The hydraulic compensation jaws from SCHUNK, the competence leader for gripping systems and clamping technology, set a new benchmark in hydraulic compensation jaws for low-deformation workpiece clamping. It is the first time that chuck jaws for compensating the workpiece clamping have successfully been combined with centrifugal force compensation, vibration-damping characteristics and micron-precise concentricity.

 

The integrated oil chamber system is a central feature, above which two oscillating clamping elements for clamping rough or finished parts are mounted. As they individually adapt to the workpiece, form tolerances in castings, for example, are reliably compensated. Compared to conventional 3-point clamping, the number of clamping points is doubled, which lowers the deformation of the workpiece and the obtainable roundness is significantly increased. 

 

At high speeds, the hydraulic clamping system automatically ensures centrifugal force compensation so that the clamping force is always reliably maintained. In order to minimise workpiece deformation, the clamping force can be considerably reduced in comparison with previous solutions without restrictions on process reliability.

 

For maximum precision on the component, the concentricity can also be adjusted micron-precisely on the chuck jaws. Additionally, the vibration-damping characteristics of the oil chamber system benefit the surface quality of the workpiece and the tool life. The hydraulic compensation jaws are suitable for low-deformation OD clamping of rough and finished parts and are available for all lathe chuck sizes and serration types.