Advantages: torsion free, purely axial generation of the clamping force high clamping forces in compact design, accurate repeatability long service life without constant pumping due to leakproof seal systems (short duty cycle of the pump) completely even distribution of the clamping forces resulting clamping force is independent of the stroke no friction in the thread since the Hydraulic Nut is not turned under load (no thread wear) quick and easy operation, even large number of Hydraulic Nuts with appropriate hand or motor pump SCHAAF-Hydraulic Nuts can be serviced by the customer on site (overhaul by our service department on request)