Now available in the UK from Industrial Tooling Corporation (ITC) is the new Big Kaiser HSK-EZ15 Mega micro chuck. This latest Mega micro chuck collet version is specifically for applications involving smaller workpieces, such as watch components and other micro-parts.

Big Kaiser designed the HSK-EZ15 Mega micro chuck according to the HSK-EZ15 norm, a new interface used by the latest machine tools that replaces the previous ATC-E15 norm. The company says its HSK-EZ15 is compact and precise, enabling the miniaturisation of machine spindles. It also meets the micro-technology market’s precision, performance and reliability demands.

The new collet is available in three variations with 10, 12, and 14 mm outer diameters. Each is suited to high-speed machining with shaft diameters from 0.45 to 6.05 mm, maintaining a run-out accuracy of under 3 µm at 4xD. These collet holders can operate at speeds up to 80,000 rpm.

Big Kaiser’s Mega micro chuck provides high positional accuracy and repeatability. It features a slim body and nut, while its rigidity supports high-speed machining and reduced interference. The HSK-EZ15 has a notch-free nut for high-speed applications that prevents vibration and, in turn, offers superior balance and concentricity. Big Kaiser’s nut design also eliminates whistling noise and coolant splattering.

Giampaolo Roccatello, chief sales and marketing officer for Europe at Big Kaiser, says: “The HSK-EZ15 is an innovative way of integrating functions into small spindles that were previously only possible with much larger spindles, such as presetting outside the machine to save time and increase productivity. Big Kaiser was the first company to believe in this project and to develop an industrial tool holder that would allow these machines to be sold in series.”

More information www.itc-ltd.co.uk