The Clamping Principal:
The actuation of the pressure screws or the addition of the hydraulic medium activates the self-contained hydraulic system with the pressue transformation. The amount of acting clamping pressure can be identified and monitored via an integrated pressure indicator.

Advantages:
True Axial Clamping Pressure
Defined Clamping Pressure
Floating Clamping Surface
Part Remains in a Predefined Position
No Radial Forces exerted During Clamping

Hydraulic Retract:
Our hydraulic lock nuts are also available with hydraulic retract. Constructions with hydraulic retract reset the hydraulic pressure automatically to the zero/starting position as soon as the pressure breaks down.