NOTE: U = bolt circle ø orce: lbs Stroke: inch ressure: psi E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder Options lamp arms ollet-lok swing cylinders ccessories Important 30, 45, and 60 degree rotations are available upon request. dd -30, -45 or -60 to end of standard model number to order directly from Enerpac. To order rotation limiter separately, see page 26. ustom cylinders including longer stroke lengths are available on request. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. o not exceed maximum flow rates Linear cylinders ower sources Valves System

16 - Threaded body models Shown: STR-51, STR-201 ylinders can be threaded directly into fixture can be secured at any height ody thread for precise cylinder height positioning Threaded port connection Easy installation and removal Greatest flexibility in fixture design 30, 45 and 60 degree swing angles available on request ST series Enerpac threaded body swing cylinders are threaded directly into the fixture. The cylinder height is adjusted to the appropriate height, and then locked in place using a flange nut ( 78). SE oil connection lange nut Threaded body swing cylinders allow the clamp to be buried in the fixture to minimize the required area, while the height remains adjustable. roduct selection lamping Stroke Left Right ylinder Oil Max. Standard force 1) turning turning effective area capacity oil clamp arm flow 1) in in 2 in 3 Sold Un- Un- separately lbs lamp Total lamp clamp lamp clamp in 3 /min 26 Single acting Model number 2) STLS-21 STRS S STLS-51 STRS S STLS-92 STRS S STLS-121 STRS S STLS-201 STRS S STLS-351 STRS S-351 ouble acting Model number 2) STL-21 STR S STL-51 STR S STL-92 STR S STL-121 STR S STL-201 STR S STL-351 STR S-351 1) With standard clamp arm. lamp arms are sold separately ( 26). lamping forces for single-acting models are reduced in order to overcome return spring force. 2) or models with straight plunger movement, replace L or R with S. imensions in inches [ ] Note: all Enerpac to order models with S port connections. Left turning models 1 2 Ø 1 2 Ø H J1 Single acting STLS UN STLS UN STLS M48 x 1, STLS UN STLS UN STLS UN ouble acting STL UN STL UN STL M48 x 1, STL UN STL UN STL UN NOTE: dimensions shown with standard clamp arm

17 imensions & options ST series ccessory hart Model Nos. Mounting lange Left Right flange nut turning turning Sold Sold 90 Separately Separately Single acting orce: lbs Stroke: inch ressure: psi E ilindros giratorios STRS-21 STRS-21 M-281 N-281 STRS-51 STRS-51 W-5 M-351 N-351 STRS-92 STRS-92 M-482 N-482 STRS-121 STRS-121 W-89 M-481 N-481 STRS-201 STRS-201 W-19 M-651 N-651 STRS-351 STRS-351 W-90 M-801 N-801 ouble acting STR-21 STR-21 M-281 N-281 STR-51 STR-51 W-5 M-351 N-351 STR-92 STR-92 M-482 N-482 STR-121 STR-121 W-89 M-481 N-481 STR-201 STR-201 W-19 M-651 N-651 STR-351 STR-351 W-90 M-801 N , 51, , 201, J1 H type 21 SE #2 51, 121 SE #4 K Q 1 = lamping = Unclamping (venting) N T 1 22, type 92 G1/4" 201, 351 SE #4 M K 2 H K M N Q T W W J1 Q 1 N T 1 Right turning models Single acting unc STRS unc STRS M10 x 1, STRS unc STRS unc STRS unc STRS-351 ouble acting unc STR unc STR M10 x 1, STR unc STR unc STR unc STR-351 lbs Vérins de bridage pivotants Schwenkspannzylinder Options lamp arms ollet-lok swing cylinders ccessories Important 30, 45, and 60 degree rotations are available upon request. dd -30, -45 or -60 to end of standard model number to order directly from Enerpac. To order rotation limiter separately, see page 26. ustom cylinders including longer stroke lengths are available on request. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. o not exceed maximum flow rates. Linear cylinders ower sources Valves System

18 - artridge models Shown: SR-122, SR-52 Eliminates the need for tubing and fittings cylinders can be designed into narrow fixture plates as thru-hole mounting is fully functional Minimal space required on fixture an be completely recessed in fixture External plumbing not required llows close positioning of adjoining units 30, 45 and 60 degree swing angles available on request S series Enerpac cartridge swing cylinders are designed for integrated manifold mounting. This eliminates the need for fittings and tubing on the fixture. artridge swing cylinders simplify mounting and optimize clamping effectiveness. Hydraulic fixture with on two faces for more efficient production. Enerpac compact design cartridge model swing cylinders used in conjunction with a cartridge model work support in a typical clamping application. roduct selection lamping Stroke Left Right ylinder Oil Max. Standard force 1) turning turning effective area capacity oil clamp arm flow 1) in in 2 in 3 Sold 90 Un- Un- separately lbs lamp Total lamp clamp lamp clamp in 3 /min 26 Single acting Model number 2) SLS-22 SRS S SLS-52 SRS S SLS-122 SRS S-121 ouble acting Model number 2) SL-22 SR S SL-52 SR S SL-122 SR S-121 1) With standard clamp arm. lamp arms are sold separately ( 26). lamping forces for single-acting models are reduced in order to overcome return spring force. 2) or models with straight plunger movement, replace L or R with S. imensions in inches [ ] Left turning models Ø 2 Ø E hexagon Single acting SLS SLS SLS ouble acting SL SL SL NOTE: dimensions shown with standard clamp arm

19 imensions & options S series Installation dimensions in inches -22 models orce: lbs Stroke: inch ressure: psi -22, 52, 122 models 1 2 W J1 E ø Q ø2 øj K T 1-52 models -122 models R and lend * Minimum plate height for single-acting models. ** Minimum plate height for double-acting models. J J1 K Q T W 1.88 min.** 2.00 min.** 1.62 min.** Right turning lbs models Single acting M28 x 1, UN SRS-22 M42 x 1, UN SRS-52 M60 x 1, UN SRS-122 ouble acting M28 x 1, UN SR-22 M42 x 1, UN SR-52 M60 x 1, UN SR ø ø ø ø ø M28 x 1, ø ø ø M42 x 1, ø ø ø M60 x 1, ø max ø max ø max ø min.* min.* min.* E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder Options lamp arms ccessories ollet-lok swing cylinders Sequence valves Important 30, 45, and 60 degree rotations are available upon request. dd -30, -45 or -60 to end of standard model number to order directly from Enerpac. To order rotation limiter separately, see page 26. ustom cylinders including longer stroke lengths are available on request. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. o not exceed maximum flow rates. Linear cylinders ower sources Valves System

20 S series Shown: S-3, S-1 S series These swing cylinders rotate 90 as they begin their stroke, continuing without rotation for the final clamping stroke. ylinders can be changed to left swing, right swing, or pull applications by loosening the side plug and then rotating the plunger to a desired position. The S-1 and S-3 include a retract spring for single-acting operation. oth cylinders can be operated as double-acting cylinders by connecting a retract line to the vent port. Model number hangeable swing function with 360 fully adjustable clamp arm hangeable swing function: clamp arm movement can be adjusted to left or right swing, or straight pull function clamp arm swing arc Easy installation: built-in mountings and brackets ompact design for use in limited space applications Easy and precise locating of arm for clamp positioning Single or double-acting cylinders to suit variety of hydraulic requirements Selection chart roduct dimensions in inches [ ] lamping Stroke Model ylinder Oil force 1) number effective capacity area in in 2 in 3 lbs lamp Total ull ush ull ush S S ) With standard clamp arm (included with cylinder). Note: - Long clamps arms can be fabricated by the user. - or long clamp arms, use V series flow control valves. S-1 G 2 H.40 U G Q.50 1 U UN G1 90 H1 1 W 2 U Q S-3 G H E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder ressure: psi G1 orce: lbs Stroke: inch rm Max. lamping length pressure force in psi lbs S ) S ) ) Standard clamp arm (included) U UN 90 H G G1 H H1 Q U U1 W UN NT NT UN lbs S S W

21 Swing clamps S series orce: lbs djustable clamping stroke Shown: S-30 Stroke: inch ressure: psi E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder E L turns clockwise or counter-clockwise djustable bolt in clamp arm for clamping stroke adjustment Low profile, ideal for limited space applications Quick swing action allows clamp arm to swing free of cutter and reclamp after it has passed clamp arm swing arc S-30, -100 K ylinder Stroke Model Operating ylinder Oil Max. capacity number pressure effective capacity oil flow area Model number Selection chart lamping position Rest position lbs in psi in 2 in 3 in 3 /min lbs S S roduct dimensions in inches [ ] E G H J K L N U V J N NT UN ø S S V H U G S series lamping arm rotates 97 clockwise or counter-clockwise (requires easily changed rotation spring) to position itself over the workpiece. Then, a vertical plunger exerts an upward thrust on the back end of the swing arm providing a powerful downward pressure to clamp the workpiece. Important or high cycle applications use double-acting cylinders. View of a machining fixture with S-30 clamping cylinders. Linear cylinders ower sources Valves System

22 Three-position swing cylinder pplication & selection Shown: WTR-24 Unobstructed part loading lunger rotates only when cylinder is fully extended, to minimize obstructions Ideal for mounting beneath the fixture, as the clamp does not rotate until the workpiece has been cleared Stainless steel body for additional corrosion resistance Three port design for fewer hydraulic connections ully threaded body for easy installation Standard two sided clamp arm included lamp arm design makes mounting easy WTR series The three position swing cylinder rotates 90 only after the plunger has completely extended. This feature allows the clamp to be mounted beneath the workpiece, where the clamp travels through the part for clamping. Operation sequence The three position swing cylinder is ideal for parts which have a through hole. The clamp allows completely unobstructed part loading. Step 1 ressurize port. lunger extends through workpiece. Step 2 Keep port pressurized. ressurize port. lunger makes 90 flat rotation. Selection chart Step 3 Keep port pressurized. ressurize port. lunger retracts: clamp force is applied. Step 4 Keep port pressurized. ressurize port. lunger extends: clamp force is released. Step 5 Keep port pressurized. epressurize port. lunger makes 90 flat rotation. Step 6 ressurize port. lunger retracts through workpiece. lamping Stroke Model ylinder Oil capacity Max. Maximum force 1) number 2) effective oil flow cycle rate area in 2 in 3 cycles lbs in lamp. Unclamp. lamp. Unclamp. in 3 /min /min WTR-24* ) When using optional -28 clamp arm, max. operating pressure is 2000 psi. 2) Standard clamp arm included. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design.

23 imensions & options WTR series WTR-24 orce: lb 1.25 Stroke: 2.50 inch ressure: psi = dvance = Retract = Rotate /4"-16UN ø 1.00 Optional -28 clamp arm 4.62 SE # The WTR-24 has a two-sided standard clamp arm included. The -28 clamp arm can be used to secure the workpiece on one side only, though the clamping pressure must be reduced to 2000 psi maximum /16"-20 UNE /16"-20 UN.50 E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder Options High pressure filters ittings Valves Important It is highly recommended that system filtration be used to ensure reliable operation. o not exceed maximum pressure and flow rates. or recommended valving schemes, please refer to our lamp arm movement: 90 ± 3 flat rotation. lamping stroke 161 Linear cylinders ower sources Valves System b 5 /16"-24 UN

24 - ollet-lok design Shown: WR-100, WTR-100 Ideal when live hydraulics are not available clamping is maintained mechanically so live hydraulics are not required during the machining cycle ouble acting ollet-lok action allows fully automated operation dditional level of safety since live hydraulics are not required to maintain clamping force ollet-lok swing cylinders can be mounted by the flange, or threaded into the fixture. langed models for manifold mount are available as a custom option Lower flange ollet-lok swing cylinder mounted on a pallet. 24 W series Enerpac ollet-lok cylinders are designed to mechanically hold the workpiece after hydraulic pressure is removed. lamping capacities range from 1000 lbs. to 8500 lbs. SE oil connection lange nut ollet Wedge Hydraulic pressure pushes the collet up a wedge, locking the plunger in the clamping position. Selection chart lamping Stroke Left Right ylinder Oil Max. Standard force 1) turning turning effective area capacity oil clamp arm flow 1) in in 2 in 3 Sold 90 Un- Un- separately lbs lamp Total lamp clamp lamp clamp in 3 /min 26 Lower flange Model number WL-50 WR WL-100 WR WL-300* WR-300* Threaded body Model number WTL-100 WTR WTL-300* WTR-300* ) Using standard clamp arm. lamp arms are sold separately ( 26). ollet-lok sequence Step 1 ressurize port #1. lunger turns 90 and clamps part. Note: - all Enerpac for models with metric thread and S port connections. - Mini mum working pressure for ollet-lok system is 1400 psi. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. roduct dimensions in inches [ ] Step 2 Keep port #1 pressurized. ressurize port #2. lunger will be locked in clamped position. Left turning models 1 Ø 1 Ø Ø H1 H2 H3 Lower flange WL WL WL-300* Threaded body WTL un WTL-300* un Note: imensions shown with standard clamp arm. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design Step 3 epressurize port #1 and #2. Uncouple cylinder from hydraulic power source. art will be held in place Step 4 ressurize port #3. lunger will be unlocked and the clamp force released Step 5 Keep port #3 pressurized. ressurize port #4. lunger will extend and turn to its original position.

25 imensions & options W series Installation dimensions in inches lamping ixture Mounting Minimum force 1) hole thread depth lbs Ø 3 J mm J2 Lower flange ±.012 M6 x 1, ±.012 M8 x 1, ±.012 M10 x 1,50.72 lamping ixture Mounting Mounting force 1) hole flange nut Sold Sold separately separately lbs Ø Threaded body un M-481 N un M-801 N-801 1) With standard clamp arm. W modelswt models H (6x) J (3x) 3 1 øj ø ø T V Q K W U H3 H2 J1 H1 ø3 3 2 øj ø J ø1 H1 ø X X SE #4 4 SE #2 ø1 J2 Oil port functions 1 90 Rotation and clamp 2 Locks system 3 Unlocks system 4 Unclamp and 90 rotation T X = 45 WT-100 models X = 30 WT-300 models J J1 K L Q T U V W UN UN lbs Q 1 L ø3 lange Nut K W Right turning models Lower flange WR WR WR-300* Threaded body WTR WTR-300* E ilindros giratorios Vérins de bridage pivotants Schwenkspannzylinder Stroke: inch ressure: psi ustom Options vailable Intermediate capacities Manifold mounting 60 Options ifferent flange locations 60 lexible Machining Systems See Yellow ages ( 184) lamp arms ollet-lok work supports Sequence valves orce: lbs ccessories Important Minimum unlock pressure must be at least 1500 psi above lock pressure. Linear cylinders ower sources Valves System

26 lamp arms for swing cylinders Shown: L-122, S-121 atented esign Easy and precise location of the clamp arm in any position rm can be easily installed and fastened while the cylinder is mounted in the fixture to allow exact arm positioning Vise not required for fastening arms ressure vs clamping force Enerpac s patented clamp arm design attaches to the hydraulic swing cylinder, allowing parts to be clamped at various distances from the hydraulic cylinder. lamp arms are available in a variety of lengths, or you can use custom machining dimensions to create your own clamp arm configuration. Ordering rotation limiting spacers UIL YOUR RT NUMER: S lamp force ngle 02 = 500 lbs = 1250 lbs = 2025 lbs = 2600 lbs 20 = 4200 lbs 35 = 7600 lbs Example: S converts a 2600 lb. swing cylinder to 45 degree rotation. The addition of this spacer requires minor disassembly of the clamp. If you are uncomfortable doing this, please contact an authorized Enerpac Service enter. The use of different length clamp arms requires reduction in applied pressure and resulting clamp force. The charts below show this relationship. -21 models Max. allowable arm weight =.24 lbs lamping force (lbs) Ë Á ressure (psi) S rm length (in) Ë L 12 Á Max. flow (in 3 /min) 6-92 models Max. allowable arm weight = 1.34 lbs Á ressure (psi) lamping force (lbs) Ë S rm length (in) Ë L 61 Á Max. flow (in 3 /min) models Max. allowable arm weight = 2.86 lbs lamping force (lbs) Ë Á ressure (psi) S rm length (in) Ë L 152 Á Max. flow (in 3 /min) models Max. allowable arm weight =.55 lbs lamping force (lbs) Ë -121 models Max. allowable arm weight = 1.54 lbs lamping force (lbs) Ë Á ressure (psi) S rm length (in) Ë L 98 Á Max. flow (in 3 /min) models Max. allowable arm weight = 4.85 lbs lamping force (lbs) Ë Á ressure (psi) S rm length (in) Ë L 24 Á Max. flow (in 3 /min) 12 Á ressure (bar) S rm length (in) Ë L 244 Á Max. flow (in 3 /min)

27 imensions & options series S modelsl Standard clamp arms models G E E G 2 L J K1 K2 Q H models ositive locking ustom design (for SU, SL, ST and S models only) ø.003" [0,08 mm] J ø1 imensions in inches [ ] Q G G E K2 Y Z K1 Y H L Long clamp arms J lamp. Model E G H J L Q force number lbs Standard clamp arms 500 S UN S UN S M10x1, M10x1, S UN S UN S UN Long clamp arms 500 L M6x L M8x L M10x1, L M10x1, L M12x1, L M16x1, lamp. Model 1 2 E G J K1 K2 Q force number lbs ositive locking clamp arms ø UN UN UN lbs L Z øo E J ø H R orce: lbs Stroke: psi E razos de amarre ras de bridage Spannarme Options Gauges low control valves Important o not exceed maximum oil flow. If flow rates are exceeded, swing cylinder indexing mechanism may be permanently damaged. Index mechanism When designing custom clamp arms, the flow rates must be further reduced. This rating should be in proportion to the mass and the center of gravity of the clamp arm. Example: If the mass of the arm is twice that of the long arm, flow rates must be reduced by 50%. lamp. 1 1) 2 E G H J K1 K2 L O R force lbs ø ø ø ø ustom design clamp arms 2) (Recommended machining dimensions) M5x0, M6x1, M8x1, UN M10x1, M10x1, ) Surface roughness for 1 should be 63 micro inches. 2) Not for use with positive locking cylinders UN lbs Linear cylinders ower sources Valves System

28 ivoting T-rms for double-acting swing cylinders Shown: -202, T-202; -352, T-352 lamping two workpieces with one cylinder quick and precise clamp arm positioning Easy and precise location of the clamp arm in any position rm can be easily installed and fastened while the cylinder is mounted in the fixture to allow exact arm positioning Vise not required for fastening arms or threaded into the fixture -92, -202 and -352 are only to be used on double-acting cylinders 01_001_1 lamp arms are used to transmit the force generated by the swing cylinder to the workpiece. The T-arm clamps two workpieces simultaneously with one swing cylinder. Enerpac recommends using the pivoting T-arms with doubleacting swing cylinders of the SU, SL, ST and S-series. Two workpieces are clamped simultaneously with one doubleacting swing cylinder by using the Enerpac pivoting T-arm. llowable flow vs arm length The distribution of the clamp arm force is based upon the length of the T-arm as measured from the pivoting point. -51,-92, -121 models llowable Oil low 125 Oil low (in 3 /min) Ë Important L1 L = L1 + L2 T = L T L2 2 L2 1 = T x L1 + L2 L1 2 = T x L1 + L2-201, -351 models llowable Oil low 250 Oil low (in 3 /min) Ë _0002 T-rm Length L (in) Ë T-rm length L (in) Ë

29 imensions & options, T series Shown: models E ollars for T-arms H G orce: lbs Stroke: psi E razos de amarre ras de bridage 01_003 01_004 ollars - imensions in inches [ ] lamp. Model Max. tilt 1 2 E G H force number angle lbs mm lbs ollars for T-arms Shown: T-202 K G H 1 T models T-arms imensions in inches [ ] J T-arms (for SU, SL, ST and S swing cylinders) L L1 L2 lamp. Model 1* 2 G H J K L L1 L2 force number lbs mm lbs ivoting T-arms Installation dimensions in inches [ ] lamping T-arm SU- SU-L- SL- ST- Sforce model series series series series series lbs T-arm installation dimensions - ully unclamped position SU ST 1 3/16" Silicon, 40 urometer M4x0, M5x0, M5x0, M6x1, M8x1, T M3x0, T M4x0, T M4x0, T M6x1, T M6x1, * Note: 1 equals set screw thread size. Set screw must be long enough to secure the pivot pin. 2 SL S Spannarme Options Gauges low control valves ownload files from 30, 45, and 60 degree rotations are available upon request. Important or high cycle applications use double-acting cylinders. o not exceed maximum oil flow. If flow rates are exceeded, swing cylinder indexing mechanism may be permanently damaged. Index mechanism When designing custom clamp arms, the flow rates must be further reduced. This rating should be in proportion to the mass and the center of gravity of the clamp arm. Example: If the mass of the arm is twice that of the long arm, flow rates must be reduced by 50%. Linear cylinders ower sources Valves System

30 Upreach clamp arms for swing cylinders Shown: U-352, U-122, U-22 atented esign Upreach design allows more flexible part clamping rm can be easily installed and fastened while the cylinder is mounted in the fixture to allow exact arm positioning Vise not required for fastening arms rm length can be cut to desired size ngled arm with minimal deflection achieves maximum workpiece contact Enerpac s patented upreach clamp arm design attaches to the hydraulic swing cylinder, allowing parts to be clamped at various distances from the hydraulic cylinder. lamp arms are available in an extended length which can be machined to fit your unique requirements. Important o not exceed maximum oil flow. If flow rates are exceeded, swing cylinder indexing mechanism may be permanently damaged. Index mechanism When designing custom clamp arms, the flow rates must be further reduced. This rating should be in proportion to the mass and the center of gravity of the clamp arm. Example: If the mass of the arm is twice that of the long arm, flow rates must be reduced by 50%. ressure vs clamping force The use of different length clamp arms requires reduction in applied pressure and resulting clamp force. The charts below show this relationship. -22 models lamping force (lbs) Ë Á ressure (psi) rm length (in) Ë 12 Á Max. flow (in 3 /min) 6-92 models Á ressure (psi) lamping force (lbs) Ë rm length (in) Ë 61 Á Max. flow (in 3 /min) models Á ressure (psi) lamping force (lbs) Ë rm length (in) Ë 152 Á Max. flow (in 3 /min) models lamping force (lbs) Ë -122 models lamping force (lbs) Ë -352 models lamping force (lbs) Ë Á ressure (psi) Á ressure (psi) rm length (in) Ë 24 Á Max. flow (in 3 /min) rm length (in) Ë 98 Á Max. flow (in 3 /min) 49 Á ressure (psi) rm length (in) Ë 244 Á Max. flow (in 3 /min)

31 imensions & options U series ngled arms use deflection to improve clamping ngled arms Tip engages part first and contact increases as clamping force is applied. Eliminates push effect caused by straight arms deflecting under load. Straight rms Great for most applications, but standard deflection can cause part movement and lower the true clamping force. G J SU L L L L 1 L SL H ST Installation dimensions in inches [ ] Model lamp SU-Series SL-Series ST-Series S-Series number force L Stock length dimensions U U U U U U Minimum length dimensions U U U U U U U models Upreach clamp arms imensions in inches [ ] E K M 1 J S 1 orce: lbs ressure: psi E razos de amarre ras de bridage Spannarme Options Sequence valves low control valves U M10X1, Refer to clamping force charts on page 30 of E214. Never cut shorter than indicated minimum length ownload files from Model E G H H J K L L M number Std. Min. Std. Min. Std. Min. Std. Min. lbs U M6X U M6X1, U M8X1, U M10X1, U M10X1, Linear cylinders ower sources Valves System

32 pplication & selection Shown: WS-100, WL-111, W-72, WL-441 Wide range of sizes and types to efficiently support workpiece Low pressure lock-up capability enables the use of machine tool hydraulic systems High rated support capacities allow for more compact fixture design orrosion resistant materials, compatible with most coolants and environments Threaded and manifold air vent ports allow fixturing that prevents coolants from being drawn into the system Minimized deflection increases machining accuracy Multiple mounting configurations allow design flexibility The Enerpac work support is a hydraulic means of positively supporting the workpiece to minimize deflections. The work support automatically adjusts to the contour of the workpiece, and then locks in position. This support then adds rigidity to the fixtured component to minimize machining variations. Lower flange work supports, placed close to the machining area to minimize deflection of the workpiece ollet-lok positive locking models: Hydraulic actuation / mechanical holding allows for palletized systems which do not permit live hydraulics Select your work support method: W series, Hydraulic advance Retracted plunger allows unobstructed workpiece loading. Internal hydraulic plunger advances allowing external plunger to advance under spring load. ronze sleeve squeezes and holds plunger in fixed position. WS series, Spring advance Workpiece weight compresses the spring of the extended plunger. When pressurized, the internal bronze sleeve squeezes and holds the plunger in fixed position. an be operated as air advance. W series, ollet-lok positive locking Unique in the industry. llows the work support to maintain support after pressure has been removed. Extremely low deflections due to the structural design of the collet system. Low lockup pressure

33 Select your mounting method: Manifold mount oes not require external plumbing ompact design, when space is at a premium Internal plunger thread for optional contacts orce: ,000 lbs Stroke: inch ressure: psi E ilindros de soporte Threaded body bility to adjust height lumbed from either side or bottom Internal plunger thread for optional contacts Lower flange lumbed directly or manifold mounted No fixture hole required Easy to assemble or disassemble Internal plunger thread for optional contacts artridge style oes not require external plumbing llows close clustering of work supports ompact design, when space is at a premium Internal plunger thread for optional contacts roduct selection Maximum Stroke Manifold Threaded Lower artridge support mount body flange style force lbs in Hydraulic advance Model number WM-71 WT-71 W WL-111 W WL-221 W WL , WL-441 Spring advance Model number WSM-71 WST-71 WS WSL-111 WS WSL-221 WS WSL , WSL-441 ositive locking Model number Vérin anti-vibreur bstützzylinder ccessories In line filters Sequence valves Options Swing cylinders Important WRNING! Support force and clamping force must be matched. Support force should be at least 200% of clamping force. o not exceed maximum flow rates to avoid premature lockup. lways center load over work support. Linear cylinders ower sources Valves System WTS-100 WS WTS-200 WS

34 - Hydraulic advance Shown: WM-71, WL-111 or unobstructed part loading lunger stays retracted until pressure is applied allowing unobstructed loading Low pressure lock-up capability enables the use of machine tool hydraulic systems High rated support capacities allow for more compact fixture design orrosion resistant materials compatible with most coolants and environments Threaded and manifold air vent ports allow fixturing that prevents coolants and debris from being ingested into the mechanism Minimized deflection increases machining accuracy Multiple mounting configurations for design flexibility ontact bolt included W series Enerpac work supports provide either additional non-fixed location points to the clamps, or support to larger or thin section workpiece, always in order to minimize workpiece deflection during machining. In order to load the workpiece sideways over the work supports, hydraulic advanced models are being used. our mounting styles WM series, Manifold models Eliminates the need for fittings and tubing on the fixture. WL series, Lower flange models lumbed directly no fixture hole required. Support force (lbs) Ë 10, Support force vs pressure W-441 W-331 W-221 W-111 W-112 W-71 W ressure (psi) Ë roduct selection Elastic deflection (inch) Ë WT series, Threaded models Offers the flexibility of side or bottom porting. W series, artridge models an be designed into narrow fixture plates as thru-hole mounting is fully functional. Elastic deflection vs load pplied load (lbs) Ë W-441 W-331 W-221 W-111 W-112 W-71 W ,000 eflection chart: Elastic deformation of the work support resulting from the application of load. Max. Support Manifold Threaded Lower artridge Operating lunger Oil Max. support plunger mount body flange style pressure contact capacity oil force stroke spring flow force psi lbs in 3 / lbs in min. max. ext. retr. in 3 min WM-71 WT-71 W WL-111 W WL-221 W Elastic deformation WL , WL-441* * This product is made to order. lease contact Enerpac for delivery information before specifying in your design

35 imensions & options W series WM serieswt series W 1 H1 M L E K WL series W series 2.28 U1 SE # L E K N N U2.284 ir breather ilter Vent 1 /8"-27NT H2 ir port 1 1 L 1 L E K 1 M E K ø2 ø N W M N SE #2 W Locking port Vent port * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. ** Note: imension N is factory set. May change on types 221, 331 and 441 due to adjusted contact spring force. Note: or manifold mounting dimensions ( 40). E orce: ,000 lbs Stroke: inch ressure: psi ilindros de soporte Vérin anti-vibreur bstützzylinder Options ccessories In-line filters Important WRNING! Support force and clamping force must be matched. Support force should be at least 200% of clamping force. o not exceed maximum flow rates to avoid premature lockup. ustom cylinders including longer stroke lengths are available on request. roduct dimensions in inches [ ] Mounting dimensions 40 Model number E H1 H2 K L M N** U1 U2 W mm lbs WM UN M10x1, WT UNE M10x1, WL UNE M10x1, WL UN M20x2, WL M20x2, WL-441* M20x2, W M33x1, M10x1, W M42x1, M10x1, W M60x1, M20x2, SE # Linear cylinders ower sources Valves System

36 - Spring advance Shown: WSL-111, WST-71 WS series Enerpac work supports provide either additional non-fixed location points to the clamps, or support to larger or thin section workpiece, always in order to minimize workpiece deflection during machining. Spring advance work supports with extended plungers, waiting for the next workpiece. Spring advance work support contacts workpiece as it is loaded into fixture Low pressure lock-up capability enables the use of machine tool hydraulic systems High rated support capacities allow for more compact fixture design orrosion resistant materials, compatible with most coolants and environments Threaded and manifold air vent ports allow fixturing that prevents coolants from being drawn into the system Minimized deflection increases machining accuracy Multiple mounting configurations allow design flexibility an be operated as air advance by removing the spring and applying air pressure on the vent port Mounting style WSM series, Manifold mount Eliminates the need for fittings and tubing on the fixture. WSL series, Lower flange lumbed directly no fixture hole required. Support force (lbs) Ë 10, Support force vs pressure WS-441 WS-331 WS-221 WS-111 WS-112 WS-71 WS ressure (psi) Ë roduct selection Elastic deflection (inch) Ë WST series, Threaded body Offers the flexibility of side or bottom porting. WS series, artridge mount style an be designed into narrow fixture plates as thru-hole mounting is fully functional. Elastic deflection vs load ,000 pplied load (lbs) Ë WS-441 WS-331 WS-221 WS-111 WS-112 WS-71 WS-72 eflection chart: Elastic deformation of the work support resulting from the application of load. Max. Support Manifold Threaded Lower artridge Operating lunger Oil Max. support plunger mount body flange style pressure contact capacity oil force stroke spring flow force psi lbs in 3 / lbs in min. max. ext. retr. in 3 min WSM-71 WST-71 WS WSL-111 WS WSL-221 WS WSL , WSL-441* * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. Elastic deformation

37 imensions & options WS series WSM serieswst series W 1 H1 M L E K WSL series WS series 2.28 U1 SE # L E K N N U2.284 ir breather ilter Vent 1 /8"-27NT H2 ir port 1 1 L 1 L E K 1 M E K ø2 ø N W M N SE #2 W Locking port Vent port * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. ** Note: imension N is factory set. May change on types 221, 331 and 441 due to adjusted contact spring force. Note: or manifold mounting dimensions ( 40). E orce: ,000 lbs Stroke: inch ressure: psi ilindros de soporte Vérin anti-vibreur bstützzylinder Options ccessories In-line filters Important WRNING! Support force and clamping force must be matched. Support force should be at least 200% of clamping force. o not exceed maximum flow rates to avoid premature lockup. ustom cylinders including longer stroke lengths are available on request. roduct dimensions in inches [ ] Mounting dimensions 40 Model number E H1 H2 K L M N** U1 U2 W mm lbs WSM UN M10x1, WST UNE M10x1, WSL UNE M10x1, WSL UN M20x2, WSL M20x2, WSL-441* M20x2, WS M33x1, M10x1, WS M42x1, M10x1, WS M60x1, M20x2, SE # Linear cylinders ower sources Valves System

38 - ollet-lok design Shown: WS-100, WTS-100 Hydraulically locked, mechanically maintained work support ollet-lok design allows the work support to maintain support position after the hydraulic pressure is removed ollet Lok maintains a higher level of safety, as it is not dependent on hydraulic supply pressure Low deflection: lowest deflection of any work support available Threaded or flanged body increases mounting flexibility apacities up to 10,000 lbs available on request W series Enerpac work supports provide either additional non-fixed location points to the clamps, or support to larger or thin section workpiece, always in order to minimize workpiece deflection during machining. The ollet-lok design does not require hydraulic system pressure to maintain support position. While pallet No. 1 is in the machining chamber, a new work piece is loaded on to pallet No. 2. ollet-lok sequence Step 1 Install the workpiece on the support cylinder. The plunger position will adjust to the contour of the workpiece. Mounting style WT series, Threaded mount Offers the flexibility of side or bottom porting. roduct selection Step 2 ressurize oil port #1. The plunger will be locked in the supporting position. Step 3 epressurize oil port #1. ylinder can be uncoupled from hydraulics and still support the workpiece. W series, lange models lumbed directly, no fixture hole required Step 4 ressurize oil port #3. The plunger will be unlocked. When the workpiece is removed, plunger will extend into its original position. Max. Support lange Threaded Operating Locking lunger Max. support plunger models models pressure system contact oil force stroke displacement spring flow psi in 3 lbs in min. max. ext. retr. in 3 min WS WS WTS WTS apacities up to 10,000 lbs. available on request

