Ball-Lock Quick-Change Fixture Clamps
Build these components into fixture plates, machine subplates, and tombstones for quick changes. The system clamps and locates at the same time for accurate positioning with repeatability of ±0.0005". Components are compatible with Jergens Ball-Lock, Carr-Lane Carr Lock, and Kurt PinLock quick change systems.
For accurate positioning, at least two sets of clamps, liners, and receivers are required. Install the receivers in the base plate and the liners in the fixture plate. Then line up the two plates, insert the clamps, and tighten their screws to secure the fixture in place. If more holding capacity is needed, use additional clamps and receivers but omit liners to prevent the clamp from getting stuck in the fixture plate.
Push receiver plugs into unused receivers to prevent chips and coolant from accumulating during machining. When installed, plugs sit flush with the surface of the fixture plate. To remove, thread a screw into the tapped hole in the center and pull up.
Shank | Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Fixture Plate Thick. | Dia., mm | Lg. | Dia. | Thick. | Hex Key Size | For Fixture Plate Thick. Tolerance | Holding Capacity, lbs. | Material | Includes | Each | |
| 1/2" | 13 | 1.08" | 7/8" | 1/4" | 3/32" | -0.005" to 0.005" | 625 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 0000000 |
| 1/2" | 16 | 1.15" | 1 1/2" | 5/16" | 1/8" | -0.005" to 0.005" | 800 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| 3/4" | 13 | 1.33" | 7/8" | 1/4" | 3/32" | -0.005" to 0.005" | 625 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| 3/4" | 16 | 1.40" | 1 1/2" | 5/16" | 1/8" | -0.005" to 0.005" | 800 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| 3/4" | 20 | 1.53" | 1 3/4" | 3/8" | 1/8" | -0.005" to 0.005" | 2,250 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| 3/4" | 25 | 1.70" | 2" | 3/8" | 5/32" | -0.005" to 0.005" | 5,440 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| 1" | 20 | 1.78" | 1 3/4" | 3/8" | 1/8" | -0.005" to 0.005" | 2,250 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| 1" | 25 | 1.95" | 2" | 3/8" | 5/32" | -0.005" to 0.005" | 5,400 | Black-Oxide Steel | Hex Key, Set Screw | 0000000 | 000000 |
| For Fixture Plate Thick. | For Clamp Shank Dia., mm | OD | OD Tolerance Range | For Fixture Plate Thick. Tolerance | Material | Each | |
| 1/2" | 13 | 0.7518" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 000000 |
| 1/2" | 16 | 1.0018" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| 3/4" | 13 | 0.7518" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| 3/4" | 16 | 1.0018" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| 3/4" | 20 | 1.3772" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| 3/4" | 25 | 1.3772" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| 1" | 20 | 1.3772" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| 1" | 25 | 1.3772" | -0.0004" to 0" | -0.005" to 0.005" | Black-Oxide Steel | 0000000 | 00000 |
| For Min. Base Plate Thick. | For Clamp Shank Dia., mm | OD | Bolt Circle Dia. | OD Tolerance Range | Material | Number of Mounting Holes | Mounting Fasteners Included | Each | |
| 3/4" | 13 | 1.3750" | 0.984" | -0.0004" to 0" | Black-Oxide Steel | 3 | Yes | 0000000 | 000000 |
| 3/4" | 16 | 1.4370" | 1.125" | -0.0004" to 0" | Black-Oxide Steel | 3 | Yes | 0000000 | 00000 |
| 1" | 20 | 1.6873" | 1.362" | -0.0004" to 0" | Black-Oxide Steel | 3 | Yes | 0000000 | 00000 |
| 1 1/4" | 25 | 2.0623" | 1.644" | -0.0004" to 0" | Black-Oxide Steel | 3 | Yes | 0000000 | 00000 |
Quarter-Turn Quick-Change Fixture Clamps
Install these clamps into fixture plates, machine subplates, and tombstones to quickly swap components in or out of your machining setup. They lock or unlock with the turn of a knob. Since they locate while they clamp, you can accurately position components with repeatability of ±0.1".
For accurate positioning, use at least two sets of clamps and cam receptacles. Install receptacles into a base plate and clamps into a fixture plate. Line up the two plates, insert the clamps into the receptacles, then turn the knobs to secure your fixture in place. If you need more holding capacity, use additional clamps and receptacles.
Fastener-mount receptacles have three recessed holes on the face so you can secure them to your base plate with the included screws. Thread-in receptacles have a threaded body for installation in a tapped hole. You hold them in place with the included nut, so they’re good for thin base plates.
Use spacers for fixture plates that are less than 1/4" thick.
For Fixture Plate Thick. | Shank | Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min. | Max. | Dia., mm | Lg. | Material | Dia. | Thick. | Material | Knob Material | Holding Capacity, lbs. | Each | |
| 1/8" | 3/8" | 5 | 0.61" | Stainless Steel | 1" | 1/4" | Stainless Steel | Nylon Plastic | 10 | 00000000 | 000000 |
| 1/8" | 1/2" | 8 | 0.67" | Stainless Steel | 1 3/8" | 7/16" | Stainless Steel | Nylon Plastic | 20 | 00000000 | 00000 |
| 1/2" | 3/4" | 8 | 0.91" | Stainless Steel | 1 3/8" | 7/16" | Stainless Steel | Nylon Plastic | 20 | 00000000 | 00000 |
For Fixture Plate Thick. | Thread | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Min. | Max. | For Clamp Shank Dia., mm | Dia. | Thick. | Size | Pitch, mm | Material | Mounting Fasteners Included | Each | |
Fastener Mount | ||||||||||
| 3/8" | Not Rated | 5 | 1" | 3/8" | __ | __ | Nickel-Plated Steel | Yes | 00000000 | 000000 |
| 1/2" | Not Rated | 8 | 1 1/4" | 7/16" | __ | __ | Nickel-Plated Steel | Yes | 00000000 | 00000 |
Thread In | ||||||||||
| 1/4" | 3/8" | 5 | 1" | 5/8" | M14 | 1.5 | Nickel-Plated Steel | __ | 00000000 | 00000 |
| 1/4" | 1/2" | 8 | 1 1/4" | 11/16" | M20 | 1.5 | Nickel-Plated Steel | __ | 00000000 | 00000 |
