Air Cylinders 3MAJ/4MAJ Series

Transcription

1 MAJ and MAJ Cylinders Features MA or MA cylinder for heavy-duty applications and reliable performance. Manual override shaft for rod lock release during non-production activities. Rod lock automatically springs back to the locked state when override is released and appropriate air signal is absent. Rod lock port for air signal to release rod lock. NPTF port is standard. Adjustable Cushions at Both nds are Standard Standard NFPA rod end dimensions from the face of the rod lock. Rod Wiper Outboard fluorocarbon rod wiper protects the cylinder by removing external debris and adherents from the piston rod during the entire stroke. Piston Rod Standard case-hardened (50-6 Rc), hard chrome plated and polished carbon steel piston rod for reliable performance, long rod seal life and low friction. 7-PH stainless steel available as an option. 58 Parker Hannifin Corporation

2 Rod Lock Features and Specifications MAJ and MAJ Series Cylinders NFPA Non-Lube Pneumatic Cylinder with Manual Override Rod Lock Rod lock versions of the MA Series (the MAJ) and MA Series (the MAJ) are available. These rod lock version provides precise load holding with virtually zero backlash and features high accuracy for demanding applications. The rod lock is a spring-activated type with air pressure release and clamps the piston rod to lock it into position. In the absence of an appropriate air signal, full holding force is applied to the piston rod. When a 60 PSI (or greater) air signal is present, the locking device is released. All rod locks include a manual override shaft to free the rod lock without air pressure during non-production activities. Some key benefits of the MAJ and MAJ Series Cylinders: Bolt-On Modularity As a true cylinder accessory, the rod lock may be removed without affecting the base cylinder (-/" to 5" bores). The same, great cylinder remains intact, allowing the rod lock to bolt-on with minimal length change. This modularity can be extremely important for special installations or while servicing the cylinder. Rod locks for 6" - 8" bores and all Style DD mounts (NFPA MT) are fastened to the base cylinder using the base cylinder s tie rods. See drawings below. Aesthetics we have designed our rod locks with the same anodized aluminum extrusion used for the cylinder endcaps, resulting in a virtually seamless assembly. In addition, we focused every effort to create the shortest overall package, minimizing the need for customers to accommodate significantly longer cylinder lengths. Functionality With a holding force corresponding to 00 PSI on the cap end for nearly every bore size, the rod lock can be used for a variety of holding applications. The manual override shaft allows occasional release of the piston rod and automatically returns the rod lock back to the locked state when it is released and the appropriate air signal is absent. The front pilot diameter meets NFPA specifications and facilitates proper installation of the cylinder to customer equipment or cylinder accessories. ase of Order ntry To order the MA or MA Series with the rod lock option, just change the product series to MAJ or MAJ (the J is required for the rod lock option). See model code on page 6 for additional information. /" to 5" Bores 6" to 8" Bores and all Style DD Mounts (NFPA MT) 59 Parker Hannifin Corporation

3 Rod Lock Features and Specifications MAJ and MAJ Series Cylinders NFPA Non-Lube Pneumatic Cylinder with Manual Override Rod Lock Connection The signal air for the locking device can be obtained directly from a main air supply, or from the air supply serving the valve that controls the cylinder itself. For controlled ON/OFF operation of the locking device, a separate quick-venting valve is used. Sample Pneumatic Circuit The piston rod should not be moving when the locking device is activated. The locking device is not intended to brake a movement in repeated sequences. NOT: The MAJ and MAJ is not intended for use in water service applications, or in environments that have high humidity levels and/or splashing fluids present. NOT: xhaust air from the rod lock can be piped away when there are demands for a contaminant-free environment. Operation at pressures lower than 60 PSI may lead to inadvertent engagement of the rod lock device. Other Cylinder and Rod Lock Features: The MAJ and MAJ rod lock will operate in both directions, engaging with the same holding force. The MAJ and MAJ can be mounted in any position. Piston rod rotation is not allowed when the rod lock is engaged (not intended for torsional braking). Rod lock is suitable for infrequent dynamic braking (emergency stops). Since the MAJ and MAJ rod lock is designed for static applications, repeated dynamic stops will cause rod and/or bearing wear and reduce holding forces. The rated holding force corresponds to static load conditions. If the rated value is exceeded, slipping and other problems may occur. If personal safety is required, an unrelated, redundant safety system is recommended. / LOCK VALV (internal pilot) Auxiliary Supply Main Supply 5/ CYLINDR VALV (external pilot). Lock valve must be maintained energized during cylinder motion, otherwise rod lock is engaged and cylinder valve shifts to mid position.. Cylinder valve must be maintained energized during extend or retract. Also keep energized at end of stroke until change of direction is desired.. Mid position of 5/ Cylinder valve may be pressurized outlets if the combination of pressure load on the cylinder and inertia effects of the attached load do not exceed the holding force rating of the rod lock device, including allowance for wear.. Do not use cylinder lines for any logic functions pressure levels vary too much. Basic Rod Lock Specifications Bore Size Rod No. Rod Dia. MM Air Chamber Volume (in ) ngagement Time (seconds) Rated Holding Force (lbs) Minimum Torque to Override (ft-lbs to hex shaft) / / / / ,56 5 / , ,96 7 / , / ,80 5 / , / ,06 60 / ,06 60 Note: This specification data applies only to the rod lock part of the MAJ and MAJ cylinder. For cylinder volume and performance, please use cylinder dimensions and application criteria. 60 Parker Hannifin Corporation