39 imensions & options W series Support force (lbs) 10, Support force vs pressure L 60 (6x) W-200 W ressure (psi) K E1 E S H 1 V U 1 Elastic deflection (inch) Elastic deflection vs load pplied load (lbs) WS-100, -200WTS-100, -200 Model number SE #4 roduct dimensions in inches [ ] L H W W-200 W , K E E1 1 3 S M eflection chart: Elastic deformation of the work support resulting from the application of load. 1 Elastic deformation orce: lbs Stroke: 0.39 inch ressure: psi E ilindros de soporte Vérin anti-vibreur bstützzylinder Options ollet-lok swing cylinders utocouplers ositive clamping cylinders Sequence valves Important WRNING! Support force and clamping force must be matched. Support force should be at least 200% of clamping force. or proper application, clamp force, pressures and timing, consult Enerpac for support. 1 1 E E1 H K L M S U V W lange models WS WS Threaded models WTS WTS SE #2.79 UN lbs Linear cylinders ower sources Valves System

40 Mounting dimensions for work supports Shown: WL-111 holding a casting in place. Manifold work support mounting dimensions Eliminates the need for fittings and tubing on the fixture. Use a flange nut to secure your manifold work support. WM/WSM 63 R oto 30007_5 Mounting work supports Enerpac work supports are offered in a wide variety of mounting styles. imensions for fixture holes and cavity preparation are specified for each mounting style separately. The combination of Enerpac swing cylinders and work supports guarantee clamping without deformation. roduct dimensions in inches [ ] Model R Manifold lange number O-ring 1) nut ø or manifold mount work supports WM UN R-017 N-301 WSM UN R-017 N-301 1) olyurethane 92 duro. Threaded work support mounting dimensions Threaded body work supports can be mounted directly into a fixture. The thread size () can be found in the dimension charts on 35 (WT) and 37 (WST models). Use a flange nut to secure your threaded work support in the required position. Lower flange work support mounting dimensions Lower flange work supports can be bolted straight onto a fixture, or can be mounted into a fixture. lange nuts can be used to secure the cylinders at the required height. Note: It is critical to keep breather port open to clean dry location. roduct dimensions in inches [ ] WL/WSL series Model Q R S U1 U2 V Manifold lange numbers O-ring 1) nut ø ø or lower flange work supports WL UNE R-010 N-351 WL UN R-110 WL R-110 WL R-110 WSL UNE R-010 N-351 WSL UN R-110 WSL R-110 WSL R-110 1) olyurethane 92 duro. U2 reather port Hydraulic port R S Q U1 Q V R S

41 Mounting dimensions W/WS series artridge work support mounting dimensions an be designed onto narrow fixture plates as thru-hole mounting is fully functional. orce: ,000 lbs Stroke: inch ressure: psi E ilindros de soporte W/WS 1.61 Minimum plate height E ø Oil hannel ø ø ø ø R and blend imensions in inches [ ] Model E Ventilation numbers mm min. below required Hydraulic advance W M33x1, No W M42x1, Yes W M60x1, Yes Spring advance WS M33x1, No WS M42x1, Yes WS M60x1, Yes Note: Ventilation required on W-112, 222 below 1.61 inch when mounted in blind cavity. ositive locking work support mounting dimensions ositive locking work support mounting dimensions are indicated in the dimension chart on 39. or threaded models, use a flange nut to secure the work support in the required position. Vérin anti-vibreur bstützzylinder In-line filters ittings Swing cylinders Options ccessories Important WRNING! Support force and clamping force must be matched. Support force should be at least 200% of clamping force. o not exceed maximum flow rates to avoid premature lockup. lways center load over work support. Linear cylinders ower sources Valves System

42 Linear cylinders Linear ylinders wide variety of styles and features make Enerpac s linear cylinder line the most complete in the industry. Ranging from compact short stroke spring return cylinders to heavy-duty industrial grade double-acting automation cylinders, Enerpac has the cylinder to meet every application need. Whether you have to push it, pull it, clamp it, punch it, stamp it, press it, or hold it in place for days at a time, Enerpac has the cylinder to meet your need. Technical support Refer to the Yellow ages of this catalog for: Safety instructions asic hydraulic information dvanced hydraulic technology MS (lexible Machining Systems) technology onversion charts and hydraulic symbols

43 series page Link clamp / Link clamp arms LU L ull cylinder range overview Upper flange pull cylinders U Lower flange pull cylinders L Threaded body pull cylinders Linear cylinders Threaded cylinders dditional threaded cylinders Manifold cylinders lock cylinders ull down clamps Hollow plunger cylinders ositive clamping cylinders ositive locking push cylinders (ollet-lok ) Single-acting universal cylinders ouble-acting universal cylinders ylinder accessories T ST, T Y, WRT, WMT SM S EH, EM Y, HS, QH, RWH MRS W RW, MRW, RW R, Tie rod cylinder TR

44 Linear cylinders Link clamp pplication & selection Shown: LUS-31 Quick and accurate clamping action Hydraulic cylinder pushes linkage, rotating clamp arm into position esign ensures repeatable clamping location Linkage can be re-positioned to clamp at 90, 180, or 270 degrees from ports lamps can be mounted using supplied bolts or held in place with flange nut Standard arm or long arm ordered separately Link clamp allows unobstructed part loading and high clamping forces. The hydraulic cylinders extend to provide clamping force, and retract to allow part removal. rm completely retracts to allow part loading. s cylinder extends, arm rotates to clamp part in place. 44 rm location is changed easily without the use of tools. Left enter Right 2008 roduct selection lamping Stroke Model ylinder Oil Standard Long force 1) number effective capacity clamp clamp area arm arm (Sold separately) lbs in in 2 in 3 44 Single acting LUS LS-32 LL LUS LS-82 LL LUS LS-122 LL LUS LS-192 LL LUS-281* LS-282 LL-282 ouble acting LU LS-32 LL LU LS-82 LL LU LS-122 LL LU LS-192 LL LU-281* LS-282 LL-282 ontact Enerpac for models with metric threads and S ports. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. Model number imensions in inches [ ] ort Size E Single acting LUS-31 SE# UN LUS-81 SE# UN LUS-121 SE# UN LUS-191 SE# UN LUS-281* SE# UN ouble acting LU-31 SE# UN LU-81 SE# UN LU-121 SE# UN LU-191 SE# UN LU-281* SE# UN ontact Enerpac for models with metric threads and S ports. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design.

45 imensions & options LU series Installation dimensions in inches lamp force: lbs ull 1) ixture Mounting Min. Manifold O-ring 2) force hole thread depth R No. or lbs Ø 3 J UN J2 Inside Ø x thickness ) With standard clamp arm. 2) olyurethane, 92 urometer all models imensions shown with standard clamp arm. ouble acting: = lamping = Unclamping (venting) 2 E Note: Mounting bolts and O-rings included J K S S H X Y 1 U1 R Manifold O-ring N V ouble acting only H J K N R S U1 U2 V X Y 3 J J2 lbs Single acting ouble acting ø Stroke: inch ressure: psi E ilindros marre de enlace ride basculante Gelenkspanner Options lamp arms Important Single-acting cylinders use a regenerative circuit; oil is sent to both sides of the piston at the same time. This eliminates the breather port, reducing damage from coolant and contamination. lamp arm should be parallel to cylinder mounting surface within 3 to avoid damage to cylinder and linkage. Use the included set screw to adjust clamp arm alignment. Linear cylinders ower sources Valves System

46 lamp arms for link clamps Shown: LS-31 Standard or custom built vailable from Enerpac in standard or extended length Standard arm includes set screw and lock nut Long arm can be machined on-site to match your needs Make your own custom arm to suit specific applications Linear cylinders Standard arms are readily available from Enerpac to meet most applications. In applications that require a custom designed arm, the machining information is supplied on page 45. Important lamp point must be within the boundaries of the anchor links on the clamp. lamping outside of this area will cause damage to the linkage, leading to premature failure. llowable clamping area ressure vs clamping force ifferent length clamp arms will determine the amount of clamping force transferred to the workpiece. s the length increases, the clamping force decreases. -31 models lamping forces lamping force (lbs) Standard rm (LS) 2 in in in. Long rm (L L) ressure (psi) -81 models lamping forces lamping force (lbs) Standard rm (LS) 2.75 in in in. Long rm (L L) ressure (psi) -281 models lamping forces lamping force (lbs) Standard rm (LS) 4.75 in in in. Long rm (L L) models lamping forces lamping force (lbs) Standard rm (LS) 2.75 in in in. Long rm (L L) ressure (psi) -191 models lamping forces lamping force (lbs) Standard rm (LS) 3.50 in in in. Long rm (L L) ressure (psi) ressure (psi)

47 imensions & options LS/LL series LS models Standard rm orce: lbs Q J1 J2 ressure: psi E razos de amarre 2 E 1 L1 L2 N G K imensions in inches [ ] lamp Model capacity number 1 2 E G lbs Standard clamp arms 700 LS LS LS LS LS lamp. Model capacity number J1 J2 K L1 L2 N Q lbs Standard clamp arms 700 LS M6 x 1, LS M10 x 1, LS M12 x 1, LS M16 x 2, LS M20 x 2,5 LL models Long rm J1 J2 2 E L2 1 N G K NOTE: ustom arms should be manufactured using this print. Make sure to follow all precautions listed. imensions in inches [ ] lamp. Model 1 2 E G J1 J2 K L2 N capacity number lbs Long clamp arms 800 LL LL LL LL LL ras de bridage Spannarme Options Work supports ccessories Important lamp arm should be parallel to cylinder mounting surface within 3 to avoid damage to cylinder and linkage. Use the included set screw to adjust clamp arm alignment. +/- 3 Workpiece Linear cylinders ower sources Valves System

48 ull cylinders pplication & selection Shown: LSS-121, WT-110, US-121 ompact and full featured design Guided linear plunger movement ompact design allows for efficient fixture layout Variety of mounting styles to meet design needs Linear cylinders Internal plunger thread and flats across plunger top allow easy mounting of attachments hoice of porting styles to meet system and design requirements Single- and double-acting cylinders to suit a variety of hydraulic requirements 99_062 Hydraulic pull cylinders utilize hydraulic pressure to hold down parts in a fixture. The guided plunger maintains orientation during the full clamping cycle, eliminating the need for an external guide. Internally threaded plunger ends accept various custom attachments to assist in the clamping process. Enerpac offers both single- and double-acting pull cylinders, with capacities ranging from 600 to 9600 lbs. for pulling and 1,200 to 18,400 lbs. for pushing applications. Hydraulic fixture with pull and swing cylinders, manifold and threaded cylinders for positioning and holding the work piece during milling process of gun breeches Select your pull cylinder type: Single acting The obvious choice when there are few system restrictions, and there are not many units retracting simultaneously ewer valving requirements which results in a less complex circuit ouble acting When greater control is required during the unclamp cycle When heavy attachments are being used When timing sequences are critical: less sensitive to system back pressures resulting from long tube lengths or numerous being retracted at the same time or ollet-lok push cylinders, see

49 ull cylinders Select your mounting method: U series, Upper flange mounting lexible design allows for manifold or threaded oil port connection ixture hole does not require tight tolerances Easy installation with only 3 or 4 mounting bolts L series, Lower flange mounting lexible design allows for manifold or threaded port connection No fixture hole required Easy installation with only 3 or 4 mounting bolts T series, Threaded body mounting ody thread for precise cylinder height positioning Threaded oil port connection an be threaded directly into the fixture and secured in position by means of standard flange nuts roduct selection ylinder Stroke Upper flange Lower flange Threaded body capacity lbs ull ush in Single acting Model number USS-51 LSS-51 TSS USS-121 LSS-121 TSS-121 ouble acting Model number US-51 LS-51 TS US-92 LS-92 TS US-121 LS-121 TS-121 Note: - all Enerpac to order models with metric thread and S port connections. - ull forces for single-acting cylinders reduced to overcome spring force. ull force: lbs ush force: lbs Stroke: inch ressure: psi E ilindros de tracción Verins traction Zugzylinder Options ccessories 76 ollet-lok push cylinders 54 Swing cylinders Sequence valves Linear cylinders ower sources Valves Valves System

50 ull cylinders - Upper flange models Shown: USS-51, US-121 Minimal mounting height when space is at a premium Guided linear plunger movement lexible design allows for manifold or threaded port connection Low profile mounting style allows body to be below mounting surface Linear cylinders Internal plunger thread allows easy mounting of attachments Simple mounting preparation Easy to machine fixture hole: does not require tight tolerances Easy assembly: 3 or 4 mounting bolts ouble oil connection: threaded port or manifold mount 98_ _063 U series Upper flange pull cylinders are designed for integrated manifold mounting solutions. Hydraulic connections are made through SE or S oil connection or the standard integrated O-ring ports. SE oil connection Integrated O-ring port Enerpac upper flange pull cylinders in a fixture for gun breech production. roduct selection ylinder Stroke Model ylinder Oil capacity number effective area capacity lbs in in 2 in 3 ull ush ull ush ull ush Single acting USS USS ouble acting US US US Note: - all Enerpac to order models with S oil connections. - ull forces for single-acting cylinders reduced to overcome spring force. imensions in inches [ ] Model number 1 1 ø 2 E E1 ø ø H ø Single acting USS USS ouble acting US US US

51 imensions & options U series Installation dimensions in inches ull ixture Mounting Min. Manifold O-ring 1) force hole thread depth R numbers or lbs Ø 3 J UN J2 Inside Ø x thickness M x Manifold O-ring 63 J2.004 ull force: lbs ush force: lbs Stroke: inch ressure: psi 1) O-ring material: polyurethane, 92 urometer -51, U 60 1 W 30 S 120 (3x) H 51, 121 SE # 4 T 1 X E1 E K N V 90 2 R G1/4" 1 W S H V = ull = ush (venting) K N R S T U V W X T X 1 E1 E K U N U 45 2 ø ø lbs 3 J Model number Single acting UN USS UN USS-121 ouble acting UN US-51 ø.16 E ilindros de tracción Verins traction Zugzylinder Options ccessories Swing cylinders 76 ollet-lok push cylinders Sequence valves Important Single-acting cylinders can be vented through the manifold port. The upper flange pull cylinder has a bolt pattern which is identical to its lower flange equivalent, enabling interchangeability. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. Linear cylinders ower sources Valves System M10 x 1, US UN US-121 NOTE: U= bolt circle

52 ull cylinders - Lower flange models Shown: LS-51, LS-121 Minimal mounting height when space is at a premium Guided linear plunger movement lexible design allows for manifold or threaded port connection Low profile mounting style allows body to be below mounting surface Linear cylinders Internal plunger thread allows easy mounting of attachments Easiest mounting preparation in the line Easy to machine fixture hole: does not require tight tolerances Easy assembly: 3 or 4 mounting bolts ouble oil connection: threaded port or manifold mount 99_064 L series The lower flange cylinders are designed for integrated manifold mounting solutions. Hydraulic connections are made through SE or S oil connection or the standard integrated O-ring ports. SE oil connection Integrated O-ring port roduct selection ylinder Stroke Model ylinder Oil capacity number effective area capacity lbs in in 2 in 3 ull ush ull ush ull ush Single acting LSS LSS ouble acting LS LS LS Note: - all Enerpac to order models with S oil connections. - ull forces for single-acting cylinders reduced to overcome spring force. imensions in inches [ ] Model number E E1 H ø ø Single acting LSS LSS ouble acting LS LS LS

53 imensions & options L series U Installation dimensions in inches ull Mounting Minimum Manifold O-ring 1) force thread depth R numbers or lbs J UN J2 inside Ø x thickness M x ) O-ring material: polyurethane, 92 urometer -51, W (3x) 30 H T 1 51, 121 SE # 4 S X E1 E K N V 90 2 R G1/4" W 1 S = ull = ush (venting) H V T X 1 E1 E K U Manifold O-ring K N R S T U V W X Model number ø ø lbs Single acting UN LSS UN LSS-121 ouble acting UN LS-51 M10 x LS UN LS N ø.19 U 45 2 J.004 J2 ull force: lbs ush force: lbs Stroke: inch ressure: psi E ilindros de tracción Verins traction Zugzylinder Options ccessories Swing cylinders 76 ollet-lok push cylinders Sequence valves Important Single-acting cylinders can be vented through the manifold port. The lower flange pull cylinder has a bolt pattern which is identical to its upper flange equivalent, enabling interchangeability. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. Linear cylinders ower sources Valves System

54 ull cylinders - Threaded body models Shown: TS-51 Threaded directly into the fixture can be secured at any height Guided linear plunger movement Threaded port connection Linear cylinders Internal plunger thread allows easy mounting of attachments Simple mounting preparation Easy installation and removal Greatest flexibility in fixture design 99_065 T series The threaded body pull cylinders can be bolted to the fixture. This allows easy installation or removal of the unit and does not require machined fixture holes. The cylinder is adjusted to the appropriate height, and then locked in place using a flange nut ( 78). SE oil connection lange nut Threaded body pull cylinder with modified clamp arm, mounted on a frame-straightening fixture. roduct selection ylinder Stroke Model ylinder Oil capacity number effective area capacity lbs in in 2 in 3 ull ush ull ush ull ush Single acting TSS TSS ouble acting TS TS TS Note: - all Enerpac to order models with S oil connections. - ull forces for single-acting cylinders reduced to overcome spring force. imensions in inches [ ] Model number ø Single acting TSS UNE TSS UN ouble acting TS UNE TS M48 x 1, _026 TS UN

55 imensions & options T series Installation dimensions in inches ull ixture hole force thread size lbs UNE 2475 M48 x 1,5 Oil connection lange nut ull force: lbs ush force: lbs Stroke: inch ressure: psi UN -51, W 25 H T 1 51, 121 SE # 4 E1 E K = ull = ush (venting) N 90 2 ccessory chart Model Mounting lange number flange nut Sold Sold separately separately Single acting TSS-51 M-351 N-351 TSS-121 M-481 N-811 ouble acting TS-51 M-351 N-351 TS-92 M-482 N-482 TS-121 M-481 N ,5 45 G1/4" 1 W H T 1 E1 E K N 3 45 E E1 H K N T W Model number ø ø lbs Single acting UN TSS UN TSS-121 ouble acting UN TS M10 x 1, TS UN TS E ilindros de tracción Verins traction Zugzylinder Options ccessories Swing cylinders 76 ollet-lok swing cylinders Sequence valves Important Single-acting cylinders can be vented through the manifold port. In case there is a risk of machining coolants and debris being inhaled via the breather vent, it is recommended to pipe this port to an area outside the fixture that is protected from machining coolants and debris. Linear cylinders ower sources Valves System

56 Threaded cylinders pplication & selection Linear cylinders 99_100 Shown: ST-9381, ST-571, ST-18251, T-18131, T High clamping forces in a compact body Minimum cylinder diameter combined with maximized clamping forces Threaded body allows fine positioning and easy installation Internal plunger wipers allow maintenance-free, high-cycle performance enter-tapped plungers will hold workpiece contact buttons Single-acting models with spring return simplify hydraulic tubing requirements ouble-acting models are recommended for high-cycle applications Threaded cylinders are designed for workpiece positioning, holding and ejecting applications where space is at a premium. ouble-acting models are also suited to manufacturing applications, such as production punching. 56 ccessory chart ody Mounting lange lunger ontact thread flange nut thread bolt Sold Sold Separately Separately K UN M-121 N-121 #6-32 UN S UN M-201 N-201 #8-32 UN S UN M-251 N UN S UN M-331 N UN S UN M-421 N UN S UN M-481 N UN S UN M-551 N UN M-651 N-651 Threaded cylinder, mounted with horizontal bracket to position the workpiece against the stops. Enerpac swing cylinders are then activated to clamp the work piece before machining operations begin _050 roduct selection ylinder Nominal Model Effective Oil capacity stroke number area capacity at 5000 psi lbs in 2 in 3 push pull in push pull push pull Single acting ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ST ouble acting T T T T T T T T T T T Note: - Seal material: una-n, olyurethane. - Minimum operating pressure for single-acting models (to overcome return spring force) is 580 psi.

57 imensions & options ST, T series ST-271, -2101, Other ST models T models 1 T E K SE #4 1 S E1 E K 1 SE #4 roduct dimensions in inches [ ] T 1 S M Model number Ext. Retr. 1 1 E E1 K L M S T height height ø ø ø ø thread lbs Single acting ST UN #6-32 UN ST UN #6-32 UN ST UN #6-32 UN ST UN #8-32 UN ST UN #8-32 UN ST UN #8-32 UN ST UN #8-32 UN ST UN #8-32 UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ST UN UN ouble acting E1 E K 1 T L orce: lbs Stroke: inch ressure: psi E ilindros roscados Vérins corps filetés Einschraubzylinder Options ccessories T UN UN T UN UN T UN UN T UN UN T UN UN T UN UN T UN UN T UN UN T UN UN T UN UN T UN UN SE #4 78 Linear cylinders ower sources Valves System

58 Threaded cylinders pplication & selection Linear cylinders Shown: WRT-22, Y-15, WMT-39 ine positioning and convenient installation can be fixtured into manual strap or bridge clamp assemblies Maximum clamping force in a compact design Threaded body allows exact positioning and easy installation enter-tapped plungers allow a variety of attachments Single-acting spring return models simplify hydraulic tubing requirements ouble-acting models are ideal for applications requiring powered pulling or fast automated control Removable base allows Y-15 to be threaded into a custom manifold 99_100 Threaded cylinders for workpiece positioning, holding and ejecting applications where space is at a premium. The advance and retract mode of double-acting models allow installation of clamping accessories to the plunger for pull and push action. ylinders can be mounted with horizontal bracket to position the workpiece against the stops. Ideal for supporting or positioning a part Single or ouble acting Single acting The obvious choice when there are few system restrictions, and there are not many units retracting simultaneously ewer valving requirements which results in a less complex circuit ouble acting Used when greater control is required during the unclamp cycle When timing sequences are critical Less sensitive to system back pressures, resulting from long tube lengths or numerous being retracted at the same time roduct selection ylinder Stroke Model Effective Oil Operating capacity number area capacity pressure at maximum pressure lbs in 2 in 3 push pull in push pull push pull psi Single acting WRT WRT ouble acting Y WMT WMT Note: - Seal material Y-15: una-n, olyurethane - Seal material WMT and WRT series: una-n, olyurethane, Teflon.

59 imensions & options Y, WMT, WRT series J H G S E K G 1 T Manifold dimensions in inches H J G S E 1 K G T 1 J1 J2 ylinder capacity lbs 2 UN 3 J1 J2 L M N W Z or using Y-15 without base ccessory chart ody Mounting lange lunger ontact Thread lange Nut Thread olt Sold Sold Separately Separately K UN M-251 N UN S UN M-351 N UN S-81 Model number Single acting ouble acting WRTY WMT roduct dimensions in inches [ ] T J H G dvance H1 G 1 E K W S N 1 Retract Manifold dimensions using Y-15 without base M Surface roughness must be 63 micro-inches Z L N orce: lbs Stroke: inch ressure: psi E ilindros roscados Vérins corps filetés Einschraubzylinder Options ylinder accessories 78 Important pply Loctite 222 or equivalent to threads and torque Y-15 in cavity to in-lbs. avity must be designed to withstand hydraulic forces. 1 1 E G H H1 J K N S T UN UN lbs WRT SE # WRT SE # Y NT WMT NT WMT NT Linear cylinders ower sources Valves System

60 Manifold cylinders pplication & selection Linear cylinders 98056b02 Shown: SM-10131, SM-571, SM These compact, fixture-integrated cylinders are designed for workpiece positioning, holding and ejecting applications where space is at a premium. No exposed tubing. Six SM series manifold cylinders are used to clamp piston blocks for machining. The hydraulic flow to the cylinders is side-ported in order to minimize the required manifold thickness. Threaded cylinders are used here to position engine manifolds for drilling, tapping and mill finish ompact, fixture-integrated positioning and holding esign eliminates the need for fittings and tubing, minimizing space requirements and facilitating easy removal of chips and dirt Minimal cylinder height enables extremely compact fixture designs ylinder body is fully recessed within the fixture allowing the workpiece to be positioned near-flush with the fixture surface, saving space Nitro carburized bodies and internal plunger wipers allow maintenance-free, high cycle performance enter-tapped plungers will hold workpiece contact buttons Standard SE bodies make manifold cavity preparation easy Manifold mount Manifold cylinders are designed to be screwed directly into a manifold or fixture. Enerpac s manifold cylinders feature SE dimensions, enabling the use of standard SE porting tools for easy cavity preparation. n SE O-ring, included with each cylinder, provides an effective seal between the cylinder and manifold. roduct selection ylinder Stroke Model Effective Oil capacity number area capacity at 5000 psi lbs in in 2 in SM SM SM SM SM SM SM SM SM SM SM Note: - Seal material: una-n, olyurethane.

61 imensions & options SM series 1 Installation dimensions in inches [ ] Model 2 H J1 L number thread min. max. min. min. SE ø SM-271 SE#6 (9/16"-18 UN) SM-2131 SE#6 (9/16"-18 UN) SM-571 SE#10 (7/8"-14 UN) SM-5131 SE#10 (7/8"-14 UN) SM-1071 SE#12 (1-1/16"-12 UN) SM SE#12 (1-1/16"-12 UN) SM SE#12 (1-1/16"-12 UN) SM SE#16 (1-5/16"-12 UN) SM SE#16 (1-5/16"-12 UN) SM SE#20 (1-5/8"-12 UN) SM SE#20 (1-5/8"-12 UN) Note: - O-rings included. or additional cavity machining information, refer to SE standards for straight internal thread, O-ring boss, or call Enerpac s Technical Service epartment. J SM-271, -2131other models E K 1 T roduct dimensions in inches [ ] 1 1 J E1 E K 1 T L Installation dimensions orce: lbs Stroke: inch ressure: psi E ilindros para colector Vérins pour bloc foré Einbauzylinder ccessory chart lunger Thread K Options ccessories ontact bolts 78 Important ontact olt 78 #6-32 UN S-21 #8-32 UN S UN S UN S-91 Tighten manifold cylinders according to specifications in the instruction sheet. Return springs in singleacting cylinders should not be used to pull back heavy attachments consistently. Model number Ext. Retr. 1 1 E E1 1 J K T height height thread Ø Ø thread lbs SM UN #6-32 UN SM UN #6-32 UN SM UN #8-32 UN SM UN #8-32 UN SM UN UN SM UN UN SM UN UN SM UN UN SM UN UN SM UN UN SM UN UN H J1 2 Linear cylinders ower sources Valves System

62 lock cylinders pplication & selection Linear cylinders 99_022 Shown: , , S lock cylinders are used for punching, pressing, riveting and bending applications. In general, these cylinders are used for moving, positioning, lifting, opening and closing. The versatile Enerpac block cylinders, fixture mounted for clamping applications. Versatile, all purpose cylinder Six clamping capabilities enable you to choose the right size for your application Variety of strokes, to meet design needs ouble acting and Single acting (spring return), allows selection of cylinder that best conforms to your hydraulic system Oil connection alternatives: cylinders incorporate both manifold mount and plumbed options to meet your fixturing needs ompact cylinder design does not require large amounts of space on your fixture Integral wiper ring, keeps contaminants out of cylinder to extend life Select your block cylinder type: S series, Single acting Internal threaded plunger Manifold O-ring ports lack oxide base Hard chrome-plated plunger S oil port Strong return spring iltered vent plug series, ouble acting Internal threaded plunger Manifold O-ring ports lack oxide base Hard chrome-plated plunger S oil port

63 imensions & options, S series pplication example lock cylinder positions workpiece against fixed point with further clamping coming from an Enerpac swing cylinder. orce: ,850 lbs Stroke: inch ressure: psi E ilindros tipo bloque roduct selection iston Rod lamping Stroke Model ylinder ylinder Minimum Ø Ø force number effective oil spring at 5000 psi area capacity return force lbs in 2 in 3 in in push pull in push pull push pull lbs lbs Single acting S S S , S ouble acting , , ,900 23, ,900 23, * ,850 36, * * This product is made to order. lease contact Enerpac for delivery information before specifying in your design. Vérins cube lockzylinder ccessory chart lunger Thread K M6 X 1,0 M8 X 1,25 M16 X 2,0 M20 X 2,5 M30 X 3,5 M36 X 4,0 Options ontact bolts ittings Valves ressure gauges ressure switches High pressure filters 157 ontact olt 78 S-62 S-82 S-16 S-20 S-30 S-36 Linear cylinders ower sources Valves System

64 lock cylinders pplication & selection Shown: , , S Linear cylinders , , , , ll other models V K V K N N 99_022 99_001, S series These compact block cylinders are easily mounted in horizontal or vertical position for a range of special tooling applications. They can be used for positioning, clamping, pushing, pressing or punching operations. The plunger has an internal thread to accommodate accessories such as contact bolts. lock cylinder used for punching applications. Q H J R G V Z T Y L 1 L O S M Manifold port Manifold port X imensions in inches [ ] W Q R G V J U H Z T Y L 1 L O S M X Model number ø 1 ø G H J K ø L M Single acting S G1/8" M6 x 1, S G1/8" M8 x 1, S G1/8" M16 x 2, S G1/4" M20 x 2, ouble acting G1/8" M6 x 1, G1/8" M6 x 1, G1/8" M8 x 1, G1/8" M8 x 1, G1/8" M16 x 2, G1/8" M16 x 2, G1/4" M20 x 2, G1/4" M20 x 2, G1/4" M30 X 3, * G1/4" M30 x 3, * G1/4" M36 x 4, W

65 imensions & options, S series Installation instructions When operating above 2000 psi in applications as shown in the figure below, provide cylinder back-up using a support to eliminate shear loads on the mounting bolts. orce: ,850 lbs Stroke: inch ressure: psi Manifold mounting When hydraulic connections are made through the standard integrated O-ring ports as shown in figure, the sealing surface must have a roughness of 63 micro-inches. Single-acting cylinders If the risk of machining coolants or debris being entering via the breather vent (port ) exists, it is recommended that this port be connected to a clean, remote termination point. Manifold O-ring Installation dimensions in inches [ ] lamping Oil Mounting Min. Torque Manifold O-ring 1) capacity channel thread thread (bolt diameter length type 12.9 IN 912) Inside Ø x lbs t.lbs thickness R No M x M x M x , M x , M x , M x ) Manifold O-rings include N O Q R S T U V W X Y Z mín. ø ø Model number.004" 0,1mm Single acting S S S S ouble acting E ilindros tipo bloque Vérins cube lockzylinder Important Must include shear back-up with ability to withstand full load. Linear cylinder support is required at operating pressures above 2000 psi. ollow the instructions on this page. Options ontact bolts ittings ressure gauges High pressure filters 157 Linear cylinders ower sources Valves System * * * This product is made to order. lease contact Enerpac for delivery information before specifying in your design

66 ull down clamps pplication & selection Linear cylinders 99_106 Shown: EM-20, EH-202, EM-5, EH Enerpac pull down clamps are designed to allow unobstructed top face machining. Independent horizontal and vertical movement achieves high lateral and pull down forces to hold the workpiece firmly down against the machine table or fixture. The pull down forces are approximately 33% of the clamping force. 100% 33% 100% 33% The pull down clamps can be permanently mounted using the supplied mounting bolts. Optional T-nuts can be used for adapting to varying workpiece sizes. Enerpac hydraulic pull down clamps and their mechanical counter parts used to manufacture tie-rod cylinder end caps _008 Low profile clamp for unobstructed top face machining Independent horizontal and vertical movement for a true pull down effect ompact size and low height allows more flexible and economic mounting than comparable dedicated vise Manifold and S porting Investment high-alloy cast, heat-treated clamping jaw and plunger ontamination resistant design for low maintenance, removable guard for chip removal Oil ports on both sides for mounting flexibility Optional mechanical counter hold provides pull down on end stop for large parts Mounting bolts included for ease of installation ull down clamp operation The moveable jaw (1) and the flexible connection design (2) allows lateral movement and eliminate any bending moment. Roller finished cylinder bore (3) improves seal life. The removable guard (4) prevents the entry of chips and allows easy cleaning. Heat treated, centerless ground plunger (5) for extremely close tolerances and long life. The clamps feature both manifold mount (6) and plumbed oil connection. roduct selection Lateral ull Stroke Model Effective Oil Mounting clamping down number area capacity bolts 1) force force (included) at at 5000 psi 5000 psi lbs lbs in in 2 in 3 mm Hydraulic pull down clamps EH M8 x EH M12 x 80 Holding or pull down Model Mounting Replaceable force down clamp number bolts ribbed jaws model included 1) model number number lbs Mechanical counter holds 1) Torque M8 with 18 t.lbs, M12 with 63 t.lbs. The use of T-nuts requires longer bolts. mm 870 EH-52 EM-5 M8 x 35 EJR EH-202 EM-20 M12 x 65 EJR-20

67 imensions & options EH, EM series ull down force orce: lbs Stroke: inch 33% 0% 33% 33% ressure: psi ixed stop set-up very workable set-up for workpieces that are not larger or wider than twice the width of the edge clamp. The pull down force of the hydraulic actuated edge clamp is sufficient to pull down and hold the product during actual machining. The mounting surface must extend out under the jaw. EH-52, -202EM-5, -20 S G R Q R ± 0.02 ± 0.02 O-ring port O-ring ( ) 0.19 O H1 H V N U W ounter hold set-up roduct dimensions in inches [ ] or workpieces larger than twice the width of the edge clamp used, it is recommended to install a mechanical counter hold. The counter hold also produces a pull down force equal to 1/3 of the lateral force of the hydraulic edge clamp applied. In this way the grip on the workpiece is very tight. nother advantage of this set-up is the repeated accuracy of machining results. R Q R T O ± 0.02 N W E Garras de empuje oblicuo rampons plaqueurs Niederzugspanner Options ittings Threaded cylinders ositive clamping cylinders Important Threaded push cylinders (ST, T, SM series) or spring loaded cylinders (MRS-series) can be used to hold the workpiece against the side locators during part clamping. o not allow the clamping jaw to extend below the lower surface of the clamp body. Model number G H H1 N O Q R S T U V W mm lbs Hydraulic pull down clamps EH G1/8" M5 x 0, EH G1/4" M8 x 1, Mechanical counter holds EM EM Linear cylinders ower sources Valves System

68 Hollow plunger cylinders pplication & selection Linear cylinders 99_043 Shown: HS-20, RWH-121, RWH These cylinders are regularly used for upgrading mechanical clamping to faster and easier hydraulic clamping. Other typical applications include production pressing, punching and crimping operations. Mechanical set-up Hydraulic set-up Traditional mechanical elements in a clamping fixture are replaced by a hollow plunger hydraulic cylinder. Two Enerpac RWH-121 hollow cylinders mounted at the back side of a fixture _016 or high force push and pull applications on and around the fixture Load can be attached to either end of the cylinder, providing a choice of push or pull actions - both realizing full cylinder capacity Very high cylinder capacities contained within small dimensions allow compact fixture designs Spring return operation allows for easy unloading of the workpiece Threaded collars and base mounting holes allow mounting flexibility, including table-top surfaces and T-slots Nickel-plated plungers, plunger wipers and internal venting prevent corrosion and support longer operation life on all HS models The Y series hollow plunger cylinders can be manifold mounted (except for Y ) roduct selection ylinder Stroke enter Model Effective Oil Operating capacity 1) hole number area capacity pressure diameter lbs in in in 2 in 3 psi Y RWH RWH HS-20* Y Y , HS-50* , Y , QH , RWH , RWH , HS-80* , RWH , RWH , HS-110* , RWH , RWH , RWH ) t maximum operating pressure. Note: Seal material una-n, olyurethane, Teflon. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design.

