Toolholding System Offers Greater Clamping Range

Designed to provide a greater clamping range, the powRgrip PG 32 system uses a toolholder and collet to generate a high clamping force while still maintaining a TIR of less than 0.0001", the company says. The toolholding system enables users to clamp tool shanks to 1" in diameter, an increase from the previous maximum clamping capacity of 0.75". Additionally, the system is suited for high speed machining applications and offers a wide taper selection, including CAT, BT, HSK and TC versions. According to the company, the system is balanced by design, improving part quality and surface finish and lowering manufacturing costs.   The collet is inserted into the holder using a tabletop mini-press that generates nine tons of force. Available in metric and inch diameters to 1" (25 mm), the system relies on the interference between the holder and collet to create its clamping force. Unlike other clamping systems in which heat or hydraulics are used to expand the material, this system uses the mechanical properties of the holder material to generate gripping force with runout below 0.0001". Designed for easy operation and use, the system can press a tool or remove it from the holder in less than 10 seconds, the company says. Because no heat is used, tools are usable immediately after a tool change.