Functionality

On machines equipped with a clamping cylinder, the draw tube got conected via a draw tube adapter to the chuck. Resulting out of an axial movement of the draw tube, the piston got moved back- and forwards.

On the piston are mounted actuators with a wedge. The wedge of each actuator will grip into a groove of the master jaws and transfer the axial movement into a radial movement of the master jaws.