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System of Measurement
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Force @ 100 psi
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Force @ 50 psi
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Force @ 150 psi
DFARS Specialty Metals
Export Control Classification Number (ECCN)
RoHS
About Air Cylinders
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Select a cylinder, prolong its life by reducing wear, and trigger automated processes with sensors.
Impact-Resistant Round Body Air Cylinders
Built to withstand hard knocks, these cylinders have a thick barrel wall for more durability than standard air cylinders. They combine the form of a round body air cylinder with the rugged construction of a tie-rod body air cylinder. All are double acting; they use air to exert force in both directions.
Face/pivot-mount cylinders have mounting holes on both ends, so you can install in a fixed position or in a pivoting mount. Sensor-ready cylinders have a magnetic piston to activate relays and controllers. When the piston moves past the sensor (sold separately), the sensor activates. You can use multiple sensors. Attach one for each action you want to trigger.
Sensor-Ready Face/Pivot Mount
Lg. | Air Inlet | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Stroke | Retracted | Extended | Force @ 100 psi, lbs.  | Body Material | Pipe Size | Thread Type | Gender | Each | |
3/4" Bore Size (1.02" OD) | |||||||||
| 7 1/2" | 11.3" | 18.8" | 42 | Aluminum | 1/8 | NPT | Female | 6471K208 | 000000 |
1" Bore Size (1.22" OD) | |||||||||
| 7 1/2" | 11.42" | 18.92" | 66 | Aluminum | 1/8 | NPT | Female | 6471K228 | 00000 |
1 1/4" Bore Size (1 1/2" OD) | |||||||||
| 7 1/2" | 12.01" | 19.51" | 102 | Aluminum | 1/8 | NPT | Female | 6471K238 | 00000 |
2" Bore Size (2.28" OD) | |||||||||
| 7 1/2" | 13.19" | 20.69" | 264 | Aluminum | 1/4 | NPT | Female | 6471K258 | 000000 |
Pivot Brackets with Pin for Face/Pivot-Mount Air Cylinders
Trunnion Brackets with Pin for Face/Pivot-Mount Air Cylinders
| For Bore Size | Material | Includes | Each | |
| 3/4" | Nickel-Plated Steel | Trunnion Bolts, Trunnion Pins, Washers | 6471K91 | 00000 |
| 1" | Nickel-Plated Steel | Trunnion Bolts, Trunnion Pins, Washers | 6471K92 | 0000 |
| 1 1/4" | Nickel-Plated Steel | Trunnion Bolts, Trunnion Pins, Washers | 6471K93 | 00000 |
| 2" | Nickel-Plated Steel | Trunnion Bolts, Trunnion Pins, Washers | 6471K95 | 00000 |
Rod Clevis with Pin for Face/Pivot-Mount Air Cylinders
| For Bore Size | Material | Pin Material | Includes | Each | |
| 3/4" | Trivalent Chromium Steel | Steel | Nut, Pin, Retaining Rings | 6471K61 | 00000 |
| 1" | Trivalent Chromium Steel | Steel | Nut, Pin, Retaining Rings | 6471K62 | 0000 |
| 1 1/4", 1 1/2" | Trivalent Chromium Steel | Steel | Nut, Pin, Retaining Rings | 6471K63 | 0000 |
| 2", 2 1/2" | Trivalent Chromium Steel | Steel | Nut, Pin, Retaining Rings | 6471K64 | 0000 |
NFPA Tie Rod Air Cylinders
Made to fit the most common mounting footprint, these cylinders have an NFPA (National Fluid Power Association) industry-standard footprint, ensuring easy interchangeability. They have a magnetic piston, so you can use sensors (sold separately) to activate relays and controllers.
Sensor Ready
Lg. | Air Inlet | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Stroke | Retracted | Extended | Force @ 100 psi, lbs. | Body Material | Bearing Material | Pipe Size | Thread Type | Gender | Each | |
1 1/2" Bore Size (2" Wd.) | ||||||||||
| 7 1/2" | 12.88" | 20.38" | 177 | Aluminum | PTFE-Coated Cast Iron | 1/4 | NPT | Female | 6211K106 | 0000000 |
2" Bore Size (2 1/2" Wd.) | ||||||||||
| 7 1/2" | 12.88" | 20.38" | 314 | Aluminum | PTFE-Coated Cast Iron | 1/4 | NPT | Female | 6211K492 | 000000 |
2 1/2" Bore Size (3" Wd.) | ||||||||||
| 7 1/2" | 13" | 20.5" | 491 | Aluminum | PTFE-Coated Cast Iron | 1/4 | NPT | Female | 6211K532 | 000000 |
3 1/4" Bore Size (3 3/4" Wd.) | ||||||||||
| 7 1/2" | 14.25" | 21.75" | 830 | Aluminum | PTFE-Coated Cast Iron | 3/8 | NPT | Female | 6211K571 | 000000 |
4" Bore Size (4 1/2" Wd.) | ||||||||||
| 7 1/2" | 14.25" | 21.75" | 1,257 | Aluminum | PTFE-Coated Cast Iron | 3/8 | NPT | Female | 6211K614 | 000000 |
Rod Clevis with Pin
Connect these mounts to an air cylinder to create linear, pivot, or arc movements. These mounts are compatible with NFPA tie rod air cylinders.
Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.
Pivot brackets and clevis brackets work together to allow the rear portion of cylinders to pivot back and forth. Use either with a clevis rod end to create arcing movements. Rod clevises allow the front portion of cylinders to pivot.
Pin | Thread | Shank | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Dia. | Lg. | Material | Lg. | Ht. | Jaw Opening Wd. | Size | Type | Spacing | Lg. | Center Lg. | Gender | Material | Includes | Each | |
| 3 1/4", 4" | 3/4" | 3.094" | Steel | 3 1/8" | 1 1/2" | 1 1/4" | 3/4"-16 | UNF | Fine | 1 1/8" | 2 3/8" | Female | Steel | Cotter Pin | 6211K66 | 0000000 |
Tie Rod Air Cylinders
Rods along the barrel of these cylinders secure the end caps and shield the barrel from impact.
Sensor-ready cylinders have a magnetic piston that can trigger one or more sensors (sold separately) to activate relays and controllers.
Cushioned cylinders have adjustable air cushions that absorb piston impact to minimize wear and noise. Turn the screws at each port to adjust the amount of cushion.
Lg. | Air Inlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke | Retracted | Extended | Force @ 100 psi, lbs. | Sensor Ready | Air Cushion Type | Body Material | Pipe Size | Thread Type | Gender | Each | |
3/4" Bore Size (1" Wd.) | |||||||||||
| 7 1/2" | 10.75" | 18.25" | 44 | Sensor Ready | No Cushion | Aluminum | 1/8 | NPT | Female | 6453K103 | 0000000 |
1 1/8" Bore Size (1 1/2" Wd.) | |||||||||||
| 7 1/2" | 10.75" | 18.25" | 99 | Sensor Ready | No Cushion | Aluminum | 1/8 | NPT | Female | 6453K169 | 000000 |
1 1/4" Bore Size (1 13/16" Wd.) | |||||||||||
| 7 1/2" | 12.03" | 19.53" | 123 | Not Sensor Ready | No Cushion | Aluminum | 1/8 | NPT | Female | 6556K379 | 000000 |
1 3/4" Bore Size (2 3/8" Wd.) | |||||||||||
| 7 1/2" | 13.55" | 21.05" | 240 | Not Sensor Ready | No Cushion | Aluminum | 1/4 | NPT | Female | 6556K418 | 000000 |
| 7 1/2" | 13.55" | 21.05" | 240 | Sensor Ready | No Cushion | Aluminum | 1/4 | NPT | Female | 4917K199 | 000000 |
2" Bore Size (2 3/8" Wd.) | |||||||||||
| 7 1/2" | 13.55" | 21.05" | 314 | Not Sensor Ready | No Cushion | Aluminum | 1/4 | NPT | Female | 6556K457 | 000000 |
| 7 1/2" | 14.55" | 22.05" | 314 | Not Sensor Ready | Adjustable Cushion | Aluminum | 1/4 | NPT | Female | 6556K185 | 000000 |
2 1/2" Bore Size (2 7/8" Wd.) | |||||||||||
| 7 1/2" | 13.55" | 21.05" | 491 | Not Sensor Ready | No Cushion | Aluminum | 3/8 | NPT | Female | 6556K496 | 000000 |
| 7 1/2" | 13.55" | 21.05" | 491 | Sensor Ready | No Cushion | Aluminum | 3/8 | NPT | Female | 4917K368 | 000000 |
| 7 1/2" | 14.55" | 22.05" | 491 | Not Sensor Ready | Adjustable Cushion | Aluminum | 3/8 | NPT | Female | 6556K224 | 000000 |
3" Bore Size (3 3/8" Wd.) | |||||||||||
| 7 1/2" | 13.55" | 21.05" | 707 | Not Sensor Ready | No Cushion | Aluminum | 3/8 | NPT | Female | 6556K535 | 000000 |
| 7 1/2" | 14.55" | 22.05" | 707 | Not Sensor Ready | Adjustable Cushion | Aluminum | 3/8 | NPT | Female | 6556K263 | 000000 |
3 1/2" Bore Size (4 1/8" Wd.) | |||||||||||
| 7 1/2" | 14.67" | 22.17" | 962 | Not Sensor Ready | No Cushion | Aluminum | 1/2 | NPT | Female | 6556K574 | 000000 |