4 Notes NOTS 6 Parker Hannifin Corporation

5 Model Code.00 How to Order Cylinders for /" to 8" Bore MAJ/MAJ cylinders can be specified by model number by using the table below. C J MAJ U A C Bore Size Cushion Head nd Cushioned head end C is required. Double Rod Cylinder Specify K only if double rod cylinder is required. Mounting Style Specify mounting style code (see table on following page). Series MAJ MA Rod Lock Cylinder MAJ MA Rod Lock Cylinder Piston Type Seals Blank Standard (nitrile seals) V Fluorocarbon seals,5 Blank Standard (lipseals and magnetic ring) Lipseals, no magnetic ring Lipseals, no magnetic ring (aluminum piston) Lipseals and magnetic ring (aluminum piston) Bumper seals, no magnetic ring 6 Bumper seals and magnetic ring B Lipseals, /" thick bumpers both ends H Lipseals, /" thick bumper head end C Lipseals, /" thick bumper cap end D Lipseals and magnetic ring, /" thick bumpers both ends F Lipseals and magnetic ring, /" thick bumper head end R Lipseals and magnetic ring, /" thick bumper cap end Ports U NPTF R BSPP B BSPT T SA Fluorocarbon rod wiper and rod seal only 6 Piston Rod Number Specify rod code number for required diameter. 8 Special Modification Specify S only for special modification other than rod end, and then describe modification in item notes. (Includes MAJ with Linear Position Sensor Option) 7 Piston Rod Thread Style Small male 8 Intermediate male 9 Short female 55 For use with Split Coupler 9 Special (and specify all dimensions required) Cushion Cap nd Cushioned cap end C is required. Stroke Length Specify stroke length required in inches. 0 Piston Rod Thread Type A Standard (UNF Unified Thread) W BSF British Fine M Metric (see page 0) Rod Material Code Blank Standard rod and gland H Standard rod and HI LOAD gland Y 7- PH stainless steel rod and standard gland Z 7- PH stainless steel rod and HI LOAD gland Not available with " rod diameter (rod number ) for ½" bore. Not available with Linear Position Sensor Option (LPSO). Not available for MAJ, please specify MAJ. Addition of ¼" bumper results in a ¼" stroke loss per bumper, per end. For example, a 6" stroke cylinder with ¼" bumpers at both ends (option B) has an effective stroke of 5½". Port thread styles only for base cylinder. Rod lock port is always NPTF. If a different rod lock port thread style is required, place an S for special in the Special Modification field and indicate the desired rod lock port thread style in the item notes. NPTF cylinder ports are must be ordered for MAJ. 5 Fluorocarbon seals for MAJ are only for external chemical compatibility applications, not high temperature. 6 Used for external chemical compatibility applications, not high temperature. 7 For Linear Position Sensor Option (LPSO), please include the following information for the Special Modification item notes: a. Sensor part number (see pages 98-0) b. Sensor position c. Port position (if other than position ) d. Length of stop tubing, gross stroke and net stroke (if required) LPSO not available for MAJ, please specify MAJ. Cylinder dimensions will approximate dimensions for MAJ. Piston Type option (blank),, 6, D, F or R is required. Please consult the for additional information. 8 Review Piston Rod Selection Chart on page to determine proper piston rod diameter. 9 For additional information regarding this style, refer to page 0. If non-standard Rod Material and Gland Code is required with this option, please place an S for special in Special Modification field and specify Rod Material and Gland Code in the item notes. 0 If a stop tube is required, specify gross stroke (net stroke + stop tube) in the model number, then place an S for special in the Special Modification field and specify the stop tube length in the item notes. Not available with Piston Types (blank) and for -/" - 5" bore cylinders. Stop tube not available for MAJ, please specify MAJ. 6"-8" bore MAJ can accept only Piston Types (blank) and. The (blank) piston for 6"-8" bores is aluminum, lipseals, no magnetic ring. Composite pistons not available with oversize rod number. How to order cylinders with sensors: Sensors must be ordered separately and are not mounted to the cylinder prior to shipment.. Cylinder model number must have a Piston Type with a magnetic ring ((blank, thru 5" bore), 6, D, F or R).. Please refer to pages -8 for sensor part numbers and specifications. Global, NAMUR and Weld Immune Sensors will fit the.. Style DD mounts, 6"-8" Bore and other tie rod versions with Global Sensors will require tie rod bracket P8S-TMA0X. Please refer to page 5 for more information. 6 Parker Hannifin Corporation

6 Mounting Styles Mounting Styles NFPA Available Bore Sizes Mounting Description MAJ-LPSO w/o MAJ/MAJ* Style Stop Tube T MX0 No Mount -/ J MF Head Rectangular Flange -/ - 6-6** - 6 H MF Cap Rectangular Flange -/ - 6-6** - 6** TB MX Tie Rods xtended Head nd -/ TC MX Tie Rods xtended Cap nd -/ TD MX Tie Rods xtended Both nds -/ C MS Side Lug -/ F MS Side Tap -/ CB MS Side nd Angle -/ G MS7 Side nd Lug -/ BB MP Cap Fixed Clevis -/ - 8-8** - 8** BC MP Cap Detachable Clevis -/ - 8-8** - 8** B MP Cap Detachable ye -/ - 6-6** - 6** D MT Head Trunnion -/ DB MT Cap Trunnion -/ - 8-8** - 8** DD MT Intermediate Trunnion -/ KT MDX0 Double Rod nd, No Mount -/ Mounting Code MAJ-LPSO w/stop Tube *MAJ utilizes base MA cylinder and is available in -/" to 5" bore sizes. Mounting style codes C, D and DB not available for MAJ **May interfere with mounting. Please provide clearance for Linear Position Sensor overhang (see page 99). No Mount Basic Style T Head Rectangular Flange Cap Rectangular Flange Tie Rods xt. Head nd Tie Rods xt. Cap nd Style J Style H Style TB Style TC (NFPA MX0) (NFPA MF) (NFPA MF) (NFPA MX) (NFPA MX) Tie Rods xt. Both nds Side Lug Side Tap Side nd Angle Side nd Lug Style TD Style C Style F Style CB Style G (NFPA MX) (NFPA MS) (NFPA MS) (NFPA MS) (NFPA MS7) Cap Fixed Clevis Cap Detachable Clevis Cap Detachable ye Head Trunnion Cap Trunnion Style BB Style BC Style B Style D Style DB (NFPA MP) (NFPA MP) (NFPA MP) (NFPA MT) (NFPA MT) Intermediate Trunnion Double Rod nd Style DD Style KT (NFPA MT) (NFPA MDX0) 6 Parker Hannifin Corporation

