The clamping of thin-walled and easily deformed components can be difficult. Schunk offers the 6-jaw ROTA NCR for this challenging clamping scenario; with standard chuck diameters ranging from 165mm to 1,200mm diameters for large workpieces.
Three pairs of radially compensating jaws equally distribute the chuck clamp force about the circumference of the workpiece, with 6 points of contact, as opposed to the conventional 3-point clamping profile found with 3-jaw chucks.
Even rough castings or rings can be centered with minimal distortion to the workpiece. The NCR can also easily be switch from compensating to centric clamping mode by simply tightening a bolt under the center cover plate of the chuck.
The NCR also can be outfitted with optional centrifugal force compensation and has provisions for coolant and air media pass-through. As standard features, the NCR includes optimized internal greasing system, hardened chuck body, and hardened and ground internals. The NCR is available in diameters of 165mm, 200mm, 250mm, 315mm, 400mm, 500mm, 630mm, 800mm, 1,000mm, and 1,200mm with serrated or metric tongue and groove base jaw interfaces.