Series CNG/ ø20, ø25, ø32, ø40

Transcription

1 Cylinder with Lock Series / ø, ø, ø, ø A locking cylinder ideal for intermediate stops, emergency stops and drop prevention. Series variations Series Cylinder with lock Series Action Double acting Single rod Cushion type Standard variations Rubber Air cushion Built-in auto bumper switch magnets Standard stroke Maximum to.-1 MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

2 A locking cylinder ideal emergency stops an Simple construction A force magnifying mechanism is employed based on the wedge effect of a taper ring and steel balls. Steel balls Taper ring Cylinder with Lock Series θ f P R R Enhanced locking efficiency Greater locking efficiency as well as stable locking and unlocking operation has been achieved by arranging a large number of steel ball bearings in circular rows. The floating taper ring provides alignment and stable locking force with respect to piston rod eccentricity. (Unlocking pressure of.mpa....mpa lower than conventional SMC products) Greater reliability and stable holding force Outstanding durability and stable holding force are maintained through the use of a substantially lengthened brake shoe which provides superior wear resistance. (Double that of a conventional SMC product) Can be locked in both directions. Holding force is equal on either extend or retract. Compact lock unit saves space The lock unit is extremely compact, without a large overhang..-

3 for intermediate stops, d drop prevention. Maximum piston speed: mm/s Within the allowable kinetic energy range, speeds between to mm/s can be achieved. MLG CNA MNB CNS S CB CV/MVG CXW CXS Simple manual override In the event that the air supply is cut off or unavailable, unlocking can be performed with a commercially available tool. The fail safe mechanism locks again when the manual override is released. CXT MX MXU MXH MXS Series variations Series Cylinder with lock Series Enclosed construction minimizes influences of poor air quality Separation of the lock mechanism and the unlocking piston chamber produces a structure which is resistant to moisture and drainage in compressed air. Action Double acting Single rod Cushion type Rubber Air cushion bumper Standard variations Built-in auto switch magnets Standard stroke Maximum to REE MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY.-

4 Cylinder with Lock Double Acting: Single Rod Series ø, ø, ø, ø Standard Type How to Order L N D With Auto Switch CDNG L N D Number of auto switches With auto switch Nil pcs. (with magnet) Mounting brackets S 1 pc. B L Basic type Axial foot type n "n" pcs. ront flange type Auto Switch Type G Rear flange type Nil Without auto switch U ront trunnion type Select applicable auto switch models from the table below. T Rear trunnion type Locking direction D Clevis type Brackets are packed together (not D Both directions attached) when shipped. Rod boot Nil None Cushion type Rod boot J Nylon tarpaulin N Non-lube/rubber bumper K Heat resistant tarpaulin A Non-lube/air cushion mm When equipped with rod boot, foot and front flange type mm brackets are attached before shipment. mm Cylinder strokes mm Refer to standard stroke table on page.-. Applicable Auto Switches/Refer to page.- for detailed auto switch specifications. Load voltage Lead wire length (m) Internal magnet cylinder part numbers Type Special function Electrical Wiring Auto switch Applicable entry (output) model loads Solid state switches Reed switches Indicator light wire (NPN equiv.) Grommet No Yes No wire V Yes Connector No Diagnostic indication ( colour indicator) Grommet Yes wire (NPN) Grommet wire (PNP) wire Connector wire (NPN) Diagnostic indication ( colour indicator) wire (PNP) Yes Water resistant wire ( colour indicator) With timer Grommet wire (NPN) With diagnostic output ( colour indicator) Latch type with diagnostic output ( colour indicator) Yes wire (NPN) V V V, V V or less V V, V V or less V, V V V, V V V, V V, V V or less V C B B B C C CC CC BW HA1 HA HB HC HNW HPW HBW HBA GNT HN HL Lead wire length symbols.m... Nil (Example) CC m... Z (Example) CCZ m... L C None... N CCN Solid state auto switches marked with a "" are produced upon receipt of order. V DC V AC. (Nil) (L) None (Z) (N) IC circuit IC circuit IC circuit IC circuit IC circuit IC circuit PLC Relay, PLC Relay, PLC In the case of internal magnets with no auto switches, the auto switch type symbol is "Nil". (Example) CDNGLN--D Mounting brackets part numbers Refer to page.- for the part numbers of mounting brackets for other than the basic air cylinder..-