7 MAJ/MAJ General Specifications General Specifications NFPA interchangeable* Bore sizes -/", ", -/", -/", ", 5", 6" and 8" Strokes available in any practical stroke length Rod diameters ", ", -/8" and -/" Rod end styles standard, specials available Single rod end or double rod ends Cushions required and adjustable at both ends Operating pressure 00 PSIG (6.9 Bar)** maximum air service, except for " bore with " rod (rated at 80 PSIG) 60 PSIG (. Bar) minimum air pressure to release rod lock Media dry, filtered air Temperature range -0 F to +65 F (- C to +7 C) Mounting styles 8 standard styles *NFPA standards do not specify rod lock cylinder dimensions. The base MA or MA cylinder and mounting accessories subscribe to NFPA standards. **The pressure ratings are for these devices as stated. However, the rated holding forces of the rod locks are as stated on page 60. For material options, including seals and piston rods, please see Material Specifications on next page. Cylinder Weights MAJ and MAJ Bore (inch) Mounting Weight Adders Bore (inch) Rod (inch) No Mount Single Rod MAJ and MAJ Base Wt. (lbs.) Per Inch (lbs.) Weight (lbs) by Mounting Style No Mount Double Rod Base Wt. (lbs.) Per Inch (lbs.) / / / J, H D, DB BB CB, G DD B C BC / / / N/A N/A Standard Cushion Position Mounting Code Position All except D, DB, DD D, DB, DD (MAJ only) Standard Cylinder Port Sizes*** Bore NPTF / BSPT BSPP SA / / 8 G / 8 6 / 8 G / 8 6 / / 8 G / 8 6 / / G / 0 / G / 0 5 / G / 0 6 / G / 8 / G / Port thread styles for base cylinder only. Rod lock port is always NPTF. If a different rod lock port thread style is required, place an S for special in the Special Modification field and indicate the desired rod lock port thread style in the item notes. Standard rod lock port sizes are detailed in cylinder dimension tables. ***MAJ only available with NPTF ports. 6 Parker Hannifin Corporation

8 MAJ/MAJ Material Specifications Material Specifications Standard Temperatures and Applications Same as MA for MAJ, and MA for MAJ, with the following additions/changes: Piston rod (other materials not available) Rod lock housing Rod lock wiper Manual override shaft Rod lock screws Case-hardened, chrome plated carbon steel (standard). 7- PH stainless steel, chrome plated. Black anodized aluminum alloy Fluorocarbon 6 stainless steel Black oxided steel alloy 65 Parker Hannifin Corporation

9 Cylinder Selection How to Select a MAJ and MAJ Cylinder Schrader Bellows cylinders are available based on air operating pressure. The many styles, sizes and optional features available assure that your application requirements are precisely met. To select a cylinder, follow these simple steps: Step - Determine the correct cylinder bore size necessary to achieve required force using the available operating pressure. Step - Determine the series cylinder to use, based on operating pressure. Step - Turn to the appropriate cylinder selection section. Select the mounting style that fits your installation needs. Determine the bore and rod sizes available for the model you select. Then complete model selection. Application Condition - Choose a rod end style and the desired rod end accessories. - Size the cylinder to meet your application requirements. Step - Consider the following conditions which may require further modifications to the cylinder you have selected. Quick Starts or Stops Long Push Stroke High-column Loading Long Push Stroke Long Horizontal Stroke Check the Following Confirm that determined thrust is sufficient to accelerate or decelerate cylinder and load within prescribed distance. Mandatory cushions can be used to reduce shock during deceleration, check that peak pressures will be within tolerable limits. Check whether stop tube (MAJ with aluminum piston only) is required to prevent excessive bearing loads and wear. Determine if standard size piston rod is strong enough to accommodate intended load. See Piston Rod Selection Chart or Application ngineering section for recommendations. Determine if standard size piston rod is strong enough to accommodate intended load. Options and - Piston Bumper Seals (½" through 5") Modifications - Piston Bumpers (½" through ") (MAJ only, please - Port and Cushion Adjust Relocation refer to MA section - Port Thread Styles regarding MAJ option - Multiple Ports availability beyond - Adjustable Sensors model code) - Linear Position Sensing Option (LPSO) - Double Rod nd - Rod nd Modifications - Stop Tube - Mixed Mountings - Shock Absorber on Cap nd - Round Tube and Tie Rod Construction - Lectrofluor Coating - Air Cylinder/Valve Combination (ACVB) - Hydro-Check for smooth hydraulic control For a guided version of the MAJ or MAJ Series, please see the HB Series in Schrader Bellows Pneumatic Actuator Products Catalog AU0-SB0900P-/NA. 66 Parker Hannifin Corporation

10 MAJ/MAJ Single Rod Dimensions Single Rod Dimensions /" to 5" Bore Size No Mount Basic Style T (NFPA MX0) A LAF WF VD KK OR CC MM Ø B ØNA D WRNCH FLATS K For dimensions of all standard rod end styles, please see page 68. Y P + STROK R. F MM A KK K H Q B N NR N D WRNCH FLATS VD N F G J Cylinder Dimensions Style T WF LF + STROK Rod Thread Bore Rod Dia. Style 8 Style & F Size No. MM CC KK A AA B D (NPTF) (NPTF) G H J / /-0 7/ /.000 /8 / / / 5 /-0 /-0 7/8-7/8-7/8-7/6-0 7/6-0 /-6 /-6 / / / 7/8 7/8 7/ /8 /8 / / / /8 /8 / / / /8 /8 /8 7/8-7/8- -/ - -/ - -/ - /-6 / /8 7/8 /8 /8 / /8 /8 / / / /8 /8 / / / Rod Bore Rod Dia. Hex Add Stroke Size No. MM K LAF N N N NA NR Q R VD WF Y LF P / / / / / / 7/8 7/ /8 /8 / / / 7/8 7/ Parker Hannifin Corporation

11 MAJ/MAJ Rod nd Dimensions Rod nd Dimensions /" to 5" Bore Size MM KK Thread Style (NFPA Style SM) Small Male A LAF WF VD MM Thread Style 8 (NFPA Style IM) Intermediate Male CC A LAF WF VD ØB ØB ØNA ØNA DWRNCHFLATS K D WRNCHFLATS K Thread Style 9 (NFPA Style SF) Short Female Thread Style 55 For use with Split Coupler (see page 0 for more information) MM KK WF A VD ØAM ØMM R/6 ØB ØAF ØNA A D WRNCHFLATS K AD WG K Rod nd Dimensions Rod Thread Bore Rod Dia. Style 8 Style & Size No. MM CC KK A AD A AF AM B D K LAF NA VD WF WG / /-0 7/ / / / 5 7/8- / / /8 -/ / /8- / / /8 -/ / /8- / / /8 -/ / /-0 /-0 7/6-0 7/ / / /8-7/8- /-6 / /8 7/ Thread Style - Special Thread Special threads, rod extensions, rod eyes, blanks, etc. are also available. To order, specify Style and give desired dimensions for KK or CC, A and W or WF. If otherwise special, please supply dimensioned sketch. 68 Parker Hannifin Corporation

