Cylinders

OKRJ

Rotary hydraulic cylinders OKRJ are used primarily to actuate closed centre power chucks. However, when used with open centre power chucks, they provide a partly open chucking system, which allows long workpieces to be pushed into the front of the lathe spindle. The modular construction of the OKRJ cylinder facilitates the addition of specific elements, such as a dynamic workpiece pressure control system or pipes for a water cooling system.

PZRJ

These are closed centre pneumatic cylinders for the actuation of closed and partly open centre power chucks. They are suitable for the same applications as the OKRJ cylinders, but, as air is used as the pressure medium, the gripping force range that can be generated with these cylinders is not as high as that of hydraulically powered cylinders.

OMHJ

OMHJ hydraulic cylinders permit maximum advantage to be made of the large bore hole found in FORKARDT power chucks. Optimized for use with the QLC chuck, this high performance cylinder can be used to actuate all FORKARDT power chucks.