5 Cylinder with Lock Double Acting: Single Rod Series Models Minimum Stroke for Auto Switch Mounting Model D-C, C D-B, B D-H D-GN D-BW D-HL Symbol Number of auto switches mounted pcs. 1 pc. 1mm mm mm Rod Boot Material mm 1mm mm Symbol J K Rod boot material Nylon tarpaulin Heat resistant tarpaulin Max. operating temp. C 1 C The maximum ambient temperature for the rod boot itself. Series Type Non-lube type Cylinder Specifications Type luid Proof pressure Maximum operating pressure Minimum operating pressure Piston speed Ambient and fluid temperature Cushion Stroke length tolerance Thread tolerance Lock Specifications Locking action Unlocking pressure Locking pressure Operating pressure range Locking direction Standard Strokes Action Double acting,,, Non-lube type Air 1.MPa 1.MPa.MPa to mm/s Without auto switch: C to C With auto switch: C to C Rubber bumper, Air cushion to st: +1. JIS class Locking action Spring locking Spring locking (exhaust locking).mpa or more.1mpa or less. to 1.MPa.MPa or more.mpa or less. to 1.MPa Both directions Note 1) Standard stroke,,,, 1, 1,,,,, 1, 1,,, Note ) Long stroke 1 to 1 to 1 to 1 to Maximum available stroke 1 Holding orce for Spring Locking (Maximum Static Load) Holding force N 1 (with no freezing) Basic type, Axial foot type, ront flange type, Rear Mounting brackets flange type, ront trunnion type, Rear trunnion type, Clevis type (used for change of port position) There is a limit to the load weight depending on the piston speed when locked, mounting position and operating pressure. Note 1) Intermediate strokes other than the above are produced upon receipt of order. Spacers are not used for intermediate strokes. Note ) Long strokes are applicable to the axial foot type and front flange type. In case of other mounting brackets or when long stroke limits are exceeded, the maximum useable stroke is determined by the stroke selection table (information edition). Stopping Accuracy Locking action Spring locking ±. Piston speed (mm/s) ±. ±1. Conditions/Horizontal, supply pressures P =.MPa Load weight Upper limit of allowed values Solenoid valve for locking Mounted directly to unlocking port Maximum value taken from the range of measured stopping positions ±. Unit: mm.- MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

6 Series Mounting Bracket Part Numbers Auto Switch Mounting Bracket Part Nos. Mounting bracket Axial foot -L -L -L -L lange Trunnion pin Clevis CG-T CG-D CG-T CG-D CG-T CG-D CG-T CG-D ront trunnion bracket Rear trunnion bracket CG--A CG--A CG--A CG--A Order pcs. of foot brackets for each cylinder. The clevis type is packaged with clevis pin, snap ring and mounting bolts. Mounting bolts are included with the foot and flange types. Accessories Auto switch model D-C, C D-H D-B, B D-GNT BMA- BMA- BMA- BMA- BA-1 BA- BA- BA- Stainless Steel Mounting Screw Kits The following stainless steel mounting screw kits are available for use depending on the operating environment. (Switch mounting bands are not included and should be ordered separately.) BBA: for D-B/B/G BBA: for D-C/C/H When type D-HB switches are shipped mounted on a cylinder, the above stainless steel screws are used. Also, when switches are shipped separately BBA is included. Mounting bracket Basic type Axial foot type ront flange type Rear flange type ront trunnion type Rear trunnion type Clevis type Standard equipment Rod end nut Clevis pin Single knuckle joint Options Double knuckle joint (with pin) Trunnion bracket Rod boot The pin and snap ring are packaged together with the double knuckle joint when shipped. Weight Table Basic type Axial foot type Basic weight lange type Trunnion type Clevis type ront trunnion bracket Rear trunnion bracket Single knuckle joint Double knuckle joint (with pin) Additional weight per mm of stroke Additional weight for air cushion Additional weight for long stroke Construction Principle Calculation method (Example) LA--D (foot type, ø, st) Basic weight.kg (foot type, ø) Additional weight..kg/st Air cylinder stroke... st Air cushion additional weight....1kg. +. x / +.1 =.kg (kg).- Taper ring Air pressure exhaust Release piston Locked condition Brake spring Ball retainer Brake shoe holder Brake shoe Ball retainer Air pressure supply Unlocked condition Spring Locking (Exhaust Locking) The spring force which acts upon the taper ring is magnified by a wedge effect, and is conveyed to all of the numerous steel balls which are arranged in two circles. These act on the brake shoe holder and brake, which locks the piston rod by tightening against it with a large force. Unlocking is accomplished when air pressure is supplied to the unlocking port. The release piston and taper ring oppose the spring force, moving to the right side, and the ball retainer strikes the cover section. The braking force is released as the steel balls are removed from the taper ring by the ball retainer.