12 /" to 5" Bore Size K-type MAJ/MAJ To determine dimensions for a double rod end cylinder, first refer to the desired single rod end mounting style cylinder shown in this catalog section. After selecting the necessary dimensions from that drawing, return to this page and supplement the single rod end dimensions with those shown in the drawings and dimension table below. Note that double rod end cylinders have a head dimension (G) at both ends, and that LG replaces LF, PK replaces P, etc. The double rod end dimensions differ from, or are in addition to, those for single rod cylinders. When a double rod end cylinder has two different rod ends, please clearly state which rod end is to be available at which head end. /" to 5" Bore Size K-type MAJ/MAJ Mounting Corresponding Styles for Mounting Styles Single Rod for Double Rod Models Models C CB D DD F G J T TB TD KC KCB KD KDD KF KG KJ KT KTB KTD ZM + X STROK Y PK+STROK WF LG+STROK MM ROD ND # ROD ND # Cylinder Dimensions Style KT K Rod Add X Add Stroke Bore Rod Dia. Stroke Size No. MM (NPTF) G K WF Y LG P K SA K XA K SS K SN K S K X K ZM / / / / 5 / / / / / / / /8 /8 /8 / / / Replaces Dimension LF P SA XA SS SN S X - On Single Rod Mounting Styles All Styles CB C F G All G G 69 Parker Hannifin Corporation

13 Dimensions /" to 5" Bore Sizes Head Rectangular Flange Style J (NFPA MF) UF W ZJ+STROK LB+STROK R TF FB HOLS F Cap Rectangular Flange Style H (NFPA MF) Note: Style J has a W dimension instead of WF because of the flange installation. For reference, WF = W + F ZF+STROK LB+STROK UF R F TF FB HOLS Cylinder Dimensions Styles J and H Rod Bore Rod Dia. Add Stroke Size No. MM F FB R TF UF W LB ZF ZJ / / / /8 /8 / Parker Hannifin Corporation

14 Catalog AU0-xxxx/US Dimensions /" to 5" Bore Sizes Tie Rods xtended Head nd Mount Style TB (NFPA MX) DD R AA BB K Tie Rods xtended Cap nd Mount Style TC (NFPA MX) DD R AA K BB Tie Rods xtended Both nds Mount Style TD (NFPA MX) DD DD R AA BB K K BB Cylinder Dimensions Styles TB, TC and TD Rod Bore Rod Dia. Size No. MM AA BB DD K R / / / / /6-5/6- /8- /8- / /8 /8 / /6-5/6- /8- /8- / Parker Hannifin Corporation

15 Catalog AU0-xxxx/US Dimensions /" to 5" Bore Sizes Side Lug Mount Style C (only MAJ) (NFPA MS) Cylinder Dimensions Style C SW SW SW TS US AB HOLS ST SW LH XS SW G SS+STROK Rod Add Bore Rod Dia. +/-.00 Stroke Size No. MM AB G J LH ST SW TS US XS SS / / / /8 /8 / J SW Side Tap Mount Style F (NFPA MS) TH Cylinder Dimensions Style F Rod Add Bore Rod Dia. +/-.00 Stroke Size No. MM ND NT TH TN XT SN / / / / /6-8 /8-6 /- / /8 /8 / /6-8 /8-6 /- / TN NT THRAD, ND DP TAPPD MTG. HOLS XT SN + STROK 7 Parker Hannifin Corporation

16 Dimensions /" to 5" Bore Sizes Side nd Angle Mount Style CB (NFPA MS) AB 6HOLS S AT AH AO AL AT SA+STROK AL AO Cylinder Dimensions Style CB Rod Add Bore Rod Dia. Stroke Size No. MM AB AH AL AL AO AT S SA / / / /8 /8 / Side nd Lug Mount Style G (NFPA MS7) Z+STROK X+STROK T B HOLS T R T GH O M S+STROK L O Cylinder Dimensions Style G Rod Bore Rod Dia. +/-.00 Add Stroke Size No. MM B L M O T GH R S X Z / / / /8 / Parker Hannifin Corporation

17 Dimensions /" to 5" Bore Sizes Cap Fixed Clevis Mount* Style BB (NFPA MP) Note: For maximum swivel angle of BB mount with rear mounting plate, see Cylinder Accessories on page 06. ZC+STROK LB+STROK CD LR XC+STROK F L MR CB CW CW Cap Detachable Clevis Mount Style BC (NFPA MP) ZD+STROK LB+STROK CD XD+STROK F L MR CB CW CW *Not available for 5" bore MAJ, please specify MAJ Cylinder Dimensions Styles BB and BC Rod Bore Rod Dia Add Stroke Size No. MM CB CD CW F L L LR MR MR LB XC XD ZC ZD / / / / /8 / Parker Hannifin Corporation

18 Dimensions /" to 5" Bore Sizes Cap Detachable ye Mount* Style B (NFPA MP) ZD+STROK LB+STROK CD XD+STROK F L MR CB Cylinder Dimensions Style B *Not available for 5" bore MAJ, please specify MAJ Rod +.00 Bore Rod Dia Add Stroke Size No. MM CB CD F L MR LB XD ZD / / / /8 /8 / Parker Hannifin Corporation

19 Dimensions /" to 5" Bore Sizes Head Trunnion Mount Style D (only MAJ) (NFPA MT) UT TD TL TL XG Cap Trunnion Mount Style DB (only MAJ) (NFPA MT) UT TD TL TL XJ+STROK Cylinder Dimensions Styles D and DB Rod Bore Rod Dia Size No. MM TD TL UT XG XJ / / / /8 /8 / Parker Hannifin Corporation

20 Dimensions /" to 5" Bore Sizes Intermediate Trunnion Mount Style DD (NFPA MT) UM BD UV TD TL TM TL XI Cylinder Dimensions Style DD Rod Bore Rod Dia Min. Min. Size No. MM BD TD TL TM UM UV XI Stroke / / / /8 /8 / Note: Tie rod nuts for Style DD have a slot instead of external hex. Note: Style DD requires Minimum Stroke per table. 77 Parker Hannifin Corporation

