4-sided workholding tower with integrated UNILOCK clamping modules EFM 138. The integrated clamping modules enable the rapid clamping or exchange of clamping equipment and fixtures on the workholding tower. Set-up times are reduced and machine running times increased.

Workholding tower GJL 300.
Clamping module case-hardening steel.

Workholding tower contact faces precision machined.
Clamping module contact faces hardened and ground.

These 4-sided workholding towers conform to machine tables for machine tools acc. to DIN 55201 and JIS6337-1980.

The clamping modules are actuated via a central pneumatic connection.
The high clamping forces are generated via the integrated spring package (the unit clamps while not under pressure).
Clamping is released pneumatically.

The following clamping forces are possible with the UNILOCK clamping bolt in conjunction with M10, M12, M16 fastening screws:
- Clamping force (M10) 35,000 N/module
- Clamping force (M12) 50,000 N/module
- Clamping force (M16) 75,000 N/module
Clamping force with DIN EN ISO 4762 -12.9 cap screws

Clamping bolts may only be clamped in conjunction with a mounted interchangeable unit in the clamping module.

+5 °C to +60 °C.

- Workholding tower
- Transport screws.
- Operating instructions.

- UNILOCK clamping pin 42208.
- UNILOCK interchangeable subplates for zero-point clamping system 42755.
- UNILOCK protective bolt for clamping module 42796.
- UNILOCK protective plug for clamping module 42796.