HES External Honing Machine

Sunnen’s innovative external hone series HES continues the success of our well-known tube hone family and is designed to meet the ever-increasing demands of the industry. Over thirty years of experience, coupled with state-of-the-art design and solid, advanced engineering, characterize our HES. It’s dynamic rack-and-pinion stroke system and optimized spindle drive system ensure optimum and constant performance over the entire diameter range.

Our external hone machine cuts nearly all advanced materials without trouble, but of course also mild steels. Workpieces with electroplated hard chrome or plasma sprayed surfaces, for use in off shore applications and energy production sectors, are one of the typical applications for external honing. High and fast stock removal as well as perfect surface finish characterizes this machine. The HES is highly efficient and offers a non-comparable cost advantage over belt grinding systems. Sunnen provides the major advantages for your future production.