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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.
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.
Connect mounts to an air cylinder to create linear, pivot, or arc movements. Mounts are compatible with NFPA tie rod air cylinders.
Sensor-Ready
Lg. | Air Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stroke | Retracted | Extended | Force @ 100 psi, lbf | Body Material | Bearing Material | Pipe Size | Thread Type | Gender | Each | |||
1 1/2" Bore (2" Wide) | ||||||||||||
| 13 1/2" | 18.88" | 32.38" | 177 | Aluminum | PTFE-Coated Cast Iron | 1/4 | NPT | Female | 6211K448 | 0000000 | ||
2" Bore (2 1/2" Wide) | ||||||||||||
| 13 1/2" | 18.88" | 32.38" | 314 | Aluminum | PTFE-Coated Cast Iron | 1/4 | NPT | Female | 6211K499 | 000000 | ||
2 1/2" Bore (3" Wide) | ||||||||||||
| 13 1/2" | 19" | 32.5" | 491 | Aluminum | PTFE-Coated Cast Iron | 1/4 | NPT | Female | 6211K541 | 000000 | ||
3 1/4" Bore (3 3/4" Wide) | ||||||||||||
| 13 1/2" | 20.25" | 33.75" | 830 | Aluminum | PTFE-Coated Cast Iron | 3/8 | NPT | Female | 6211K581 | 000000 | ||
4" Bore (4 1/2" Wide) | ||||||||||||
| 13 1/2" | 20.25" | 33.75" | 1,257 | Aluminum | PTFE-Coated Cast Iron | 3/8 | NPT | Female | 6211K622 | 000000 | ||
 |
Rod-Clevis-with-Pin Actuator Connection |
Rod Clevis—Rod clevises allow the front portion of cylinders to pivot.
Pin | Shank | Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Dia. | Lg. | Material | Lg. | Ht. | Jaw Opening Wd. | Ctr. Lg. | Gender | Size | Type | Spacing | Lg. | Material | Includes | Actuator Connection Hardware | Each | ||
| 3 1/4", 4" | 3/4" | 3.094" | Steel | 3 1/8" | 1 1/2" | 1 1/4" | 2 3/8" | Female | 3/4"-16 | UNF | Fine | 1.125" | Steel | Cotter Pin | Rod Clevis with Pin | 6211K66 | 0000000 | |
Adjustable Cushion Sensor-Ready
Lg. | Air Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stroke | Retracted | Extended | Force @ 100 psi, lbf | Body Material | Bearing Material | Pipe Size | Thread Type | Gender | Each | |||
4" Bore (4 1/2" Wide) | ||||||||||||
| 13 1/2" | 20.25" | 33.75" | 1,257 | Aluminum | PTFE-Coated Cast Iron | 3/8 | NPT | Female | 6258K457 | 0000000 | ||
 |
Front or Rear Flange Actuator Connection |
Front or Rear Flanges—Front or rear flanges are for straight, back-and-forth movements. These flanges mount to either end of your cylinder.
Inside Mounting Holes | Outside Mounting Holes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Wd. | Ht. | Thk. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Actuator Connection Hardware | Each | ||
| 4" | 6 1/4" | 4 1/2" | 5/8" | 4 | 0.406" | 3 21/64" | Yes | 4 | 0.438" | 5 7/16" | No | Steel | Four Bolts | Front Flange, Rear Flange | 6211K5 | 000000 | |
 |
Pivot-Bracket Actuator Connection |
Pivot Brackets—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.
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Pinhole Dia. | Wd. | Ht. | Dp. | Base Plate Thk. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Actuator Connection Hardware | Each | ||
| 4" | 0.75" | 4 1/2" | 4 1/2" | 2 3/4" | 5/8" | 4 | 0.40625" | 3 21/64" | Yes | Cast Iron | Four Bolts | Pivot Bracket | 6211K11 | 000000 | |
 |
Clevis-Bracket-with-Pin Actuator Connection |
Clevis Brackets—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.
Pin | Mounting Holes | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Dia. | Lg. | Material | Wd. | Ht. | Dp. | Jaw Opening Wd. | Base Plate Thk. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Actuator Connection Hardware | Each | ||
| 4" | 3/4" | 3.09" | Steel | 4 1/2" | 4 1/2" | 2 3/4" | 1 1/4" | 5/8" | 4 | 0.40625" | 3 21/64" | Yes | Cast Iron | Cotter Pin, Four Bolts, Four Lock Washers | Clevis Bracket with Pin | 6211K59 | 0000000 | |
|
Rod-Clevis-with-Pin Actuator Connection |
Rod Clevis—Rod clevises allow the front portion of cylinders to pivot.