69 imensions & options Y, HS, QH, RWH series Optional Heat Treated Hollow Saddles Saddle ylinder Saddle Saddle imensions type model number model No. Threaded RWH-200, 202 H " hollow RWH-300, 301, 302 H /4" Smooth hollow saddles are standard on all RWH 20 and 30 ton models (12 ton models are not equipped with saddles). RWH-20, 120, 121, QH-20 other RWH modely modelshs models J H V T K 1 3/8"-18NT Y U W Z V H G1 T K 1/8"-27NT 1 U Y W Z roduct dimensions in inches [ ] Model number 1) or these models G1 = manifold and NT U T J Z Y K 1 V H V W H 5 T RWH-20 1/8"-27NT RWH-120 1/4"-18NT RWH-121 1/4"-18NT QH-120 1/4"-18NT K 1 G1/4" Y U S W Z orce: ,000 lbs Stroke: inch ressure: psi E ilindros de émbolo hueco Vérins a piston creux Hohlkolbenzylinder Options lange nuts 78 Important Use Grade 8 (IN12.9) bolt quality or better for pulling. Use Grade 7 (IN10.9) threaded rod quality or better for pulling applications. RWH cylinders can be used up to 10,000 psi maximum working pressure (except RWH-20). 1 H J K S T U V W Y Z ø ø ø ø ø ø ø Y UN UN RWH UN UN UN RWH-20U UN UN UN HS-20* M58 x 1, M10 x 1, M6 x 1, Y ) UN UN Y ) UN UN HS-50* M65 x 1, M12 x 1, M8 x 1, Y ) UN UN QH UN UN UN RWH UN UN UN RWH UN UN UN HS-80* M75 x 1, M16 x 2, M8 x 1, RWH UN UN UN RWH UN UN UN HS-110* M90 x 2, M20 x 2, M10 x 1, RWH UN UN UN RWH UN UN UN RWH UN UN UN lbs Linear cylinders ower sources Valves System

70 ositive clamping cylinder pplication & selection Shown: MRS-1, MRS-1001, MRS-5001 Ideal for palletized applications Heavy disk springs maintain the clamping force - hydraulic pressure is used for release Single-acting design allows easy setup of hydraulic system Linear cylinders Hollow plunger design allows easy retrofit for mechanical clamping ustom buttons can be fitted into the plunger for clamping directly against a workpiece Threaded body allows easy cylinders mounting directly into fixture plate 98_062 These cylinders are designed for prolonged clamping applications in moveable machine parts, tools, fixtures, pallets and workpieces. The mechanical clamping force of this cylinder is ideal for MS applications. Hydraulic pressure is used to release the workpiece and is not required to maintain the clamping force on the workpiece. Internal high strength springs produce the required clamping force. When pressure is released, the Enerpac MRS cylinders clamp the workpiece by pushing it against the frame that is attached to the fixture. Internal threaded plunger allows accessories to be used easily for retrofit applications ositive clamping operation The applied clamping force is determined by how far the cylinder's plunger is being retracted when engaging contact with the workpiece (referred to as the effective clamping stroke). Use the diagrams on the next page as a guide to your fixture set-up. Note that in order to load and unload the workpiece, the plunger must be retracted somewhat further than the effective clamping stroke. Hydraulic pressure applied lunger retracts Work piece is released New work piece is loaded roduct selection Hydraulic pressure released Springs apply force Workpiece is clamped Machining can take place ylinder Effective Model Required Max. Oil capacity clamping number operating tensioning capacity at stroke pressure 1) stroke 5000 psi lbs in psi in in MRS MRS , MRS MRS MRS MRS _ MRS ) Minimum operating pressure to fully retract the plunger. Note: Seal material una-n, olyurethane.

71 imensions & options MRS series Stroke/force diagrams for MRS-1001, -2001, -3001, orce: ,500 lbs ressure (psi) Ë ressure (psi) Ë MRS-1, 2, 5 other MRS models T MRS-1001 K K E Y 1 1/4"-18 NT J W H lamping stroke (in) Ë Extended Retracted MRS lamping stroke (in) Ë Extended Retracted = SUGGESTE LMING RNGE roduct dimensions in inches [ ] lamping force (lbs) Ë lamping force (lbs) Ë ressure (psi) Ë ressure (psi) Ë T MRS-2001 K K E Y 1 G1/8" J W Stroke: inch ressure: psi E ilindros de amarre Vérins de bridage positif ederspannzylinder Options uttons lange nuts ollet-lok work supports 38 Important e sure to refer to the force/ stroke chart when selecting cylinders for an application. iece parts with a large variation at the clamping point may be prone to having variations in clamping force. epending on the cycle usage of the application and amount of deflection, the internal disk springs may need to be replaced at scheduled intervals. Model 1 E H J K T W Y number lbs MRS M36 x 1, M8 x 1, MRS M48 x 1, M10 x 1, MRS M60 x 2, M16 x 2, MRS M65 x 1, M12 x 1, MRS M80 x 2, M 16 x 2, MRS M95 x 2, M20 x 2, MRS M95 x 2, M20 x 2, lamping stroke (in) Ë Extended Retracted MRS lamping stroke (in) Ë Extended Retracted lamping force (lbs) Ë lamping force (lbs) Ë Linear cylinders ower sources Valves System

72 ush cylinders - ollet-lok design Linear cylinders Shown: WT-110, W-210 Ideal when live hydraulics are not available clamping is sustained mechanically so live hydraulics are not required during the machining cycle ouble-acting ollet-lok action allows fully automated operation dditional level of safety since live hydraulics are not required ollet-lok push cylinders can either be mounted by the flange, or threaded into the fixture The ollet-lok design is an industry exclusive apacities up to 8800 lbs. available on request 99_066 99_048 W series ollet-lok positive locking push cylinders are designed to mechanically hold the workpiece after hydraulic pressure is removed. ush capacities range from 2500 lbs. to 5000 lbs. ollet Wedge SE oil connections Hydraulic pressure pushes the collet up a wedge, locking the plunger in the clamping position. Lower flange ollet-lok push cylinder used for positioning a motorcycle frame. ollet-lok sequence Step 1 ressurize port #1. lunger extends and clamps workpiece. roduct selection Step 2 Keep port #1 pressurized. ressurize port #2. lunger will be locked in clamped position. Max. Hydr. Lower Threaded Operating Hydraulic Oil Max. push plunger flange body pressure effective capacity oil force stroke area flow psi in 2 in 3 lbs in min. max. adv. adv. unlock retr. in 3 /min Model number Maximum cycle rate: 8 cycles/min. Note: all Enerpac to order models with metric thread and S port connections. apacities up to 8800 lbs. available on request. imensions in inches [ ] Step 3 epressurize port #1 and #2. ylinder should now be uncoupled from hydraulic power source and will maintain the clamped position. Step 4 ressurize port #3. lunger will be unlocked and the plunger will be released to its original position W-110 WT W-210 WT Model E E1 number Ø Ø Ø Ø Ø Lower flange W W Threaded body WT UN UN WT UN UN

73 imensions & options W series Installation dimensions in inches ush force: lbs ush ixture Mounting Minimum force hole thread depth lbs ø3 J J2 Lower flange M M8.72 Threaded body Elastic deflection (inch) UN UN W 60 (6x) Elastic deflection vs load S ,000 pplied load (lbs) E1 E K L SE #4 V H1 W-210 W U 1 eflection chart: WT S ø 3 Elastic deformation of the plunger resulting from the application of load. Oil port functions 1 lamp 2 Lock 3 Unlock/Retract H1 H2 H3 K L S U V W Ø Elastic deformation Ø 1 W E1 E K J 1 2 J2 L H2 H3 H1 lbs SE #2 ø 2 lange nut Model number Lower flange UN W UN W-210 Threaded body UN WT UN WT Stroke:.59 inch ressure: psi E ilindros de empuje Vérins pousseurs Gesicherter ruckzylinder ustom Options vailable Intermediate capacities Options Sequence valves ccessories 60 uto couplers Swing cylinders Manifold mounting Important ifferent flange locations 60 or proper application, clamp force, pressures and timing, consult Enerpac for support. Linear cylinders ower sources Valves System

74 Universal cylinders - Single acting pplication & selection Linear cylinders 99_108 Shown: RW-50, RW-104 Used when high cylinder forces or long strokes are required in a confined area. an handle a wide range of production tooling applications. Enerpac RW-101 cylinders used in a high pressure toggle style clamping set-up _051 Heavy-duty cylinders handle a variety of applications High pressure design when additional force is required Long stroke lengths in a compact design, well suited for welding applications ollar mounting threads and base mounting holes allow flexible mounting options ylinders are provided with hardened saddles for additional plunger protection Snap-in saddles are easily removed for adapting to different plunger devices hrome plated plunger with bronze upper and lower bearing provides a long cylinder life lock and cylindrical models ylindrical models Long stroke lexible in fixture design Variety of attachments lock models Easily mounted ompact design roduct selection ylinder Stroke Model Effective Oil Operating capacity number area capacity pressure at 5000 psi lbs in in 2 in 3 psi lock models RW RW ,000 ylindrical models RW , RW , RW ,000 11, RW ,000 11, RW ,000 11, RW ,000 11, RW ,000 Note: Seal material: una-n, olyurethane, Teflon.

75 imensions & options RW series E E orce: ,180 lbs Stroke: inch RE RE Type Model levis eye dimensions (in) in to pin* number E in. ase 1) U U G G Model number V V lock models ylindrical models RE RE lunger RE RE * in to in RE and RE levises fitted. dd cylinder stroke length. 1) Mounting screws are included. RW-51, -106 RW RW L roduct dimensions in inches [ ].31 1 H H H T T L G V U1 K 1 J G U K RW-101 only U1 =.75 inch Z 3/8"-18NT ressure: psi E ilindros universales Vérins universels Universelle Linearzylinder Options ylinder accessories 78 Important These cylinders are intended for medium cycle applications. The return spring is intended for retracting the plunger and heavy devices should not be attached to it. lungers should be shielded in welding applications to prevent splatter from sticking to chrome plating. o not use these cylinders continuously at full stroke or damage to return spring may result. 1 G H J K L T U V Z RW RW RW UN UN UN RW UN UN UN RW UN UN UN RW UN #10-24 UN UN RW UN UN UN RW UN UN UN RW UN UN UN lbs Linear cylinders ower sources Valves System

76 Universal cylinders - ouble acting pplication & selection Shown: R-2510, R-96, R-256, R-41, R-166 Heavy-duty cylinders provide push as well as pull forces High pressure design when additional force is required for push or pull applications Long strokes in a compact design are well suited for custom toggle style clamping Linear cylinders Various features for mounting Threaded plunger allows a wide range of mounting adapter devices hrome plated plunger provides a long cylinder life 99_142 Used when high cylinder forces with a powered return stroke is required in a confined area. ylinders can push or pull a workpiece into position and the threaded plunger allows adapting standard clevis attachments. lamping application using Enerpac R cylinders (with clevis eye attachments on both ends) for their high pressure capability and mounting flexibility. 99_049 Optional cylinder attachments or added cylinder flexibility, a selection of interchangeable mountings is available to fit plunger or cylinder threads. roduct selection oot mounting Mounts onto cylinder collar thread. Retainer nut included. lange mounting Mounts onto cylinder collar thread. Retainer nut included. Retainer nut Locking foot or flange mountings. Mounts onto cylinder base or collar threads. Included with foot and flange mountings. levis eye Threads onto plunger or base. ylinder Stroke Model Effective Oil capacity number area capacity at 5000 psi lbs in 2 in 3 push pull in push pull push pull R R R R R R R , R , R ,500 10, R ,500 10, R

77 imensions & options R, series oot mountinglange mountingretainer nutlevis eye E H E V E V E V orce: ,500 lbs Stroke: inch V R 1 N Z1 2 ylinder attachments in inches [ ] 3/8-18NT 2 ylinder capacity at 2 Model E H V 5000 psi 10,000 psi number lbs lbs ø lbs oot mounting with retainer nut , ,500 31, ,500 49, lange mounting with retainer nut , ,500 31, ,500 49, Retainer nut UN , UN ,500 31, UN ,500 49, UN levis eye UN UN , UN UN ,500 31, UN UN ,500 49, UN UN Z 1 E K E1 W H roduct dimensions in inches [ ] Model number H N W 2 H T 2 ressure: ,000 psi E ilindros universales Vérins universels Universelle Linearzylinder Options ylinder accessories 78 Important e certain that the mounting devices can handle forces in the push and pull direction. R series cylinders are designed for a maximum operating pressure of 10,000 psi. When applying 10,000 psi cylinder capacities double as well. 1 E E1 H K N T W Z Z1 UN UN UN lbs R R R R R R R R R R R Linear cylinders ower sources Valves System

78 ylinder accessories Linear cylinders Shown: ylinder accessories or optimum mounting and fixture flexibility to match specific applications ontact bolts llow cylinders to act as a datum point in your clamping applications, and protect the piston when cylinders are used for pushing applications ylindrical flange nuts or mounting threaded body cylinders in any position Mounting brackets or bolting cylinders to suit the application 99_067 These accessories are provided so that you can effectively position, mount and actuate Enerpac hydraulic cylinders according to your specific fixturing or production applications. Enerpac worksupport locked in position using an N series self-locking flange nut. 98_053 S-21, -41, -42, -61, -62, -82 other S models all others N-121, 201, 251 E E Model E number thread Spherical contact bolts roduct dimensions in inches [ ] #6-32 UN S #8-32 UN S M4 x 0,7 S UN S M6 x 1,0 S UN S M8 x 1,25 S UN S UN S M10 x 1,5 S M16 x 2,0 S M20 x 2,5 S roduct dimensions in inches [ ] Model E H J number thread ø Yoke UN Y Model number thread Jam nuts UN N M12 x 1,5 N UN N M20 x 1,5 N UN N UN N M28 x 1,5 N UN N M30 x 1,5 N UN N UN N M35 x 1,5 N UN N M42 x 1,5 N UN N M48 x 1,5 N UN N M55 x 1,5 N UN N M65 x 1,5 N UN N M80 x 2,0 N J E H

79 imensions ylinder accessories M and W-51 models other W models E ccesorios de cilindro ccessoires pour vérins Zubehör für Zylinder E E L K roduct dimensions in inches [ ] Model number E thread ø Mounting flanges Rectangular UN W UN W UN W UN W UN W x x UN M M12 x 1,5 M UN M M20 x 1,5 M UN M UN M M28 x 1,5 M UN M UN M M35 x 1,5 M UN M M42 x 1,5 M UN M M48 x 1,5 M UN M M55 x 1,5 M UN M M65 x 1,5 M UN M M80 x 2,0 M W-53, -121W-102 roduct dimensions in inches [ ] E E Model E K L number thread thread Mounting flanges ylindrical UN W UN UN W UN Mounting flanges Rectangular UN W UN L Linear cylinders ower sources Valves System

80 5000 psi Tie Rod ylinders pplication & selection Linear cylinders Shown: TRM-1506, TRL-3210 and TRM-3206 erformance tested design features at 5000 psi Rod seal (1) uses spring loaded multiple lip vee rings, a supporting bronze bearing ring bushing and a double lip wiper iston seal (2) combines two bi-directional sealing cast iron piston rings with two block vee seals with back-up rings Hardened chrome plated piston rod (3) resists scoring and corrosion, assuring maximum life Steel tubing barrel (4), honed to a fine finish assures superior sealing, minimum friction and maximum seal life Rod bushing and seals can be serviced by merely removing the retainer plate (5) on most models Enerpac 5000 psi Tie Rod cylinders provide a variety of mounting options for pushing and positioning workpieces and fixtures on a machine. Enerpac tie rod cylinders are designed to the highest industry standards to provide long life and worry-free performance in the most demanding applications. 80 Standard bore sizes ore Rod apacity at 5000 psi Effective area diameter diameter ush ull ush ull in in lbs lbs in 2 in ,850 4, ,700 8, ,550 12, ,500 25, ,850 38, dditional bore sizes ore Rod apacity at 5000 psi diameter diameter ush ull in in lbs lbs ,170 50, ,400 78, ,400 94, , ,600 ontact Enerpac for ordering information on addional bore sizes Tie Rod cylinder construction 1 Rod Seal 2 iston Seal 3 iston Rod 1 4 arrel 5 Retainer late Tie Rod cylinder mounting styles levis Mount TRM Series N style M1 llows cylinder to pivot Requires provision for pivoting on rod end oot mount TRM series N style MS2 llows easy mounting with only four bolts ackup key included in design to ensure long life lange mount TRL series N style ME5 llows cylinder length to be buried in machine Strongest, most rigid mount

81 TR-series roduct selection apacity: ,850 lbs. iston Rod Stroke levis oot lange diameter diameter mount mount mount Stroke: 2-12 in. in in in ressure: psi TRM-1502 TRM-1502 TRL TRM-1504 TRM-1504 TRL TRM-1506 TRM-1506 TRL TRM-1510* TRM-1510 TRL TRM-1512* TRM-1512 TRL TRM-2002 TRM-2002 TRL TRM-2004 TRM-2004 TRL TRM-2006 TRM-2006 TRL TRM-2010 TRM-2010 TRL TRM-2012 TRM-2012 TRL TRM-2502 TRM-2502 TRL TRM-2504 TRM-2504 TRL TRM-2506 TRM-2506 TRL TRM-2510 TRM-2510 TRL TRM-2512 TRM-2512 TRL TRM-3202 TRM-3202 TRL TRM-3204 TRM-3204 TRL TRM-3206 TRM-3206 TRL TRM-3210 TRM-3210 TRL TRM-3212 TRM-3212 TRL TRM-4002 TRM-4002 TRL TRM-4004 TRM-4004 TRL TRM-4006 TRM-4006 TRL TRM-4010 TRM-4010 TRL TRM-4012 TRM-4012 TRL-4012 ushions are available for all cylinder models. ushions slow down heavy loads prior to end of stroke, preventing damage to the cylinder or the machine. To add cushions to your Enerpac Tie Rod cylinder, simply add the letter to the end of any model number. Note: The addition of cushions does not affect the outside dimensions of the cylinder. * These models are only rated to 4000 psi due to constraints on the mechanical properties of the rod. ustom build your Tie Rod cylinder TR M roduct Type TR = Tie Rod 2 Mounting M = levis Mount M = oot Mount L = lange Mount Seal and repair kits 3 ore iameter 15 = 1.5" 20 = 2.0" 25 = 2.5" 32 = 3.25" 40 = 4.0" Seal kits include piston, rod and barrel seals. Repair kits include seal kit plus rod bushing and rear bearing ring. 4 Stroke 02 = 2" 04 = 4" 06 = 6" 10 = 10" 12 = 12" 5 ushions lank = None = ushions both ends roduct dimensions in inches ore Rod Seal kit Repair kit diameter diameter in in TR15SK TR15RK TR20SK TR20RK TR25SK TR25RK TR32SK TR32RK TR40SK TR40RK E ilindros tirantados Vérins à tirants Zugankerzylinder Options ccessories ZW Series umps V Series Valves ittings Important onsult individual product selection pages for application and installation criteria specific to each mounting style. If you are unsure of an application, contact Enerpac directly. Enerpac can provide many other tie rod cylinders in a wide variety of mounting styles, bore and stroke sizes. ontact Enerpac directly and talk to our ustom roducts group for a quotation. Linear cylinders ower sources Valves System

82 5000 psi Tie Rod cylinders TRM-series Linear cylinders Shown: TRM-3204 lexibility of motion levis mount cylinders include pivot pin for mounting in your machine Standard rod eyes and rod clevises available for each bore size. N style M1 esigned to carry shear loads ivot pins should be carried by rigidly held bearings and closely fit for the entire length of the pin apacity: ,850 lbs. Stroke: 2-12 in. ressure: psi E ilindros tirantados Vérins à tirants Zugankerzylinder Options ccessories TR series clevis mount Enerpac clevis mount 5000 psi Tie Rod cylinders provide for motion in two axis, increasing the range of motion on your machine with only one cylinder. Either internal or external threads available ustom designs to match your tooling requirements 82 Special rod ends MM imensions in inches [ ] ore Rod Model diameter diameter number TRM models 2008 W K Y V levis mount E ivot pin included W E Z + Stroke + Stroke L + Stroke EE W LR G J L M X + Stroke *** or product weights, please reference the price list or contact Enerpac customer service for more information MR ZW Series umps V Series Valves ittings KK W * E EE G J K TRM-15xx** SE # TRM-20xx SE # TRM-25xx SE # TRM-32xx SE # TRM-40xx SE # * = istance across plunger wrench flats. ** 10 and 12 inch models are rated at only 4000 psi. ore Rod Model KK2 L L LR M MM MR N V W X Y Z diameter diameter number lbs TRM-15xx 3/4" *** TRM-20xx 1" *** TRM-25xx 1-1/4" *** TRM-32xx 1-1/2" *** TRM-40xx 1-7/8" *** N V MM

83 5000 psi Tie Rod cylinders TRM-series E apacity: ,850 lbs. ST Stroke: 2-12 in. ressure: psi E ilindros tirantados Vérins à tirants Zugankerzylinder Options ccessories ZW Series umps V Series Valves ittings E TS US E SW SW Ease of installation oot mount cylinders provide simplest mounting option with just four bolt holes required Standard key mount is included ensuring proper mounting and adding rigidity N style MS2 ompact mounting fits in tight spaces where other cylinders cannot MM imensions in inches [ ] ore Rod Model diameter diameter number ore Rod Model diameter diameter number S 4 holes TRM models W Y SW oot Mount XS V KK2 G SU N V Z + Stroke + Stroke L + Stroke EE SS + Stroke *** or product weights, please reference the price list or contact Enerpac customer service for more information. MM SU J K SW Shown: TRM-1506 TR series foot mount Enerpac foot mount 5000 psi Tie Rod cylinders provide a high quality positioning solution using a minimal amount of space. Important Some custom options may require reduction of working pressure or special installation considerations. ontact Enerpac Technical Service to discuss your application. Special rod ends ouble rod ends vailable on all models except clevis mounts The two rod ends can be different on the same cylinder * E EE G J K KK2 L MM TRM-15xx SE # / TRM-20xx SE # TRM-25xx SE # / TRM-32xx SE # / TRM-40xx SE # / * = istance across plunger wrench flats. N S SS ST SU SW TS US V W XS Y Z lbs TRM-15xx *** TRM-20xx *** TRM-25xx *** TRM-32xx *** TRM-40xx *** Linear cylinders ower sources Valves System

84 5000 psi Tie Rod cylinders TRL-series Linear cylinders Shown: TRL-3206 Extra strong lange mount is part of the cylinder end cap, providing maximum strength and rigidity llows length of cylinder to be mounted inside the machine N style ME5 Simple four bolt mounting pattern makes installation easy Mounting is best suited for tension applications apacity: ,850 lbs. Stroke: 2-12 in. ressure: psi E ilindros tirantados Vérins à tirants Zugankerzylinder Options ccessories 84 TR series flange mount Enerpac flange mount 5000 psi Tie Rod cylinders provide the most rigid mounting ensuring long life and high accuracy on your machine. Special rod ends Rod boots Rod boots are made from neoprene coated fabric Impervious to oil grease and water Rated for temperatures from 0 to 200 Metallic wipers Recommended in applications where contaminants tend to cling to the rod surface vailable on all rod diameters imensions in inches [ ] ore Rod Model diameter diameter number TRL models KK U E T lange Mount N V MM R E 4 Holes R MM W W Y ZW Series umps V Series Valves ittings V G Z + Stroke + Stroke L + Stroke EE * E EE G J K KK TRL-15xx SE # /4" TRL-20xx SE # " TRL-25xx SE # /4" TRL-32xx SE # /2" TRL-40xx SE # /8"-12 * = istance across plunger wrench flats. ore Rod Model L MM N R R T U V W W Y Z diameter diameter number lbs TRL-15xx *** TRL-20xx *** TRL-25xx *** TRL-32xx *** TRL-40xx *** *** or product weights, please reference the price list or contact Enerpac customer service for more information. J K

85 imensions 5000 psi Tie-Rod accessories or high production applications it any style of Enerpac tie-rod cylinder Rod eyes and rod clevises Required for proper mounting of TRM series cylinders ivot pins supplied separately ivot pins for rod eyes and clevises rovided with cotter pins Must be ordered separately Linear alignment coupler revents binding caused by misalignment Reduces rod seal and bearing wear R ittings dimensions in inches [ ] rom To Model number W E G W KK Thread SE #10 3/8" NT Z SE #10 3/8" NT SE #12 3/8" NT Z SE #12 3/8" NT SE #10 SE #6 Z SE #10 SE #6 SE #12 SE #6 Z SE #12 SE #6 Rod levis and Rod Eye dimensions in inches [ ] E Linear lignment oupler in inches [ ] ER KK Thread H Enerpac 5000 psi Tie-Rod cylinder accessories allow you to complete your design making installation on your machine a simple project. Rod clevis Rod eye Maximum KK E R W ER levis model model tension load in number number lbs TRR-15 TRRE-15 12,372 3/4" TR-15 TRR-20 TRRE-20 20,433 1" TR-20 TRR-25 TRRE-25 30, /4" TR-25 TRR-32 TRRE-32 49, /2" TR-32 TRR-40 TRRE-40 70, /8" TR-40 * Operating pressures above 5000 psi require high-pressure fittings or intensifier models with S ports. ontact Enerpac for details. Thread Thread E eep Model Maximum E G H number tension load lbs TR /4" TR-20 16,000 1" TR-25 19, /4" TR-32 33, /2" TR-40 60, /8" Shown: RRE-15, TR-15, TR-15, TR-15 Linear cylinders ower sources Valves System

86 ower sources ower sources Whether you need to run your parts once a day or 24 hours a day, Enerpac has the power source to help you get the job done. ower sources range from simple manual pumps to air operated, to fully customizable electric motor driven units. With a wide variety of accessories to choose from, Enerpac power units are easily the most versatile and reliable in the industry. Technical support Refer to the Yellow ages of this catalog for: Safety instructions asic hydraulic information dvanced hydraulic technology MS (lexible Machining Systems) technology onversion charts and hydraulic symbols

87 series page Turbo II air-hydraulic pumps ir-hydraulic pumps 92 hoosing a pump 93 Electric pumps ZW Return line filter kit and heat exchanger kits Z, ZHE 97 Level/temp switch and pressure transducer Valve manifold allet de-coupling pumps ontinuous connection pumps Single station O3 pumps Electric pump ordering matrix Enerpac system solutions Economy electric pumps Electric submerged pumps and ordering matrix Hand pumps ir-hydraulic boosters ctivator wand & boosters ressure intensifiers ZLS ZT, ZS ZW ZW ZW ZW ZW ZW WU WE, S H,, R I

88 Turbo II air-hydraulic pumps pplication & selection Linear cylinders ower Sources 01022G Shown: MG-5402N, G-3102N, TG-3102N, TG-5105N Turbo II air hydraulic pumps generate the hydraulic pressure you need using the air pressure you have available. The ir Saver iston reduces air consumption and operating costs. They are ideal for providing the power and speed desired in simple clamping circuits. Turbo II airhydraulic pumps are best suited to medium and lower cycle applications. t only 75 d, the Turbo II series help to keep noise level to a minimum. WV-5 SURS-51 WL-111 MG-3402N Quick and powerful hydraulic supply in an economical air-powered unit On-demand stall-restart operation maintains system pressure, providing clamping security External adjustable pressure relief valve (behind sight glass) Internal pressure relief valve provides overload protection Reduced noise level to 75 d Operating air pressure: psi enables pump to start at low air pressure Reinforced heavy-duty lightweight reservoir for applications in tough environments ive valve mounting options provide flexibility in setup and operation ully serviceable air motor assembly Select the required output 3000 series Hydraulic to air ratio: 45: series Hydraulic to air ratio: 60:1 ** NOTE: rom psi air inlet pressure. erformance is significantly diminished below 50 psi. erformance may vary compared to listed values due to seal friction, internal pressure drops and manufacturing tolerances. e sure to allow some flexibility on air inlet pressure. Output oil flow 3000 series low vs hydraulic pressure psi psi psi ir pressure Hydraulic pressure (psi) Oil flow (in 3 /min) Oil flow (in 3 /min) 5000 series low vs hydraulic pressure psi 80 psi 60 psi ir pressure Hydraulic pressure (psi)

89 pplication & selection Turbo II air-hydraulic pumps Select the required output: Oil low: 180 in 3 /min TG series ressure: psi Sound level: 75 d Momentary air inlet treadle for operation of single-acting cylinders rovides advance, hold and retract functions ir: 12 scfm Reservoir: in 3 E ombas hidroneumáticas ompes hydro-pneumatiques Lufthydraulische pumpen G series Momentary or continuous air inlet treadle remote valve is required for operation of cylinders SG series Momentary or continuous air inlet treadle Suitable for mounting any single- or double-acting valve with a O3 mounting configuration vailable with multiple valve manifold MG series Momentary or continuous air inlet treadle Manual 4-way, 3-position, tandem center valve for single- or double-acting operation RG series Includes 15 ft. air pendant for remote control of single-acting cylinders rovides advance, hold and retract functions Options Gauges and accessories 154 Regulatorfilter-lubricator 142 Important or high cycle applications electric pumps are recommended. ower sources Valves System

90 series imensions & options 2-Liter reservoir TG series /8"-18 NT 2 3/8"-18 NT 4 1/4"-18 NT Linear cylinders G series /8"-18NT 1 2 SE # /4"-18NT 3 4 1/4"-18NT ower Sources 90 roduct selection SG series MG series RG series ll dimensions in inches uxiliary vent/tank fill port Hydraulic output Gauge mounting port Swivel air input with filter SE #4" G series include pressure gauge G-2517L. # /8"-18 NT 1 SE # /4"-18 NT /8"-18 NT 2 3/8"-18 NT 4 1/4"NT /8-18" NT 2 3/8-18" NT 4 1/4-18" NT 7 1/4-18" NT iltered permanent tank vent djustable pressure relief valve ir pendant air input escription Model numbers Model numbers Usable oil ir ir 3000 series 5000 series capacity 2) pressure consumption horizontal vertical range mount mount 180 in 3 min 1) 120 in 3 min 1) in 3 psi scfm lbs actory supplied valves Hand/foot 3-way TG-3102N TG-5102N Hand 4-way MG-3402N MG-5402N Remote 3-way pendant RG3102N RG-5102N User supplied valves Remote mount G-3002S G-5002S ump mount, single O3 Valve SG-3002S SG-5002S ) t 0 psi hydraulic and 100 psi air pressure. 2) Turbo air-hydraulic pumps are also available with 305 in 3 reservoir. To order replace 2 in model number with

