Mazak’s HCN 8800-II HMC is built to meet the needs of high productivity for large parts production. It offers a 60-tool storage magazine and a 10,000-rpm, 50-hp integrated spindle/motor generating as much as 900-foot-pounds (1,218-Nm) of torque. Options include 8,000-rpm/50-hp and 16,000-rpm/50-hp spindles. The machine’s 11.5-ton base and column are extremely rigid in construction and are designed specifically to accommodate the high level of torque, the company says.
Features include a larger work area, longer tool length and axes strokes than the previous model. The HMC has a maximum work size of 57.09" × 57.09" (1,450 × 1,450 mm) and a maximum workpiece weight of 4,850 lbs (2,200 kg). Its strokes are 55.12" (1,400 mm) on the X axis (3.94" longer than the previous model), 47.24" (1,200 mm) on the Y (3.94" longer) and 52.17" (1,325 mm) on the Z (12.8" longer). Linear roller guides on each axis ensure straight, low-friction movements.
With rapid traverse rates of 2,362 ipm (60 m/min); acceleration/deceleration at 0.5 G; a tool change time of 5 seconds; and a maximum tool length of 34.8" (630 mm), the HMC has the flexibility to deliver increased productivity across a wide range of industries and applications, the company says.
Lubrication inlets, air valves and other units are centrally located for convenient machine maintenance. The control panel has been moved from the right side of the operator to the left side so that the operator can check the machining area by a slight move of the head. Energy conservation is promoted by using the machine’s standby mode. When the machine stops for a certain length of time, the machine automatically stops the hydraulic unit, spindle chiller, chip conveyor, spiral conveyor, lubrication pump, coolant pump and machining work area light.