Operating principle
Clamping unit Ratio-Clamp®
The clamping unit Ratio-Clamp® works on the principle of frictional contact.
As long as the hydraulic release pressure is applied, the rod can be moved freely in both directions. Only the seal friction needs to be overcome.
When the release pressure is removed, the force stored in the springs is released, causing the rod to be clamped.
This is done either by controlled pressure reduction or, in the event of a pressure failure, by emergency shutdown, power failure or system damage.
The clamping remains engaged indefinitely without additional energy supply. By applying release pressure, the clamping is opened, and the piston rod becomes freely movable again.
The clamping unit Ratio-Clamp® is not a brake and must not be used as such in continuous operation. In the event of an occasional emergency, for example in the event of an emergency stop, braking with brief slippage is also permissible from a moving state.