1.

Clamping workpieces is performed automatically by hydraulic cylinder, and is sufficiently durable in heavy cutting as it has a strong clamping power.

2.

The indexing of 4×90° can be performed manually in state of the workpieces clamped.

3.

The outstanding characteristics of this chuck is its function of both side clamping(concentrical clamping). In case when the workpiece is either forged or casted and when the clamping is onesided, centers of raw material and machined area will not coincide. However, with this chuck, center of machined area and the center of raw material will become coincide each other due to its concentrical clamping.