Pin | Shank | Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Dia. | Lg. | Material | Lg. | Ht. | Jaw Opening Wd. | Ctr. Lg. | Gender | Size | Type | Spacing | Lg. | Material | Includes | Actuator Connection Hardware | Each | ||
| 3 1/4", 4" | 3/4" | 3.094" | Steel | 3 1/8" | 1 1/2" | 1 1/4" | 2 3/8" | Female | 3/4"-16 | UNF | Fine | 1.125" | Steel | Cotter Pin | Rod Clevis with Pin | 6211K66 | 0000000 | |
 |
For Bore Size | Includes | For Bearing Material | Each | ||
|---|---|---|---|---|---|
| 4" | Rod Seal, Rod Wiper, Two Piston Seals, Two Tube Seals | PTFE-Coated Cast Iron | 6258K715 | 0000000 |
 |
Reed Sensor |
AC Voltage, V AC | DC Voltage, V DC | Choose a Bore Size | Each | ||
|---|---|---|---|---|---|
| 120 | 120 | 1 1/2", 2", 2 1/2", 3 1/4", 4", 6" | 6258K78 | 000000 |
Tie Rod Air Cylinders
 |
Rods along the barrel of these cylinders secure the end caps and shield the barrel from impact.
Lg. | Air Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stroke | Retracted | Extended | Force @ 100 psi, lbf | Sensor Ready | Cylinder Cushion Type | Body Material | Pipe Size | Thread Type | Gender | Each | |||
2 1/2" Bore (2 7/8" Wide) | |||||||||||||
| 13 1/2" | 19.55" | 33.05" | 491 | Not Sensor Ready | None | Aluminum | 3/8 | NPT | Female | 6556K503 | 0000000 | ||
3" Bore (3 3/8" Wide) | |||||||||||||
| 13 1/2" | 19.55" | 33.05" | 707 | Not Sensor Ready | None | Aluminum | 3/8 | NPT | Female | 6556K542 | 000000 | ||
3 1/2" Bore (4 1/8" Wide) | |||||||||||||
| 13 1/2" | 20.67" | 34.17" | 962 | Not Sensor Ready | None | Aluminum | 1/2 | NPT | Female | 6556K581 | 000000 | ||
4 1/2" Bore (5 1/8" Wide) | |||||||||||||
| 13 1/2" | 20.67" | 34.17" | 1,590 | Not Sensor Ready | None | Aluminum | 1/2 | NPT | Female | 6556K619 | 000000 | ||
 |
Flange-Bar-Set Actuator Connection |
Inside Mounting Holes | Outside Mounting Holes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Wd. | Ht. | Thk. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Actuator Connection Hardware | Each | ||
| 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 | Flange Bar Set | 6491K173 | 000000 | |
| 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 | Flange Bar Set | 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 | Flange Bar Set | 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 | Flange Bar Set | 6491K176 | 000000 | |
 |
Pivot-Bracket Actuator Connection |
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Pinhole Dia. | Wd. | Ht. | Dp. | Base Plate Thk. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Actuator Connection Hardware | Each | ||
| 2 1/2" | 0.625" | 2 7/8" | 2 7/8" | 2 15/16" | 3/8" | 4 | 0.3125" | 2.206" | Yes | Aluminum | Four Screws, Four Washers | Pivot Bracket | 6491K83 | 000000 | |
| 3 1/2" | 0.75" | 4 1/8" | 4 1/8" | 4" | 3/8" | 4 | 0.5" | 3.224" | Yes | Aluminum | Four Screws, Four Washers | Pivot Bracket | 6491K85 | 00000 | |
| 4 1/2" | 0.75" | 5 1/8" | 5 1/8" | 4 7/8" | 3/8" | 4 | 0.5" | 4.024" | Yes | Aluminum | Four Screws, Four Washers | Pivot Bracket | 6491K86 | 00000 | |
 |
Clevis-Bracket-with-Pin Actuator Connection |
Pin | Mounting Holes | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Dia. | Lg. | Material | Wd. | Ht. | Dp. | Jaw Opening Wd. | Base Plate Thk. | No. of | Dia. | Ctr.-to-Ctr. | Mounting Hardware Included | Material | Includes | Actuator Connection Hardware | Each | ||
| 2 1/2" | 5/8" | 1 15/16" | Steel | 2 7/8" | 2 7/8" | 2 5/16" | 1/2" | 3/8" | 4 | 0.3125" | 2.206" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | Clevis Bracket with Pin | 6491K73 | 000000 | |
| 3" | 5/8" | 1 15/16" | Steel | 3 3/8" | 3 3/8" | 2 15/16" | 1/2" | 3/8" | 4 | 0.3125" | 2 5/8" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | Clevis Bracket with Pin | 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 | 0.5" | 3.224" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | Clevis Bracket with Pin | 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 | 0.5" | 4.024" | Yes | Aluminum | Cotter Pin, Four Screws, Four Washers | Clevis Bracket with Pin | 6491K76 | 00000 | |
 |
Rod-Clevis-with-Pin Actuator Connection |
Pin | Shank | Thread | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Size | Dia. | Lg. | Material | Lg. | Ht. | Jaw Opening Wd. | Ctr. Lg. | Gender | Size | Type | Spacing | Lg. | Material | Includes | Actuator Connection Hardware | Each | ||
| 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 | Coarse | 1" | Steel | Cotter Pin | Rod Clevis with Pin | 6491K63 | 000000 | |
| 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 | Coarse | 1" | Steel | Cotter Pin | Rod Clevis with Pin | 6491K64 | 00000 | |