| 7 1/2" | 15.67" | 23.17" | 962 | Not Sensor Ready | Adjustable Cushion | Aluminum | 1/2 | NPT | Female | 6556K302 | 000000 |
4 1/2" Bore Size (5 1/8" Wd.) | |||||||||||
| 7 1/2" | 14.67" | 22.17" | 1,590 | Not Sensor Ready | No Cushion | Aluminum | 1/2 | NPT | Female | 6556K613 | 000000 |
| 7 1/2" | 14.67" | 22.17" | 1,590 | Sensor Ready | No Cushion | Aluminum | 1/2 | NPT | Female | 4917K622 | 000000 |
Flange Bar Sets
Inside Mounting Holes | Outside Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Wd. | Ht. | Thick. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Each | |
| 1 1/4" | 2 3/4" | 5/8" | 3/8" | 2 | 1/4" | 1.281" | Yes | 2 | 1/4" | 2 5/16" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K17 | 000000 |
| 1 3/4" | 3.593" | 3/4" | 7/16" | 2 | 5/16" | 1.718" | Yes | 2 | 5/16" | 3.031" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K171 | 00000 |
| 2" | 3.593" | 3/4" | 7/16" | 2 | 5/16" | 1 7/8" | Yes | 2 | 5/16" | 3.031" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K172 | 00000 |
| 2 1/2" | 4" | 3/4" | 7/16" | 2 | 5/16" | 2.206" | Yes | 2 | 5/16" | 3 7/16" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K173 | 00000 |
| 3" | 4 1/2" | 3/4" | 7/16" | 2 | 5/16" | 2 5/8" | Yes | 2 | 5/16" | 3.969" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K174 | 00000 |
| 3 1/2" | 5 15/16" | 1" | 5/8" | 2 | 1/2" | 3.224" | Yes | 2 | 1/2" | 5 1/16" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K175 | 00000 |
| 4 1/2" | 7" | 1" | 5/8" | 2 | 1/2" | 4.024" | Yes | 2 | 1/2" | 6 1/16" | No | Steel | Four Screws, Four Washers, Two Flange Bars | 6491K176 | 000000 |
Front Flanges for Sensor-Ready Cylinders
Inside Mounting Holes | Outside Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Wd. | Ht. | Thick. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Each | |
| 3/4" | 2" | 1" | 1/4" | 4 | 0.219" | 3/4" | Yes | 4 | 0.219" | 1 1/2" | No | Steel | Four Screws | 6453K31 | 000000 |
| 1 1/8" | 2 1/2" | 1 1/2" | 1/4" | 4 | 0.219" | 1 1/8" | Yes | 4 | 0.219" | 2" | No | Steel | Four Screws | 6453K32 | 00000 |
Rear Flanges for Sensor-Ready Cylinders
Inside Mounting Holes | Outside Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Wd. | Ht. | Thick. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Each | |
| 3/4" | 2" | 1" | 1/4" | 4 | 0.219" | 3/4" | Yes | 4 | 0.219" | 1 1/2" | No | Steel | Two Screws | 6453K41 | 000000 |
| 1 1/8" | 2 1/2" | 1 1/2" | 1/4" | 4 | 0.219" | 1 1/8" | Yes | 4 | 0.219" | 2" | No | Steel | Two Screws | 6453K42 | 00000 |
Pivot Brackets
Mounting Holes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Pin Hole Dia. | Wd. | Ht. | Dp. | Base Plate Thick. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Each | |
| 3/4" | 0.25" | 1" | 3/4" | 1.188" | 3/8" | 2 | 0.154" | 3/4" | Yes | Steel | Two Screws | 6453K51 | 0000000 |
| 1 1/8" | 0.375" | 1 1/2" | 3/4" | 1 1/2" | 3/8" | 2 | 0.154" | 1 1/8" | Yes | Steel | Two Screws | 6453K52 | 000000 |
| 1 1/4" | 0.375" | 1 13/16" | 1 13/16" | 1 15/16" | 1/4" | 4 | 1/4" | 1.281" | Yes | Aluminum | Four Screws, Four Washers | 6491K81 | 00000 |
| 1 3/4" | 0.5" | 2 3/8" | 2 3/8" | 2 1/2" | 3/8" | 4 | 5/16" | 1.718" | Yes | Aluminum | Four Screws, Four Washers | 6491K82 | 00000 |