91 imensions & options series 2-Gallon reservoir Oil low: 180 in 3 /min ll models G series ressure: psi Sound level: 75 d ir: 12 scfm Reservoir: in 3 E ombas hidroneumáticas ompes hydro-pneumatiques Lufthydraulische pumpen G with M2 or M G with WM RG series (M 4) (M 2) 4.18 roduct selection 1) t 0 psi hydraulic and 100 psi air pressure. Options Gauges and accessories 154 Regulator-filterlubricator escription Model numbers Model numbers Usable oil ir ir 3000 series 5000 series capacity pressure consumption range actory supplied valves in 3 min 1) 120 in 3 min 1) in 3 psi scfm lbs Hand/foot 3-way TG-31S8N TG-51S8N Hand 4-way MG-34S8N MG-54S8N Remote 3-way pendant RG-31S8N RG-51S8N User supplied valves 180 (15 ft) MG series SG series TG series Shown: G30S8S-WM10 Remote mount G-30S8S G-50S8S ump mount, Single O3 Valve SG-30S8S SG-50S8S ump mount, Two O3 Valves G-30S8S-M2 G-50S8S-M ump mount, our O3 Valves G-30S8S-M4 G-50S8S-M ump mount, (1-8) V Valves G-30S8S-WM10 G-50S8S-WM ower sources Valves System

92 ir hydraulic power pumps series Linear cylinders Shown: -135, -136 ortable air hydraulic power atented air saver design - minimal air usage for lower cost operation Quiet internal air muffler 80 da 360 swivel oil and air fittings for easier system setup External adjustable relief valve uilt-in 3-way, 2-position valve provides advance-retract cycle operation for single-acting cylinders Max. flow: in 3 /min ressure: psi ir: 12 scfm Reservoir: 36.6 in 3 E ombas hidroneumáticas ompes hydro-pneumatiques Lufthydraulische pumpen ower Sources 99_081 series ompact, lightweight, air driven power source. Treadle start on pump activates pump operation. est choice for single-acting cylinders. These series air hydraulic pumps operate in all positions. Here, a -135 is mounted vertically to a clamping fixture. 92 Oil flow (in 3 /min) Oil flow (in 3 /min) -135 low vs hydraulic pressure low vs hydraulic pressure psi 80 psi 60 psi ir pressure Hydraulic pressure (psi) 100 psi 80 psi 60 psi ir pressure Hydraulic pressure (psi) roduct selection ) t 0 psi hydraulic pressure. Note: Seal material: una-n, Teflon, olyurethane /4"-18NT ir inlet External adjustable relief valve Options Regulatorfilter-lubricator ittings Hydraulic Outlet 3/8"-18NT ø.32 (4x) 1/2"-20UN iller plug Usable Max. Max. Model Valve ir ir oil oil hydraulic number function pressure consumption capacity flow 1) pressure range in 3 in 3 /min psi psi scfm lbs dvance/retract dvance/retract ø 2.83

93 hoosing a pump Select your pump type ressure: ,000 psi ir operated pump low rate: in 3 /min est choice for large circuits with intermittent or medium duty applications. ir operated pumps have lower flow rates than electric pumps, but are more economical. Reservoir: Up to 10 gal Electric operated pump est choice for large circuits with medium or high-duty applications. Electric operated pumps have the highest flow rates available and can be configured with many different accessories. ir hydraulic booster est choice for small circuits with intermittent or medium-duty applications. ir hydraulic boosters provide a single shot of oil to your circuit at high pressure. Oil to oil intensifier est choice for small circuits with medium- or high-duty applications. Oil to oil intensifiers use machine tool hydraulic pressure and boost it to higher clamping pressure directly on the fixture. Select your pump options Reservoir size hoose a reservoir size that holds enough oil to fill all of your lines, manifolds and cylinders, with enough reserve for future needs. Each Enerpac cylinder has an oil capacity listed on its product page, and each power unit has a reservoir capacity listed. Valve type irectional valves allow you control over what portion of the circuit receives oil. Valves can be operated manually, by electric solenoid or by air pilot pressure. Multiple valves can be used with one power unit to control multiple circuits. ccessories or increased automation, electric pumps can be outfitted with additional accessories, including pressure switches, level switches, and control pendants. These options can either be factory installed or added to an existing power unit in the future. Options Manual valves 127, Electric valves 119, 120, ir operated valves 126 Important 231 cubic inches = 1 US gal. 61 cubic inches = 1 liter 1 US gallon = liters ower sources Valves System

94 Electric pumps pplication & selection Linear cylinders ower Sources Shown: ZW5020H-T01 Z-lass electric pumps are designed for use in the harshest manufacturing environments. The pumps provide reliable and durable performance in a wide variety of configurations. asic configurations ll pumps listed in this chart include L electrical box, 5 gallon reservoir, return line filter and either psi pressure gauge or pressure transducer (solenoid valve models). or additional options, see the complete pump matrix on page 106. ZW-Series with manifold Used when supplying pressure to multiple valve circuits Valves must be supplied separately ZW-Series with pallet de-coupling valve rovides momentary pressure and flow to fixture Ideal for pallet disconnect systems ZW-Series with continuous connection valve rovides solenoid control of one single or double-acting circuit ontrol valve supplied with integrated pilot operated check to ensure positive pressure holding ZW-Series with manual valve rovides manual control of one single or double-acting circuit ontrol valve supplied with center holding function to ensure positive position holding The new standard for workholding applications eatures Z-lass high-efficiency pump design; higher oil flow and by-pass pressure, cooler running and requires 18% less current than comparable pumps Totally enclosed, fan cooled industrial electric motors supply extended life and stand up to harsh industrial environments Multiple valve and reservoir configurations provide application specific models to match the most demanding workholding applications High-strength, molded electrical enclosure protects electronics, power supplies and L readout from coolant and contamination ump type Valve/manifold type Motor voltage ressure and tank ports Single station O3 Enerpac V-series Two station O3 our station O3 4-way, 3-pos. solenoid operated 4-way, 3-pos. solenoid operated 4-way, 3-pos. solenoid operated 4-way, 3-pos. solenoid operated 4-way, 3-pos. solenoid operated 4-way, 3-pos. solenoid operated 4-way, 3-pos. manually operated 4-way, 3-pos. manually operated 4-way, 3-pos. manually operated 50/60 Hz 230 V, 3 ph 230 V, 3 ph 230 V, 3 ph 230 V, 3 ph 230 V, 3 ph 115 V, 1 ph 230 V, 3 ph 460 V, 3 ph 115 V, 1 ph 230 V, 3 ph 460 V, 3 ph 115 V, 1 ph 230 V, 3 ph 460 V, 3 ph

95 ZW series Output oil flow and current draw low rate: in 3 /min ZW4 Oil flow & current vs hydraulic pressure ZW5 Oil flow & current vs hydraulic pressure ressure: 5000 psi max Oil flow (in 3 /min) Single Stage Two Stage urrent 115 V urrent draw () Oil flow (in 3 /min) Single Stage Two Stage urrent 115 V urrent draw () Motor: 1.0 & 1.5 hp Reservoir: gal E ombas eléctricas entrale hydraulique Tauchpumpe ressure (psi) ressure (psi) Important Single-stage pumps provide constant flow throughout the entire pressure range via a radial piston pump. Two-stage pumps provide high flow via a gear pump until the bypass pressure is reached. t pressures above the bypass setting, the radial piston pump provides flow to the maximum pressure. ZW4 Series Output oil flow at 5000 psi 60 in 3 /min L Electric Model Number ZW4020HG-G01 ZW4020HG-G11 ZW4020HG-G12 ZW4020HG-G21 ZW4020HG-G41 ZW4420-T ZW4420G-T ZW4420J-T ZW4420-T ZW4420G-T ZW4420J-T ZW4420L-G ZW4420LG-G ZW4420LJ-G ZW5 Series Output oil flow at 5000 psi 120 in 3 /min L Electric Model Number ZW5020HG-G01 ZW5020HG-G11 ZW5020HG-G12 ZW5020HG-G21 ZW5020HG-G41 ZW5420-T ZW5420G-T ZW5420J-T ZW5420-T ZW5420G-T ZW5420J-T ZW5420L-G ZW5420LG-G ZW5420LJ-G Important ll Z-lass electric pumps are S and E compliant. L electrical package is required for pumps utilizing electric valves, or optional accessories such as the pressure transducer, level switch, pressure switch or heat exchanger. ower sources Valves System

96 Electric pumps imensions & options Linear cylinders ower Sources Shown: ZW5020H-T User adjustable relief valve on all manual and solenoid valves: 3/8" NT on and ports 1/4" NT on auxillary ports Electric ox (Optional w/manual valve) Heat Exchanger (Optional) Roll ar (Optional) Return Line ilter (Optional) Skid ar (Optional) Oil rain Oil Level/Temperature Switch (Optional) Efficient design reduces heat generation and reduces power consumption alanced pump section reduces vibration improving durability and sound levels Optional back-lit L readout provides hour and cycle counts, low voltage warnings and pressure read-out when used with pressure transducer Low-voltage pendant on solenoid valve models with sealed switches improves operator safety Z-lass electric pumps are supplied with factory installed accessories such as valve manifold, pressure transducer, and return line filter, creating a complete power unit solution 1 E Usable oil capacity Max H 4 x Ø.34 Mounting hole roduct dimensions in inches [ ] low rate: in 3 /min ressure: 5000 psi Motor: 1.0 & 1.5 hp Reservoir: gallon User adjustable relief valve ll ZW-Series have a user adjustable relief valve to allow the operator to easily set the optimum working pressure Output flow rate ump Motor Relief Valve Sound in 3 /min series size adjustment level range 100 psi 700 psi 3000 psi 5000 psi hp max. psi d E ZW Series pump dimensions (in) ombas eléctricas entrale hydraulique Tauchpumpe Options gal 1 E H roduct selection H M8 x " deep ZW ,000-5, ZW ,000-5, Max

97 Return line filter and heat exchanger kits Z, ZHE series iltration: 25 micron ressure: max. 200 psi Max. flow: 12.0 GM Extend life of hydraulic increase system reliability Shown: Z E verage pressure drop (psi) ressure drop (psi) iltro iltre ilter ressure drop vs oil flow roduct selection Transfer: 900 tu/h ressure: max. 300 psi Voltage: 24V Oil flow (in 3 /min) roduct selection micron nominal filter cleans oil to increase system life Internal bypass valve to prevent damage if the filter is dirty ll installation included Kit assembles quickly and easily to Enerpac pump and manifold Maintenance indicator included Nominal Model Maximum Maximum ypass ilter filtration number pressure oil flow pressure gauge setting service indicator micron psi gpm psi lbs 25 Z ressure drop vs oil flow Oil flow (gal/min) 8 10 Extends system life Electrical connector factory installed ll installation included Stabilizes oil temperature at a maximum of 130º at 70º ambient temperature Stabilizes oil viscosity, increasing oil life and reduces wear of pump and other hydraulic Voltage Model Thermal mperage Maximum Maximum number transfer* draw pressure oil flow Z series The oil filter kit removes contaminants from the return oil flow before allowing it back into the reservoir, reducing component damage. Options -25 replacement filter element or best performance, replace filter element on a regular basis. hange filters when changing oil or four times a year, whichever comes first. Shown: ZHE-E10 ZHE series Heat exchanger removes heat from the return oil to provide cooler operation. ower sources Valves System tu/h kjoule psi gpm lbs 24 V ZHE-E *t 0.5 g/min and ambient temperature of

98 Level/temp switch & pressure transducer ZLS, ZT series Linear cylinders ower Sources Shown: ZLS-U4 98 ZLS series Oil level indicator for pump reservoir. If the pump is mounted in a remote area that does not provide visual access to the external oil level sight glass, the level/temp switch will turn off the pump before internal damage can occur due to cavitations. Shown: ZT-U4, ZS-W4 ZT/ZS series ZT pressure transducer provides constant pressure monitoring for automated pump control. ZS pressure switch shuts down motor at set pressure. Importante The pressure transducer is factory installed in the port on pumps supplied with valves, and in the port on models with manifolds. Electronic level/temp switch for feedback on pump oil level rop-in design allows for easy installation to pump reservoir Electrical connector included uilt-in thermal sensing provides feedback on oil temperature Senses low oil level in pump reservoir roduct Selection ixed Model Voltage Thermostat Maximum temperature number rating setting pressure signal o mps psi lbs ontrol your pump, monitor pressure ZT pressure transducer More durable than analog gauges (against mechanical and hydraulic shock) More accurate than analog gauges (0.5% full scale) alibration can be fine tuned for certification uto-mode provides automatic pressure make-up isplay pressure in psi, bar or Ma dustable Electrical Model ccuracy eadband pressure specification number (full scale) range psi psi lbs Mechanical adjustment 50-10, m ZT-U4 0.5% , V/ N.O. ZS-W4 2% Note: Electrical harness included with kit. ZS-W4 includes psi pressure gauge Temp. set point: 175 E E Voltage: 24 V/ Indicador del nivel/temp. Interrupteur de niveau/temp. Ölstand/Temperaturschalter 175 ZLS-U4 24 V/ roduct Selection ressure: 50-10,000 psi Voltage: 24 V/ resión transductor ressostats ruckschalter T

99 Valve manifold ZW series ressure: 5000 psi Increased flexibility for complex systems E Stations: 1-4 valves horizontal Stations: 1-8 valves vertical olectores Manifolds Verkettungsblöcke Manifolds provide hydraulic connection to remote or pump mounted valves Used when multiple valves are required for controlling several independent circuits vailable for 2 and 4 station O3 as well as Enerpac V series mounting ressure and tank porting manifold available for use with remote valve sticks Manifolds include integrated relief valve for system pressure control Option 01 Option NT gauge port 3/8" tube (2x) (37 deg. flare) djustable relief valve Option 21, 41 VMM-001 Shown for reference only #8 SE (8x) UN roduct Selection NT tank port 1.38 V11 Shown for reference only Option 21 has two valve stations Option 41 has four valve stations Valve mounting pattern Option code Number of overplate (see page 106) stations model number orting manifold, SE ports 01 Enerpac V Series station O M-1 4 station O M Shown: M-2, -4 Manifolds allow the use of multiple valves powered by a single hydraulic pump. Manifolds are available factory installed on your Z-lass workholding power unit, or separately for future system upgrades. Options ressure transducer Level switch Enerpac porting manifold provides pressure and tank line to remote mounted valve stack on a machining center. ower sources Valves System

100 allet de-coupling pumps pplication & selection Linear cylinders Shown: ZW4420-T utomatic pressure control for palletized fixtures rogrammable clamp and unclamp pressure settings increase automation capability rogrammable dwell settings ensure desired pressure level is maintained on large circuits or circuits with accumulators Low-voltage pendant features sealed switches and operates at 15 V for improved operator safety acklit L provides pump usage information, hour and cycle counts ower Sources The new Enerpac allet e-oupling ump provides three modes of operation: Manual mode ump runs as long as operator holds down pendant button. UTO mode without timer ump runs until user-adjustable pressure setting is reached. UTO mode with timer ump runs until pressure setting is reached, and adjustable timer runs out. ZW5410-T used to connect and disconnect a palletized fixture. Example ircuits ouble-acting circuit STRS51 SUR121 MV722 Single-acting circuit S22 H652/ R650 roduct selection b a R650 b a X T T ZW4410-T T ZW4410-T T Output Motor Motor Model ressure Sound Usable oil flow rate size voltage number range level max. pressure in 3 /min hp psi d gal lbs ZW4410-T ZW4410G-T ZW4410J-T ZW5410-T ZW5410G-T ZW5410J-T

101 imensions & options ZW series Efficient design reduces heat generation and power consumption alanced pump section reduces vibration improving durability and sound levels Low-voltage pendant with sealed switches improves operator safety vailable in wide variety of reservoirs sized from 1 to 10 gallons Extensive list of accessories including Heat exchanger Roll-bars ressure transducer Level and temperature switches low: in 3 /min ressure: 5000 psi max Motor: 1.0 or 1.5 hp Reservoir: gal Operation pallet de-coupling pump Manual mode Motor and pump operate only when operator presses and holds the up (or down) arrow on the pendant. When button is released, pressure in the hoses is relieved. UTO mode With WELL timer set equal to zero, operator starts the motor by pressing and holding the up (or down) arrow on the pendant. ump builds to pressure on the clamp (or unclamp) circuit until it reaches customer programmed setting. The motor immediately turns off and pressure in the hoses is relieved. With WELL timer set greater than zero, operator starts the motor by pressing the up (or down) arrow on the pendant. Once the pump reaches the programmed setting, the WELL timer starts. When the timer runs out, the motor stops and pressure in the hoses is relieved roduct dimensions in inches [ ] ZW-Series umps with 1- and 2-gallon reservoir Usable Model H oil number capacity gal ZW4 ZW5 1.0 ZWxx04xx ZWxx08xx Max H 4 x ø.34 Mounting holes lbs Important Enerpac recommends a pressure differential of no less than 200 psi for most applications. If you believe your application requires a tighter differential, please contact us directly. Options Heat exchanger Level switch ressure transducer Return line filter Important or complete ordering matrix of all factory-installed options visit ower sources Valves System

102 ontinuous connection pumps pplication & selection Linear cylinders Shown: ZW4420-T utomatic pressure control for continuous connection fixtures rogrammable pressure setting allows pump to maintain system pressure continuously Includes pilot operated check valve ensuring pressure is maintained in circuit Z-lass high-efficiency pump design; featuring higher oil flow and by-pass pressure than comparable pumps High-strength, molded electrical enclosure protects electronics, power supplies and L readout from harsh industrial environments ower Sources The new Enerpac ontinuous onnection ump provides two modes of operation: Manual mode ump runs continuously, building pressure as long as operator holds down pendant button. UTO mode ump runs continuously, maintaining user-set pressure window on clamp circuit as long as necessary. ZW5410-T used to control clamping cycle on a horizontal machining center. Example ircuits ouble-acting circuit SLL-201 L-201 Single-acting circuit SLLS-51 L-21 T roduct selection T X b a b a T T ZW4410-T ZW4410-T Output Motor Motor Model ressure Sound Usable oil flow rate size voltage number range level pressure in 3 /min hp psi d gal lbs ZW4410-T ZW4410G-T ZW4410J-T ZW5410-T ZW5410G-T ZW5410J-T

103 imensions & options ZW series Output oil flow and current draw Oil flow (in 3 /min) ZW4 Oil flow & current vs hydraulic pressure Single Stage Two Stage urrent 115 V urrent draw () Oil flow (in 3 /min) ZW5 Oil flow & current vs hydraulic pressure Single Stage Two Stage urrent 115 V urrent draw () low: in 3 /min ressure: 5000 psi max Motor: 1.0 or 1.5 hp Reservoir: gal ressure (psi) ressure (psi) Operation continuous connection pump Manual mode The operator turns the pump motor on, and then presses and holds the up arrow on the pendant. When the button is released, the valve shifts to neutral, but pressure is maintained in the clamp circuit by the pilot-operated check valve. When the operator presses and holds the down arrow on the pendant, pressure in the clamp circuit will release, and the fixture will unclamp. UTO mode The operator turns the pump motor on, and then presses and holds the up arrow on the pendant. When the customer-programmed HI RESS setting is reached, the valve shifts to neutral, but pressure is maintained in the clamp circuit by the pilot-operated check valve. If pressure drops below the LO RESS setting, the valve will re-activate and build pressure in the clamp circuit again. The pump will maintain this cycle until the operator presses and holds the down arrow on the pendant. When the down arrow is pressed, pressure in the clamp circuit will release, and the fixture will unclamp ZW-Series umps with 2.5, 5, 10 gallon reservoir roduct dimensions in inches [ ] Usable oil Model 1 E H capacity number gal ZW4 ZW5 2.5 ZWxx10xx ZWxx20xx ZWxx40xx E 14.9 Max H lbs Important Enerpac recommends a pressure differential of no less than 200 psi for most applications. If you believe your application requires a tighter differential, please contact us directly. Options Heat exchanger Level switch ressure transducer Return line filter Important or complete ordering matrix of all factory-installed options visit ower sources Valves System

104 Single station O3 pumps pplication & selection Linear cylinders ower Sources Shown: ZW4020H-T21 with VET-11 valve ump accepts any industry standard O3 style directional valve. lso available with 2 station and 4 station manifolds. Important e aware of leakage rates of any valve installed on an Enerpac pump. Many standard spool valves have excessive leakage rates at higher pressures that can limit the performance of the electric pump. e sure to consult Enerpac if you are unsure of your choice of valve. ZW5020H-11 with customer installed valve used to provide pressure to a clamping fixture. Industry standard mounting for electric or manual valves Highly efficient design provides increased flow rates, reduced heat generation and a decrease in power consumption Extensive list of accessories including Heat exchanger Roll-bars ressure transducer Level and temperature switches Replaceable piston check-valves increase service life of major pump Optional backlit L provides pump usage information, hour and cycle counts lso available with 2 station and 4 station manifolds Operation single station O3 pumps The Single Station O3 pumps are supplied without the standard L electrical control. This configuration is intended to be used with user supplied controls. ontrol requirements include: Motor Starter or ontactor, and remote control of the pump mounted valve. Typical applications include: Special Machines and N Machines where the control of the pump and valve will be done by L or machine control. The use of the Z Return Line ilter is recommended. If the pump is to be run at pressure at a relief valve setting, the ZHE-E10 Heat Exchanger is also recommended. or monitoring of the oil level and temperature, use the ZLS-U4 Level/Temp Switch. or pump shutdown at pressure, the ZS-W4 ressure Switch Kit can provide an input to the customer supplied controls. s these accessories are designed to be used with the standard Enerpac L control, the customer assumes responsibility to adapt the standard leads to their controls. roduct selection Output Motor Motor Model ressure Sound Usable oil flow rate size voltage number range level max pressure in 3 /min V psi d gal lbs ZW4010G ZW4010GG ZW4010GJ ZW5010G-T ZW5410G-T ZW5410J-T

105 imensions & options ZW series Output oil flow and current draw Oil flow (in 3 /min) ZW4 Oil flow & current vs hydraulic pressure Single Stage Two Stage urrent 115 V urrent draw () Oil flow (in 3 /min) ZW5 Oil flow & current vs hydraulic pressure Single Stage Two Stage urrent 115 V urrent draw () low: in 3 /min ressure: 5000 psi max Motor: 1.0 or 1.5 hp Reservoir: gallon ressure (psi) ressure (psi) ZW-Series umps with 2.5, 5, 10 gallon reservoir roduct dimensions in inches [ ] Usable oil Model 1 E H capacity number gal ZW4 ZW5 2.5 ZWxx10xx ZWxx20xx ZWxx40xx E 14.9 Max H lbs Important Enerpac recommends a pressure differential of no less than 200 psi for most applications. If you believe your application requires a tighter differential, please contact us directly. Options Heat exchanger Level switch ressure transducer Return-line filter VSS, VST solenoid valves 126 VMM series manual valves 127 Important or complete ordering matrix of all factory-installed options visit ower sources Valves System

106 ZW Electric ump ordering matrix low: in 3 /min ressure: 5000 psi max Motor: 1.0 & 1.5 hp Reservoir: gal. ustom build your pump This is how a ZW series Model number is built: Z W H G - G 01 Linear cylinders ower Sources E ombas eléctricas entrale hydraulique Modulare Spannpumpe Example ZW4020G-GS21 is a 60 in 3 /min, single-stage pump with a 2 station 03 manifold, standard electric, 5 gallon reservoir, 115 volt, 50/60 Hz motor, return line filter and psi pressure gauge. ZW4410J-T is a 60 in 3 /min, 2-stage pump with a pallet de-coupling valve, L electrical box, 2.5 gallon reservoir, volt 3-phase motor and pressure transducer. ZW5040HJ-GL01 is a 120 in 3 /min, 2-stage pump with a SE porting manifold, L electrical box, 10 gallon reservoir, volt 3-phase motor, return line filter, psi pressure gauge and level and temperature shutdown switch roduct Motor low Valve Usable Valve Voltage Options Manifold Type Type Group Type Oil Operation Options apacity 1 roduct type Z = Z-lass ump 2 Motor type W = Workholding Electric 3 low group 4 = 60 in 3 /min 5 = 120 in 3 /min 4 Valve type 0 = No valve or valve manifold 2 = 3-way, 2-position, manual valve 3 = 3-way, 3-position, manual valve 4 = 4-way, 3-position, manual or solenoid valve 6 = 3-way, 3-position, tandem center w/.o. check (manual only) 8 = 4-way, 3-position, tandem center w/.o. check (manual only) 5 Usable oil capacity 10 = 10 Liters (2.5 gallon) 20 = 20 Liters (5 gallon) 40 = 40 Liters (10 gallon) 6 Valve operation = Solenoid valve (pallet de-coupling) with pendant and L (valve type 4) = Solenoid valve (continuous connection) with pendant and L (valve type 4) G = Valve manifold without L (valve type 0) H = Valve manifold with L (valve type 0) L = Manual valve with L (without pendant, valve type 2, 3, 4, 6 or 8) M = Manual valve without L (valve type 2, 3, 4, 6 or 8) N = No valve, without L (valve type 0) W = No valve with L (valve type 0) Example The ZW5810LG-T is a 120 in 3 /min, 2-stage pump with a manual 4-way, 3 position tandem center valve, integrated.o. check, L electrical box, 2.5 gallon reservoir, volt 3-phase motor, return line filter and pressure transducer. 7 ower supply Single hase = 115V, 1 ph, Hz *3 E = V, 1 ph, Hz European plug I = V, 1 ph, Hz US plug Three hase M = V, 3 ph, 50/60 Hz G = V, 3 ph, 50/60 Hz W = V, 3 ph, 50/60 Hz K = 440V, 3 ph, 50/60 Hz J = V, 3 ph, 50/60 Hz R = 575V, 3 ph, 50/60 Hz 8 Options *2 = Return line filter, 25 micron G = psi pressure gauge, 21/2" *5 H = Heat exchanger *4 L = Level/temperature switch *4 N = No handles (lifting eyes only) *2 = ressure switch *4 R = Roll bars S = Single stage T = ressure transducer *4 U = oot switch *4 9 Manifold options *5 (ump types G and H only) 01 = SE porting manifold 11 = Single station = V series manifold 21 = 2 station = 4 station 03 *1 Options should be specified in alphabetical order. *2 Unless specified, all pumps are supplied with reservoir handles. *3 115 volt pumps are supplied with E and S approved 15 amp plug for intermittent use. 20 circuit recommended for frequent full pressure use. *4 These options require L electrical package. ressure switch option only available on manual valves without locking valve. The L electrical package can accept either a pressure switch or pressure transducer, but not both. *5 ressure gauge not available on pump models with pressure transducer. ressure transducer provides digital pressure readout on L display. 106

107 Enerpac system solutions ustomized to your application's requirements ustom-built power units and valve stacks provide the exact solution you need Ideal for control of multiple hydraulic circuits from one pump esigned and built to your specifications vailable as electric or air-powered hydraulic pumps Remote or pump-mounted valve stacks Select your pump type ir operated pump est choice for small to medium circuits with intermittent duty requirements. ir operated pumps have lower flow rates than electric pumps, but are more economical. Electric operated pump est choice for large circuits with high duty requirements. Electric pumps have the highest flow rates and can be configured with many different options ontact Enerpac to complete the design ontact Enerpac at or at and ask to speak to one of our experienced application engineers. They will guide you through the power unit design process. e prepared to provide answers to the following types of questions: What is the duty cycle requirement? How many circuits do you want to control? What clamping are in each circuit? o you need electrical controls provided by Enerpac? ive Enerpac V-series solenoid valves mounted to a ZW-series electric pump provide complex circuit control in a compact package. ZW-series pump, including an unloading circuit, designed to power four separate load stations in a machining center. custom L with push button controls and power unit to operate an Enerpac automatic coupler system. ower sources Valves System

108 Economy electric pumps pplication & selection Linear cylinders ower Sources Shown: WU-1301 The Economy pump is best suited to power small to medium size fixtures. Its lightweight and compact design makes it ideal for applications which require easy transport of the pump. The universal motor works well on long extension cords. Heavy on performance, light on weight Lightweight and compact design, 26 lbs Large easy-carry handle for maximum portability Two-speed operation reduces cycle times for improved productivity 115 V 50/60- or 220 V 50/60-cycle universal motor will operate on voltage as low as 60 volts 24 V remote motor control, 10-ft length for operator safety Starts under full load High strength molded shroud with integral handle, protects motor from contamination and damage esigned for intermittent duty cycle WU-1100 series rovides advance/auto-retract of singleacting cylinders 10-foot pendant controls motor and valve operation Use with 500 WU-1300 series rovides advance/hold/retract of single-acting cylinders 10-foot pendant controls motor and valve operation Ideal for applications requiring remote valve operation Use with S22 or S202 roduct selection Model number Used with cylinder ressure rating (psi) 1st 2nd stage stage WU-1100 single-acting 200 5,000 WU-1100E single-acting 200 5,000 WU-1300 single-acting 200 5,000 WU-1300E single-acting 200 5,

109 imensions & options WU series Oil flow (in 3 /min) Economy WU series pressure (psi) low: 25 in 3 /min ressure: 5000 psi max Motor:.5 hp Reservoir: gallon E ombas eléctricas entrale hydraulique Tauchpumpe roduct dimensions in inches [ ] Usable oil Model E H J capacity number gal Outlet ort SE #4 Tank ort ³/8" - 18 NT.50 WU WU-1100E WU WU-1300E Output Valve urrent Motor Sound Model flow rate type draw voltage level number in 3 /min amps V d 1st 2nd stage stage ump* WU ump* WU-1100E ump and Hold WU ump and Hold WU-1300E * Electric dump valve for auto-retract of cylinders. E J H lbs Standard equipment Gauge, filter and pressure switch umps are supplied with a manifold mounted 6000 psi gauge for convenient reading of pump pressure. filter at the pressure port helps to protect the pump from contamination. manifold mounted adjustable pressure switch provides control of the pump shutoff pressure ower sources Valves System

110 Electric submerged pumps Shown: WEM-1401 est performance for mid-range cylinders Reduce cycle times for improved productivity Two-speed pump unit provides rapid cylinder advance Submerged dual voltage induction motor, runs cooler and quieter vailable with heat exchanger for higher duty cycle applications Linear cylinders Externally adjustable relief valve no need to open pump when reducing pressure Reservoir mounting holes for easy mounting to fixed surface ull length side tube for easy monitoring of oil level uxiliary return port, eliminates the need for a separate adapter ower Sources 99_088 WE series Enerpac two stage electric submerged pumps are a quiet, economical workholding power source. Submerged in oil the motor stays cooler when used on an intermittent basis. Oil flow (in 3 /min) Oil flow vs hydraulic pressure ressure (psi) 5000 roduct selection Motor Motor mperage Maximum ressure Usable djustable voltage capacity draw oil flow rating oil relief at 60Hz psi capacity valve in 3 /min 50/60 Hz 1st 2nd 1st 2nd 1 ph hp stage stage stage stage gal psi lbs 115V-1ph ) 230V-1ph ) 1) Weight for WES and WET models is 83 lbs. Select your pump type WE-series with dump valve or use when load holding is not required Ideal for palletized workholding Motor is on only during work cycle WEJ series with remote jog Manual valve control Motor can be turned on and off by remote pendant for jogging capability WEM series with manual valve Manual valve control Manual motor control Simple and economical solution to your workholding power source needs WER series with remote actuated solenoid Solenoid directional with shear seal design Remote valve operation WES/WET series with pressure switch ressure switch turns motor on and off Used when pressure must be maintained over a period of time With pressure gauge 110 ressure switch specifications: - lassification NEM 1 - ressure range: I-51: psi I-31: psi 2008

111 WE series WE-series submerged low: 40 in 3 /min ressure: 5,000 psi max Heat Exchanger ressure switch and gauge (WES models) /8"- 18NT Motor:.5 hp Reservoir: 1.5 gal E ombas eléctricas entrale hydraulique Tauchpumpe Used with Valve Valve Model Motor Heat cylinder function type number voltage exchanger 50/60 Hz Single-cting dvance / Retract ump WE V Single-cting dvance / Retract ump WE-1101E 230V Single-cting dvance / Retract Jog WEJ V Single-cting dv. / Hold / Retr. Jog WEJ V ouble-cting dv. / Hold / Retr. Jog WEJ V Use (4x) 1/4-20 or M6 (coarse) bolts. Mounting holes not tapped. Single-cting dvance / Retract Manual 3/2 WEM V Single-cting dvance / Retract Manual 3/2 WEM V Single-cting dvance / Retract Manual 3/2 WEM-1201E 230V Single-cting dvance / Retract Manual 3/2 WEM V Single-cting dv. / Hold / Retr. Manual 3/3 WEM V Single-cting dv. / Hold / Retr. Manual 3/3 WEM V ouble-cting dv. / Hold / Retr. Manual 4/3 WEM V ouble-cting dv. / Hold / Retr. Manual 4/3 WEM-1401E 230V Single-cting dv. / Hold / Retr. Solenoid WER V Single-cting dv. / Hold / Retr. Solenoid WER V Single-cting dv. / Hold / Retr. Solenoid WER-1301E 230V ouble-cting dv. / Hold / Retr. Solenoid WER V ouble-cting dv. / Hold / Retr. Solenoid WER V ouble-cting dv. / Hold / Retr. Solenoid WER V Single-cting dvance / Retract Manual 3/2 WES V Single-cting dvance / Retract Manual 3/2 WET V Single-cting dv. / Hold / Retr. Manual 3/3 WES V Single-cting dv. / Hold / Retr. Manual 3/3 WES-1301E 230V ouble-cting dv. / Hold / Retr. Manual 4/3 WES V ouble-cting dv. / Hold / Retr. Manual 4/3 WES-1401E 230V ø Options G-series pressure gauges 154 L-series high-pressure filters 157 Z-series fittings H-series hydraulic oil Important Oil should be replaced every 500 working hours to ensure long life. hange filters when changing oil or 4 times a year whichever comes first. Heat exchanger cools oil in pumps used in higher duty cycle applications. Output flow rate should be matched to hydraulic used in the system. ower sources Valves System

112 WE Electric submerged pumps ordering matrix WE series Shown: WEM-1401 ustom build your submerged pump This is how a submerged pump model number is built up: If the submerged pump that would best fit your application cannot be found in the chart on pages , you can easily build your custom submerged pump here. Linear cylinders ower Sources 99_088 WER series Enerpac submerged motor pumps are available in a wide range of configurations to fit any requirement. Important WER series pumps use the VE-series valves shown on page 109. WER-13 series uses VE-series valve. WER-14 series uses VE-series valve. WES series pumps use I-51 pressure switch, adjustable from psi. WET series pumps use I-31 pressure switch, adjustable from psi. W E M roduct Motor ump ump Valve Res. Motor Type Type Type Series Type apacity Voltage 1 roduct Type W = Workholding ump 2 Motor Type E = Electric motor 3 ump Type = ump J = Jog M = Manual R = Remote (solenoid) S = ressure switch (I-51) T = ressure switch (I-31) 4 ump Series 1 =.5 hp 10,000 psi * To order WER models, for 60 Hz applications, replace the E suffix for I. Examples Model number: WER-1301 The WER-1301 is a.5 hp, 5,000 psi, submerged electric pump, with 1.5 gallon usable oil capacity, a 3-way, 3-position modular, remote solenoid valve (VE-series) and a 115 V, 1 hase, 50/60 Hz motor. 5 Valve Type 0 = No valve (WER only) 1 = ump 2 = 3-way, 2-position, normally open 3 = 3-way, 3-position, tandem center 4 = 4-way, 3-position, tandem center 5 = ustom VE-series valve (WER only) See example 2 below. 6 Reservoir apacity 01 = 1.5 gallon 7 Motor Voltage and Heat Exchanger = 115 V, 1 h, 50/60 Hz = 115 V, 1 h, 50/60 Hz with heat exchanger E = 230 V, 1 h, 50/60 Hz = 230 V, 1 h, 50/60 Hz with heat exchanger I = 230 V, 1 h, 60 Hz* Ordering example 1 Ordering example 2 Model number: WER VE15000 The WER-1501 is a.5 hp, 5,000 psi, submerged electric pump, with 1.5 gallon usable oil capacity. The valve, model VE15000 is a 115 V, 60 Hz solenoid valve. (or details and options for all VE-series valves see page 128.)