7 Cylinder with Lock Double Acting: Single Rod Series Construction With rubber bumper/bn With air cushion/ba Parts list No. Description Material Note 1 Rod cover Tube cover Cover Intermediate cover Piston rod Piston Taper ring Ball retainer Piston guide Brake shoe holder Brake shoe Release piston Aluminum alloy Aluminum alloy Aluminum alloy Aluminum alloy Carbon steel Aluminum alloy Carbon steel Special resin Carbon steel Special steel Special friction material Carbon steel White hard anodized White hard anodized White hard anodized White hard anodized Hard chrome plated Chromated Heat treated Zinc chromated Heat treated Zinc chromated 1 Release piston ø Sintered oil containing alloy bushing ø,ø,ø Steel + Special resin Unlocking cam Washer Retainer pre-load spring Brake spring Clip A Clip B Steel ball A Steel ball B Tooth ring Damper C type snap ring for taper ring C type snap ring for unlocking cam shaft Bushing Hexagon socket head screw Hexagon socket head screw Spring washer for hexagon socket head screw Damper A Damper B Snap ring Wear ring Rod end nut BC element Piston gasket Chromium molybdenum steel Rolled steel Steel wire Steel wire Stainless steel Stainless steel Carbon steel Carbon steel Stainless steel Urethane Carbon steel Carbon steel Sintered oil containing alloy Chromium molybdenum steel Chromium molybdenum steel Steel wire Urethane Urethane Stainless steel Resin Rolled steel Bronze Electroless nickel plated Electroless nickel plated Zinc chromated Zinc chromated ø, ø only ø, ø only ø is lead bronze casting Nickel plated Nickel plated Nickel plated ø is the same as damper A Nickel plated Note) In the case of cylinders equipped with auto switches, magnets are installed in the piston. The material for ø and ø cylinders equipped with auto switches is stainless steel. Long stroke Long stroke Parts list No. Description Material Note 1 Rod seal A Rod seal B Piston seal Cylinder tube gasket Release piston seal Rod seal C Piston guide gasket Intermediate cover gasket Unlocking cam gasket Head cover Cylinder tube Cushion ring A Aluminum alloy Aluminum alloy Brass White hard anodized Hard anodized Same as cushion ring A Cushion ring B Brass except for ø, standard strokes 1 Seal retainer Cushion valve A Cushion valve B Valve retainer Lock nut Snap ring Cushion seal A Rolled steel Chromium molybdenum steel Rolled steel Rolled steel Rolled steel Stainless steel Urethane Zinc chromated long strokes not available Electroless nickel plated Electroless nickel plated Electroless nickel plated Nickel plated Same as cushion seal Cushion seal B Urethane A except for ø, standard strokes Cushion ring gasket A Same as cushion ring Cushion ring gasket B gasket A except for ø, standard strokes 1 Valve seal A Valve seal B Valve retainer gasket Replacement parts: Seal kits Seal kit No. CG1N-PS CG1N-PS CG1N-PS CG1N-PS Contents A set of above Nos.,, Since the lock section for Series is normally replaced as a unit, replacement seal kits are for the cylinder section only. Order using the seal kit number for each bore size..- MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

8 Series Dimensions Basic type (B): With rubber bumper/bn Width across flats B1 Width across flats KA PH Rc(PT) BP unlocking port Unlocks when pressurized GC ront cylinder port Rear cylinder port GK GL GQ GR REE Unlocking cam (width across flats XA) PL Element (width across flats XB) øe øe. ød øe. øi BC C NA ±.1 H1 A K H TA -TC BN S + Stroke ZZ + Stroke TB C±.1 BC -J l h + l ZZ + l + Stroke f Stroke range without rod boot to 1 to to 1 to to 1 to to 1 to Stroke range with rod boot to to to to J K KA M depth M depth. M depth M depth 1 M M x 1. M x 1. M1 x 1. Note) Dimensions inside ( ) are for long strokes. 1 to 1 to 1 to 1 to NA P A B1 BC BN BP C D E GC GK GL GR GQ H () () () (1) PH PL S TA TB TC Without rod boot XA XB H ZZ e f h l ZZ 1. (1) M 1 (1) 1. 1 ().. 11 (1) M x. 1 (1) 1 1 ().. 1 (1) () M x 1. 1 () 1 1 (). 1 1 (1) () M x 1. 1 () 1 1 () Stroke x I.-

