High-precision power chucks for hard-turning
and finishing operations KCHS

The new lathes and turning centers available today are increasingly being used for the production of very exacting, high-precision work pieces. With precision requirements of 0,01 mm (.0004”), new chucking techniques must be capable of transmitting, within microns, the spindle precision of the machine to the work piece.

FORKARDT offers this micron precision capability within its present line of 3 KCHS power chucks. The unique design of this chuck is based on the proven FORKARDT wedge-hook principle and incorporates a high-strength aluminium alloy chuck body.

This chucking technique takes advantage of our advanced engineering capabilities and offers a more reliable and user friendly operation. Increased production and precision is obtained by this new standard of chucking, and specifically, because of its completely sealed, built in oil lubrication system, it creates a wear resistant environment and allows for a maintenance free operation. This means lasting quality during long term production machining.

Changing jaws without the need for reworking the clamping areas will lead to major gains in your production.

Lasting accuracy and wear free operation are accomplished because of the chucks completely sealed oil bath system.

Vibration problems encountered during hard turning operations can be controlled using the FORKARDT 3 KCHS chuck.

The design features of this chuck emphasize vibration damping properties. Many successful applications confirm the excellent suitability of this application for very demanding production processes.

High production turning operations with micron precision

This is accomplished with the 3 KCHS power chucks used for machinig hard and soft materials. The latest advancements in cutting tools permit the finish machining of even the hardest of materials which provides enhanced flexibility during the maching process.

Start-Stop dynamics is easy on the spindle

The lightweight technique of this chuck, successfully pioneered by FORKARDT yields a previously unobtainable small inertial mass. The small inertial mass of the 3 KCHS product line will provide lasting accuracies as it becomes an extension of the machine accuracy, resulting in more accurate manufacturing.

Clamping repeatability of less than 0,0025 mm (.0001 “)

The hardened and ground serrations assure a jaw change repeatability of 0,005 mm (.0002 “), eliminating the need for the time consuming rework of clamping areas.