113 Hand pumps, S series low: in 3 /stroke ressure: ,000 psi Reservoir: in 3 E ombas manuales ompes à main Handpumpen Exclusively from Enerpac to power single-acting cylinders Internal pressure relief valve (except S-621) prevents over-pressurization Two speed operation reduces handle strokes by as much as 78% over single speed pumps Low handle effort minimizes operator fatigue ompact size enables easy conversion of manual fixtures to hydraulic power Shown: S-621, -51, -142 Options ittings Hoses Hydraulic oil Important -141, -142 and -202 are designed for a maximum operating pressure of 10,000 psi. roduct selection 180 S H 3/8"-18NT 1/4"-18NT -141, -142, -202 H H 1/8"-27NT 1/4"-18NT Maximum Usable Model ressure Oil volume iston Maximum imensions in inches hydraulic oil number rating per stroke stroke handle pressure capacity effort series Single and two-speed hand operated pumps for operation of single-acting cylinders. S-621 Screw pump Single speed non-vented, internally sealed screw pump to operate single-acting cylinders. an be mounted in any position and used to operate a single fixture. The piston is screwed into the pump, forcing the oil in the hydraulic system. psi in 3 psi in 3 1st stage 2nd stage 1st stage 2nd stage in lbs H lbs Single speed S ) 1) 60 2) , , Two speed 10, , , , ) Handle travel of S-621 is 2.50 inches; 25 handle rotations displace 6.2 in 3 of oil. 2) Handle effort on S-621 is 60 ft.lbs at 3000 psi _103 ower sources Valves System

114 ir hydraulic boosters pplication & selection Linear cylinders ower Sources 99_07_2 Shown: H-46, -5003, H and series boosters Large effective area of air piston allows compressed air to generate high output hydraulic pressure. RL-102 ir filter regulator V-42 Manual control valve V-19 heck valve In an automated clamping set-up with both hydraulic and pneumatic, H series boosters are used as a power source for the hydraulic system. or high production applications High speed operation Extended service life onstant hydraulic output Large oil delivery per stroke allows quick filling of cylinders for clamping or punching H series boosters iberglass wound air chamber eliminates possibility of rust due to moisture in air system esigned for fully automated production applications ouble-acting, one-shot, high speed operation of air piston series boosters One-shot spring return luminum construction uilt-in stroke sensor for automatic cycle operation 30 V switch closes 1" before end of full air piston stroke Internal self-bleeding utomatically purges air from system when booster piston is at highest point in circuit H series ir hydraulic booster Hydraulic system schematics omplete power systems eliminate the guesswork of selecting valves and other system. lug in your 15 to 115 psi shop air line and connect your hydraulic for a total system. G series 5000 psi gauge To hydraulic system H-46 V-42 RL-102 V

115 imensions & Options H/ series H series Oil pressure vs ir pressure series - Oil pressure vs ir pressure Ratio: 1:16-1:64 Oil pressure (psi) H-66 H-46 H-34 H ir pressure (psi) Oil pressure (psi) ir pressure (psi) 125 ressure: psi Oil flow: in 3 /stroke ir: scfm/cycle E Multiplicadores Multiplicateurs ruckübersetzer G3/8" H series ir Oil connection reservoir ) Ø 2.83" for model H-17 ir conn. * Oil connection (G1/4") *** dapter to 3/8" NT air connection is included. NOTE: Z-2060 daptor available for gauge port. series ir connection 3/8 ST G3/8" Oil fill port 1/2 S G1/8" Stroke sensor Selection chart Gauge port ) * 1.00 ø.43 Options ir valves 142 Regulatorfilter-lubricator ittings Oil pressure Oil volume ir to oil Model ir ir Hydraulic Hydraulic ir operating per stroke pressure number consumption piston piston stroke pressure psi ratio per cycle 1) diameter diameter at 75 psi at 100 psi ft 3 air pressure air pressure in 3 at 85 psi air in in in psi lbs H series :16 H :34 H :46 H :64 H series 1) One cycle = advance + retract stroke. Note: Seal material: una-n, olyurethane Gauge port 3/8 S Important oosters can provide high oil flow rates based on the volume of in-coming air. o not exceed the flow rate requirements of the being used. or vertical mounting of booster, an elbow fitting is recommended for the oil reservoir : : ower sources Valves System

116 ctivator wand and booster Shown: R-1061, 81 ontamination resistant closed hydraulic system No-leak palletized system, eliminates oil loss at connection point losed design prevents machining chips and coolant from entering the hydraulic circuit ooster can be mounted in either horizontal or vertical position for flexible fixture design 99_078 Linear cylinders ower Sources and R series Mechanical energy transfer system uses external cylinder to operate receiver booster. leeder Valve L-21 Hydraulic ccumulator slide places the wand into the fixture mounted booster in this automated application for machining castings. SURS-51 Swing ylinders Hydraulic system schematics The ctivator Wand R-1061 is placed into the receiver booster -81 or The mechanical transfer of force from the activator wand plunger to the booster piston provides oil flow to the system. G series ressure Gauge leeder Valve V-66 Shut-off valve -171 MS booster roduct selection R-1061 ctivator Wand SURS-51 E-2001 Workholding ump L-21 V-66 "E1001" ressure Oil flow Oil Stroke Model Effective Operating ratio ratio volume number area pressure per stroke Receiver booster -171 R-1061 in 3 in in 2 psi lbs 2:1 1.75: :1 1.75: ctivator wand R ,

117 imensions & Options /R series -81, -171 Output pressure (psi) ctivator wand input vs booster output pressure SE# H , -171 H R ,000 SE#4 K1 4,000 3/8"-18 NT 6,000 L2 8,000 R-1061 Input pressure (psi) J J1 E 10,000 L L1 E E roduct dimensions in inches [ ] K 1 S Options ittings Hoses Ratio: 2:1 Stroke: in ressure: psi E Multiplicadores Multiplicateur etätigungszylinder und ruckverstärker or 10,000 psi pumps, refer to the Enerpac Industrial Tools atalog E325. Existing fixtures with manualconnect single-acting circuits can be easily upgraded into the wand and booster. Important The activator wand has a 2 to 1 ratio of input pressure versus output pressure. The booster output flow is 1.75 times the wand input flow. Model 1 E H J J1 K K1 L L1 L2 S number ø ø Receiver booster ctivator wand R ower sources Valves System

118 Linear cylinders ower Sources 99_055 Oil/oil intensifiers Mostrados: I I series When hydraulic pressure from an existing power source is limited, Enerpac oil-to-oil intensifiers serve to increase output pressure to satisfy the required application. I-Series intensifier utilizes low pressure machine hydraulics to power clamping cylinders. High flow units intensify low inlet oil pressure to high outlet pressure Internal bypass valving enables high output flow rates Wide range of intensification ratios allows for adapting to various operating pressure requirements ompact and self-contained design allows for ease of installation Include dump valve eliminating the need for an external pilot check valve Select fit of all internal provides long operating life OS V-1 Intensifier principle When oil is supplied to the inlet (IN) port it flows freely past the check valves (V) and the dump valve to the cylinder and advances it. s the inlet pressure increases the oscillating pump (O) automatically increases the outlet pressure by the chosen intensification. Once the maximum pressure is reached, the pump frequency lowers and balances at the maximum pressure. I Series IN R Low pressure O V1 I-xxx intensifier V2 V L2101 High pressure roduct selection To cylinder Ixxx ree flow from the cylinder to tank occurs when the directional control valve is switched to supply the R-port. 10 micron filtration is required on all ports in the circuit to ensure trouble free operation. ilters and flow control included. L2101 Maximum ressure Maximum Maximum Model Inlet pressure intensification input flow output flow number pressure ratio range with psi in 3 /min in 3 /min dump valve psi lbs 10,000 1 : I ,000 1 : I ,000 1 : I ,000 1 : I * Operating pressures above 5000 psi require high pressure fittings or intensifier models with S ports. ontact Enerpac for details.

119 imensions & Options I series System set-up information: Ratio: 1:3.2-1:6.6 With dump valve (I models) The intensifier with the dump valve is used to achieve high pressure on the advance side of a double-acting cylinder. E R I IN low: in 3 /min ressure: ,000 psi E Multiplicadores Multiplicateur Low pressure Öl-Öl ruckübersetzer ø With external dump valve In a circulating system where the pump s oil flow is higher than the maximum inlet oil flow of the intensifier, an external check valve and flow control valve reduces the pump s oil flow. This application can be set up when machines are equipped with low pressure hydraulics but the pressure to clamp the workpiece must be higher. L2101 roduct dimensions in inches [ ] I series M24x1,5 SE # E Low pressure Ixxx SE #4 IN I R R IN R IN L2101 V-1 Options L-series, high-pressure filters 157 irectional valves Z-series fittings Important o not exceed maximum allowable inlet pressure. 10 micron filtration is included to ensure trouble-free operation. pplications above 5000 psi require high pressure fittings or intensifier models with S ports. ontact Enerpac for details. I models with dump valve provide an economical means of relieving pressure from the system. an be panel mounted into machine (M24x1,5 thread). ower sources Valves System

120 Valves Technical support Refer to the Yellow ages of this catalog for: Safety instructions asic hydraulic information dvanced hydraulic technology MS (lexible Machining Systems) technology onversion charts and hydraulic symbols ontrolling the operation of your clamping system requires the use of many specialized directional, pressure and flow control valves. Enerpac has the complete line of valving to complement any hydraulic system. hoose from either manual or electric directional valves, and a wide variety of pressure control, flow control and specialty valves to provide the control and automation that your application needs

121 series page Modular directional valves V 122 ressure switches, low control valve SK V ressure reducing valve Tie rod kits, Remote/porting manifolds Solenoid valves, Inline check valve 4-Way manual control valves O3 Valves and accessories Valve manifolds Solenoid modular valves 3-Way directional manual control valves 4-Way directional manual control valves Sequence valves ilot operated check valves low control valves ccessory valves ir valves and accessories RV TRK WM/ V, VS, V VMM VMT VE M VE V V MV WV, V MV, V V MH, HV LV, V V, VR RL 124,

122 Modular directional valves V-series Linear cylinders ower sources Valves 99_017 99_030 Shown: V-12 V-series Solenoid directional valves control the direction of the oil flow to each cylinder port. pplication With the use of a -12 manifold, these valves allow quick and easy assembly of hydraulic control valves on your Enerpac ZW-series pump. or remote mounting of these valves use a WM-10 manifold. V-series Enerpac V-series valves mounted on -12 manifold, mounted on a ZW-series workholding pump. 122 Solenoid directional valves ual poppet valve design for zero internal leakage Inlet check-valve standard High cycle switching Stackable to 8 valve stations high psi operational pressure Oil flow capacity 427 in psi Oil flow capacity 915 in 3 0 psi G1/4" oil connections and integrated filtration Multiple voltage options V series roduct selection ressure switch ports at both sides for SK-8, 9 low control ports at both sides for V-3 ressure: 5000 psi Max. low: 915 in 3 /min E Válvulas de control Electrodistributeurs Wegesitzventile Options WM-10 series manifolds Tie rod kits V-11 1x bl-act. / 2x Sgl-act m V-12 1x bl-act. / 2x Sgl-act. T 4/3 loat center V-21 1x bl-act. / 2x Sgl-act m V-22 1x bl-act. / 2x Sgl-act. Oil pressure (psi) Oil flow vs pressure drop Oil flow (in 3 /min) current Model low path Used with cylinder(s) number at 50/60 Hz 4/3 losed center G 1 /4" T 3/2 Normally closed V-31 1x bl-act. / 2x Sgl-act m V-32 1x bl-act. / 2x Sgl-act. 3/2 Normally open V-41 1x bl-act. / 2x Sgl-act m V-42 1x bl-act. / 2x Sgl-act. 3/2 1 port normally closed, 1 port normally open V-51 1x bl-act. / 2x Sgl-act m V-52 1x bl-act. / 2x Sgl-act. Note: IN electrical connector included. Valve weight 6.5 lbs (3,0 kg.).

123 ressure switches, low control valve SK, V-series ressure: 5000 psi low: 427 in psi Voltage: 115 V, 24 V E resostatos ressostats ruckschalter To control your hydraulic system Mounts directly into V-series modular valves In-line installation artridge type flow control valve and pressure switches can be manifold mounted for remote use Lockable adjustment screw on SK models Shown: SK-8, V-3 Options -1 uxiliary block 125 ressure reducing valves 124/139 ack pressure (psi) V-3 ack pressure vs flow return low direction Oil flow (in 3 /min) roduct selection SK-8, 9mounting dim. V-3 V-3 mounting dimensions rotective cover M8x1.157 Hex. djustment screw 1.26 Hex. Lock nut screw-in throttle V valve Hydraulic connection M4 Solenoid Model Hydraulic ressure eadband Maximum current number scheme range oil flow at 50/60 Hz psi psi in 3 /min ressure switch ressure switch low control valve SK-8 SK max. ø ø min ø ø M8x min..98 ø SK-8, 9 djustable pressure switches will open or close electrical contacts when the desired pressure value is reached. pplication To open or close an electric circuit when a preset pressure value is reached. The electrical circuit is used to control further working cycles, such as actuating control valves or to terminate a working cycle. irectly mounted into Enerpac V-series valves. V-3 Screw-in throttle type valve to control the amount of oil flow to the hydraulic cylinder. pplication Used to control cylinder speed in hydraulic circuits. irectly mounted into Enerpac V-series valves or custom made manifolds for remote applications. SK-8 and V-3 directly mounted on V-valves. 99_028 99_020 Valves System

124 ressure reducing valves RV-series Linear cylinders Shown: RV-1 recise control of hydraulic pressure Stackbuilding with V series modular valves Stackable for multiple pressures on one valve stack assembly Tool adjustable knob can be locked recise control of pressure ressure: 5000 psi low: 417 in 3 /min E Válv. reguladora de presión Valve de pression réglable ruckreduzierventil R ower sources Valves RV series These valves regulates system pressure for all subsequent valves, according to the adjusted pressure. Maintains a constant pressure in a secondary circuit. Includes a check valve that prevents pressure drop on secondary side. pplication Used when a hydraulic supply with a higher pressure (primary side) must also be used for another circuit with a lower pressure (secondary circuit). RV-1 can be stack built between V-series valves. RV-1 connected with remote manifold WM-10. RV-1, RV G 1 /4" roduct selection Gauge ort V-21 (24 V) or V-22 (115 V) Options V-Modular valves ressure switches Tie rod kits RV-1 ressure Reducing Valve Valve stacking example X X TRK-2 V3 V3 R WM-10 Mounting djustable Maximum Model Oil Maximum style pressure pressure number ports oil flow range G2517L psi psi S in 3 /min lbs V-series RV-1 G1/4" V-series RV-5 G1/4"

125 Tie rod kits, Remote/porting manifolds TRK, WM/-series E Mounting: 1-8 V valve stations ressure: 5000 psi max. low: 915 in 3 /min ernos de montaje de válv. Vis de montage de distrib. Zugstangen T M3 Options ressure switches 123 V-series directional valves 122 Gauges V-series 153 M4 M5 roduct selection Simplifies valve and accessory mounting TRK-series tie rods onnects 1 to 8 V-series valves station high rovide leak-free sealing valves G1/4" oil connection WM-10 remote manifold llows remote V-series valve mounting djustable relief valve incorporated G1/4" oil connection -1 porting manifold rovide 3 auxiliary pressure lines G1/4" oil connection.71 Quantity Model Tie rod Mounting of stackable number length thread V-series directional valves inch mm Tie rod kits 1 TRK M6 2 TRK M6 3 TRK M6 4 TRK M6 5 TRK M6 6 TRK M6 7 TRK M6 8 TRK M TRK ap nut Seal washer WM-10 Mounting for SK-8, 9 djustable Relief valve M G 1 /4"(2x) R M Endplate.47 Tie rod G 1 /4" (3x) roduct selection 1.34 M3 T M4 M Oil Model Hydr. Maximum ports number schematic pressure S Remote manifold with pressure relief M5 psi 2x G1/4" WM orting manifold ( port connection) 3x G1/4" Shown: WM-10, TRK-4, -1 TRK-series Tie Rod Kits mount Enerpac V-series modular valves to the WM-10 manifold and can accommodate one to eight Vvalve stations. WM-10 Remote manifold allows mounting of V-series modular valves to a remote location from the pumping unit. This manifold has a built-in adjustable relief valve. -1 orting manifold provides three pressure ports for auxiliary lines or accessories, such as a pressure gauge. Mounts between V-series modular valve stations using TRKseries tie rod kits. Tie rods mount V-series valves and accessories to manifold, providing leak-free sealing _035 Valves System

126 Solenoid valves, Inline check valve V, VS, V-series Linear cylinders ower sources Valves 99_111 99_121 Shown: VST-1401, VSS-2210 VSS, VST-series Solenoid and air piloted directional control valves. oppet design for zero leakage promote system efficiency. Increases the life of your workholding pump by decreasing internal valve leakage. pplication dvance and retract for singleand double-acting cylinders. The valves require check valves for positive load holding and can be installed for the same independent operation with single-acting cylinders by blocking the port. VSS-2210 mounted directly on a Turbo II air pump for use on positive clamping fixture. Zero leakage poppet valves increase efficiency oppet valve design for zero leakage 4-way, 2-position float offset or normally open O3 mounting pattern IN-standard rectifier plugs for easy connection to power source ir operated models eliminate need for electricity Including O-rings and mounting bolts SE manifold ports simplify plumbing Inline check valve provides positive load holding VS/VT.25 VSS VST M-1 manifold. To be ordered separately. roduct selection T M-1 manifold. To be ordered separately. T T T G 4-way, 2 position psi max. VS way, 2 position 1.60 VSS way, 2 position VSS-2210 T way, 2 position 4-way, 2 position psi max VT-0710 VST way, 2 position Inline check valve VST-2210 T V1 T G T ressure: psi low: 690 in 3 /min max. Voltage: 115 V, 24 V E Electroválvulas Electrodistributeurs Elektromagnetische Ventile Options O3 Manifolds M-series ittings Important T or multiple circuit applications, the V1 inline check valve is recommended to prevent pressure drop on the holding circuit. Order bolt kit to mount V1 with VMM. V1 Inline check valve Valve flow path Solenoid Model Hydr. ressure ressure Max. voltage number symbol range drop 1) oil current at 50/60 Hz psi psi in 3 /min Solenoid poppet valves Normally open Solenoid poppet valves Normally closed ) ressure drop from - or - at maximum oil flow of 690 in 3 /min

127 4-way manual control valves VMM, VMT-series ressure: 5000 psi T 126 low: 1040 in 3 /min E Válvulas de control de 4 vias istributeurs à 4 voies 4-Wege-Ventiler Options O3 Manifolds T V1, Inline check valve Hoses and couplers ittings Important or multiple circuit applications, the V1 inline check valve is recommended to prevent pressure drop on the holding circuit. Order bolt kit to mount V1 with VMM. ressure on return side (tank) should not exceed 250 psi. roduct selection Manual control of single and double-acting cylinders Near zero leakage pressure seal design 4-way, 3-position etented handle positions Low handle effort 12 lbs, even at full pressure Handle can be repositioned for side by side valve mounting ompact size for directly mounting on fixture for individual circuit control VMT-001, 003 Valve Mounting Oil Model Hydraulic ressure ressure Max. mounting bolts ports number symbol range drop 1) oil flow pattern included psi psi in 3 /min 4-way, 3-position control valves anel mtg. O3 anel mtg. O3 #10-24UN - #10-24UN SE #4 SE #4 VMT-001 VMM-001 VMT-003 VMM-003 T T ) ressure drop from - or - at maximum oil flow of 1040 in 3 /min. Seal material: una-n, olyurethane UN SE #4 7 /16"-20UN (4x) 2.03 VMM-001, #10-24UN 1.22 Shown: VMM-001, VMT-001 VMM and VMT-series Manual directional control valves for single- and double-acting cylinder control. Lapped pressure seal surface provide near zero leakage. The VMT series has threaded port connections and removable holding bracket for panel mounting. pplication anel mounting on fixtures for control of individual circuits. The blocked pressure port in the center position allows demand style pumps to stall out, saving energy. The valves require check valves for positive load holding. Several VMT-001 valves mounted on fixture waiting to be transferred to machine _102 99_122a Valves System

128 O3 Solenoid valves, Inline check valve VE-series Linear cylinders Shown: VEX-11 valve O3 irection Valve and accessories O3 mounting pattern irectional valves ilot operated check valve ual flow control ressure reducing valve VEW ressure: psi low: 3-15 gpm Voltage: 24 V E Electrovávulas Electrodistributeurs Elektromagnetische Ventile Options O3 Manifolds M-series ower sources Valves 99_111 VE-series Spool style solenoid valves and control modules are used in circuits that do not require zero leakage. pplication Used to control the advance and retract of single acting and double acting cylinders. The dual check valve can be used to lock pressure in a group of cylinders. The dual flow control offers independent control of cylinder advance and retract speeds. The pressure reducing valve sets a circuit pressure lower than the main pump pressure. VEX-11 valve on ZW5020HG- T21 pump. VET-11, VEX Open V-4 roduct selection T ressure reducing valve RV T T T ittings Important To hold the pressure in a clamping circuit, use the VEX11 valve with the V2 check module. o not use O3 spool valves with pressure shutdown pumps. Valve flow path Solenoid Model Hydraulic ressure ressure Maximum voltage number symbol range 50/60 hz psi psi gpm 2-position/4 way 24 V VEW mps 3-position/4 way, 24 V VET losed center 1.32 mps 3-position/4 way, 24 V VEX loat center 1.32 mps ual flow control V ual pilot operated V check valve losed V in 1.67 Spacer RV

129 .31 M-series Valve manifolds Mounting: 1-6 O3 type valves ressure: 5000 psi max. E olectores Manifolds Verkettungsblöcke T T When independent control of multiple cylinders is required Multi-station manifolds with SE porting minimizes plumbing Mounting pattern for O3 valves and Enerpac VSS and VST ositive Seal ontrol Valves and VMM manual valves Manifolds allow use of accessories, such as pressure switches and gauges Shown: M-4, M-1 Options VSS, VST, VMMseries valves 126 ressure switches Gauges ittings Important Use M-1 cover plates to seal non-used manifold stations. SE # T UN roduct selection M-1 M-2, -4 SE #4 7 /16"-20 UN SE #8 Valve mounting pattern mount Model Oil ports Optional Manifold of valve number cover plate length stations model number* L in lbs Single station manifold O3, Enerpac VSS, VST valves 1 M-1 SE #4 1.0 Multiple station manifolds O3, Enerpac VSS, VST valves 2 M-2 SE #8 M O3, Enerpac VSS, VST valves 4 M-4 SE #8 M L O3 Valve mounting pattern Standard mounting hole for.312 Socket Head ap Screw T T M-series Single or multiple station manifolds allow installation of VSS and VST-series positive seal control valves or other O3 valves. Ideal in applications where independent control of multiple cylinders is required. Each non-used valve station on manifolds must be sealed with M-1 cover plate. 99_101 Valves System *Note: - M-1 manifold cover plate must be ordered separately. Includes gasket and mounting bolts

130 Solenoid modular valves pplication & selection Shown: VE-15600, VE-15000, VEK Unmatched combination of possibilities Relief valve and pilot-operated check accessory valves are stackable eliminating external plumbing Remote and pump mounting Mounting bolts included with each modular valve Linear cylinders ower sources Valves VE-series Solenoid modular valves are especially well suited for workholding and production applications. With 11 possible flowpaths and 2 manifolds, for either Enerpac s submerged pump or a remote NT mount, you can custom build a valve for almost any application. pplication Ideal when mounted on remote manifold for applications where independent control of multiple cylinders is required Select the required valve flow path Valve flow path or cylinder Valve Hydraulic code symbol t 2-way, 2-position (2/2) Normally closed Unloading * VEH Normally open Unloading * VEK t 3-way, 2-position (3/2) Normally open Single-acting VE t 3-way, 3-position (3/3) Tandem center Single-acting VE losed center Single-acting VEG t 4-way, 2-position (4/2) rossover offset ouble-acting VEE loat offset ouble-acting VEM t 4-way, 3-position (4/3) Open center ouble-acting VE losed center ouble-acting VE Tandem center ouble-acting VE loat center ouble-acting VE T * VEH and VEK valve models require the use of tank port for dump or unloading. roduct spefications mps psi in 3 /min inrush holding 0-10, /60 Hz , Hz , / Hz 1.3/1.4.45/ , Hz Note: Seal material: una-n, olyurethane. IN43650 Valve plug included on remote mounted valves. T T T T T T T T ressure Maximum Hz mperage draw range oil flow

131 ustom build your modular valves VE imensions & options This is how a Solenoid Modular Valve Model Number is built up: 1 Valve low ath 2 low apacity 3 Voltage 4 ccessory Valves 5 Manifold VE-series ressure: 0-10,000 psi low max.: 920 in 3 /min Voltage: 24, 115, 230 V E Válvulas de control Electrodistributeurs Wegesitzventile 1 Modular valve code = 4/3 Open center = 4/3 losed center = 4/3 Tandem center = 4/3 loat center E = 4/2 rossover offset = 3/3 Tandem center G = 3/3 losed center H = 2/2 Normally closed K = 2/2 Normally open M = 4/2 loat offset = 3/2 Normally open 2 Oil flow capacity 1 = 920 in 3 per minute 3 Solenoid voltage 1 = 24 V, 50 / 60 Hz 2 = 230 V, 1 ph, 50 Hz 5 = 115 V, 1 ph, 60 Hz 6 = 230 V, 1 ph, 60 Hz VE series Example The VE is a modular valve with a 4-way, 3-position open center flowpath, 115 V, and an integrated pilot-operated check valve, for mounting on an Enerpac pump. olt Kit K-2 is included Gauge port 1/4"-18NT Modular Valve ump Mounted osition Relief Valve 1) add 1.85 inch for each ccessory Valve. Note: K-1 olt Kit is included with each modular valve ) 4 ccessory valves 000 = No accessory valves 100 = VS-11 Relief valve only 150 = VS-11 Relief valve and VS-51 3-way pilot operated check valve VE/VEG only 160 = VS-11 Relief valve and VS-61 4-way pilot operated check valve VE/VE/VE/VE only 500 = VS-51 3-way pilot operated check valve VE/VEG only 600 = VS-61 4-way pilot operated check valve VE/VE/VE/VE only 5 Manifold = No manifold = Remote mounted manifold = ump mounted manifold VE/VE/VE only Tank port 3/8"-18NT T /8"-18NT (2x) (4x) Modular Valve Remote Mounted T /8"-18NT (4x) 1.75 T Gauges and accessories ittings iferential pressure drop (psi) Options T ccessory Valves and olt Kits Use VS-11 relief valve to add system pressure control to VE-series valves. Use VS-51 3-way pilot operated check valve to convert 3-way VE-valve into load-holding valve. Use VS-61 4-way pilot operated check valve to convert 4-way VE-valve into load-holding valve. To install accessory valves to stack build modular valves use bolt kits: K-2 for 1 VS valve; K-3 for 2 VS valves ressure drop vs oil flow -/ -T /-T Oil flow (gal/min) Valves System

132 3-way directional manual control valves pplication & selection Shown: VM-2, VM-3 Reliable control of single-acting cylinders irectional control valves provide advance/hold/retract operation for use with single-acting cylinders Remote or pump mounting on most Enerpac pumps Linear cylinders Return line kit included with remote valves vailable locking option on V and VM-series valves for load-holding applications ower sources Valves V-series Manual operated 3-way, 2-position and 3-way, 3-position directional control valves for operation of single-acting cylinders. Remote mount valves include return line kit for connecting the valves to pump reservoir. pplication ump mounted valves provide centralized control of pump output for cylinder cycling. Remote mounted at any convenient point along the system where control of cylinders is needed. our V-15 Enerpac manual valves mounted on fixture to give independent control of several hydraulic circuits. Select the required center position Non-locking Use in simple clamping circuits. Has interflow between ports when shifted. Locking center or positive load holding without loss of pressure. ylinder travel can only resume by shifting valve from hold position. roduct selection losed center or multiple valve and cylinder operation. ll ports blocked in the center position. Tandem center or one or multiple cylinder operation. ump flow is directed back to tank in the center position. Valve type Valve Model Hydraulic mounting number symbol location Manual 3-way, 2-position (3/2) ump VM-2 Manual 3-way, 3-position (3/3) Tandem center ump VM-3 Tandem center Remote V-3 Manual 3-way, 3-position (3/3) Tandem center, ump VM-3L locking Tandem center, Remote V-3L locking losed center Remote V-15 losed center, Remote V-15L locking T T T T T

133 imensions & options V-series VM-2 ressure: 0-10,000 psi 5.12 low max.: 1040 in 3 /min /8"-18NT ø.34 (6x) E Vàlvulas de control istributeurs à 3 voies 3-Wege-Ventile VM-3, VM-3LV-3, V-3L V-15, V-15L ) ) ø.34 (5x) 3/8"- 18NT ) VM-3L only roduct specifications Model ressure Used for Schematic flowpath number range cylinder psi Manual 3-way, 2-position (3/2) dvance Hold Retract VM ,000 Single-acting 4.8 Manual 3-way, 3-position (3/3) VM ,000 Single-acting 4.6 T T V ,000 Single-acting 6.4 Manual 3-way, 3-position (3/3) VM-3L 0-10,000 Single-acting 8.6 V-3L 0-10,000 Single-acting 10.3 V ,000 Single-acting 6.4 V-15L 0-10,000 Single-acting ) ) /4"-20UN (2x) 3/8"-18NT T.75 1) V-3L and V-15L only ) T T T T lbs T Options Gauges and accessories Hoses and couplers ittings T Important Locking Valves or applications that require positive load holding, most VM and V valves are available with pilot operated check valve. This option provides hydraulic locking of the load until valve is shifted into retract position. To order this feature, place an L at the end of the model number. Valving help See asic System Set-up and Valve information in our Yellow ages. Valves System

