Type HPZ pneumatic clamping units
for drawback collets (especially suited for applications using short workpiece)
| art. no. | A | L | H | B | D | E | F | S | collet type | through bore | weight kg |
| HPZ 11 | 100 | 102 | 50 | 80 | 80 | 80 | 10 | M 8 | 367 E | 22 | 5,0 |
| HPZ 17 | 126 | 119 | 63 | 100 | 100 | 100 | 13 | M 10 | 390 E | 38 | 9,0 |
for deadlength collets (for steel and rubber collets)
| art. no. | A | L | H | B | D | E | F | S | collet type | rubber collets | through bore | weight kg |
| HPZ 15 | 80 | 102 | 40 | 60 | 72 | 60 | 10 | M 6 | 140 E | series 12 | 18 | 3,5 |
| HPZ 20 | 100 | 105 | 50 | 80 | 88 | 80 | 10 | M 8 | 148 E | series 18 | 24 | 5,0 |
| HPZ 25 | 100 | 105 | 50 | 80 | 88 | 80 | 10 | M 8 | 161 E | series 20 | 26 | 5,0 |
| HPZ 40 | 126 | 124 | 63 | 100 | 112 | 100 | 13 | M 10 | 173 E | series 36 | 42 | 9,5 |
| HPZ 60 | 166 | 134 | 83 | 126 | 128 | 126 | 20 | M 10 | 185 E | series 52 | 60 | 18,0 |
Type HPZ
| art. no. | clamping power kp | torque at ... ø |
| HPZ 11 | 500 | 50 Nm at 22 ø |
| HPZ 17 | 1000 | 50 Nm at 22 ø |
| HPZ 25 | 800 | 50 Nm at 22 ø |
| HPZ 40 | 1500 | 50 Nm at 22 ø |
| HPZ 60 | 2500 | 50 Nm at 22 ø |
- drawback collets are especially suited for applications using short workpieces
- allows close length tolerances to be reached regardless of variations in the diameter of the workpieces being used
- mechanical power transmission
- high clamping power
- hardened and ground housing
- suitable for pallets or rotary-indexing tables
The mechanical power transmission is designed in a way, that when clamped, the chucks are self-locking. Automatic locking only works within a small range. That means only workpieces within a tolerance range of IT 9 can be clamped safely. When the self-locking feature is set, the collet’s axial position will change. This is especially important when several units have been mounted at the same height. In this case stops shouldn’t be mounted in the collet. Due to the self-locking device, compressed air is required for clamping and release.
Clamping power:
The clamping power of the type HPZ units is difficult to quote as the clamping effect is dependent on the material, the hardness and the surface of the workpiece. The table therefore gives values for reference purposes only.
