2013 Mazak QTN-450II CNC Lathe

The Mazak QTN-450II, built in 2013, is a heavy-duty CNC lathe engineered for long-shaft and large-workpiece applications. It provides a substantial 33.3-inch swing over bed and 120-inch maximum turning length, with a 7.28-inch spindle bore and air-chuck system (front 18-inch SMW Autoblok and rear harness prep for optional rear chuck). Driven by a 50?horsepower spindle and controlled by Mazatrol Matrix Nexus (with 12.1-inch colour LCD, EIA/ISO input capability, and advanced geometric programming), the machine supports full programming flexibility. It incorporates a 12-position VDI driven turret, programmable tailstock, and a hydraulic SMW steady rest (2.5?to?9.25-inch capacity), along with a chip conveyor and automatic tool eye for automation.

Compared to conventional lathes, the QTN-450II reduces setup and cycle time with its long-bed turn-mill capability, live yaw-axis indexing (C-axis at 0.0001° resolution), and high-pressure coolant (213?psi). While many machines require multiple setups for long or heavy components, this machine enables single-setup accuracy and throughput—ideal for aerospace, energy transmission, or large-equipment part production.