| 2" | 0.5" | 2 3/8" | 2 3/8" | 2 1/2" | 3/8" | 4 | 1/4" | 1 7/8" | Yes | Aluminum | Four Screws, Four Washers | 6491K179 | 00000 |
| 2 1/2" | 0.625" | 2 7/8" | 2 7/8" | 2 15/16" | 3/8" | 4 | 5/16" | 2.206" | Yes | Aluminum | Four Screws, Four Washers | 6491K83 | 00000 |
| 3 1/2" | 0.75" | 4 1/8" | 4 1/8" | 4" | 3/8" | 4 | 1/2" | 3.224" | Yes | Aluminum | Four Screws, Four Washers | 6491K85 | 00000 |
| 4 1/2" | 0.75" | 5 1/8" | 5 1/8" | 4 7/8" | 3/8" | 4 | 1/2" | 4.024" | Yes | Aluminum | Four Screws, Four Washers | 6491K86 | 00000 |
Clevis Brackets with Pin
Pin | Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Dia. | Lg. | Material | Wd. | Ht. | Dp. | Jaw Opening Wd. | Base Plate Thick. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Each | |
| 3/4" | 1/4" | 1.1" | Steel | 3/4" | 1" | 1 3/8" | 0.254" | 3/8" | 2 | 0.254" | 3/4" | Yes | Steel | Cotter Pin, Two Screws | 6453K61 | 000000 |
| 1 1/8" | 3/8" | 1.38" | Steel | 7/8" | 1 1/2" | 1 1/2" | 0.379" | 3/8" | 2 | 0.379" | 1 1/8" | Yes | Steel | Cotter Pin, Two Screws | 6453K62 | 000000 |
| 1 1/4" | 3/8" | 1 9/16" | Steel | 1 13/16" | 1 13/16" | 1 7/16" | 1/4" | 1/4" | 4 | 1/4" | 1.281" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K71 | 00000 |
| 1 3/4" | 1/2" | 1 9/16" | Steel | 2 3/8" | 2 3/8" | 1 7/8" | 1/2" | 3/8" | 4 | 5/16" | 1.718" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K72 | 00000 |
| 2" | 1/2" | 1 1/8" | Steel | 2 3/8" | 2 3/8" | 1 7/8" | 1/2" | 3/8" | 4 | 1/4" | 1 7/8" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K177 | 00000 |
| 2 1/2" | 5/8" | 1 15/16" | Steel | 2 7/8" | 2 7/8" | 2 5/16" | 1/2" | 3/8" | 4 | 5/16" | 2.206" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K73 | 00000 |
| 3" | 5/8" | 1 15/16" | Steel | 3 3/8" | 3 3/8" | 2 15/16" | 1/2" | 3/8" | 4 | 5/16" | 2 5/8" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K74 | 00000 |
| 3 1/2" | 3/4" | 2 1/4" | Steel | 4 1/8" | 4 1/8" | 3 1/16" | 1/2" | 3/8" | 4 | 1/2" | 3.224" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K75 | 00000 |
| 4 1/2" | 3/4" | 2 1/4" | Steel | 5 1/8" | 5 1/8" | 3 3/4" | 1/2" | 3/8" | 4 | 1/2" | 4.024" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | 6491K76 | 00000 |
Rod Clevis with Pin
Pin | Shank | Thread | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Size | Dia. | Lg. | Material | Lg. | Ht. | Jaw Opening Wd. | Center Lg. | Gender | Size | Type | Lg. | Material | Includes | Each | |
| 3/4" | 1/4" | 1.1" | Steel | 1.062" | 3/4" | 0.254" | 0.812" | Female | 1/4"-28 | UNF | 0.312" | Steel | Cotter Pin | 6453K63 | 000000 |
| 1 1/8" | 3/8" | 1.38" | Steel | 1 1/4" | 7/8" | 0.379" | 7/8" | Female | 3/8"-24 | UNF | 3/8" | Steel | Cotter Pin | 6453K64 | 00000 |
| 1 1/4" | 3/8" | 1 1/8" | Steel | 1.719" | 3/4" | 1/4" | 1 11/32" | Female | 3/8"-16 | UNC | 3/4" | Steel | Cotter Pin | 6491K61 | 00000 |
| 1 3/4" | 1/2" | 1 9/16" | Steel | 2.641" | 1 1/8" | 1/2" | 2 5/64" | Female | 3/4"-10 | UNC | 1" | Steel | Cotter Pin | 6491K801 | 00000 |
| 2", 2 1/2", 3" | 5/8" | 1 15/16" | Steel | 2.641" | 1 1/8" | 1/2" | 2 5/64" | Female | 3/4"-10 | UNC | 1" | Steel | Cotter Pin | 6491K63 | 00000 |
| 3 1/2", 4 1/2" | 3/4" | 2 1/4" | Steel | 3.078" | 1 1/2" | 1/2" | 2 21/64" | Female | 1"-8 | UNC | 1" | Steel | Cotter Pin | 6491K64 | 00000 |