21 Dimensions - 6" to 8" Bore Sizes No Mount Style T (NFPA MX0) A LAF WF VD MM ØNA ØB KK or CC D WRNCH FLATS K For dimensions of all standard rod end styles, please see page 79. Y P + STROK R.6 F A Q H N AA NR N ØB MM KK D WRNCH FLATS VD N F G J K WF LF + STROK Cylinder Dimensions Style T Rod Thread Bore Rod Dia. Style 8 Style & F Size No. MM CC KK A AA B D (NPTF) (NPTF) G H J 6 8 /8 /8 -/ - -/ /8 / / / / / / / -/ - -/ - -/ - -/ / / / / / / Rod Bore Rod Dia. Hex Add Stroke Size No. MM K LAF N N N NA NR Q R VD WF Y LF P 6 8 /8 / /6-5/ / / /6-5/ Parker Hannifin Corporation

22 Rod nd Dimensions 6" to 8" Bore Sizes Rod nd Dimensions 6" to 8" Bore Sizes Thread Style (NFPA Style SM) Small Male Thread Style 8 (NFPA Style IM) Intermediate Male A LAF WF VD A LAF WF VD MM ØNA MM ØNA ØB ØB KK D WRNCH FLATS K CC D WRNCH FLATS K KK MM Thread Style 9 (NFPA Style SF) Short Female A WF VD ØAM Thread Style 55 For use with Split Coupler (see page 0 for more information) ØMM R/6 ØB ØAF ØNA A DWRNCH FLATS K AD WG K Rod nd Dimensions Rod Thread Bore Rod Dia. Style 8 Style & Size No. MM CC KK A AD A AF AM B D K LAF NA VD WF WG 6 8 /8 /8 -/ - -/ /8 -/ / / -/ - -/ - -/ - -/ / -/ Thread Style - Special Thread Special threads, rod extensions, rod eyes, blanks, etc. are also available. To order, specify Style and give desired dimensions for KK or CC, A and W or WF. If otherwise special, please supply dimensioned sketch. 79 Parker Hannifin Corporation

23 Dimensions - 6" to 8" Bore Sizes To determine dimensions for a double rod end cylinder, first refer to the desired single rod end mounting style cylinder shown in this catalog section. After selecting the necessary dimensions from that drawing, return to this page and supplement the single rod end dimensions with those shown in the drawings and dimension table below. Note that double rod end cylinders have a head dimension (G) at both ends, and that LG replaces LF, P K replaces P, etc. The double rod end dimensions differ from, or are in addition to, those for single rod cylinders. When a double rod end cylinder has two different rod ends, please clearly state which rod end is to be available at which head end. K-type drawings Mounting Corresponding Styles for Mounting Styles Single Rod for Double Rod Models Models C CB D DD F J T TB TD KC KCB KD KDD KF KJ KT KTB KTD WF Y ZM + X STROK PK + STROK LG +STROK MM ROD ND # ROD ND # G G K Cylinder Dimensions Style KT Rod Add X Add Stroke Bore Rod Dia. Stroke Size No. MM (NPTF) G K WF Y LG P K SA K XA K SS K SN K ZM 6 8 /8 /8 / / / / / / Replaces Dimension LF P SA XA SS SN - On Single Rod Mounting Styles All Styles CB C F All 80 Parker Hannifin Corporation

24 Dimensions - 6" to 8" Bore Sizes Head Rectangular Flange Mount Style J (NFPA MF) (only 6" Bore) ZJ + STROK UF W LB + STROK R TF FB HOLS F Note: Style J has a W dimension instead of WF because of the flange installation. For reference, WF = W + F Cap Rectangular Flange Mount Style H (NFPA MF) (only 6" Bore) ZF + STROK LB + STROK UF R F TF FB HOLS Cylinder Dimensions Styles J and H Rod Bore Rod Dia. Add Stroke Size No. MM F FB R TF UF W LB ZF ZJ 6 / / Parker Hannifin Corporation

25 Dimensions - 6" to 8" Bore Sizes Tie Rods xtended Head nd Mount Style TB (NFPA MX) DD R AA BB K Tie Rods xtended Cap nd Mount Style TC (NFPA MX) DD R AA K BB Tie Rods xtended Both nds Mount Style TD (NFPA MX) DD DD AA R BB K K BB Cylinder Dimensions Styles TB, TC and TD Rod Bore Rod Dia. Size No. MM AA BB DD K R 6 8 /8 / / / / / Parker Hannifin Corporation

26 Dimensions - 6" to 8" Bore Sizes Side nd Angle Mount Style CB (NFPA MS) AB HOLS S AT AH AO AL AT SA + STROK AL AO Cylinder Dimensions Style CB Rod Add Bore Rod Dia. Stroke Size No. MM AB AH AL AO AT S SA 6 8 /8 / / / Side Tap Mount Style F (NFPA MS) TH TN NT THRAD, ND DP TAPPD MTG. HOLS XT SN + STROK Cylinder Dimensions Style F Rod Add Bore Rod Dia. +/-.00 Stroke Size No. MM ND NT TH TN XT SN 6 8 /8 / /-0 / / / /-0 / Parker Hannifin Corporation

27 Dimensions - 6" to 8" Bore Sizes Side Lug Mount Style C (NFPA MS) AB HOLS LH SW SW TS US SW ST SW XS SW G SS + STROK J SW Cylinder Dimensions Style C Rod Add Bore Rod Dia. +/-.00 Stroke Size No. MM AB G J LH ST SW TS US XS SS 6 8 /8 / / / Parker Hannifin Corporation

28 Dimensions - 6" to 8" Bore Sizes Cap Fixed Clevis Style BB (NFPA MP) Note: For maximum swivel angle of BB mount with rear mounting plate, see Cylinder Accessories on page 06. ZC + STROK LB + STROK CD LR MR Cap Detachable Clevis Style BC (NFPA MP) XC + STROK ZD + STROK LB + STROK F L CD CB CW CW MR XD + STROK Cylinder Dimensions Styles BB and BC Rod Bore Rod Dia Add Stroke Size No. MM CB CD CW F L L LR MR MR LB XC XD ZC ZD 6 8 /8 / / / F L CW CB CW Cap Detachable ye Mount Style B (NFPA MP) (only 6" Bore) ZD + STROK LB + STROK CD MR XD + STROK F L CB Cylinder Dimensions Style B Rod +.00 Bore Rod Dia Add Stroke Size No. MM CB CD F L MR LB XD ZD 6 / / Parker Hannifin Corporation

