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Gewefa hydraulic chuck offers secure toolholding solution

Gewefa hydraulic chuck offers secure toolholding solution

Added to MTDCNC by Gewefa UK Limited on 08 October 2015

Gewefa has introduced a unique toolholding system for single point boring bars that utilises the proven tool grip features of a hydraulic chuck with the added advantage of guaranteeing fixed orientation when positioning the bar.

By eliminating the previously accepted method of securing boring bars by fitting an adaptor reduction sleeve into a VDI mechanical boring bar holder the opportunities for inaccuracy and bar deflection during boring operations are now greatly reduced.

With the new Gewefa solution the bar shank is directly clamped into a hydraulic chuck with the ground angle on the back end (of the bar) locating against a stop pin at the base of the toolholder.  This ensures precise central positioning and orientation with the bar then locked into the hydraulic chuck.

The advantages are a 50% increase in cutter life due to the more secure grip, guaranteed repeatability when changing like-for-like bars and a simple, fool proof fitting process.

The bar is precisely clamped at the all-important centre height by the hydraulic chuck clamping system which, with its vibration absorbing features, contributes significantly to improved surface finish and longer insert life.

As with all Gewefa toolholders, it is a universal solution and to accommodate various manufacturer’s back end configurations of boring bar, Gewefa has introduced the toolholder with ARNO, System Dieterle, DTS/HOBE/MAS/SUMITOMO/SANDVIK/ SIMTEK and VARGUS screw orientation options.

System ARNO is supplied with a 30 degree stop pin while system Dieterle has a 90 degree stop pin.

For further information contact the sales team at Gewefa on 01225 811666 or sales@gewefa.co.uk or visit the web site at www.gewefa.co.uk

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