High-speed vertical-spindle chucking

摘要

3" or 4" diameter horizontal bar lathes running 6- or 12-foot bars for production machining are limited to running around 2,000 rpm. On the other hand, because Hardinge-EMAG VL machines are "true" chucking machines, they are capable of using the full rated spindle rpm-up to 7,500 rpm on the VL3. Faster spindle speeds and elimination of bar stock equates to more parts per hour.