Haas' moldmaking VM-2 VMC packs a 12,000-rpm, 40-taper spindle with an inline, direct-drive system that connects it directly to the motor. This results in less vibration, heat, and noise as compared with other drive systems. For thermal stability, coolant circulates through a jacket in the VM-2's head casting to remove spindle heat. The headstock's insulating material also prevents heat from affecting the casting, and air circulates through the entire assembly for additional cooling. An electronic thermalcompensation algorithm in the control automatically corrects for expansion that could cause positioning errors.
Haas Automation Inc.