134 4-way directional manual control valves pplication & selection Linear cylinders Shown: V-20, VM-4 Reliable control of double-acting cylinders irectional control valves provide advance/hold/ retract operation for use with double-acting or two single-acting cylinders Remote or pump mounting on most Enerpac pumps Return line kit included with remote valves vailable locking option on V and VM-series valves for load-holding applications ower sources Valves V-series Manual operated 4-way, 3-position directional control valves for operation of double-acting or two singleacting cylinders. Remote mount valves include return line kit for connecting the valves to pump reservoir. pplication ump mounted valves provide centralized control of pump output for cylinder cycling. Remote mounted at any convenient point along the system where control of cylinders is needed. Enerpac V-4 manual valves mounted to control hydraulic circuit on pallet fixture Select the required center position Non-locking Use in simple clamping circuits. Has interflow between ports when shifted. Locking center or positive load holding without loss of pressure. ylinder travel can only resume by shifting valve from hold position. roduct selection losed center or multiple valve and cylinder operation. ll ports blocked in the center position. Tandem center or one or multiple cylinder operation. ump flow is directed back to tank in the center position. Valve type Valve Model Hydraulic mounting number symbol location Manual 3-way, 2-position (3/2) Tandem center ump VM-4 Tandem center Remote V-4 Tandem center, ump VM-4L locking Tandem center, Remote V-4L locking losed center Remote V-20 losed center, Remote V-20L locking T T T T

135 imensions & options V-series ressure: 0-10,000 psi low max.: 1040 in 3 /min E Vàlvulas de control istributeurs à 4 voies 4-Wege-Ventile T T VM-4, VM-4LV-4, V-3L V-20, V-20L ) ) ø.34 (5x) /8"-18NT roduct specifications 1) VM-4L only VM ,000 ouble-acting 4.6 V ,000 ouble-acting ) ) Model ressure Used for Schematic flowpath number range cylinder psi dvance Hold Retract lbs Manual 4-way, 3-position (4/3) V ,000 ouble-acting 6.4 VM-4L 0-10,000 ouble-acting 8.6 V-4L 0-10,000 ouble-acting 10.3 V-20L 0-10,000 ouble-acting 10.3 T T T T T T T T /8"- 18NT /4"-20UN (2x) ) 1) V-4L and V-20L only T T T T Options Gauges and accessories Hoses and couplers ittings Important Locking Valves or applications that require positive load holding, most VM and V valves are available with pilot operated check valve. This option provides hydraulic locking of the load until valve is shifted into retract position. To order this feature, place an L at the end of the model number. Valving help See asic System Set-up and Valve information in our Yellow ages. Valves System

136 Linear cylinders ower sources Valves Sequence valves Shown: WV-5, MVM Sequence valves Sequence valves block the oil to a secondary hydraulic circuit until pressure in the primary circuit reaches a preset level. The sequence valves have a built-in check system to allow the oil to flow back without external piping. ressure settings for the V-2000 can be adjusted by screwing the slotted pin in or out. The pressure settings for the other models is adjusted by loosening the jam nut and turn the set screw to reach your setting. pplication The sequence valves can be mounted in-line or fixture mounted using mounting bolts. typical application for the sequence valve would be to build pressure within work supports before the swing cylinders are applied to the supported part, to prevent deflection in the part. Two WV-5 sequence valves used in conjunction with Enerpac W-series uto oupler to provide system automation ressure dependent sequence control MVM-5, WV-5 irect accurate pressure setting ressure setting between psi for secondary circuit is secured with lock nut Mounting holes on WV-5, manifold mounting ports on MVM-5 V-2000 irect accurate pressure setting ressure setting between psi for secondary circuit V-2000 lag indicator appears everytime the valve is operated MVM-5WV manifold ports ø.19 roduct selection G1/4" 1/8"-27NT /8" -27NT MV, WV, V-series ressure: 5000 psi low: in 3 /min max. E Válvulas de secuencia Valve de séquence olgeventil Options Gauges 154 MVM-5, WV-5 ressure drop vs oil flow ressure Maximum Maximum Model Oil ports Opening adjustment pressure oil flow number pressure range check valve psi psi in 3 /min psi lbs V /8"-27 NT MVM-5 G 1/4" WV-5 SE # Seal material: una-n. Manifold O-rings included with MVM-5. or manifold mounting installation information consult Enerpac for surface preparation SE #4 ressure drop (psi) Oil flow (in 3 /min) G1/4"

137 ilot operated check valves MV, V-series ilot ratio: 7:1 low: 10 gpm max. E Válvulas antiretorno pilotada lapets antiretour piloté Rückschlagventile To hold cylinder load and ensure remote unlocking ast check-off response Hardened seats ensure long life and positive pressure holding uilt-in accumulator to maintain system pressure Mounting holes Manifold mount body MVM-72 Shown: V-72 M Options ittings H G z 158 roduct selection ilot ccumulator Maximum Maximum Model Oil ports Optional ratio included oil flow pressure number charging tool for L GM psi lbs 7 : V-72 SE # : 1 L MV-722 G 1/4" WT : 1 L MV-7202 G 1/4" WT : MVM-72 G 1/4" 3.0 or more information on L-series ccumulators see page 150. MV-722, Model number K L G E H G L K G E roduct dimensions in inches [ ] V-72MVM z H manifold ports ø Seal material: una-n. Manifold O-rings included with MVM-72. or manifold mounting installation information consult Enerpac for surface preparation z G = ylinder advance = ylinder retract = ressure Z = ilot L E K E G H K L M V SE # MV G1/4" MV G1/4" MVM G1/4" MV and V-series ilot operated check valves check the oil flow with a built-in pilot circuit providing fast, automatic check-off for your workholding applications. The pilot operated check valves with built-in accumulator help to maintain system pressure due to minor oil loss. pplication dded capability to open with pilot pressure to allow cylinders to retract. y using a pilot operated check valve, cylinder retraction can be accomplished automatically without operator activity. 99_021 Valves System

138 low control valves V-series Linear cylinders Shown: V-1, V-2 Regulate the flow of oil oppet valve design for zero leakage olor coded flow indicator ree flow return ine metering capability Lockable Standard Viton seals Max. low: 10 gpm ressure: psi E Válv. reguladoras de caudal Valves de control débit Stromregelventile ower sources Valves V-series rovide repeatable oil flow control. The internal check valve allows metered flow in one direction and free flow in the opposite direction. recise control is achieved with a micro-meter style adjustment knob, which can be locked with the set screw. pplication Use V-series flow control valves in-line with the Enerpac WE-series workholding pump to protect your from damage due to high flow rates. In-line installation of a V-1 flow control valve. ressure drop (psi) V-1, -2 ressure drop vs oil flow low setting (in turns) low direction Oil flow (gal/min) roduct selection 15 V-1, -2 Options ittings 158 High pressure filter ø 1.14 Maximum ressure Oil Model low path Maximum oil flow range ports number pressure drop gpm psi psi lbs low control valves SE #4 V V-1 SE #4 V-2 G 1 /4" G 1/4" V Seal material: Viton

139 ressure reducing valves RV-series ressure: 5000 psi low: 417 in 3 /min E Válv. reguladora de presión Valve de pression réglable ruckreduzierventil recise control of hydraulic pressure Tool adjustable knob can be locked recise control of pressure G1/4" oil connection Remote mount Shown: RV-3 R Options V-Modular valves ressure switches Tie rod kits roduct selection RV-3, -4 RV-3T, -4T Mounting hole Mounting djustable Maximum Model Oil Maximum style pressure pressure number ports oil flow range psi psi S in 3 /min lbs Remote RV-3 G1/ artridge RV-3T Remote RV-4 G1/ artridge RV-4T , ort for pressure switch M24x1, RV series These valves regulates system pressure for all subsequent valves, according to the adjusted pressure. Maintains a constant pressure in a secondary circuit. Includes a check valve that prevents pressure drop on secondary side. pplication Used when a hydraulic supply with a higher pressure (primary side) must also be used for another circuit with a lower pressure (secondary circuit). RV-3 and 4 are for remote mounting. The cartridge from RV-3 and 4 can be removed from manifold for direct integration into gundrilled fixture. Order the cartridge separately as RV-3T or RV-4T. 99_101 Valves System

140 ccessory valves pplication & selection Shown: HV-1000, V-17, V-10, V-12, V-152 Your hydraulic control solution Regulate oil flow or system pressure ll valves feature NT or SE porting to insure against leakage at rated pressure an easily be installed in any system Linear cylinders ll valves are painted, coated or plated for corrosion resistance roduct selection Valve type Maximum Model Oil pressure number ports ower sources Valves ccessory valves Enerpac accessory valves are available in a wide variety and many configurations to control hydraulic pressure or oil flow. These valves are used in conjunction with other valves and system to provide full automation and control. pplication ccessory valves are used to automate clamp cycles, prevent pressure loss and provide additional operator and component safety. V-17 Safety check valve installed on a fixture. psi Holding valve, air pilot 3000 HV /8" NT Holding valve, modular 3000 MHV-1 1/8" NT ressure limiting valve 3000 LV /8" NT Manual shut-off valve 5000 V-12 SE #4 uto-damper valve 10,000 V-10 1/2" NT Safety check valve 10,000 V-17 3/8" NT ressure relief valve 10,000 V-152 3/8" NT roduct specification HV-1000 ir pilot holding valve Holds fluid under pressure offering independent control of different branches of the same fixture Valve can control the pilot air and the booster in sequence Max. oil flow 305 in 3 /min Works with the V-42 fourway air valve and a ir inlet booster /4"-18 NT MHV-1 Modular holding valve llows separate operation of clamping fixtures with a single power source Ideal for applications when fluid feed lines are.75 impractical. If system pressure is interrupted, the MHV-1 will hold the pressure beyond the valve Max. oil flow 305 in 3 /min To release system pressure, rotate valve handle in either direction 90 to release and retract system pressure 1/8"-27NT b.28 1/8"- 27NT 1/8"- 27NT

141 imensions & options MHV, HV, LV, V-series LV ressure limiting valve llows precise control of pressures reaching specific clamps When pressure build-up reaches a preset level, the valve closes, stabilizing pressure to that section of the fixture ressure adjustment between 200 to 1500 psi Max. oil flow 305 in 3 /min djustable pressure screw ressure: 0-10,000 psi low max.: in 3 /min E Válvulas de control Valves de contrôle Regelventile 1/8"-27NT (2x) 1.20 V-12 Manual shut-off valve all type valve can be used for the master system shut-off or for isolating separate circuits on a fixture Viton seals standard Straight through design for easy system plumbing and installation ully open allows high flow return of oil Max. oil flow 732 in 3 /min V-10 uto-damper valve To protect gauge during high cycle applications reates a flow resistance when load is released suddenly No adjustments are necessary its directly into G-series gauge adaptor V-17 Safety check valve Ruggedly built to resist shock and operate with low pressure drop loses smoothly without pounding Max. oil flow 1830 in 3 /min V-152 ressure relief valve Limits pressure developed by the pump in hydraulic circuit, thus limiting the force imposed on other ,000 psi adjustment range; ± 3% repeatability Valve opens whenever preset pressure is reached. To increase pressure setting, turn handle clockwise Max. oil flow 1830 in 3 /min Includes 3 ft. return line hose kit /2" -14NT /8" -18NT 7.62 max ø /8" -18NT (3x) SE # UN Options V-42 ir valve 142 Gauges and adaptors 154 Hoses and couplers ittings Important Valving help See asic System Set-up and Valve information in our Yellow ages. Valves System

142 ir valves and accessories V, V, VR, RL-series Linear cylinders ower sources Valves Shown: V-42, VS-42 ir valves Enerpac s line of directional air valves and accessories complete your workholding system. Used to control air operated hydraulic units, they increase your productivity and efficiency. pplication V-series directional air valves provide either manual or electric control to air operated hydraulic units. ccessories such as rapid exhaust, check valves, silencers and regulators complete the air control system. ccessory valves provide greater safety and more efficient clamping cycles Recommended for use with all air powered units irectional valves to control booster and pump air supply Remote air valve permits either hand or foot operation Important Valving help See asic System Set-up and Valve information in our Yellow ages. 184 To control and regulate air supply V-42 Manual operated air valve 5-way, 2-position or control of boosters Viton seals standard VS-42 Solenoid operated air valve 5-way, 2-position or control of pump and boosters air supply Viton seals standard Solenoid: 120 V, 50/60Hz mperage: inrush.11 mps, holding.07 mps Maximum cycle rate: 600 cycles per minute VR-3 Rapid exhaust valve Enables booster to advance and retract faster Instantly exhaust air supply from booster to atmosphere V-19 ir check valve revent rapid drop of air pressure to the booster in the event of sudden loss of input air RL-102 Regulator-ilter-Lubricator Regulates air pressure ilter air input Lubricates air motors with a fine oil vapor mist Maximum air flow 48 scfm V /8"-18NT (5x) roduct selection Maximum Model pressure number psi ir valves V VS VR V-19 ccessories RL V VS /8" -18NT ir ressure: psi E Válvulas de aire Valves à air Luftventile Options Gauges and adaptors Hoses and couplers ittings /8"-18NT (5x) VR-3 RL-102 3/8"-18NT (3x) /8"-18 NT

143 WV-5, V-72, RV-3 Valves Valve utaways WV-5 The opening point is set by the adjustment spring. Incoming pressure is blocked by the valve spindle in the orifice plate. When opening pressure is reached, the spindle is pushed up until fluid will pass. The system pressure level is maintained as pressure builds in the downstream circuit. Reverse flow is through a reverse check valve. ylinder V-72 System pressure enters through the "ump" port, flows through the check seat and past the check valve into the cylinder circuit. When system pressure drops, the check ball closes off the seat, blocking flow. To release the cylinder pressure, the "ilot" port is pressurized, and the pilot piston pushes the check ball off of the seat, allowing reverse flow. RV-3 check ball is held off of the check seat by a spring loaded spindle. The spring setting determines the closing point of the valve. s pressure builds in the cylinder side of the circuit, the spindle is lifted, and the check seats. losing off further flow through the valve provides a reduced pressure to the cylinder. lamps System lamps lamps umps Retract ilot Valves System ump

144 System 145 System omponents rom the simplest to the most complex hydraulic system, Enerpac s system help you complete your design. Gauges, pressure switches, couplers and hoses are simple but necessary items for any hydraulic system, and Enerpac can provide the full range. nd more specialized such as accumulators and automatic coupler systems ensure that whatever your need, Enerpac can help. Technical support Refer to the Yellow ages of this catalog for: Safety instructions asic hydraulic information dvanced hydraulic technology MS (lexible Machining Systems) technology onversion charts and hydraulic symbols

145 uto-coupler systems Rotary couplers ccumulators ressure switches igital pressure gauges Gauge accessories Manifolds, couplers, hoses, tubing High pressure filters, hydraulic oil series W, W W I SK ressure gauges G R RV G G, GS V, NV, H/R HLS, T L, H High pressure fittings Z, Z page

146 uto-coupler systems pplication & selection Linear cylinders ower sources Valves System Shown: W-62, W-62 The automatic coupler system allows connection and disconnection of palletized hydraulic circuits. This system eliminates the direct intervention of an operator, allowing hands free, safe functioning of the process. Typical systems include one base station located at the load/unload station operating one or more pallet receivers. -2 ontrol shown with ZW4020HJ-HLT12U300 ump. 4-way auto coupler is connected to the receiver, mounted on the side of a palletized fixture or automated coupling of hydraulic circuits on palletized systems Sensing feedback of coupler position allows for fully automated applications Horizontal or vertical mounting for flexible installation on machine tools vailable as 2 or 4 port model to provide a solution to various hydraulic circuit needs djustment stroke allows clearance for pallet indexing oupler elements supplied with air blow-off nozzles to prevent damage from contamination utomatic coupler control box provides pre-programmed safety features to insure proper sequencing of automatic coupler and fixture operations -2, utomatic 147 coupler control box rovides automatic or manual control of your 2 or 4 port auto coupler station. anel view informs when auto coupler is retracted or advanced and whether fixture is unclamped or clamped. Includes 2 pressure switches, 3 proximity switches. ressure switches monitor clamping and unclamping system pressure. roximity switches inform L when auto coupler is advanced or retracted and when pallet is in position for the auto coupling. Integrates with ZW4020HJ-HLTU300 and ZW4020HJ-HLT300 pumps. roduct selection Station Model djustable Oil Maximum position number 1) stroke capacity oil flow 2) in 3 in advance retract in 3 /min 2 port auto coupler ase W ase W-82* allet W-62 4 port auto coupler ase W-64* allet W-64* 1) or additional pallet clearance, W-82 long stroke model are available. 2) Maximum oil flow of coupler elements is 4.3 GM. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design.

147 imensions & options W, W, -series roduct specifications Model Required radial Operating Hydraulic nozzle ir blow-off Recommended number alignment accuracy pressure model number fitting model No. alignment in psi (included) (included) tool 2 port auto coupler W-62 ± Z-2050 T-1 W-82 ± Z-2050 T-2 W-62 ± M-6 Z-2050 T-1 4 port auto coupler W-64 ± Z-2050 T-1 W-64 ± M-6 Z-2050 T W-62, -82W SE # V 1 E 3.04 W W-64W-64 V V SE # SE #4 SE # E roduct dimensions in inches [ ] V SE # SE #4 W Model number Operator Station Model 1 E V 1) W 2) number max. for mounting bolts thread x length lbs 2 port auto couplers W UN x W-82* UN x W UN x port auto couplers W-64* UN x W-64* UN x utomatic coupler control box 3) ) Mounting bolts are not included. 2) rill dowel pin holes after installing W. * This product is made to order. lease contact Enerpac for delivery information before specifying in your design Voltage / urrent utomatic oupler ontrol ox V / 10 Note: Enclosure rating NEM onnection: 2-4 ports Stroke: inch ressure: psi E copladores automáticos oupleurs automatiques utomatische Kupplungen 157 T series alignment tool Use the T series alignment tool to adjust the position of the pallet station in relation to the base station. Hoses Options High pressure filters 156 Important Use high pressure filters on pallet station outlet ports, to avoid contamination of pallet mounted valves and cylinders. To guarantee leakage free connections, accurate positioning of the pallet and base stations is crucial. arefully read the instruction manual included with the product. o not couple or uncouple with the hydraulic nozzles under pressure. This could damage the internal coupler seals. o not exceed maximum flow and pressure. 147 System

148 Rotary couplers pplication & selection Linear cylinders Shown: RV-221, R-111 ermanent hydraulic connection on indexing and rotating work stations High rotation per minute Low starting torque Internal oil bearings for increased lifetime Manifold mounting adaptors available to reduce fixture plumbing Starting torque and speed diagrams ressure vs starting torque ower sources Valves System Rotary couplers are specially designed unions to transfer pressurized fluid from a stationary supply line to a rotating device. Used for workholding or clamping device such as fixtures installed on rotating index tables. Rotary table ixture nti-rotation key RV-221 In this application eight RV-221 rotary couplers are installed to power the individual presses of an eight station rotary press table. ressure (psi) Ë R Starting torque (in.lbs) Ë Max. operating speed = 30 RM. ressure (psi) Ë ressure vs starting torque RV RV Starting torque (in.lbs) Ë ressure (psi) Ë Oil loss RV-221 = 1.22 in 3 /h, RV-441 = 2.44 in 3 /h roduct selection ressure vs speed RV-221 RV Á Speed (RM) No. of Model Operating Maximum Starting radial number 1) pressure speed torque passages range RM in.lbs psi 1500 psi 5000 psi 1500 psi 5000 psi 1 R RV RV ) efore selecting, note the starting torque and speed diagrams above. Manifold mounting adaptor Mounting adaptor M-2, M-4 Mounts onto end of two and four passage rotary unions. llows O-ring mounting directly to fixture. roduct selection Number Model Operating Used of radial number pressure with passages range psi 2 M RV M RV

149 imensions & options R, RV-series R-111 roduct dimensions in inches [ ] 1.09 assages: 1-4 lines Speed: RM max. ressure: psi ø.31 3 /8" Tube flare un E coplamientos giratorios Joints tournants rehdurchführungen SE# M-2 RV SE # UN (2x) Ø 3.94 Ø UN 2.56 Ø SE # SE #4 M-4 RV SE #4 (4x) SE #4 (4x) Ø 4.72 Ø 3.94 Ø 2.83 Ø UN (4x) 2.83 Ø SE #4 (4x) UN (4x) Options ittings ouplers Hoses and couplers Important efore selecting, note the pressure versus starting torque diagrams. Rotary couplers must be mounted in the center of rotation of the installation. nti-rotation keys should be utilized. or proper application, clamp force, pressures and timing, consult Enerpac for support. System

150 ccumulators pplication & selection Shown: M-1, S-22, L-201 ccumulators maintain circuit pressure Ideal for high frequency and rapid discharge applications L series are pre-charged to 1450 psi orrosion resistant bodies on L series Linear cylinders Spring actuated accumulator for M-1 High energy storage capacity in a compact package ccumulator coupler packages compact design for easy use of accumulators ower sources Valves System Enerpac accumulators supply auxiliary pressure to dampen shock loads or to compensate pressure drop in applications where system pressure needs to be maintained. ccumulator packages will help maintain system pressure to your fixture when separated from the hydraulic source. The gauge will display system pressure after the circuit is disconnected. ccumulator applications: - Energy storage - ircuit pulsation dampening - Thermal expansion compensation ulse dampening Thermal expansion S-202 ccumulator package used to maintain pressure on a machine tool fixture t Single design accommodates both single-acting or double-acting circuit Relief valve fitted and ball check shut-off Glycerin-filled gauge included Supplied standard with one male coupler (H-652) Optional manifold mounting. O-ring seals located on bottom of block only for single-acting circuit ccumulator coupler package circuits Single-acting circuit S series roduct selection R R Operating Model Max. Gas re-charged Usable pressure number rated volume nitrogen oil oil pressure capacity volume in 3 psi in 3 in 3 psi at 5000 psi re-charged accumulators ccumulator coupler packages Uncharged accumulators ouble-acting circuit S series Single- or double-acting circuit M L L L S S uses W-502 or W-5010 R R ) W ) W ) See pre-charge chart on the next page for hydraulic operating pressures

151 imensions & options, W-series Recommended pre-charge Operating Model Nitrogen Usable oil pressure number pressure capacity 1) psi psi in W W W W W W ) t maximum operating pressure. W ø G ressure: psi Oil volume: in 3 Gas volume: in 3 E cumuladores ccumulateurs ruckspeicher M-1 L harging valve G G 2.50 (1) H-654 included E L-201, 502 roduct dimensions in inches [ ] G G E E harging valve Model E G Recommended number charging tool re-charged accumulators M NT 2.1 L SE #4 WT L SE #6 WT L G3/8" WT re-charged accumulator coupler packages S G1/4" WT S G1/4" WT SE #4 WT Uncharged accumulators W UN 2.75 SE #8 WT W UN 2.75 SE #8 WT S 1.38 øe Gas valve ø (3x) G1/4" ) ) Manifold hole should not exceed Ø.30 inch when port is utilized (1) H-652 included.71 G1/4" (4x) 2.50 lbs Options W-50 Mounting block or W series accumulators ouplers 156 High pressure filters Hydraulic oil ittings UN Important Enerpac high pressure in-line filters are required for use with these control units to prevent damage that can be caused by contaminants that have penetrated your hydraulic fluid system. Order an additional male coupler (H-652 or H-654) for use in doubleacting hydraulic circuits. System

152 ressure switches I, SK-series Linear cylinders Shown: SK-8, I-51 Reliable electrical control of hydraulic power ompact design minimizes space requirements on fixture Switch is easily adjustable to meet system requirements ressure: psi ccuracy: 2% E resostatos ressostats ruckschalter ower sources Valves System SK2 Enerpac remote mounted pressure switches monitor the hydraulic system to determine any change of pressure. The signal can then be used to control the pump, or other peripheral devices. I-series The I-series electrical pressure switches provide pressure readings for monitoring and/or control of hydraulic system pressure in workholding systems. Integrated in your hydraulic system, the pressure switch can be used to automate your clamping cycles I series SK-8, mounting dimensions.24 ø Hydraulic connection 1.10 M4 min I-30, 31, I SE #4 I-30, NT I-31, hex roduct selection Options ittings Gauges Important o not exceed the maximum pressure. djustable Electrical Model eadband Switch Oil pressure specifications number point port range repeatability psi at 50/60 Hz psi % of range lb Electrical pressure switches I /-2 SE # I / NT I /-2 SE # I / NT SK /-2 Manifold mount SK /-2 Manifold mount 0.8 1) Electrical harness included with kit

153 GR-series igital hydraulic pressure gauge ressure: 0-15,000 psi ccuracy: ± 0.2% Voltage: 3 V (battery) Easy and precise pressure monitoring GR-1 Rated for system pressure up to 15,000 psi Shown: GR-1 E Manómetros digitales isplays in psi, bar, Ma, ka, mbar/ha Manomètres digitaux igitale Manometer Zero reset ensures that gauge reads actual system pressure rotective cover can be ordered separately Options ittings Gauge adaptors Important o not exceed the maximum pressure. Gauges can be easily plugged into the hydraulic system using G-3 gauge adaptor. rotective over its over face of gauge for protection in harsh environments. Order Model No. GR-1. Replacement attery Spare battery for preventative maintenance program. attery has 1400 hours of life in continuous operation. Order Model No. GR-1 roduct selection 3 V battery included GR hours continuous operation in standard mode - I65 protection Two modes - utomatic shut off (15 min) - ontinuous display 355 ace Rotation ressure Model ressure ressure ressure ressure rating number rating rating rating rating psi bar ka Ma mbar NT Enerpac digital pressure gauges offer greater accuracy and are easier to read than conventional dial gauges, greatly enhancing your ability to monitor and control hydraulic system pressure. GR-1 Remote Operation attery operated for additional flexibility. Includes maximum and minimum pressure capture. GR-1 System Range Interval Range Interval Range Interval Range Interval Range Interval lbs 0-15,000 3 GR , ,

154 ressure gauges and accessories pplication & selection Linear cylinders ower sources Valves System Shown: GS-2, G-2512L, GS-3 G Gauge accessories for easy installation Needle valves providing positive shut-off 303 stainless steel stem (NV-25) Snubber valves to control pressure surges between gauge and hydraulic system Gauge adaptors male end screws into pump or cylinder, female port accepts hose or coupler, the third port is for gauge connection M-25NG for panel mounting of 2.50 inch diameter gauges roduct selection Enerpac gauges provide a safe and inexpensive monitoring system for your hydraulic circuit Highly reliable and accurate pressure sensing ± 1.5% accuracy of full scale ll pressure sensing parts sealed and dampened by glycerine for long life Includes safety blow-out disk and pressure equalizing membrane to prevent overpressurization opper alloy, coiled safety ourdon tube for 1000 psi and higher ual psi and bar scale readings, 2.5 inch gauge face ressure gauge ressure Model SI ar G mounting style range number graduation graduation Major Minor Major Minor psi bar psi psi bar bar in in in ressure gauge Lower mount G-2509L /4" NT G-2510L /4" NT G-2511L /4" NT G-2512L /4" NT G-2513L /4" NT G-2514L /4" NT G-2515L /4" NT G-2516L /4" NT G-2517L /4" NT 0-10, G-2535L /4" NT G-2514SL SE# G-2516SL SE# G-2517SL SE#4 0-10, G-2535SL SE#4 ressure gauge Rear mount G-2531R /4" NT G-2534R /4" NT 0-10, G-2537R /4" NT G G-2531SR SE # G-2533SR SE # G-2534SR SE #4 0-10, G-2537SR SE # R /8" NT R /8" NT R /8" NT 0-10, R /8" NT

155 imensions & options G, G, V, NV, M-series ressure: 0-10,000 psi ccuracy: 1.5% /full scale Gauge face: ø 2.5 inch G-1 G-2, -3, -4 E Manómetros Manomètres E Manometer E G-918 GS-2, -3 S1 S S S E NV-25,V-9 M-25NG S1 120 E E S roduct dimensions in inches [ ] Gauge Max. Model imensions port pressure number NT psi E S S1 Gauge adaptors 1/2" 10,000 G /2"NT 3/8"NT 3/8"NT /2" 10,000 G /2"NT 3/8"NT 3/8"NT /4" 10,000 G /4"NT 3/8"NT 3/8"NT /2" 10,000 G /2"NT 1/4"NT 3/8"NT 1.25 Swivel gauge adaptor 1/2" 10,000 G /2"NT 1/2"NT Gauge shut-off valves 1/4" 10,000 NV /4"NT 1/4"NT /2" 10,000 V /2"NT 1/2"NT Gauge snubber valves 1/4" 5000 GS /4"NT SE #4.75 1/4" 5000 GS /4"NT G1/4".75 Options Hoses and couplers 156 igital gauges ressure switches V-10 uto amper valve 140 Important o not exceed maximum pressure. Gauge snubbers or needle valves are recommended for high cycle applications. o not keep gauges under permanent pressure. The use of shut-off valves is recommended. or basic system set-up information, refer to our Yellow ages section. System lange mounting for panel mounting of G series gauges M-25NG

156 Manifolds, couplers, hoses, tubing Linear cylinders ower sources Valves System Shown: HLS, H, H, R, L, T, -series Use genuine Enerpac manifolds, couplers, hoses and tubings to connect your workholding cylinders or fixtures to the hydraulic power source. series, Manifolds or multiple hydraulic line connections at one central location directing oil to or from a pressure source. H/R series, ouplers Quick disconnect low leakage couplers for easy connection of hydraulic circuits. HLS series, Hoses High pressure hydraulic hoses, featuring a heavy-duty protective plastic coating. T series, Tubing High pressure steel tubing, available in 5 ft. lengths. Options ittings 158 Manifolds Easy to connect Mounting holes on all models ouplers Spee--oupler design allows cylinder to be connected and disconnected in seconds or more safety: couplers cannot be connected or disconnected while under hydraulic pressure Hydraulic hoses and tubings Heavy-duty coating for abrasion resistance Resistant against mineral based hydraulic oil as well as water glycols High pressure steel tubing for permanent installations -60, -61, -64, -65 H-650 H-652 H-654 R-650 E Manifolds dimensions in inches [ ] ouplers Hoses Male coupler half NT Male coupler half G1/4 S Male coupler half SE # UN emale coupler half NT Important E o not exceed the maximum pressure. Inspect hoses and tubing frequently and replace as required UN E SE #4 Number Model 1 2 E 1 2 of ports number 2 x SE # SE # SE # NT NT NT Length Model number Internal diameter Maximum pressure ft in psi 1/4", 37 flare 1 HLS HLS HLS HLS HLS HLS /8" NT 3 H ,000 6 H , H ,000 Tubing Length Model Internal External Maximum number diameter diameter pressure ft in in psi 5 T lbs

157 High-pressure filters, hydraulic oil High-pressure filters Keep your hydraulic system clean leated stainless steel wire mesh screen construction provides large filter area in a compact size Rated for full system pressure up to 5000 psi i-directional design allows filtration of oil in either flow direction Two piece body construction for easy replacement of filter elements High flow rates are obtainable with a minimum pressure drop E Mangueras, iltros coplamientos, ceite lexibles, iltres Raccords, Huile Schläuche, ilter Kupplungen, Öl Threaded port connections on each end simplify installation Hydraulic oil Ensures effective lubricity rotects essential parts iltration 20 micron filter provides the longest service life before element replacement 10 micron filter recommended for more sensitive hydraulic L series 1.50 High in line pressure filters Model iltration ilter element set number micron Hydraulic oil Gal.25 H H H H-104 Note: Viscosity index: 100 min #4 SE O-ring oss Nominal bsolute lbs ressure drop (psi) 0 <12,000 S.U.S /165 S.U.S /45 S.U.S ressure drop vs oil flow L-2101 (10 micron) L-2201 (20 micron) Oil flow (gal/min) L L-2101K.4 L L-2201K.4 ontents Model Specifications number genuine Enerpac hydraulic oil.88 lash,.o our point -25 niline point 210/220 High-pressure filters ompact in line high pressure filters prevent chips and debris that have entered the hydraulic fluid system from damaging hydraulic system. Hydraulic oil Use only genuine Enerpac hydraulic oil to guarantee optimal performance and long life of your hydraulic equipment. Options ittings 158 Important o not exceed the maximum pressure. Hydraulic power is distributed by manifolds and transported by hoses and tubing System

