Chuck for Clamping Large Thin-Walled Parts

The clamping of thin-walled and easily deformed components is challenging, but the ROTA NCR precision 6-jaw compensation chuck from Schunk Inc. (Morrisville, NC) is a standard solution for this type of workpiece, with standardized sized diameters up to 1200 mm that create new possibilities for precision workpiece clamping with large lathe chucks.

The ROTA NCR uses a central chuck piston with three inner pendulums positioned at 120 deg. Each pendulum works in conjunction with three pairs of base jaws to provide 6-point contact. With clamping force points being aligned towards the chuck center of rotation, even pre-machined parts can be centered without deformation of the workpiece. This chuck is available in sizes of 165 mm, 200 mm, 250 mm, 315 mm, 400 mm, 500 mm, 630 mm, 800 mm, 1000 mm and 1200 mm diameters, and can be utilized on virtually any turning application.

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