9 Cylinder with Lock Double Acting: Single Rod Series Basic type (B): With air cushion/ba Max. WH Wθ C±.1 NA Stroke range without rod boot to 1 to to 1 to to 1 to to 1 to J øe K Width across flats B1 KA øe. ød Stroke range with rod boot A to to to to 1 to 1 to 1 to 1 to 1 NA P B1 BC BN BP PH PL M depth M M 1. M depth. M depth M depth 1 M x 1. M x 1. M1 x 1. M Rc(PT) Rc(PT) Without rod boot H ZZ e f h l ZZ 1 (1) 1. 1 () 1 (1) 1 1 () 1 () 1 1 () 1 () 1 1 () Stroke x Width across flats KA H1 A K H Rc(PT) BP unlocking port Unlocks when pressurized GK GL Unlocking cam (width across flats XA) l f h + l ZZ + l + Stroke Note) Dimensions inside ( ) are for long strokes. Dimensions with mounting bracket are the same as dimensions with rubber bumper. TA -TC TB BN S + Stroke GC REE GQ PL WA ZZ + Stroke 1 S WW GR (1) 11 (1) 1 (1) 1 (1) P ront cylinder port C TA TB D 1 () () E 1 1 WB Element (width across flats XB) TC M M x. M x 1. M x 1. øe. øi () () () (1) WA P Rear cylinder port GC GK GL GR GQ H1 WB (1) 1 (1) 1 (1) 1 (1) I 1 WH WW Wθ XA XB. C±.1 BC BC PH -J.- MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

10 Series Dimensions Axial foot type (L): With rubber bumper/ln PH Width across flats B1 BC H Width across flats KA BN S + Stroke Rear cylinder port BC H1 A K -ølc (knock pin position) LT Rc(PT) BP unlocking port Unlocks when pressurized GC ront cylinder port GK GL REE GQ GR LH ød øi W X Y Width across flats NA LS + Stroke ZZ + Stroke W Y X M -øld C±.1 LX LZ -J Unlocking cam (width across flats XA) PL Element (width across flats XB) øe l f h + l ZZ + l + Stroke Stroke range without rod boot Stroke range with rod boot A B1 BC BN BP to 1 to to 1 to to 1 to to 1 to 1. 1 to 1 to to 1 to 1. 1 to 1 to to 1 to 1 1 K KA M NA P PH PL 1.. M M x 1. M x 1. M1 x (1) 11 (1) 1 (1) 1 (1) Without rod boot H ZZ e f h l ZZ 1 (1) 1. () 1. () 1. (.). (.). (.) () () Note) Dimensions inside ( ) are for long strokes. Stroke x S LC LD.. LH. C 1 1. LS (1) (1) (1) 1 (11) D 1 LT LX () () () (1) LZ GC GK GL GR GQ H1 1.. X Y. W XA XB I 1 J M M M M.-

11 Cylinder with Lock Double Acting: Single Rod Series ront flange type (): With rubber bumper/n BC PH C ±.1 NA BC Stroke range without rod boot to 1 to to 1 to to 1 to to 1 to GL GK Unlocking cam (width across flats XA) øe Width across flats KA Width across flats B1 -J ød Rc(PT) BP unlocking port Unlocks when pressurized l f h + l ZZ + l + Stroke H1 A K T H Stroke range with rod boot GC A BN S + Stroke ZZ + Stroke REE PL GQ B1 BC B BN BP Rear cylinder port C D E GC GK GL GR GQ H1 to to to to 1 to 1 to 1 to 1 to () () () (1) 1.. Without rod boot I J K KA NA P PH PL S D T X Y Z XA XB H ZZ e f h l ZZ M M 1. (1) 1 (1). 1 () 1 M M x (1) 1 (1) 1 () M M x (1). 1 () 1 () M 1 M1 x (1). 1 () 1 () Note) Dimensions inside ( ) are for long strokes. GR ront cylinder port Element (width across flats XB) øe. øi B -ød Y ±.1 X ±.1 Z Stroke x.- MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

12 Series Dimensions Rear flange type (G): With rubber bumper/gn -ød Width across flats B1 Width across flats KA Rear cylinder port PH BC C ±.1 BC -J GC øe GK GL GQ GR Y ±.1 B øe. ød øi X ±.1 Z H1 A K H BN S + Stroke ZZ + Stroke Width across flats NA T Rc(PT) BP unlocking port Unlocks when pressurized ront cylinder port REE Unlocking cam (width across flats XA) PL Element (width across flats XB) l h + l ZZ + l + Stroke f Stroke range without rod boot to to to to 1 to Stroke range with rod boot to to to to J M M M M K KA 1 M M x 1. M x 1. M1 x 1. NA Note) Dimensions inside ( ) are for long strokes. 1 to P A PH PL B1 BC B BN BP S (1) C D E GC GK GL GR GQ H1 I (1) D T X Y Z XA XB Without rod boot H ZZ e f h l ZZ () 1 () Stroke x.-