29 Dimensions - 6" to 8" Bore Sizes Head Trunnion Mount Style D (NFPA MT) UT TD TL TL XG Cap Trunnion Mount Style DB (NFPA MT) UT TD TL TL XJ + STROK Cylinder Dimensions Styles D and DB Rod Bore Rod Dia Size No. MM TD TL UT XG XJ 6 8 /8 / / / Parker Hannifin Corporation

30 Dimensions - 6" to 8" Bore Sizes Intermediate Trunnion Mount Style DD (NFPA MT) UM BD UV TD TL TM TL XI Cylinder Dimensions Style DD Rod Bore Rod Dia Min. Min. Size No. MM BD TD TL TM UM UV XI Stroke 6 8 /8 / / / Note: Style DD requires Minimum Stroke per table. 87 Parker Hannifin Corporation

31 How To Order ACVB Option MA/MA ACVB.00 How to Order ACVB Option fully assembled to MA or MA Cylinder J MA U S A Bore Size Cushion Head nd Blank Non-cushioned head end C Double Rod Cylinder Specify K only if double rod cylinder is required. Cushioned head end Mounting Style Specify mounting style code per available MA or MA mount. Series MA MA Piston Type Blank Standard (lipseals and magnetic ring) Lipseals, no magnetic ring Lipseals, no magnetic ring (aluminum piston) Lipseals and magnetic ring (aluminum piston) Bumper seals, no magnetic ring 6 Bumper seals and magnetic ring B Lipseals, /" thick bumpers both ends H Lipseals, /" thick bumper head end C Lipseals, /" thick bumper cap end D Lipseals and magnetic ring, /" thick bumpers both ends F Lipseals and magnetic ring, /" thick bumper head end R Lipseals and magnetic ring, /" thick bumper cap end U Ports NPTF Seals Blank Standard (nitrile seals) Fluorocarbon rod wiper and rod seal only M Metallic rod wiper, nitrile seals* Piston Rod Number See MA/ MA section for more details. Special Modification Specify S for ACVB options and any other special modification other than rod end. See examples below. Piston Rod Thread Style Small male 8 Intermediate male 9 Short female 55 For use with Split Coupler Special (and specify all dimensions required) Stroke Length Specify stroke length required in inches. Cushion Cap nd Blank Non-cushioned cap end C Cushioned cap end Piston Rod Thread Type A Standard (UNF Unified Thread) W BSF British Fine M Metric (see page 0) Rod Material and Gland Code Blank Standard rod and gland H Standard rod and HI LOAD gland* Y 7- PH stainless steel rod and standard gland Z 7- PH stainless steel rod and HI LOAD gland* J 0 stainless steel rod and standard gland K 0 stainless steel rod and HI LOAD gland* S 6 stainless steel rod and standard gland T 6 stainless steel rod and HI LOAD gland* *MA only. xample.00 CJMAUSAC S = ACVB Valve Combination S = CB5 Manifold Code (See following page.) Flow Control Option Add S = with SP7 Flow Controls to item notes Muffler Option Add S = with M Mufflers to item notes ACVB Minimum Stroke Requirements** Bore MA/MA Compact Manifold Full Manifold **For desired strokes less than the minimum requirement, specify a stop tube for the cylinder assembly. Total stroke should be (desired net stroke) + (stop tube length to help exceed minimum stroke). Stop tube only available for MA with aluminum piston. xample:.50" bore MA with of desired net stroke: Gross stroke = 5.8" Stop tube = 0.8" Net stroke = 5.000" Note: place gross stroke in cylinder model number and specify stop tube length and net stroke in the item notes. 88 Parker Hannifin Corporation

32 How To Order ACVB Option MA/MA ACVB ACVB Series Valve/Manifold Codes Valve Series B 5 B5 6 B6 Manifold Type / Location C Compact Manifold / Cap nd (For use with B valve only) D Compact Manifold / Head nd (For use with B valve only) F Full Manifold / Cap nd (For use with B, B5 or B6 valves) G Full Manifold / Head nd (For use with B, B5 or B6 valves) Operator Type / Function Single Solenoid / Air Return Double Solenoid Single Remote Pilot / Air Return Double Remote Pilot Pilot / Source A Internal / Port # (B5, B6 only) B Internal / Port # Vented (B only) 0 None / Remote Voltage VDC 5 0 VAC X Remote Pilot Connector / Valve Series Available (Connector can be rotated in 90 increments for Options A-H) 0 None / B, B5, B6 (Remote Pilot) 5 5mm -PIN DIN 650C / B, B5, B6 (Male Connector) 6 5mm -PIN DIN 650C (rotated 80 ) / B, B5, B6 (Male Connector) A 0mm Square -PIN ISO 00 Form A / B5, B6 (Male Connector) B mm Rectangular -PIN Type B Industrial / B5, B6 (Male Connector) C -PIN Automotive Mini / B5, B6 (Female Connector) D 5-PIN Automotive Mini / B5, B6 (Female Connector) F Hazardous Duty / Conduit 8" Leads / B5, B6 H /" NPT Conduit 8 Leads / B5, B6 Customer orientation of connector at 5 degree increments possible on Options A through H on B5 and B6 valves. xample: 6 F A F A 5 5 B6 Valve Cap Mounted Full Manifold Double Solenoid Internal Pilot (Port ) 5mm -PIN Square Connector 0 VAC 89 Parker Hannifin Corporation

33 ACVB Specifications MA/MA ACVB Compact Manifold Standard Fluid Dry, filtered air. Standard Temperature -5 F to 0 F (-5 C to 9 C). Maximum 5 PSI operating pressure. Fits / " through / " Bore MA and MA standard cylinders. Uses standard Parker fittings, tubing, and seals. Compact manifold accommodates B Series valve from Parker Pneumatic Division North America without field modification to cylinder. Full Manifold Standard Fluid Dry, filtered air. Standard Temperature -5 F to 0 F (-5 C to 9 C). Maximum 5 PSI operating pressure. Fits / " through 5 Bore MA and MA standard cylinders. Uses standard Parker fittings, tubing, and seals. Full manifold accommodates B, B5 and B6 series Parker Pneumatic valves, without field modification to cylinder (B6 series shown). Bolt pattern conforms to NAMUR standard on B5 and B6 valves. Manifold and valve do not overhang beyond head or cap fasteners. 90 Parker Hannifin Corporation

