Air-Operated Collet Fixtures


Control clamping action with air. Use 5C collets (sold separately) to grip and release parts on milling machines and drill presses.
Mounting Holes | Air Inlet | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fixture Type | For Max. Workpiece Dia. | Dia. | Ht. | Max. Clamping Force, psi | Max. Air Pressure, psi | Material | No. of | Dia. | Mounting Orientation | No. of Air Ports | Connection Type | Pipe Size | Thread Type | Gender | Includes | Each | |
Fixture | 1 1/16" | 5 1/2" | 3 1/4" | 1,125 | 150 | Aluminum | 4 | 3/8" | Vertical | 2 | Hose | 1/4 | NPS | Male | __ | 0000000 | 0000000 |
Fixture, Foot Pedal, and Hose Kit | 1 1/16" | 5 1/2" | 3 1/4" | 1,125 | 150 | Aluminum | 4 | 3/8" | Vertical | 2 | Hose | 1/4 | NPS | Male | Air-Operated Fixture, Four-Way Foot-Operated Air Valve, Three 6-ft. Long Air Hoses | 0000000 | 000000 |
High-Density Air/Hydraulic-Operated Collet Fixtures




Push a button to clamp or release multiple workpieces on your milling machine or drill press. To create a high-density setup, mount these fixtures and join them together using two connector bushings (sold separately) for each fixture you want to add. These fixtures have a through hole for clamping long workpieces.
Air or hydraulic pressure opens and closes the collets (not included). A good choice for heavy machining, these fixtures provide a tighter hold than you can achieve with manual power. You can operate multiple fixtures with a single valve (not included) and two hoses—one for supply and one for return. All are double acting, so they need air or hydraulic pressure both to open and close. This means that the workpiece stays locked in place even if you lose pressure. Clamping force depends on the air or hydraulic pressure of your system.
Fixtures with a top-locking screw allow for direct access to make adjustments without disassembling your setup.
Pull-back fixtures have tapered walls that press all sides of the collet evenly to center the workpiece—like how a mechanical pencil grips lead. They’re less precise than fixed-length fixtures because the workpiece may shift slightly during clamping.
Fixed-length fixtures, also known as dead-length fixtures, keep the collet stationary while they clamp onto a workpiece. Use them to precisely machine holes, slots, and contours exactly where you need them. Since these fixtures position workpieces consistently, they’re often used for high-volume production runs. You can also rotate them on an indexer or rotary table without losing your reference point.
Collet Fixtures | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mounting Holes | Mounting Slot | Port | Connector Bushings | |||||||||||||||||||||
For Collet Type | For No. of Collets | For Max. Workpiece Dia. | Through Hole Dia. | Lg. | Wd. | Ht. | Max. Air Pressure, psi | Max. Hydraulic Pressure, psi | Max. Air-Powered Clamping Force, psi | Max. Hydraulic-Powered Clamping Force, psi | Material | No. of | Thread Size | Lg. | Wd. | No. of Ports | Pipe Size | Thread Type | Thread Gender | Includes | Each | Each | ||
Collet Fixtures with Locking Screw | ||||||||||||||||||||||||
Pull Back | ||||||||||||||||||||||||
5C | 1 | 1 1/16" | 1 3/16" | 4" | 4" | 3 1/2" | 150 | __ | 1,125 | __ | Aluminum | 4 | 3/8"-24 | __ | __ | 2 | 1/4 | NPT | Female | Collet Wrench | 0000000 | 0000000 | 0000000 | 000000 |
Pull Back—Flange Mount | ||||||||||||||||||||||||
5C | 1 | 1 1/16" | 1 3/16" | 6 1/2" | 4" | 3 1/2" | 150 | __ | 1,125 | __ | Aluminum | 4 | 3/8"-24 | 1" | 1/2" | 2 | 1/4 | NPT | Female | Collet Wrench | 0000000 | 000000 | 0000000 | 00000 |
Collet Fixtures with Top-Locking Screw | ||||||||||||||||||||||||
Fixed Length | ||||||||||||||||||||||||
1C | 1 | 1/4" | 5/16" | 1 3/4" | 1 3/4" | 1 7/16" | 250 | 750 | 180 | 545 | Aluminum | 4 | 10-24 | __ | __ | 2 | 1/8 | NPT | Female | Collet Wrench | 0000000 | 000000 | 0000000 | 00000 |
3C | 1 | 1/2" | 5/8" | 2 1/2" | 2 1/2" | 2 3/4" | 250 | 750 | 300 | 900 | Aluminum | 4 | 1/4"-20 | __ | __ | 2 | 1/8 | NPT | Female | Collet Wrench | 0000000 | 000000 | 0000000 | 00000 |
5C | 1 | 1 1/16" | 1 3/16" | 4" | 4" | 3 5/16" | 150 | 750 | 1,125 | 5,625 | Aluminum | 4 | 3/8"-16 | __ | __ | 2 | 1/4 | NPT | Female | Collet Wrench | 0000000 | 000000 | 0000000 | 00000 |
16C | 1 | 1 5/8" | 1 7/8" | 4" | 4" | 4 1/4" | 250 | 2,000 | 1,450 | 11,600 | Aluminum | 4 | 3/8"-16 | __ | __ | 2 | 1/4 | NPT | Female | Collet Wrench | 0000000 | 000000 | 0000000 | 00000 |