13 Cylinder with Lock Double Acting: Single Rod Series ront trunnion type (U): With rubber bumper/un BC PH C±.1 BC Stroke range without rod boot to to to to J M M M M 1 to K PD Width across flats B1 Width across flats -J KA Rc(PT) BP unlocking port KA 1 Without rod boot H Z 1 1 ZZ () H A K TA H1 Stroke range with rod boot to to to to 1 to M M x 1. M x 1. M1 x 1. e f Z Unlocks when pressurized GL GK Unlocking cam (width across flats XA) øe NA TY TW GC l h + l Z + l ZZ + l + Stroke P A PH PL h l Z ZZ () Stroke x Note) Dimensions inside ( ) are for long strokes. Refer to page.-1 regarding the trunnion bracket. PL BN REE f GQ S + Stroke Rear cylinder port Width across flats NA ZZ + Stroke B1 BC BN BP S GR (1) ront cylinder port 1 TA C TDe TE Element (width across flats XB) T.. øe. D E TH 1.. øi TR TH øte TS (1) TT.... TV TR TS.... TX TV TZ GC GK GL GR GQ H1 1.. TW TX TY Bracket mounting range -ø TDe TT (Pin O.D.) -øt TZ... øe. I 1 XA XB.-1 MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

14 Series Dimensions Rear trunnion type (T): With rubber bumper/tn -øtde (pin O.D.) TR TS Bracket mounting range øe. ød H A K H1 BN S + Stroke Rear cylinder port TB øe. øi BC PH TT -øt TX TV TZ øte +. Width across flats KA Width across flats B1 Width across flats NA Z + Stroke ZZ + Stroke TY TW C ±.1 BC -J Rc(PT)BP unlocking port Unlocks when pressurized GC Rc(PT)P ront cylinder port GL GQ GK GR Unlocking cam (width across flats XA) PL REE Element (width across flats XB) l f øe h + l Z + l + Stroke ZZ + l + Stroke Stroke range without rod boot to to to to J M M M M H 1 to K KA 1 Stroke range with rod boot to to to to 1 to M M x 1. M x 1. M1 x 1. Without rod boot Z ZZ (1) () e NA f P h Note) Dimensions inside ( ) are for long strokes. Refer to page.-1 regarding the trunnion bracket. A 1 PH PL B1 BC BN BP S 1 TB C TDe (1) () 1. l Z ZZ. 1 () () Stroke x TE T.. D E TH TR TS GC GK GL GR GQ H1 I 1.. (1) TT TV TW TX TY TZ XA XB.-1

15 Cylinder with Lock Double Acting: Single Rod Series Clevis type (D): With rubber bumper/dn -øt TX TV øte +. TZ øe Stroke range without rod boot to to to to 1 to J M M M M CZ TT K KA 1 TT TH Stroke range with rod boot to to to to 1 to M M x 1. M x 1. M1 x 1. øe. l f h + l Z + l + Stroke ZZ + l + Stroke NA Without rod boot H Z ZZ e f () () Note) Dimensions inside ( ) are for long strokes. The clevis pin and snap ring are included. Refer to page.-1 regarding the trunnion bracket. ød Width across flats B1 P h H A K H1 Width across flats KA Unlocking cam (width across flats XA) A PH PL 1 l Z. 1 () Stroke x GK GL GC B1 BC BN BP S REE PL GQ (1) ZZ 1 () Rc(PT) BP unlocking port Unlocks when pressurized BN 1 CD 1 S + Stroke C 1 1. CZ L 1 1 GR ront cylinder port øi RR D E TE T.. Rear cylinder port NA Element (width across flats XB) Z + Stroke ZZ + Stroke TH (1) TT.... L TV.... RR TY TW øcd H (hole dia.) d (shaft dia.) GC GK GL GR GQ H1 1.. TW TX TY 1 C±.1 BC TZ.. 1. I 1 XA XB -J PH.-1 MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

16 Series Accessory Dimensions Single Knuckle Joint Double Knuckle Joint The knuckle pin and snap ring are included. I-G, G Material: Rolled steel I-G Material: Cast iron Y-G, G Material: Rolled steel Y-G Material: Cast iron Applicable Part No. A bore size I-G I-G I-G, 1 ø to ø Material: Rolled steel A1 E1 L ø ront Trunnion Bracket M M x 1. M1 x 1. R R1 U1 NDH NX Part No. Applicable bore size Y-G Y-G Y-G, ø to ø Material: Rolled steel A R A1 E1 L1 R1 U1 ND NX NZ L ø M M x 1. M1 x 1. Rear Trunnion Bracket Applicable pin part no. IY-G IY-G IY-G Part No Applicable bore size TB Applicable bore TdH TE T TH TN Part No. size TB CG--A CG--A CG--A CG--A 1 TdH TE T TH TN.. (.) (.1) (.) (.) Part No Applicable bore size TR TT TU TV TW TX TY TZ Part No. CG--A CG--A CG--A CG--A Applicable bore TR TT TU TV TW TX TY TZ size Knuckle Pin Clevis Pin Rod End Nut Material: Carbon steel Material: Carbon steel Material: Rolled steel Applicable Part No. bore size IY-G IY-G IY-G.-1, Dd Applicable Applicable L d l m t Snap Part No. bore size Dd L d l m t Snap Part No. bore size B1 C D d H1 ring ring. NT- 1 (1). M C type 1.. for shaft CD-G C type for shaft NT-, 1 (1.) 1. M x 1.. NT-G 1 (1.) 1 M1 x C type for shaft CD-G C type for shaft 1... C type for shaft CD-G C type for shaft. CD-G C type 1 for shaft

