“The best of both worlds” is how German tooling manufacturer GEWEFA describes its M96 and M96+ hydraulic chucks, which fit into any ER-driven tool quickly and effectively for conversion into a high-precision hydraulic holder. Availability in the UK and Ireland is through subsidiary company GEWEFA UK, which offers the products from stock in Germany.

Avoiding the limited clamping force, runout issues and lengthy tool change times associated with mechanical ER holders, the versatile M96/M96+ products give the machinist all the benefits of hydraulic clamping. These include higher and more consistent all-round gripping force, effective vibration damping, extended tool life, higher accuracy and improved surface finish on machined components. GEWEFA says all this is available at a much reduced cost compared with standard hydraulic chucks.

In addition, because the chucks simply mount in the output shaft of the ER driven tool and twist to seal, users can enjoy quicker and easier tool changes, saving time and increasing productivity.

The M96 is suitable for driven tools with an internal thread, while the M96+ is for driven tools with an external thread and is secured to the live tool with a locknut. GEWEFA’s new hydraulic chucks are available for sizes ER16, 20, 25, 32 or 40 (currently only the M96), accommodating tool diameters from 5 to 25 mm.

More information www.gewefa.co.uk