158 High ressure ittings Selection & dimensions Shown: Z-2023, -2054, roper connection for hydraulic Male and female S, UN, NT threaded fittings in common sizes allow easy connection of all. Z and Z-1000 models are 10,000 psi maximum pressure Z-2000 models are 5000 psi maximum pressure ower sources Questions? all Spectrum Supply at or System custser@spectrumsupply.com Linear cylinders Valves itting are used to connect all cylinders,, power sources, tubes, gauges and hoses in a hydraulic system. Enerpac fittings provide flexible, safe and leakfree connections. Multiple hydraulic line connections are easily installed with Enerpac fittings and manifolds. roduct selection rom To Max. Model imensions pressure number psi dapters emale Male 1/4" NT 1/8" NT 10,000 Z /4" 1/8" NT 1/4" NT 3/8" NT 1/4" NT 10,000 Z /16" 1/4" NT 3/8" NT 1/2" NT 1/4" NT 10,000 Z /8" 1/4' NT 1/2" NT 1/2" NT 3/8" NT 10,000 Z /8" 3/8" NT 1/2" NT 1/4" NT SE # Z /8" 3/4"-16 1/4" NT 3/8" NT SE # Z /8" 3/4"-16 3/8" NT Reducers emale Male 1/4" NT 3/8" NT 10,000 Z /16" 1/4" NT 3/8" NT 1/4" NT 1/2" NT 10,000 Z /8" 1/4" NT 1/2" NT SE #6 SE # Z /16" 3/4"-16 9/16"-18 NT Male Nipples 1/4" NT 1/4" NT 10,000 Z /16" 1/4" NT 1/4" NT 3/8" NT 3/8" NT 10,000 Z /4" 3/8" NT 3/8" NT 3/8" NT 3/8" NT 10,000 Z /4" 3/8" NT 3/8" NT 3/8" NT G1/4" 10,000 Z /4" 3/8" NT G1/4" NT emale onnectors 1/4" NT 1/4" NT 10,000 Z /4" 1/4" NT 1/4" NT 3/8 NT 1/4" NT 10,000 Z " 3/8" NT 1/4" NT 3/8" NT 3/8" NT 10,000 Z /16" 3/8" NT 3/8" NT 1/2" NT 3/8" NT 10,000 Z mm 1/2" NT 3/8" NT NT Elbows 1/4" NT 1/4" NT 10,000 Z /4" NT 1/4" NT 3/8" NT 3/8" NT 10,000 Z /8" NT 3/8" NT NT Tee 1/4" NT 1/4" NT 10,000 Z /4" NT 1/4" NT 3/8" NT 3/8" NT 10,000 Z /8" NT 3/8" NT NT ross 3/8" NT 3/8" NT 10,000 Z /8" NT 3/8" NT

159 Selection, dimensions & options Z, Z-series roduct selection rom To Max. Model imensions in inches pressure number ressure: 0-10,000 psi Threads: NT, UN, S or tubing:.25 inch / 8mm psi dapters Male emale 1/8" NT SE # Z /16" 1/8" NT 7/16"-20 1/4" NT SE # Z /16" 1/4" NT 7/16"-20 1/4" NT G1/4" 10,000 Z /4" 1/4" NT G1/4" SE #4 1/8" NT 5000 Z /16" 7/16"-20 1/8" NT SE #4 1/4" NT 5000 Z /4" 7/16"-20 1/4" NT SE #2 SE # Z /16" 5/16"-24 7/16"-20 SE #6 1/4" NT 5000 Z /4" 9/16"-18 1/4" NT SE #8 1/4" NT 5000 Z /8" 3/4"-16 1/4" NT SE #8 3/8" NT 5000 Z /8" 3/4"-16 3/8" NT G 1/8" 1/8" NT 5000 Z /4" G 1/8" 1/8" NT G 1/8" 1/4" NT 5000 Z /4" G 1/8" 1/4" NT G 1/8" #4 SE 5000 Z /16" G 1/8" 7/16"-20 G 1/4" 1/4" NT 5000 Z /8" G 1/4" 1/4" NT G 1/4" #4 SE 5000 Z /4" G 1/4" 7/16"-20 Straight union SE #4 SE # Z /16" 7/16"-20 7/16"-20 SE #6 SE # Z /16" 9/16"-18 9/16"-18 SE #8 SE # Z /8" 3/4"-16 3/4"-16 Straight union to tube ends ø.25 ø Z-2033* /16" 7/16"-20 7/16"-20 ø.25 ø Z-2013** /16" ø.25** ø.25 daptors to tube end Male Tube size 1/8" NT ø R-1054* /2" 1/8" NT ø.25 1/4" NT ø Z-2020* /16" 1/4" NT ø.25 1/4" NT ø Z-2072* /16" 1/4" NT ø.375 1/4" NT ø Z-2012** /16" 1/4" NT ø.25 3/8" NT ø Z-2061* /4" 3/8" NT ø.25 3/8" NT ø Z-2068* /4" 3/8" NT ø.375 SE #2 ø Z-2025* /16" 5/16"-24 ø.25 SE #4 ø Z-2019* /16" 7/16"-20 ø.25 SE #4 ø Z-2001** /16" 7/16"-20 ø.25 SE #6 ø Z-2059* /16" 9/16"-18 ø.25 SE #8 ø Z-2039* /8" 3/4"-16 ø.25 SE #8 ø Z-2070* /8" 3/4"-16 ø.375 G1/8" ø Z-2053* mm G1/8" ø.25 G1/4" ø Z-2054* mm G1/4" ø.25 G1/4" ø Z-2064* mm G1/4" ø.375 Elbow to tube end Male Tube size 11/8" NT ø Z-2074* /8" NT ø.25 1/4" NT ø Z-2073* /4" NT ø.25 1/4" NT ø Z-2072* /4" NT ø.375 1/4" NT ø Z-2076** /4" NT ø.25 SE #2 ø Z-2024* /16"-24 ø.25 SE #4 ø Z-2035* /16"-20 ø.25 SE #4 ø Z-2002** /16"-20 ø.25 SE #8 ø Z-2071* /4"-16 ø.375 G1/8" ø Z-2051* G1/8" ø.25 G1/4" ø Z-2052* G1/4" ø.25 ø.25** ø Z-2014** ø.25** ø.25 E coplamientos Raccords Verschraubungen Options Gauges 154 Manifolds, couplers, hoses, tubing 156 Important o not exceed the maximum pressure. Use fittings and tubing in high cycle applications and areas having excessive heat or weld splatter. To seal NT threads use anaerobic thread sealers or Teflon paste. apply Teflon tape one thread from the end of the fitting, to prevent it from winding up in the hydraulic system. High presure hydraulic fittings allow connection of many with minimum effort. System *lared **lareless

160 High pressure fittings Selection & dimensions Z, Z-series ressure: psi Threads: NT, UN, S or tubing:.25 inch / 8mm roduct selection rom To Max. Model imensions in inches pressure number E coplamientos psi Linear cylinders ower sources Valves System Raccords Verschraubungen Options Manifolds, couplers, hoses, tubing 156 Important o not exceed maximum pressure. Use fittings and tubing in high cycle applications and areas having excessive heat or weld splatter. High pressure fittings enable the design of hydraulic systems to meet a variety of applications. / / Swivel banjo S to tube Male Tube size G1/4" ø 8mm 10,000 Z G1/4" ø 8mm Union tee ø.25 ø Z-2021* /16"-20 ø.25 ø.25 ø Z-2015** /16"-20 ø.25 ranch tee Male Tube size SE #4 ø Z-2036* /16"-20 ø.25 SE #4 ø Z-2004** /16"-20 ø.25 Swivel T-banjo S to tube Male Tube size G 1/4" ø 8mm 10,000 Z G 1/4" ø 8mm ross ø.25 ø Z-2034* /16" 7/16"-20 ø.25 ø.25 ø Z-2016** /16" ø.25 ø.25 SE lug SE # Z /16"-20 SE # Z /16"-18 SE Hex lug SE # Z /8" 3/4"-16 Nut and Sleeve for Tubing ø Z-2037*.61 9/16" 37 ø.25 ap for Tubing ø Z-2038*.67 9/16" 37 ø.25 ø Z-2017**.73 9/16" ø.25 ø.25 ø Z-2011*.81 11/16" 37 ø *lared **lareless

161 The Enerpac Yellow ages Enerpac Yellow ages stand for Hydraulic Information! Index Safety instructions page If selecting hydraulic equipment is not your daily routine, then you will appreciate these pages. The Yellow ages are designed to help you work with hydraulics. They will help you better understand the basics of hydraulic system set-ups and the most commonly used hydraulic techniques. y making an educated selection of equipment, you will receive greater benefits from your hydraulic system. Take the time to go through these Yellow ages and you will benefit even more from Enerpac hydraulic workholding. GLOL LIETIME WRRNTY STTEMENT Visit our web site for the complete Global Lifetime Warranty or call your uthorized Service enter. Enerpac products are warranted to be free of defects in materials and workmanship. ny product that does not conform to specification will be repaired or replaced at Enerpac s expense, anywhere in the world; simple as that! This warranty does not cover ordinary wear and tear, abuse, misuse, alterations, or the use of improper fluids. etermination of the authenticity of a warranty claim will be made only by Enerpac or its uthorized Service enters. Enerpac is certified for several quality standards. These standards require compliance with standards for management, administration, product development and manufacturing. ISO 9001 REGISTERE UL approved ll electrical used on Enerpac products carry the UL rating when possible. Enerpac worked hard to earn the quality rating ISO 9001, in its ongoing pursuit of excellence. asic hydraulics asic system set-up lamping technology utting tool technology onversion factors and hydraulic symbols Valving technology lexible machining systems onverting from mechanical clamping to hydraulic clamping anadian Standards ssociation Where specified, Enerpac electric pump assemblies meet the design, assembly and test requirements of the anadian Standards ssociation roduct esign riteria ll hydraulic are designed and tested to be safe for use at maximum 350 bar/5,000 psi pressure unless otherwise specifically noted. EM irective 89/336/EE Where specified, Enerpac electric power pumps meet the requirements for Electromagnetic ompatibility per EM irective 89/336/EE. World Standard Guarantee ll Enerpac products are guaranteed against defects in workmanship and materials for as long as you own them. Replace worn or damaged parts with genuine Enerpac parts. These are designed to fit properly and withstand rated loads. E Marking & onformity Enerpac provides a eclaration of onformity and E marking for products that conform with the European ommunity irectives

162 Safety instructions orrect use of hydraulic power Linear cylinders ower sources Valves System Hydraulic clamping can increase your machine shop s efficiency by reducing setup time. ower clamping can also maximize output by reducing employee lost time due to the injuries that can occur with manual clamping. lthough hydraulic operation moves the control of the clamping fixture to an area of greater safety, operators must still be alert to several common sense practices. nd to that end we offer some Os and ON Ts, simple common sense points which apply to all Enerpac hydraulic products. The line drawings and application photos of Enerpac products throughout this catalog are used to portray how some of our customers have used hydraulics in industry. In designing similar systems, care must be taken to select the proper componentvs that provide safe operation and fit your needs. revent inadvertent activation of the control units of power operated clamping systems. Maintain a safe distance from clamping elements and workpiece to avoid personal injury. Use mechanical devices and not fingers to hold part until the hydraulics are activated. heck to see if all safety measures have been taken to avoid the risk of injury and property damage from your application or system. Enerpac can not be held responsible for damage or injury, caused by unsafe use, maintenance or application of its products. lease contact the Enerpac office or a representative for guidance when you are in doubt as to the proper safety precautions to be taken in designing and setting up your particular system. In addition to these tips, every Enerpac product comes with instructions spelling out specific safety information. lease read them carefully. lamping devices must be activated before main spindle can be started. o not apply off-center load. lamping force must be directly over the support point. Use check valves to maintain hydraulic pressure to clamping devices in the event of a hydraulic line failure

163 orrect use of hydraulic power Safety instructions 100% 80% o not operate cylinders beyond limits of rated stroke or pressure. Use only 80% of usable stroke. Use saddles or buttons to prevent mushrooming of plungers. Saddles distribute load evenly on the plunger. MX. MX. Keep hydraulic equipment away from open fire and temperatures above 150 / 65. o not override the factory setting of pressure relief valves. lways use a gauge to check system pressure. Willy rake luid HYRULI OIL Use genuine Enerpac hydraulic oil. Wrong fluid destroys seals and pump, will render your warranty null and void your guarantee. lways read instructions and safety warnings that come with your Enerpac hydraulic equipment. HYRULI OIL ill pump only to recommended level. ill only when connected cylinders are fully retracted. o not kink hoses. ending radius must be at least 4.5 inch (115 mm). o not drive over or drop heavy objects on hoses. Use high pressure tubing in high cycle applications. HYRULI OIL

164 asic hydraulics Things to know Oil low hydraulic pump produces flow. low is the amount of fluid coming out of the pump. Oil low ressure Linear cylinders ressure ressure occurs when there is resistance to flow. ower sources Valves System ascal s Law ressure applied at any point upon a confined liquid is transmitted undiminished in all directions (ig.1). This means that when more than one hydraulic cylinder is being used, each cylinder will pull or push at its own rate, depending on the force required to move the load at that point (ig. 2). ylinders with the lightest load will move first and cylinders with the heaviest load will move last (Load ), if the cylinders have the same capacity. To have all cylinders operate uniformly so that the load is being pulled or pushed at the same rate at each point, control valves (see Valve section) must be added to the system (Load ). orce The amount of force a hydraulic cylinder can generate is equal to the hydraulic pressure times the effective area of the cylinder (see cylinder selection charts). Use the formula = x to determine either force, pressure or effective area if two of the variables are known. ump lunger igure 1 Gauge Manifold igure 2 orce (Load) Stroke Effective area INORRET orce Load ontrol valve to provide uniform clamping of the work piece Hydraulic = Working x ressure = x ORRET Load ylinder Effective rea ylinder

165 Things to know asic hydraulics ylinder Oil apacity The volume of oil required for a cylinder (cylinder oil capacity) is equal to the effective area of the cylinder times the stroke. ylinder Oil apacity in 3 (cm 3 ) ylinder Effective rea = x in 2 (cm 2 ) ylinder Stroke in 3 (cm 3 ) Stroke Oil apacity Usable Oil apacity The amount of hydraulic oil in the pump s reservoir which can be used to activate one or more cylinders. ylinder Speed ressure applied at any point ylinder speed is determined by dividing the pump flow rate by the cylinder effective area. Seals Various seal types are used in our hydraulic equipment: O-rings, U-cups, Quadrings and T-rings for static and dynamic applications such as rod-seal, piston-seal and wipers. una-n (nitrile rubber) and olyurethane basic compounds are most frequently used - they offer the best performance and durability for most applications. ump Usable Oil apacity in 3 (cm 3 ) ylinder lamp Speed (mm/sec) ylinder Oil apacity = in 3 (cm 3 ) Total Number of ylinders ump low Rate (cm = 3 /min) x ylinder Effective rea (cm 2 ) Heat is a crucial factor in seal life. Maximum temperature for good seal life is 150 (65 ). This is also the maximum temperature of Enerpac hydraulic oil. bove 150, the use of Viton and high temperature oil is necessary. Viton has a maximum temperature which is much higher than nitrate or polyurethane. Viton is however an extremely quick wearing material. In many cases Viton seals will have a short working life due to abrasive wear. Not all machine tool coolants are compatible with standard Enerpac seals. While most are, there are coolants that can harden or soften seals, which may result in free entry of contamination into the hydraulic cylinder. Using a high water based coolant may cause severe corrosive damage. This will often occur on fixtures where coolant has been allowed to pool for an extended period of time and evaporation has allowed it to concentrate. rain and clean fixtures after use Often Viton seals are an immediate cure for coolant attack on standard Enerpac seals. When using Viton seals in cylinders, seals in the power source must also be replaced by Viton because inevitably some coolant will enter the hydraulic system. onsult the coolant manufacturer to verify compatibility with any seal material. utting fluid suppliers will provide an application book on the compatibility of their fluids. If problems arise after previous successful use, or if problems persist, contact Enerpac

166 asic system set-up The four essential steps Linear cylinders ower sources Valves System uilding the right workholding system for a specific production tooling requirement is best achieved by observing the following basic steps three steps deal with equipment selection, one with system connection. WV-5 SURS-51 WL-111 MG-3402N ZW-5420G-T WV-5 SURS-51 WL-111 Step 1 Selecting the type of cylinders, determined by shape and size of workpiece and the machining process involved, is the critical factor in any workholding system. or that reason, Enerpac offers an exceptionally broad range of production tooling cylinders in terms of type, stroke and force rating. ositioning and push cylinders are designed to position the workpiece and to push-clamp it securely in that position. own-holding cylinders are designed to clamp the positioned workpiece firmly to the fixture or worktable. The range of Enerpac swing cylinders and edgeclamps meet virtually any downholding requirement. ull cylinders are used where the workpiece shape or fixture dictates clamping by pull forces, this type of cylinder with hydraulic or spring return can be selected to match particular needs. Work support cylinders are designed to maintain the workpiece accurately on the prescribed plane throughout the machining operation. These support cylinders preclude both vibration and distortion problems. Step 2 Select cylinder force and stroke, and choose single- or double-acting operation. The choice of force and stroke is largely dependent on size and shape of the workpiece and machining operation involved. nother factor to be considered is working space or clearance around the job, fixture or worktable. Where a machining operation requires positive hydraulic return action, doubleacting cylinders should be specified. Where spring-return action is sufficient, single-acting cylinders or a combination of the two can be used. Step 3 Select the power source. The power source for an automatic workholding system can accurately be matched to the requirements. Enerpac pumps span a wide range of sizes and capacities in compressed air or electricdriven configurations. Step 4 onnect the system. Getting your workholding system together for operation means connecting the pump to the various control valves and cylinders through a circuit of hoses and/or piping, fittings, gauges and other accessories. or example, two swing cylinders and work support cylinders working in sequence, powered by an electric-drive hydraulic pump unit would require the following : 1. ZW Workholding pump 2. G Gauge adaptor 3. G ressure gauge 4. H Hoses 5. Z ittings 6. SU 7. WL Work aupport cylinders 8. WV-5 Sequence valve Select all these from their respective catalog sections

167 and work supports asic system set-up and work supports The combined use of clamping cylinders and work supports in fixturing has become indispensable. have become important clamping for fixturing applications where unrestricted loading and unloading of the workpiece is required. Enerpac offers the most complete, comprehensively featured and compact swing cylinder line. are widely used to support critical workpiece areas to prevent them from bending and/or vibrating during the machining process. This minimizes the deflection of the workpiece, improving its quality and assuring a high degree of repeatability. The combination of swing cylinders and work supports provides substantial time savings and quality improvements in the machine tool industry. Workpiece Swing cylinder Support forces When designing a fixture, several products features of swing cylinders and work supports have to be considered. The determination of the necessary support force and the size of the work support is very critical. In principle the work support has to overcome two forces: clamping forces machining forces (including forces that may be generated by vibrations) lamping forces In practice, as a rule of thumb, the clamping force applied to the work support should not exceed 50% of its capacity at a given operating pressure. or many applications this is sufficient to absorb additional forces like machining forces. This 2 to 1 safety factor may need to be increased to 4 to 1 if extreme vibration or an interrupted cut is used. The pressure/force diagrams, provided in the product selection pages of this catalog, allow for quick selection of the right combination of swing cylinder and work support. The recommended ratio between clamping force and support force can be achieved by selecting the right sizes of the clamping and/or by operating the swing cylinder and the work support with different operating pressures, e.g. the work support will be operated at maximum pressure while the swing cylinder operates at a reduced pressure. Work Support ixture igure 1 The combined use of clamping cylinders and work supports. ownload the Swing lamp Selection Tool. The size of the swing cylinder that can be used depends on the required force and length of the clamping arm. With this tool you can determine, based on above mentioned input and type of clamp, which size of clamp can be used

168 asic system set-up and work supports oint of contact No Yes No No ower sources Linear cylinders Valves System Hydraulic requirements igure 2 The direction of the clamping force must be axial at the centerline of the work support's plunger for best results in clamping and repeatability of quality. Side loading of the work support must be avoided in order to ensure reliable and safe function (igure 2). igure 4 and hydraulically advancing work supports are very sensitive regarding the oil flow rate applied. To ensure safe and reliable function of these elements the maximum oil flow rate indicated in the catalog pages and in the instruction literature must not be exceeded. If there is the risk of high oil flow rates it is recommended to use flow control valves to adjust the flow rate. igure 3 n off-set load will cause bending of the workpiece and uncontrolled deflection (igure 3). Swing cylinder Workpiece Swing cylinder uring the clamping sequence it must be ensured that work supports will be operated only after the workpiece is firmly positioned and held against locators and datums. However, if the cylinder is clamping directly over the work support, the work support should be brought to full pressure before the cylinders clamp. This can be done by using a sequence valve

169 and work supports asic system set-up Hydraulic requirements (continued) ositioning cylinders Solenoid valve E E Sequence valve igure 5 or overhanging areas of the workpiece which have to be supported, the recommended sequence should be as follows (igure 5): 1. ositioning of the workpiece 2. ctuate work supports 3. lamp the overhanging area against work support. The hydraulic sequence can be controlled either by independently controlled hydraulic circuits (igure 6) or by sequence valves (igure 7). Swing cylinder Work support Work support Swing cylinder Modular valves ump ump 750 psi (50 bar) 1500 psi (100 bar) oppet valves Sequence valve E Sequence valve ump igure 6 igure

170 lamping technology Linear cylinders ower sources Valves System igure 1 Operating principle of a hydraulic clamping device T3 T1 R3 z z T1 T1 R2 T2 T2 y R2 igure 2 Three-dimensional body R1 igure 3a Three degrees of freedom y igure 3b One degree of freedom Z y T3 T1 T3 x x x 1 asic principles 1.1 simple hydraulic clamping mechanism (igure 1). 1.2 Terms and definitions lamping lunger device that applies clamping force to the workpiece Workpiece The part or material that is to be held in place ressure iston device used to apply pressure to a hydraulic medium Hydraulic Medium fluid used to transmit the pressure created by applying a force to the pressure piston 1.3 Hydraulic clamping process The hydraulic clamping process consists of properly applying the forces created by a hydraulic clamping system to secure a workpiece. hydraulic clamping system consists of the illustrated in igure 1, which shows the basic arrangement and operating principle of the use of hydraulic media. ny such process using hydraulic fluids for clamping purposes may be referred to as a hydraulic clamping system. The operating pressure provided by hydraulic fluids in clamping systems can reach a maximum of 5000 psi (350 bar), allowing the application of considerable clamping forces even when using compact clamping cylinders. When properly designed and controlled, the hydraulic clamping mechanism will prevent the workpiece from moving (sliding, twisting, etc.) when machining or other forces are applied, yet will not cause an unexpected permanent distortion to occur in the workpiece. 2 ssembly of hydraulic clamping devices 2.1 Locating, clamping, and supporting workpieces Locating a ody The term locating refers to the process of positioning the workpiece inside the clamping device, and holding it in position for the necessary machining. Only workpieces that are correctly held can be consistently machined within specified tolerances Limiting the degrees of freedom The process of locating and holding a workpiece may be referred to as limiting the degrees of freedom. ny motion of a workpiece in any possible direction is considered to represent one degree of freedom. three-dimensional workpiece therefore possesses six degrees of freedom, as shown in igure 2. These six degrees of freedom consist of the translational motions T in x, y, and z direction, and the rotational motions R turning about the x, y, and z axes. The degrees of freedom that a given workpiece or body possesses may be reduced by introducing reference planes that pass through any two axes. or example, the plane in igure 3a limits movement to travel in x and z directions and rotation about the y-axis. y defining this fixed plane, the workpiece can thus be limited or constrained to three degrees of freedom. nother two degrees of freedom may be constrained by introducing a second reference plane, as shown in igure 3b. This reference plane limits movement to translational motion in the x direction. onstraining the last degree of freedom can be accomplished by defining a third reference plane as shown in igure 3c. igure 3c Zero degree of freedom

171 lamping technology Locating a workpiece The process of locating and holding a necessarily require the elimination of movement in all six degrees of freedom, the following three locating techniques are used in actual practice. igure 4a: Semi-constrained Workpiece. The workpiece is held in one plane only (elimination of three degrees of freedom). igure 4b: onstrained Workpiece. The workpiece is held by two planes (elimination of five degrees of freedom). igure 4c: ully-constrained Workpiece. The workpiece is held by three planes (elimination of six degrees of freedom) voiding over-location a. Workpiece with locating planes b. Incorrectly located workpiece c. orrectly located workpiece Over-location of the workpiece occurs when there is more than one locating plane or point for any given degree of freedom. To prevent bending the b-c rib while machining the piece, a third reference plane (3) is introduced. lacing a workpiece (6) inside the clamping device (4) causes over-location. Since the distance between the locating planes (1) and (3) is constant in this device, the dimension c differs between individual workpieces. This over-location therefore gives rise to machining error. igure 5c: Shows how to locate a workpiece correctly. To avoid tilting the workpiece, the torque M transferred from the workpiece (5) to the body to be machined (6) must be balanced by an appropriate counter-torque. This counter-torque is created by the clamping force. Over-location may also occur if a workpiece (igure 5) is limited by too many locating points. The introduction of more than three locating points along the bearing surface, or more than two points in the guide plane, or more than one point in the supporting plane may lead to undesirable workpiece motion, and thus adversely affect the precision of the resulting product. ny additional support points must be adjustable. If the workpiece to be machined must be supported to avoid deflection, then all other bearing points must be defined as variables and must be determined in relationship to the workpiece being machined. The location process is subject to a number of design guidelines, but exceptions are possible. lways arrange the location points according to the pre-machined condition of the workpiece. reviously machined points have priority as desirable locating points. The locating points on the locating plane should be as far away from each other as possible. rrange the clamping points such that the defined position is retained during clamping. The locating points should be in line with the clamping points to shorten the force vectors inside the workpiece. Three, two, or even one clamping point may be used to clamp a workpiece against the locating plane. recision surfaces should not be held on a continuous surface, so that an infinite number of contact points can be avoided. 3 lamping The term clamping refers to the secure fastening of an already positioned workpiece in a clamping device for machining purposes. Locating and clamping may be viewed as a combined operation. lamping is invariably associated with force transmission through the device. The force vector should, as far as possible, describe a straight line from the application point of the clamping force through the workpiece to the bearing points. igure 4a Semi-constrained Workpiece igure 4b onstrained Workpiece igure 4c ully-constrained Workpiece 2 a c b 1 igure 5a Workpiece with locating planes 6 igure 5b Inorrectly located workpiece M igure 5c orrectly located workpiece

172 lamping technology Linear cylinders ower sources Valves System igure 6 esign guidelines for clamping igure 7 Mechanical clamping igure 8 Hydraulic clamping s with clamping, locating is subject to a number of design guidelines, although exceptions are possible: Keep the clamping force vector away from the critical tolerance zones on the workpiece. Workpiece deformation and marking due to clamping forces should be avoided or minimized. The clamping points on the workpiece should be selected so that the piece can be machined without reclamping or, if this is not feasible, with a minimum of reclamping. The required clamping forces should be approximated by rough estimations. The clamping dimensions of the workpiece may change due to thermal expansion and vibration resulting from machining. The workpiece should only be exposed to a clamping force if it is appropriately supported by a solid bearing point, as illustrated in igure 6. The dimensions of clamped workpieces may change due to vibrations and the effects of thermal expansion. Two types of clamping may compensate for these changes. Mechanical lamping Hydraulic lamping The illustration in igure 7 (mechanical clamping) demonstrates that tension is relieved as the dimensions of the workpiece in the clamping area change. In hydraulic clamping, the clamping elements gripping the workpiece adjust to changes while maintaining a constant clamping force. This is illustrated in igure 8, where the workpiece is elongated due to temperature increases during machining. Mechanical clamping is accomplished by using the following mechanical clamping elements: lamping ars lamping Springs lamping Nuts lamping olts (igure 7) Hydraulic clamping is achieved by: Elastometric media lamping with air (pneumatic clamping) lamping with liquids (hydraulic clamping) Mechanical clamping elements are usually used for simple clamping devices. However, mechanical clamping elements may be converted to hydraulic ones by inserting cylinders between the clamping element and the workpiece. In addition, mechanical elements may also be combined with hydraulic clamping elements. lamping may be subject to errors that cause deformation of the clamped workpiece. Since such deformations must not affect the function of the workpiece, all conceivable locating and supporting techniques, as well as the best possible directed transmission of the clamping force through the workpiece, should be considered. It is recommended that clamping forces be estimated to prevent excessively high clamping forces and possible deformation of the workpiece. eformation of the workpiece may also be avoided by selecting a suitable shape (for example, a sphere) for the clamping points and the locating points

173 lamping technology sp sp st st igure 9 Supported workpieces. 4 Supporting the workpiece 4.1 Supported workpiece The workpiece requires support to ensure functional force transmission between the tool, the workpiece, and the clamping device, and/or to protect the workpiece from deformation (such as deflection at points with a thin cross-section) due to machining forces, gravitational forces, and clamping forces. Workpiece support also acts to eliminate the resulting machining errors (igure 9). In addition, surface quality may be improved and the service life of the tool prolonged with the use of an optimum supporting mechanism. The three-dimensional position of a workpiece, however, should not be defined by its support. It is preceded sequentially by the locating process and also has a lower priority. 4.2 Supporting options for bent workpieces a. Unclamped workpiece b. lamped workpiece c. Machined workpiece workpiece is considered to be supported even if it must be supported by frequently mobile and variable elements surpassing the theoretical maximum number of locating points. n example of this would be an unstable workpiece that easily vibrates. When a deformed workpiece must be held and clamped in all three planes without altering its shape, it is possible to use a technique involving selfadjusting spherical surfaces. In this case the bearing surfaces, the closetolerance bolts, the limit stops, and the vertically adjustable supporting and clamping elements must be equipped with spherical surfaces. The illustrations in igure 10 illustrate two different clamping methods. It shows deformation of a workpiece caused by conventional clamping (igure 10a). s a result of this deformation, the surface area of the workpiece exhibits a greater degree of deformation when unclamped. This deformation, which is convex in shape, may be attributed to the fact that the workpiece assumes its original, deformed shape (c), as soon as the clamping pressure is released. The clamping points illustrated in igure 10b are spherically shaped, and can therefore largely adapt to the workpiece curvatures (b). The machined surface is therefore flat, and the workpiece is only exposed to possible internal stresses that may be released by machining. 4.3 etermination of the clamping force It is important to ensure that a workpiece that is clamped inside a device is not moved from its position by the clamping force and the subsequent action of the cutting force. This risk of movement may be minimized by applying the clamping force to the solid bearing surfaces of the device (igure 11). igure 10a eformation caused by conventional clamping igure 10b Eliminate deformation using spherical ball supports igure 11 pproximation of the clamping force

174 utting technology Linear cylinders ower sources Valves System rilling ace milling End mill oring Introduction This introduction will help you use information provided by tool manufacturers in the application of their tools. Estimating cutting forces being transferred into the workpiece is just one tool to use in a competitive workholding environment. The information presented here is only to be a guideline and not the final decision. Use this information with a cutting tool brochure you get from your cutting tool supplier as an aid in determining your cutting forces. Much of the calculations presented here are readily available from many sources. Your cutting supplier may even have a slide chart you can obtain to do equations for you. The operations described here include boring, drilling, end milling and face milling. rilling involves using a multi-fluted tool with a helix spiral. The tool is driven in as it is rotated to create a round hole. End Milling uses a multi-fluted rotary tool with or without removable (inserts) teeth to remove material along the edge of the workpiece. The cut is usually very shallow and the depth is many times the thickness of the cut. ace Milling involves a very shallow depth, but a very wide cut. utters can range up 12 inches (300 mm) or more in diameter and can have many replaceable teeth (inserts). These examples are only a very small sample of operations that can use hydraulic workholding. utting force determinations These cutting force examples involve face milling. The largest use of hydraulic workholding is by far for some sort of milling operations. 1 Imperial system utting orce (ounds) = Spindle Horsepower x (Horsepower to foot pounds per minute at 80% efficiency)/ utting Speed (In tool surface feet per minute) Spindle Horsepower = Unit ower (Horsepower per cubic inches of material removed per minute) x Material removal rate (ubic Inches per Minute) Material removal rate (ubic inches per minute) = Width of the cut (Inches) x epth of the ut (Inches) x eed per cutter tooth (Inches) x Number of cutter teeth x Spindle RM Example n 8-inch diameter cutter with 10 teeth (inserts) is machining low silicon aluminum at 3000 SM (surface feet per minute). irst, you must convert surface feet/ minute into tool RM/Solving Tool RM= SM iameter (Inch) x.2618 = 1432 Tool RM Now you can determine your material removal rate. n independent tool catalog lists a feed per tooth of 0.008" maximum at 3000 SM at cut depth of 0.1". This gives 8" (diameter cutter) x 0.100" (cut depth) x 0.008" (feed per tooth) x 10 (number of teeth) x 1432 (spindle RM)= 91.6 cubic inches per minute material removal rate. Next, spindle horsepower is found using unit H from the table Spindle Horsepower = 91.6 x 0.4 (Unit Horsepower for luminum with a dull tool) = 36.6 H. Note this Horsepower is for fixture design and not for machine tool horsepower requirements. or example a true 40 H machine can remove aluminum well over 200 cubic inches per minute