17 Series Auto Switch Specifications Applicable Auto Switch Models Reed switches Solid state switches Auto switch model Electrical entry D-C, C Grommet D-CC, CC Connector D-B, B Grommet D-BW Grommet ( colour indication) D-H Grommet D-HW Grommet ( colour indication) D-HL Grommet ( colour indication, latch type with diagnostic output) D-HN Grommet ( colour indication, with diagnostic output) D-HBA Grommet ( colour indication, water resistant) D-HC Connector D-GNT Grommet (with timer) Auto Switch Mounting Brackets by Stroke/Mounting Surfaces Mounting bracket Number of auto switches Switch model Switch mounting surface D-C, C D-H, HW D-HBA, HN D-CC, CC, HC D-HL D-B, B, GNT D-BW Basic type, oot type, lange type, Clevis type pcs. (mounted on different sides) 1 pc. (rod cover side) pcs. (mounted on same side) Port surface Port surface Port surface st or more st or more st or more st or more st or more 1st or more 1 to st 1 to st 1 to st to st 1 to st to st st or more st or more st or more st or more st or more st or more 1 pc. st or more st or more st or more st or more st or more 1st or more Trunnion type pcs. (mounted on different sides) 1 to st 1 to st 1 to st to st 1 to st to st st: Stoke pcs. (mounted on same side) st or more st or more st or more st or more st or more st or more.-1 MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

18 Series Model Selection Precautions on Model Selection Step 1 ind the maximum load speed: V. Caution 1. In order that the originally selected maximum speed is not exceeded, be certain to use a speed controller to adjust the total movement distance of the load so that movement takes place in no less than the applicable movement time. The movement time is the time that is necessary for the load to travel the total movement distance from the start without any intermediate stops.. In cases where the cylinder stroke and the movement distance of the load are different (double speed mechanism, etc.), use the movement distance of the load for selection purposes. Example) ind the maximum load speed: V(mm/s) from the load movement time: t(s) and the movement distance: st. Graph 1 Load movement time: t(s) 1... st st st st st st st [Example]. V W V'.1 Maximum speed: V(mm/s) Movement distance of load Cylinder stroke Step ind the cylinder bore size. Select a graph based upon the load condition and operating pressure, and then find the point of intersection for the maximum speed found in Step 1 and the load weight. Select the bore size on the line above the point of intersection. Selection Example Load weight: m = kg Movement distance: st = mm Movement time: t =.s Load condition: Vertical downward = Load in direction of rod extension Operating pressure: P =.MPa Step 1: rom graph 1 find the maximum movement speed of the load Maximum speed V: approx. mm/s Step : Select Graph based upon the load condition and operating pressure, and then from the intersection of the maximum speed V = mm/s found in Step 1, and the load weight m = kg ø select a or larger bore size. m Load condition Direction of load at right angle to rod ( Being held by a guide) Load in direction of rod extension Load in direction of rod retraction m Operating pressure.mpa Graph.MPa Graph.MPa Graph.MPa Graph.MPa Graph m.mpa Graph.-1

19 Model Selection Series Selection Graphs Graph.MPa P<.MPa Graph.MPa P<.MPa Load weight: m (kg) Graph Load weight: m (kg) Graph Load weight: m (kg) 1.. Maximum speed: V(mm/s) 1 Load weight: m (kg) Graph Graph Maximum speed: V(mm/s).. Maximum speed: V (mm/s) Maximum speed: V(mm/s) 1 ø ø ø ø ø ø ø ø ø ø ø ø. Maximum speed: V(mm/s).MPa P<.MPa.MPa P Load weight: m (kg) Load weight: m (kg) ø ø ø ø ø ø ø ø ø ø ø ø [Example].MPa P<.MPa.MPa P. Maximum speed: V(mm/s).-1 MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