34 ACVB Sizing Information MA/MA ACVB Feet Per Second Rod Speed Chart - xtend Speed.5" ".5".5" " 5" Bore Size B Valve w/ Compact Manifold B Valve w/ Full Manifold B5 Valve B6 Valve Steps to size a cylinder-valve system Step. Gather the Application Parameters Total load Maximum velocity needed to move load in specified time* Minimum pressure available Step. Size Cylinder Use equations in engineering section of Pneumatic Actuator Catalog to calculate minimum bore size Step. Size Valve/Manifold Use the Rod Speed Chart above Choose valve/manifold system that will supply maximum velocity needed for bore size chosen above Step. Choose the Appropriate Model Code** Specify necessary valve and manifold Choose type of control required Choose type of connection and voltage required *If maximum velocity is not easily calculated, divide the total stroke distance by the total stroke time and multiply by. **See the ACVB Series Valve/Manifold Code page for more details. 9 Parker Hannifin Corporation

35 Dimensions Valve Cap nd MA/MA ACVB Compact Manifold VH VK 0.6 (6.0) V (CAP FAC TO VALV BODY).5 (.8) ( PLACS) (S VALV SOLNOID OPTIONS FOR PORT SPACING) VC VZ.60 (65.) (MANIFOLD LNGTH) Full Manifold VK VH.00 (5.).50 (8.) VZ V ( PLACS) (S VALV SOLNOID OPTIONS FOR PORT SPACING) VC.00 (50.8) 6.90 (75.) (MANIFOLD LNGTH) Dimensions Bore () Manifold Valve V* VZ** MA/MA Compact B 0.7 (.) 0. (5.8) ½ B.78 (96.) 0. (5.8) Full B5.8 (88.) 0. (.) B6.97 (75.) 0. (.) Compact B 0.7 (.) 0. (5.8) / B.78 (96.) 0. (.) Full B5.6 (85.) 0. (.) B6.97 (75.) 0. (.) Compact B 0.7 (.) 0. (5.8) / B.78 (96.) 0. (.) Full B5.6 (85.) 0. (.) B6.97 (75.) 0. (.) B.90 (99.) 0.00 / / Full B5.8 (88.) 0.00 B6.0 (78.7) 0.00 B.90 (99.) 0.00 / Full B5.8 (88.) 0.00 B6.0 (78.7) 0.00 B.90 (99.) / Full B5.8 (88.) 0.00 B6.0 (78.7) 0.00 Valve (NPTF) B / 8.09 (7.7) B5 /. (8.) B6 / 8. (8.) VH VK VC.67 (8.6) 5.78 (6.8) 6.67 (69.) Compact Manifold Full Manifold Full Manifold Full Manifold. (5.8).7 (60.).8 (7.).8 (7.) * V = Dimension from edge of endcap to edge of valve body. ** VZ = Dimension from edge of endcap to edge of manifold. Note: Dimensions shown are for a single solenoid enclosure with Option 5. For other valve or enclosure option dimensions, see pages Parker Hannifin Corporation

36 Dimensions Valve Head nd MA/MA ACVB Compact Manifold V VK VH 0.6 (6.0) VC.5 (.8) VZ ( PLACS) (S VALV SOLNOID OPTIONS FOR PORT SPACING).57 (65.) (MANIFOLD LNGTH) Full Manifold VK VH VC.50 (8.).00 (5.) VZ V ( PLACS) (S VALV SOLNOID OPTIONS FOR PORT SPACING).00 (50.8) 6.90 (75.) (MANIFOLD LNGTH) Dimensions Bore () Manifold Valve V* VZ** MA/MA MA/MA Compact B 0.6 (6.6) 0.0 (5.) / B. (06.9) 0. (7.9) Full B5.79 (96.) 0. (7.9) B6. (86.6) 0. (7.9) Compact B 0.6 (6.6) 0.0 (5.) / B. (06.9) 0. (7.9) Full B5.79 (96.) 0. (7.9) B6. (86.6) 0. (7.9) Compact B 0. (8.) 0.7 (6.9) / B.7 (08.5) 0.8 (9.6) Full B5.86 (98.0) 0.8 (9.6) B6.7 (88.) 0.8 (9.6) B.0 (.8) 0.50 (.7) / / Full B5.98 (0.) 0.50 (.7) B6.60 (9.) 0.50 (.7) B.0 (.8) 0.50 (.7) / Full B5.98 (0.) 0.50 (.7) B6.60 (9.) 0.50 (.7) B.0 (.8) 0.50 (.7) 5 5 / Full B5.98 (0.) 0.50 (.7) B6.60 (9.) 0.50 (.7) Valve (NPTF) B / 8.09 (7.7) B5 /. (8.) B6 / 8. (8.) VH VK VC.67 (8.6) 5.78 (6.8) 6.67 (69.) Compact Manifold Full Manifold Full Manifold Full Manifold. (5.8).7 (60.).8 (7.).8 (7.) * V = Dimension from edge of endcap to edge of valve body. ** VZ = Dimension from edge of endcap to edge of manifold. Note: Single Solenoid with enclosure 5 shown. For other valve options, see pages Parker Hannifin Corporation

37 Dimensions Valve Solenoid Options MA/MA ACVB B Valve VP VI VH. (8.8) VK (SINGL SOLNOID) VL (DOUBL SOLNOID) VM (SINGL RMOT) VN (DOUBL RMOT) VT VX VB ( PLACS) B5 and B6 Valve VP VI VH.89 (8.0) VK (SINGL SOLNOID) VL (DOUBL SOLNOID) VM (SINGL RMOT) VN (DOUBL RMOT) VT VX ( PLACS) VB Dimensions Valve (NPTF) B /8 B5 / B6 /8 VB VH VI VK VL VM VN VP VT VX 0.87 (.). (.). (.).09 (7.7). (8.). (8.).9 (9.0).70 (68.6).60 (9.5).67 (8.6) 5.78 (6.8) 6.67 (69.) 6. (6.6) 7.5 (90.8) 8. (.6). (79.).7 (.0) 5.6 (.6). (8.6).70 (9.) 5.59 (.0).5 (57.).0 (6.0).0 (6.0) 0.56 (.) 0.88 (.).7 (9.7). (8.).75 (.5). (59.) 9 Parker Hannifin Corporation