175 utting force technology Using the original formula: 36.6 hp x 26,400/3000 SM = 322 lbs SM of force being transmitted into the work. orce is transmitted in the same direction as the cutter movement. In other words, if the cutter moves right to left in the diagram below, the cutter force is transmitted from right to left. or example: The coefficient of friction for lubricated aluminum is.12 (flooded with coolant) this same 483 pounds of force becomes 483/.12 = 4025 pounds. This uses clamp force only and does not take into account any direct forces that may be developed by the cylinders that located the workpiece against fixed locators. 1 Spindle Hp x utting orce = 3 utting Speed 1 utting force in ounds 2 Spindle Horsepower to foot-pounds at 80% efficiency 3 utting tool surface feet per minute 2 Using a safety factor of 2 for rigid clamping gives 644 pounds in line parallel to the line force and 483 pounds using an elastic medium such as hydraulics with a safety factor of 1.5. Note this force does not take into account any sort of friction factors if you plan on relying on friction force between a swing cylinder and the workpiece. Material utter travel utter force Unit ower for dull tools [imperial system] Unit ower hp/in 3 /min Hardness Turning rilling Milling HSS & HSS & arbide HSS arbide Tools rills Tools STEELS hn lain carbon Rc lloy steels Rc Tool steels Rc Rc ST IRONS hn Gray, ductile hn and malleable STINLESS STEELS hn Rc TITNIUM hn NIKEL LLOYS hn LUMINUM LLOYS hn MGNESIUM LLOYS hn OER LLOYS Rb Rb MRR = W x x x N x RM 1 Material Removal Rate (in 3 /min) 2 W = Width of cut (in) = epth of cut (in) = eed per tooth (in) N = Number of cutter teeth RM = Spindle speed SM Tool RM = iameter x SM = Surface eet per Minute

176 utting technology Linear cylinders ower sources Valves System 2 1 Spindle kw x utting orce = 3 utting Speed 1 utting force (N) 2 Spindle power (kw) required at 80% efficiency 3 utting tool surface speed (m/min) 1 2 MRR = W x x x N x RM Material Removal Rate (cm 3 /min) 2 W = Width of cut (mm) = epth of cut (mm) = eed per tooth (mm) N = Number of teeth RM = Spindle speed Tool RM = MM x 1000 π x Tool diameter 1 MM = Surface speed m/min 2 Tool diameter in millimeters 1 2 Metric System utting orce (Newtons) = Spindle ower (kw) x (80% efficiency) / utting Speed (Meters per minute). Spindle ower = Unit ower (kilowatts per cubic centimeters of material remove per minute) x Material removal rate (cubic centimeters per minute). Material removal rate (ubic centimeters per minute) = Width of cut (mm) x depth of cut (mm) x feed per tooth (mm) x number of teeth x spindle RM/1000. Example: 200 mm cutter with 10 teeth is machining low silicon aluminum at 1000 MM (meters per minute). Solving Tool RM = MM x 1000 iameter (mm) x p (= 1592 Tool RM The same tool catalog lists a feed per tooth of 0.2 mm at 1000 MM and a cutting depth of 2.5 mm. This gives an 200 mm cutter x 2.5 mm depth x 0.2 mm feed x 10 teeth x 1592 Tool RM/1000 = 1592 cm 3 /min. Spindle power = 1592 x = 28.7 kw This too is power from a fixture design standpoint; the actual operation will use less power than indicated here. Unit ower for dull tools [ metric system] Using the original formula transposed is: utting orce 1378 (Newtons) = 28.7 (kw) x (80% efficiency) / 1000 (MM cutting speed) Multiply by a safety factor of 2 for rigid clamping and by 1.5 for elastic clamping (hydraulic). This calculation does not take into account coefficients of friction when using clamp cylinders. or example, if the aluminum has a coefficient of.12 (flooded with coolant), the clamping force becomes 1378/.12 = Newtons of force. This calculation does not take into account forces being generated by the fixture positioning cylinders. Use these numbers and set up your hydraulic system to run at about 50 to 75% of its rated pressure. This leaves some reserve for a later date when the process is optimized and you need more holding/ clampforce for higher speeds and feeds. If you design to the maximum now, you have nothing in reserve. Material Hardness TURNING 1 RILLING MILLING d HSS N HSS RILLS HSS N RIE TOOLS RIE TOOLS STEELS, WROUGHT feed feed feed mm/r mm/r mm/r N ST hn lain arbon Rc lloy Steels Rc Tool Steels Rc Rc ST IRONS hn Gray, ductile and malleable hn STINLESS STEELS, WROUGHT N ST hn erritic, austenitic and martensitic Rc TITNIUM hn NIKEL LLOYS hn LUMINUM LLOYS MGNESIUM LLOYS OER LLOYS R R

177 onversion factors Key to measurements ll capacities and measurements in the catalog are expressed in uniform values. The conversion chart provides helpful information for their translation into equivalent systems. ressure: Volume: 1 psi =.069 bar 1 bar = psi = 10 N/cm 2 1 Ma = 145 psi Weight: 1 pound (lb) =.4536 kg 1 kg = lbs 1 metric ton = 2205 lbs = 1000 kg 1 ton (short) = 2000 lbs = kg Temperature: To onvert to : T = (T x 1.8) + 32 To onvert to : T = (T 32) 1.8 Imperial to metric Inches ecimal Millimeters ¼ ½ ¾ in 3 = cm 3 1 cm 3 =.061 in 3 1 liter = in 3 =.264 gal 1 US gal = 3,785 cm 3 = l = 231 in 3 Other measurements: 1 in = 25.4 mm 1 mm =.039 in 1 in 2 = cm 2 1 cm 2 =.155 in 2 1 hp =.746 kw 1 kw = hp 1 Nm =.738 t.lbs 1 t.lbs = Nm 1 kn = lbs 1 lb = N Metric to imperial Millimeters Inches Millimeters Inches

178 est practices in hydraulic system design The following information consists of recommendations, advice and general rules regarding the design of hydraulic workholding systems. These tips apply to just about any system, and are a good starting point if you have questions about what products to use and how to apply them properly. Linear cylinders ower sources Valves System General design ouble-acting cylinders should always be used in applications where cycle time is critical. While the cylinders are designed with strong return springs, they may not consistently overcome the effects of long runs of tubing, orifices, and other restrictions. ouble-acting cylinders help eliminate these effects. Many hydraulic pumps are rated for substantial flow rates (10 gpm or more) that are far beyond the requirements of a hydraulic workholding system. While these pumps can be used, it is not recommended in general practice. Workholding cylinders are typically very small in comparison to the types of cylinders that these pumps were designed to operate. You will spend a great deal of time and money reducing the flow through the use of valving and still may not have an ideal system. onsider a separate hydraulic pump rated for less flow whenever possible. Spool valves are very common and inexpensive, but also have their share of issues regarding use in hydraulic workholding systems. Spool valves are designed for use at much higher flow rates than those typically seen in workholding circuits. In fact the acceptable internal leakage in these valves is typically equal to the total amount of flow required for a small workholding circuit. nd, the leakage will result in improper function and possible damage to many pumps designed for workholding systems. reather vents on cylinders are often overlooked. When you put oil into a single-acting cylinder and it begins to advance, the opposite side of the cylinder is filled with air. This air has to go somewhere. The breather vent provides this path. In turn, when the cylinder is retracting, and oil is leaving the cylinder, a vacuum is created and air needs to re-fill that opposite side of the cylinder. If the breather vent is located in an area that is subject to contamination from coolant, and chips, these items will also get pulled into the cylinder. Make sure the breather vent is plumbed to a clean location at all times. The swing cylinders turn on a mechanical concept of a ball or a pin riding in a hardened groove. Trying to turn this too fast with a large heavy arm will result in enormous pressure on the ball or the pin, causing damage and eventually failure. large arm also increases the amount of side load introduced into the cylinder. s the length of the arm increases, the allowable clamp load has to decrease accordingly. ollow the one-second rule: it should take at least one full second for the clamp arm to rotate and engage the part. nything faster can result in damage. are rated based upon a somewhat constant load. Sharp vibrations from an interrupted cut or a large impact load (such as dropping a part on the fixture) will cause the work support to slip. ecause of the design, once the work support has been subjected to a high impact load, it may no longer function. e aware of this fact and limit impact loading wherever possible. Manifold mounting Manifold mounting of cylinders significantly decreases the amount of space required on a fixture. It also makes installation and service much simpler. e sure to clean and de-burr all passages in the fixture manifold. urrs can break loose over time and be ingested into the hydraulic cylinders, causing severe damage. If you have a long line of cylinders all in the same manifold, route the passages from the center out and use large diameters for the main feed line. The use of small passages everywhere in the manifold will cause drastic backpressures on single- acting circuits. e sure to include a passage for the breather vents where necessary. This passage should be routed to a large open area, not an enclosed cavity. Eventually, an enclosed cavity may fill up with chips and coolant and begin to work into the cylinders

179 Most common system elements Hydraulic symbols ower sources Single-stage electric pump Turbo air pump Example ZW4010N-S Example TG-3102N E E Two-stage electric pump Example ZW5020NG Reciprocating air pump Example -136 Single-acting booster Example ouble-acting booster Example H-34 ctivator wand and booster Example -171 R-1061 Turbo air pump Example SG-3002S Turbo air pump Example MG-3402N Turbo air pump Example G-3002N Hydraulic intensifier Example I-321 Hand pump Example

180 Hydraulic symbols Most common system elements Valves 2-position manual 4-way, 3-position, loat center Series Example VE VE VMM VMM-001 Linear cylinders ower sources Valves System 2-position solenoid 3-position manual 3-position solenoid 3-way, 2-position, Normally open Series Example V VM-2 3-way, 3-position, Tandem center Series Example V VM-3, V-3 VE VE way, 3-position, Tandem center Series Example V VM-4, V-4 VE VE way, 3-position, losed center Series Example V V-15 VE VEG way, 3-position, losed center Series Example V V-20 VE VE way, 2-position, rossover offset Series Example VE VEE way, 2-position, Normally open Series Example VSS/VS VSS way, 2-position, Normally closed Series Example VST/VT VST way, 2-position, Normally closed Series V Example V-31 4-way, 2-position, ir valve Series Example V V-42 VS-42 Rapid air exhaust valve Series VR Example VR-3 ressure relief valve Series Example V V

181 Most common system elements Hydraulic symbols Valves Sequence valve Series MV WV Example MVM-5 WV-5 b 1-2 a way, 3-position, losed center Example V-11, -12 ressure limiting valve Series Example LV LV ressure reducing valve Series Example RV RV-3 heck valve Series Example V V-17 heck valve, ilot operated Series Example MV MV-72 V V-72 low control valve, ree flow check Series Example V V-1 Shut-off valve Series Example V V-12 uto-damper valve Series Example GS, V GS-2, V-10 a 1-3 a 1-3 a 1-3 b 1-2 b 1-2 b 1-2 b 1-2 a way, 3-position, loat center Example V-21, way, 2-position, Normally closed Example V-31, way, 2-position, Normally open Example V-41, way, 2-position, one port normally open and one port normally closed Example V-51,

182 Hydraulic symbols Most common system elements ylinders Single-acting cylinder, ush luid advance work support Linear cylinders Example S ST-5131 SM Example WL-111 Single-acting hollow plunger cylinder ower sources Valves System Single-acting cylinder, ull Example LSS-51 TSS-51 USS-51 ouble-acting cylinder Example R-96 T Single-acting swing cylinder Example SLRS-92 STRS-92 SURS-92 ouble-acting swing cylinder Example SLR-92 STR-92 SUR-92 Spring advance work support Example WSL Example Y HS-80 RWH-202 ull down clamp Example EH-202 ollet-lok work support Example WS-200 WTS-200 ollet-lok swing cylinder Example WR-100 WTR-100 ollet-lock push cylinder Example WS-100 WTS

183 Most common system elements Hydraulic symbols System ressure gauges ir regulator Example GR-1 G-2534R Example RL-102 Hydraulic couplers, Uncoupled ccumulator, Gas charged Example H-650 H-652 H-654 Hydraulic couplers, oupled Example H-650 H-652 H-654 Rotary coupler, Single passage Example R-111 Rotary coupler, ouble passage Example RV-221 Rotary coupler, our passage Example RV-441 Example L-201 W-502 ccumulator, Spring loaded Example M-1 Heat exchanger Example ZHE-1 Return line filter, high pressure filter, in line Example K-25 L-2101 ressure switch Example I

184 Valving Technology How and when to use hydraulic valves Linear cylinders 3-way valve used with single-acting cylinder Valve types and functions Hydraulic valves can be divided into 3 groups: 1. irectional ontrol 2. ressure ontrol 3. low ontrol 1 irectional control valves Ways the (oil) ports on a valve enter configuration ower sources Valves System 4-way valve used with double-acting cylinder Valves can be pump mounted Valves can be remote mounted Valves can be manually operated Valves can be solenoid operated 3-way valve has 3 ports: pressure (), tank (T), and cylinder (). 4-way valve has 4 ports: pressure (), tank (T), advance () and retract (). Single-acting cylinders require at least a 3-way valve, and can, under certain instances, be operated with a 4-way valve. ouble-acting cylinders require a 4-way valve, providing control of the flow to each cylinder port. ositions the number of control points a valve can provide 2-position valve has the ability to control only the advance or retraction of the cylinder. To be able to control the cylinder with a hold position, the valve requires a third position. Operation the way to shift the valve into position The valve position can be manually operated with the use of the handle. The valve position can be solenoid operated using power supply. The center position of a valve is the position at which there is no movement required of the hydraulic component, whether a tool or cylinder. The most common is the Tandem enter. This T configuration provides for no movement of the cylinder and the unloading of the pump. This provides for minimum heat build-up. The next most common is the losed enter T configuration, which is used mostly for independent control of multicylinder applications. This configuration again provides for no movement of the cylinder, but also dead-heads the pump, isolating it from the circuit. The use of this type of valve requires some means of unloading the pump to prevent heat build-up. nother commonly used valve configuration is T loat enter. This type of valve allows the cylinder ports to drain pressure back to tank. Used with a pallet mounted pilot operated check, it allows the hydraulics to be disconnected from the pallet

185 How and when to use hydraulic valves Valving Technology dvance, hold and retract The direction of the oil flow can be controlled depending on valve type, valve positions and port functions. Single-acting cylinder ontrolled by a 3-way, 3-position valve. dvance The oil flows from the pump pressure port to the cylinder port : the cylinder plunger will extend. ouble-acting cylinder ontrolled by a 4-way, 3-position valve. dvance The oil flows from the pump pressure port to the cylinder port and from cylinder port to tank T. T T Hold (tandem center) The oil flows from the pump pressure port to the tank T. The cylinder port is closed: the cylinder plunger will maintain its position. Hold (tandem center) The oil flows from the pump pressure port to the tank T. The cylinder ports and are closed: the cylinder plunger will maintain its position. T Retract The oil flows from the pump and cylinder port to the tank T: the cylinder plunger will retract. Retract The oil flows from the pump pressure port to cylinder port and from cylinder port to tank T: the cylinder plunger will retract. T T

186 Valving Technology How and when to use hydraulic valves Linear cylinders ower sources Valves System ST-5191 WEN-4020GS ST-5191 WEN-4020GS ST-5191 WV-5 VE E ST-5191 RV-3 VE E 2 ressure control Relief valve The most common type of pressure control valve is the pressure relief valve. This valve is used to limit the maximum pressure in the hydraulic circuit. This valve should always be included in any hydraulic system to limit the circuit to a maximum safe pressure. When used in a system, design considerations should be made since the valve does not act instantly. s the pressure approaches the set point the valve will at first only permit a very small amount of oil to pass. It is only when the valve opens farther that the full flow will pass through the valve. rom a practical standpoint, don t set the relief valve with a hand pump and then use it with a power pump and vice versa. The point of operation will vary. lso because of this action, when used in application with a pressure switch, the pressure setting on the pressure switch should be set at least 500 psi (35 bar) lower than the point at which the relief valve opens. This will prevent rapid cycling of the motor on the pump because of the slight pressure loss thorough the relief valve. If the pressure settings must be closer than that the pressure switch should be monitoring the system pressure and a check valve should be added between the pump and the system. This will permit the pressure to bleed down on the pump through the relief and yet the check holds the pressure in the system, which is monitored by the pressure switch. Sequence valve This valve controls the order in which various branches of the hydraulic circuit operate. It sequences the order of the actions. In practice, one part of the circuit will reach a preset pressure at which point the sequence valve will open and permit oil to flow to the secondary part of the circuit. When the flow to the secondary part of the circuit begins, the pressure in the first part of the circuit will remain at the set point permitting for example a work support to stay at its rated pressure as the swing cylinder clamps. Enerpac sequence valves have a free flow return check meaning that there is no sequence action when the circuit is unclamping. There is however a small bias spring that will open at about 30 psi (2 bar). This will ensure a positive seal when the valve must provide sequence action in the forward direction. When multiple sequence valves are used they should be used in parallel and not in series. If used in series, these 30 psi (2 bar) bias springs will restrict the flow in an accumulative effect. or example, if three valves are used, there would be about 3 x 30 psi = 90 psi (6 bar) of backpressure on after the sequence valve in the system. While on a 5000 psi (350 bar) system this pressure may not seem like much, it is enough to prevent a single-acting swing from unclamping all the way or possibly cause a work support to not fully release and not properly readjust for the next part. ressure reducing valve s the name implies, this valve will reduce the pressure to a lower value for a secondary part of the circuit. This is useful, for example, when you must reduce the capacity of a swing cylinder that might be clamping over a work support. The pressure reducing valve will automatically make-up pressure loss after the valve by permitting a very small amount of oil to the secondary circuit. This pressure difference from when the valve first closes to the point it re-opens for pressure make-up is referred as the deadband of the valve. or example, on the Enerpac pressure reducing valve, this deadband is about 5% of the system pressure. If your system pressure is 3000 psi (210 bar) and the reduced pressure is 2000 psi (140 bar), the pressure in the secondary part of the circuit would need to drop 5% of the system pressure, [3000 x.05 = 150 psi (10 bar)] before the valve would open. In this case the secondary part of the circuit would drop to 1850 psi (127.5 bar), before the valve would open and permit oil to flow to the secondary part of the circuit to return the pressure to 2000 psi (140 bar). This valve provides this function in only one direction with free flow in the reverse direction to allow cylinders to unclamp or work supports to unlock

187 How and when to use hydraulic valves Valving Technology ressure limiting valve ilot operated check valves This valve, like the pressurereducing valve, will limit the pressure in a secondary part of the circuit to a preset lower setting than the system pressure. This valve functions differently in that once the valve closes, the secondary part of the circuit will not receive any make-up oil for any pressure loss. The system pressure must drop to zero pressure before the valve will open and permit oil to flow to the secondary part of the circuit. There is no pressure make-up capability with a pressure-limiting valve. 3 low control low control valves low controls permit the change of speed of a hydraulic component through the use of an adjustable orifice. Unlike a regular flow control that provides the same flow restriction in both directions, these flow controls provide a free flow reverse check. This allows restricted flow in one direction and unrestricted flow in the other. This is a very important feature when using a flow control to regulate the speed of a single-acting swing cylinder or work support. The cylinder requires the clamping speed be regulated to a safe value through the use of a flow control to prevent damage to the cylinder. When unclamping, the spring in the cylinder will develop only a small amount of pressure. To ensure rapid unclamp time, back pressure, or resistance, must be minimized. ree flow reverse checks allow you to minimize this resistance. check valve only permits the flow of oil in one direction. The pilot operated check valve works the same as a regular check valve but also has an additional port for a pressure signal. ressure to this extra port will mechanically open the check valve to permit the oil to flow in both directions. The pilot operated check is useful in holding pressure over a period of time in a remote part of a circuit, but allowing the pressure to be released using a pressure signal to the extra port on the valve. Usually this pressure is much lower than the system pressure you are holding back. Enerpac pilot operated check valves only require 15% of the system pressure you are clamping with to open the check valve, permitting the oil to return from the fixture and unclamp the part. ST-9131 V-2 VST-1410 WEH-4020G / WMK-21 T V-72 VE WEN-4020G E E

188 lexible machining systems Linear cylinders ower sources Valves System Oil connection lange nut ixture for machining exhaust manifolds. ollet Wedge One of the most important aspects of machining cycle times is the speed and precision of the workpiece positioning, clamping and release. The speed of these actions is greatly improved through the use of hydraulic workholding, leading to increased efficiencies and cost savings. Use of palletized fixtures eing able to load many parts onto palletized fixtures also greatly increases the productivity and efficiency of the machining cycle. The use of palletized fixtures poses several problems however. The clamping cylinders must be repeatedly connected and disconnected from the hydraulic power source to make use of the flexibility of the pallets. With conventional hydraulic cylinders, this also requires the use of load holding valves and accumulators to maintain pressure. With proper maintenance, this system of hydraulic workholding is very effective. This type of clamping is also very susceptible to contamination, and additional care must be taken to maintain the filtration and preventive maintenance schedules required. Enerpac s exclusive ollet-lok technology There is another solution to palletized clamping. Enerpac s exclusive ollet-lok technology eliminates the need for live hydraulics to be maintained on the pallet during the machining cycle. Once the part is hydraulically clamped in position for machining, the cylinders are mechanically locked in place. This mechanical lock replaces the accumulators, load holding valves and other requirements of live hydraulic palletized circuits. Once the machining cycle is complete, the mechanical lock is released, and the cylinders can be retracted to allow for the next piece to be loaded. Enerpac offers swing cylinders, work supports and push cylinders with ollet-lok technology incorporated. Used in conjunction with an automatic coupler, pressure switches and proximity sensors, this technology can provide a totally automated and accurate clamping cycle. On the next page is an example of how this technology works. The ollet-lok swing cylinder has four ports. ort #1 is first pressurized to apply the appropriate clamping force. Once this pressure is reached, a sequence valve opens, sending pressure to ort #2, which mechanically locks a wedge into place. This wedge locks the plunger in place, preventing movement, and maintaining the clamping force on the workpiece. The pressure should now be removed and machining can be performed at any time. This lock can be maintained for minutes, hours, even days, without the need for hydraulic pressure. Once the machining cycle is complete, and the workpiece needs to be changed, the lock can be very easily removed. ressure should be applied to ort #3 to unlock the wedge system. Once the wedge is unlocked, and the plunger is free, pressure can be applied to ort #4 to allow the plunger to retract. With this complete, the machined workpiece can be removed and a new piece can be loaded into the fixture to continue the process. This system is the ultimate in system automation and positive control in clamping technology. or more information, be sure to consult Enerpac to receive additional literature and installation instructions

189 lexible machining systems alletized machining Hydraulic lamping and Hydraulic Mechanical Locking Step 1 Step 2 Step 3 Step 4 Step 5 WTR-100 ollet-lok swing cylinder 1 = 90 Rotation + lamp 2 = Lock 3 = Unlock 4 = Unclamp + 90 Rotation W-62, W-62 uto coupler = = = = ressure line from pump to swing cylinder ressure line from pump to swing cylinder uto coupler advance uto coupler retract Step 1 2-way uto coupler connects external power source with pallet part and the ollet-lok cylinder is activated for hydraulic clamping. Step 2 fter reaching maximum clamping pressure the sequence valve is opened and actuates the internal wedge hydraulically. Step 3 The wedge system secures the plunger position mechanically and the hydraulic pressure is taken off, then the auto coupler retracts. The product on the pallet is now securely clamped, without being connected to a power source. Step 4 fter being in the center of the machine the pallet returns to the loading and unloading position and the auto coupler is connected again to release the wedge. Step 5 The hydraulic plunger is now retracted and the pallet is free for unloading and loading

190 Mechanical clamping technology Linear cylinders ower sources Valves System igure 1 Simple hydraulic fixture with minimal workpiece deflection igure 2 Simple mechanical fixture with larger workpiece deflection Mechanical clamping versus hydraulic clamping Many factors should be taken into account when deciding whether to use mechanical or hydraulic workholding products for clamping your parts. In general, hydraulic clamping should be used in high volume applications, or when critical tolerances need to be held. Mechanical clamping products can be used in shorter production runs, or on rougher procedures where surface finishes and tight tolerances are optional. or example, using hydraulic workholding products will allow you to maintain within a 1% accuracy on your clamping force. This is through the use of digital pressure switches, electric powered pumps and hydraulic clamping and support cylinders. This type of accuracy may be necessary when machining a surface requiring tight tolerances, less than.001 inch (0,025 mm). The slightest variation in clamping force could result in part movement or deflection greater than the required overall tolerance (igure 1). In situations like this, the investment in hydraulic clamping is undeniable. Mechanical clamping products are sufficient when tight tolerances are not required, or when the part is a large casting for example, and no amount of clamping force will distort the part. typical operator, for example, can tighten a stud over a clamp to a specific torque value with possibly only 10% accuracy using a manual wrench. This could result in significant differences in part height and position on a fixture (igure 2). However with a rough casting where the required finish is not critical, this may be acceptable. nd, for the cost of mechanical clamping compared to hydraulic clamping, the choice is easy. There are also situations where hydraulic clamping is not only not necessary for accuracy, but also, potentially dangerous. perfect example of this is a die casting machine. Heat is an enemy of hydraulic, and die casting obviously generates an enormous amount of heat. Mechanical clamping is an excellent and safe solution to the problem. roduction quantity runs should also be taken into account along with time savings and cost of materials when choosing between hydraulic and mechanical clamping. Mechanical clamping is typically less expensive but more time consuming compared to hydraulic clamping. See the examples below for ideal situations in which to use hydraulic or mechanical clamping: Example 1 roduction quantity: 60,000 pieces art material cost: $25 Machine time cost: $150 p/h Hydraulic fixture and component cost: $30,000 arts per fixture: 4 Load/unload time: 20 seconds Run time: 720 seconds The run time and the load/unload time equate to 185 seconds of machine time per part. The machine costs money no matter whether you are actually cutting chips or waiting to cut chips while you are loading the parts. This is why you must take both the load and the run time into account. This 185 seconds per part equates to being able to run 155 parts per 8 hour day, at an additional cost of $7.71 per part due to machine time cost of $ per hour. The hydraulic fixture cost of $30,000 divided over 60,000 parts equates to an additional $0.50 per part. ll together, in this very simple example, you have added only $8.21 to the cost of the part. The $8.21 equates to only about a 33% increase in cost. Granted, there are more aspects which could be factored in, but you can see the minimal cost added by hydraulics in this example. ssume that you were only running 3000 parts on a small run. The machine time is the same, but now, the hydraulic fixture and adds an additional $10 to the cost of the part (30,000/3000 parts). This is a total of $17.71 additional cost, or a 71% increase. Hydraulic clamping is much too expensive for such a short run

191 Mechanical clamping technology Example 2 roduction quantity: 3000 pieces art material cost: $25 Machine time cost: $150 p/h Mechanical fixture and component cost: $5000 arts per fixture: 4 Load/unload time: 240 seconds Run time: 720 seconds In this example, the production quantity is much lower, and mechanical clamping is being used. The same part is being machined, on the same machine process. The mechanical clamping fixture is much less expensive, only adding $1.67 to the cost of each part. However, the load/ unload time has increased significantly since the operator has to manually clamp each part. The machine is now only able to produce 120 parts per 8 hour day. This adds $10 to the cost of each part in machine time cost. ll together, $11.67 has been added to the cost of each part, a 47% increase. While this may seem significant, remember that the cost increase using hydraulic clamping was 71%. Mechanical clamping is a much better choice in the lower production runs, even though it may be slower. Many factors must be taken into account to decide on either mechanical clamping or hydraulic clamping. or example, taking labor into account can significantly add to the cost of mechanical clamping, since it is a much slower process. These examples are very simple and do not include all of the variable details that could affect your decision. e sure to account for every situation in making your choice. Replacing mechanical clamping with hydraulic clamping In order to properly replace a mechanical clamping set-up with hydraulic cylinders, the most important thing to understand is the amount of clamping force being applied to the part. igure 3 is an example of a typical mechanical clamping set-up for either one part or two parts. In this situation, the operator tightens the nut on the clamping stud, which in turn applies a holding force to the work piece. In order to convert this set-up to hydraulic clamping, you will need to know some values from igure 3. T = Torque on the clamping stud (ft-lbs or N-m) = Thread diameter and pitch (for example, 3/8-16 or M8) L 1 = istance from center of clamping stud to contact point on the workpiece L 2 = istance from center of clamping stud to reaction point (or contact point on second workpiece) You will also need to know whether the clamping stud and nut are lubricated or dry. This makes a difference in how much clamping force is generated. The first thing to know is how tight that nut is being applied to the clamping stud. This is best measured using a torque wrench. Even though the operator may not use a torque wrench in the everyday use of the fixture, it is critical to be able to provide a torque reading when converting to hydraulic clamping. It may be necessary to use a torque wrench on the part a few times in order to get a good consistent value to be used in calculating the clamping force. T 1 2 Ø L 1 L 1 Total L 2 L Ø T Total igure 3 Typical mechanical clamping set-up

192 Mechanical clamping technology Linear cylinders T L 1 L igure 4 enter-hole cylinder used in hydraulic clamping set-up Once you have determined the amount of torque being applied to the clamping stud, and you have measured the diameter of the stud, and the distances L 1 and L 2, the clamping forces can be calculated. It is important to understand that the amount of clamping force being put into the clamping stud is not the same amount of force being applied to the part. In this setup, much less force gets applied to the part. You can calculate the force applied to the stud using the table. The force applied to the part is based on the formula. 1 2 = L 2 / (L 1 + L 2 ) * T = L 1 / (L 1 + L 2 ) * T When L 1 = L 2 (when the clamping stud is exactly halfway between the clamping points), 1 = 2 = ½ T ower sources Valves System SE stud sizes ry Threads K = 0.20 Stud Torque pplied size (ft-lbs) load (lbs) /4" /16" /8" /2" /8" /4" /8" " Lubricated Threads K = 0.15 Stud Torque pplied size (ft-lbs) load (lbs) /4" /16" /8" /2" /8" /4" /8" " Note: Values in the charts above are based on theoretical values. The chart values are meant to be guidelines in determining equivalent hydraulic cylinders for an application, but are by no means exact. actors such as lubrication, material, plating and method or torque application can affect the actual clamping force. lease use proper engineering practices when designing a fixture

193 Global warranty isclaimer ENER products are warranted to be free of defects in materials and workmanship under normal use for as long as they are owned by the original purchaser, subject to the exclusions and limitations described below. This warranty does not cover ordinary wear and tear, overloading, alterations, (including repairs or attempted repairs by parties other than ENER or its authorized service representatives), improper fluid, use in a manner for which they are not intended or use which is contrary to instructions for the products. THIS WRRNTY IS LIMITE TO NEW ROUTS SOL THROUGH ENER UTHORIZE ISTRIUTORS, ORIGINL EQUIMENT MNUTURERS OR OTHER ESIGNTE HNNELS O ISTRIUTION. NO GENT, EMLOYEE, OR OTHER RERESENTTIVE O ENER HS THE UTHORITY TO IN NY WY HNGE OR MEN THIS WRRNTY. Electronic products and are warranted against defects in material and workmanship for a period of two years from the date of purchase. The following items supplied with ENER products are excluded from this warranty: omponents not manufactured by ENER, including air motors and electric motors. Such items are warranted to the extent of the warranty provided by the manufacturers of such items. If the customer believes a product is defective, the product must be delivered, or shipped freight prepaid, to the nearest ENER uthorized Service enter. The customer should contact ENER to locate an uthorized Service enter in the customer s area. roducts that do not conform to this warranty will be repaired or replaced at ENER s expense and returned by ground transportation, freight prepaid. THE OREGOING WRRNTY IS EXLUSIVE N IS IN LIEU O LL OTHER EXRESS N IMLIE WRRNTIES, INLUING UT NOT LIMITE TO THE IMLIE WRRNTIES O MERHNTILITY N ITNESS OR RTIULR UROSE. The remedy of repair, replacement or refund is customer s exclusive remedy in the event of breach of this warranty. SELLER SHLL NOT E SUJET TO N ISLIMS: (a) NY OTHER OLIGTIONS OR LIILITIES RISING OUT O REH O ONTRT OR O WRRNTY, (b) NY OLIGTIONS WHTSOEVER RISING ROM TORT LIMS (INLUING NEGLIGENE N STRIT LIILITY) OR RISING UNER THEORIES O LW WITH RESET TO ROUTS SOL OR SERVIES RENERE Y SELLER OR NY UNERTKINGS, TS OR OMISSIONS RELTING THERETO, N (c) LL ONSEQUENTIL, INIENTL N ONTINGENT MGES WHTSOEVER. ENER s liability in all cases is limited to, and shall not exceed, the purchase price paid. Effective June 1, 1997 While every care has been taken in the preparation of this catalog and all data contained within is deemed accurate at the time of printing, Enerpac does reserve the right to make changes to the specifications of any product, or discontinue any product, contained within this catalog without prior notice. ll illustrations, performance specifications, weights and dimensions reflect the nominal values and slight variations may occur due to manufacturing tolerances. lease consult Enerpac if final dimensions are critical

194 Enerpac University What do you think about... Improved ccuracy? ost Effective Solutions? Increased Safety? Enerpac s On-Line School of Workholding Monthly eature rticles: s & 123 s of Hydraulic Workholding Tool Selection and Usage Manufacturing pplications ccess to Our Library & rchives: roduct Specifications rawings Instruction & Repair Sheets LUS You will receive: EU School of Workholding Newsletter via free. Visit for more information. Workholding files ONLINE! Enerpac Workholding files Enerpac is proud to introduce a new way to view Workholding products and download fi les. rom the Enerpac website, you are able to quickly locate the right product for your specifi c application, preview it in 2 or 3 and then immediately download the fi le suitable for your system. The fi les are the quickest and most accurate way to retrieve information to design any system. TRY IT OUT OR YOURSEL! Visit 2 ormats Native Solidworks WG X TI 3 ormats Native Solidworks Native ro/e Native TI IS arasolid VRML STL / IGES STE Vs