20 Series Specific Product Precautions 1 Be sure to read before handling. Design of Equipment & Machinery Warning 1. Construct so that the human body will not come into direct contact with driven objects or the moving parts of locking cylinders. Devise a safe structure by attaching protective covers that prevent direct contact with the human body, or in cases where there is a danger of contact, provide sensors or other devices to perform an emergency stop, etc. before contact occurs.. Use a balance circuit, taking cylinder lurching into consideration. In cases such as an intermediate stop, where a lock is operated at a desired position within the stroke and air pressure is applied from only one side of the cylinder, the piston will lurch at high speed when the lock is released. In such situations, there is a danger of causing human injury by having hands or feet, etc. caught, and also a danger of causing damage to the equipment. In order to prevent this lurching, use a balance circuit such as the recommended air pressure circuits (p..-1). Selection Warning 1. When in a locked condition, do not apply a load accompanied by an impact shock, strong vibration or turning force, etc. Use caution, because an external action such as an impacting load, strong vibration or turning force, may damage the locking mechanism or reduce its life.. Consider stopping accuracy and the amount of overrun when an intermediate stop is performed. Due to the nature of a mechanical lock, there is a momentary lag with respect to the stop signal, and a time delay occurs before stopping. The cylinder stroke resulting from this delay is the overrun amount. The difference between the maximum and minimum overrun amounts is the stopping accuracy. Place a limit switch before the desired stopping position, at a distance equal to the overrun amount. The limit switch must have a detection length (dog length) of the overrun amount + α. SMC's auto switches have operating ranges from to 1mm (depending on the switch model). When the overrun amount exceeds this range, self-holding of the contact should be performed at the switch load side. Refer to page.- regarding stopping accuracy. Warning. In order to further improve stopping accuracy, the time from the stop signal to the operation of the lock should be shortened as much as possible. To accomplish this, use a device such as a highly responsive electric control circuit or solenoid valve driven by direct current, and place the solenoid valve as close as possible to the cylinder.. Note that stopping accuracy will be influenced by changes in piston speed. When piston speed changes during the course of the cylinder stroke due to variations in the load or disturbances, etc., the dispersion of stopping positions will increase. Therefore, consideration should be given to establishing a standard speed for the piston just before it reaches the stopping position. Moreover, the dispersion of stopping positions will increase during the cushioned portion of the stroke and during the accelerating portion of the stroke after the start of operation, due to the large changes in piston speed. Mounting Warning 1. Be certain to connect the rod end to the load with the lock released. If connected when in the locked condition, a load greater than the turning force or holding force may operate on the piston rod and cause damage to the lock mechanism. The series is equipped with an emergency unlocking mechanism, however, when connecting the rod end to the load this should be done with the lock released by simply connecting an air line to the unlocking port and supplying air pressure of.mpa or more. Caution Selection 1. Do not apply an offset load to the piston rod. Particular care should be taken to match the load's centre of gravity with the centre of the cylinder shaft. When there is a large discrepancy, the piston rod may be subjected to uneven wear or damage due to the inertial moment during locking stops. X Load centre of gravity and cylinder shaft centre are not matched. Stop signal Amount of overrun Load centre of gravity and cylinder shaft centre are matched. Note) Can be used if all of the generated moment is absorbed by an effective guide..-

21 Series Specific Product Precautions Be sure to read before handling. Caution 1. Adjust the cylinder's air balance. Balance the load by adjusting the air pressure in the front and rear sides of the cylinder with the load connected to the cylinder and the lock released. Lurching of the cylinder when unlocked can be prevented by carefully adjusting this air balance.. Adjust the mounting positions of the detectors on auto switches, etc. When intermediate stops are to be performed, adjust the mounting positions of detectors on auto switches, etc., taking into consideration the overrun amount with respect to the desired stopping positions. Warning Adjustment Air Pressure Circuits 1. Be certain to use an air pressure circuit which will apply balancing pressure to both sides of the piston when in a locked stop. In order to prevent cylinder lurching after a locked stop, when restarting or when manually unlocking, a circuit should be used which will apply balancing pressure to both sides of the piston, thereby canceling the force generated by the load in the direction of piston movement.. Use a solenoid valve for unlocking which has a large effective area, as a rule % or more of the effective area of the cylinder drive solenoid valve. The larger the effective area is, the shorter the locking time will be (the overrun amount will be shorter), and stopping accuracy will be improved.. Place the solenoid valve for unlocking close to the cylinder, and no farther than the cylinder drive solenoid valve. The less distance there is from the cylinder (the shorter the piping), the shorter the overrun amount will be, and stopping accuracy will be improved. Warning Air Pressure Circuits. Allow at least. seconds from a locked stop (intermediate stop of the cylinder) until release of the lock. When the locked stop time is too short, the piston rod (and load) may lurch at a speed greater than the control speed of the speed controller.. When restarting, control the switching signal for the unlocking solenoid valve so that it acts before or at the same time as the cylinder drive solenoid valve. If the signal is delayed, the piston rod (and load) may lurch at a speed greater than the control speed of the speed controller.. Basic circuits. 1. [Horizontal] orward W Backward ports normally closed SOL.A SOL.C SOL.B. [Vertical] Load in direction of rod extension SOL.C SOL.B SOL.A Regulator w/check valve Pressure centre W SOL.A ON O ON ON ON O ON ON SOL.A SOL.B ON O O ON O O O O SOL.C Action O O O O ON O O ON orward Locked stop Unlocked orward Backward Locked stop Unlocked Backward Load in direction of rod retraction SOL.C SOL.B.s or more to.s.s or more to.s W.-1 MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