38 Dimensions Solenoids and Mufflers MA/MA ACVB Optional lectrical Connections.96 (9.7) 0.8 (.) 0.5 (.7). (6.) 0.8 (.) VA.05.8 (77.6) (08.8) NCLOSUR C, D VA.05 (77.6) NCLOSUR A VA.05 (77.6) SOLNOID OPTION A, B, C, D, F, & H CAN B ROTATD IN 5 INCRMNTS AS SHOWN.5 (8.7).8 (58.0).0 (5.9) 5 INCRMNTS 0.8 (0.7) VA.05 (77.6) VA VT NCLOSUR 5 NCLOSUR F, H B5 AND B6 ONLY Optional lectrical Connections Dimensions NCLOSUR B Valve VA VT B B5 B6 0.6 (6.0).00 (5.).00 (5.).5 (57.).0 (6.0).0 (6.0) Optional Flow Controls /Mufflers FL HX ML HX FD TH'D FP HX FD TH'D FJ 0. +_.0 [5.6 +_.8] TH'D NGAGMNT FH 0. +_.0 [5.6 +_.8] TH'D NGAGMNT FC (FULL OPN) MF Optional Flow Controls Dimensions Valve FC FD FJ FH FL FP MF ML B B5 B6.8 (7.6).9 (8.8).9 (8.8) /8 0- / /-8 /8 / (.9).7 (9.7).7 (.) / /8 9/6 7/6 /6 7/6.00 (5.). (.5).5 (9.) 7/6 9/6 /6 95 Parker Hannifin Corporation

39 ACVB Kits and Parts MA/MA ACVB Manifold Kits Without Valve Bore Size Compact Manifold Full Manifold ½", ", and ½" ½", " and ½" ¼", ", and 5" Kit w/ Tubing L L L Kit w/o Tubing L L L Max. Stroke for Kit w/ Tubing*.5" 9.5" 9" Tubing Part # xample: Manifold Kits: Without Tubing Include: Manifold Grease O-rings for all applicable valves All necessary fasteners All necessary fittings Assembly Instructions With Tubing Include: All without tubing items 6" of appropriate tubing /8" O.D. for compact manifold " O.D. for full manifold See above table for maximum stroke lengths. Valve: To Order Valve: Consult latest revision of Parker Pneumatics Products Catalog (Catalog #0600P). Specify T code as port size/thread type on B, B5 or B6 valve order. All valves supplied with flush, locking overrides (code C ). Manifolds designed for position valves only. xample: B6TBCH90A defines: B6 ACVB Single Solenoid Valve, Flush Locking Override, with /" NPT conduit, using VDC voltage with operator on end. Flow Controls & Mufflers: Order as separate line items. Valve Size Port Size (NPTF) Flow Control Part # Muffler Part # B / B5 / B6 / WARNING The Prestomatic fittings on the manifold and cylinder end caps are to be used in conjunction with Parker Air Brake tubing PFT-6B and PFT-0B only. The use of other tubing may not be compatible with the Prestomatic fittings. This may lead to a tubing failure which could cause the cylinder piston rod to suddenly retract or extend at high speed. 96 Parker Hannifin Corporation

40 0 ACVB lectrical Connectors/Accessories MA/MA ACVB Female lectrical Connectors 5mm -Pin DIN 650C (Use with nclosure 5 ).mm Top of light Connector Connector with 6' (m) Cord PS9P PS9JP Unlighted Description PS9679P PS96J79P* Light VAC or DC PS968P PS96J8P* Light 0/0VAC 5mm 7.mm *LD with surge suppression. Note: Max Ø6.5mm cable size required for connector w/o 6' (m) cord. IP65 rated when properly installed. Molded 6' Cord Shown 0mm Square -Pin ISO 00, DIN 650A (Use with nclosure A ) 7mm Connector Connector with 6' (m) Cord PS08BP PS08JBP Unlighted Description PS079BP PS0J79BP* Light 6-8V, 50/60Hz, 6-8VDC PS08BP PS0J8BP* Light 0V/60Hz mm 8mm 0mm *LD with surge suppression. Note: Max Ø6.5mm cable size required for connector w/o 6' (m) cord. IP65 rated when properly installed. 0mm mm Rectangular -Pin Type B Industrial (Use with nclosure B ) Connector Connector with 6' (m) Cord PS9P PS9JP Unlighted Description PS079P PS0J79P* Light V/60Hz, VDC PS08P PS0J8BP* Light 0V/60Hz 0mm 0.5mm mm mm *LD with surge suppression. Note: Max Ø6.5mm cable size required for connector w/o 6' (m) cord. IP65 rated when properly installed. 0mm -Pin / 5-Pin Male Automotive Connectors (Use on mm Rectangular -Pin Solenoid) -Pin 5-Pin Description PS89CP PS89DP Unlighted PS89C##P PS89D##P Lighted - Voltage ## 8 for 0VAC 79 for VDC & VAC -Pin 57mm mm 5-Pin 97 Parker Hannifin Corporation

41 Linear Position Sensor Option MA with LPSO Linear Position Sensor for Continuous Position Feedback Generation of the ultrasonic torsion pulse in a metallic conductor based on the principle of magnetostriction. lectromagnetic field Damping Mechanical wave Mechanical wave Waveguide Initial pulse Position marker with magnets Copper conductor Signal converter coil (patented process) Receiver Principles of Operation The measuring element ( waveguide ), consists of a special nickel-alloy tube. A copper conductor is introduced through the length of this tube. The start of measurement is initiated by a short current pulse. This current generates a circular magnetic field which rotates around the waveguide. A permanent magnet at the point of measurement is used as the marker element, whose lines of field run at right angles to the electromagnetic field. In the area on the waveguide where the two fields intersect, a magneto-strictive effect causes an elastic deformation of the waveguide, which propagates along the wave guide in both directions in the form of a mechanical wave. The propagation velocity of this wave in the waveguide is 80 m/s, and is nearly insensitive to environmental effects (e.g., temperature, shock, contamination). The component of the wave which reaches the far end of the waveguide is damped there, whereas the component which arrives at the signal converter is changed into an electrical signal by reversing the magnetostrictive effect. The wave travel time from its point of origin to the signal converter is directly proportional to the distance between the permanent magnet and the signal converter. A time measurement then allows the distance to be determined with extremely high accuracy. Design The transducers are made to the same safety and reliability standards for use in the harshest conditions: The electronics unit is compactly designed using SMD technology. The boards are protected in a space-saving, rugged aluminum extruded housing. The waveguide is protected in the extruded aluminum housing. Quality ach and every transducer undergoes a specially designed, computer-controlled testing procedure which includes 00% checking of all specified data. 98 Parker Hannifin Corporation