22 Series Specific Product Precautions Be sure to read before handling. Caution Air Pressure Circuits 1. A position pressure centre solenoid valve and regulator with check valve can be replaced with two port normally open valves and a regulator with relief function. [Example] 1. [Horizontal] W Cylinder side SOL.B SOL.A ports normally closed. [Vertical] [Load in direction of rod extension] ports normally open SOL.C Regulator with relief function Cylinder side [Load in direction of rod retraction] W Warning Manual Unlocking. Take measures to prevent the load from dropping when unlocking is performed. a) Perform work with the load in its lowest position. b) Use supports, etc. to prevent the load from dropping. Caution 1. The unlocking cam is an emergency unlocking mechanism only. During an emergency when the air supply is stopped or cut off, this is used to alleviate a problem by forcibly pushing back the release piston and brake spring to release the lock.. When installing the cylinder into equipment or performing adjustments, etc., be sure to apply air pressure of.mpa or more to the unlocking port, and do not perform work using the unlocking cam.. When releasing the lock with the unlocking cam, it must be noted that the internal resistance of the cylinder will be high, unlike normal unlocking with air pressure. Cylinder internal resistance N... Cam operating torque (standard) N m Max. cam operating torque N m.... Applicable hex. wrench size Size Size Size Size SOL.C SOL.B SOL.A W SOL.A SOL.C SOL.B. Be sure to operate the unlocking cam on the REE side (clockwise direction), and do not turn with a torque greater than the maximum cam operating torque. There is a danger of damaging the unlocking cam if it is turned excessively.. or safety reasons, the unlocking cam is constructed so that it cannot be fixed in the unlocked condition. Manual Unlocking Warning 1. Never operate the unlocking cam until safety has been confirmed. (Do not turn to the REE side.) a) When unlocking is performed with air pressure applied to only one side of the cylinder, the moving parts of the cylinder will lurch at high speed causing a serious hazard. b) When unlocking is performed, be sure to confirm that personnel are not within the load movement range and that no other problems will occur if the load moves.. Before operating the unlocking cam, exhaust any residual pressure which is in the system. Unlocking cam Release piston REE Locked condition Unlocked condition [Principle] If the unlocking cam is turned in a clockwise direction with a hexagon wrench, the release piston is pushed back and the lock is released. urther, if the unlocking cam is not held it will return to its original position and the unit will lock again. Therefore, the unlocking cam must be held in position for as long as unlocking is required. REE.-

23 Series Specific Product Precautions Be sure to read before handling. Caution 1. Series lock units are replaceable. (However, please note that lock units cannot be replaced in the case of long stroke specifications.) To order replacement lock units for the series, use the order numbers given in the table below. Lock unit order number Rubber bumper type Air cushion type ND-UA AD-UA ND-UA AD-UA ND-UA AD-UA ND-UA AD-UA. Replacement of lock units. 1) Remove the lock unit by securing the square section of the rod cover or the wrench flats of the tube cover in an apparatus such as a vice, and then loosening the other end with a spanner or adjustable angle wrench, etc. See the table below for the dimensions of the square section and the wrench flats. ) Remove the tube cover. Rod cover square section Tube cover wrench flats Cylinder tube gasket Tube cover Maintenance ) Apply compressed air of.mpa or more to the unlocking port, and pull out the piston rod assembly. P.MPa P.MPa Old Old New Sympodium Piston rod assembly ) Similarly apply compressed air of.mpa or more to the unlocking port of the new lock unit, and replace the sympodium with the previous piston rod assembly. ) Reassemble by reversing the procedure in steps 1) and ). When retightening the sections, turn approximately past their position prior to disassembly..- MLG CNA MNB CNS S CB CV/MVG CXW CXS CXT MX MXU MXH MXS MXQ MX MXW MXP MG MGP MGQ MGG MGC MG MGZ CY MY

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