Eight-Axis Turn-Mill Center Machines Complex Workpieces

The Colchester-Harrison TT6 turn-mill center provides overlapped (twin turning) tool sequences to provide maximum optimized productivity. According to the company, even the most complex workpieces can be machined simply, accurately and without setup changes. Setup times are said to be reduced, while waiting time be

New Product From: 8/5/2008 Modern Machine Shop

The Colchester-Harrison TT6 turn-mill center provides overlapped (twin turning) tool sequences to provide maximum optimized productivity. According to the company, even the most complex workpieces can be machined simply, accurately and without setup changes. Setup times are said to be reduced, while waiting time between processes is said to be virtually eliminated, thereby minimizing floor-to-floor time. The eight-axis machine has twin 12-station turrets; two identical 20-hp (15 Kw) integrated spindle units; GE Fanuc servomotors and drives; and the Fanuc 31i-A CNC control, which has a high speed, low-power CNC processor, simple programming and operator prompts. A 10.4" LCD screen is standard.

To deliver the strength and rigidity necessary to absorb cutting forces and vibration, the 3-ton, 45-degree slant bed uses a Y-axis, wedge-angle configuration and 35-mm linear guides on all axes. The Sauter Red Line disc-type turret range has rugged housing, high spindle indexing and an extended neck for back turning tools, the company says. The tool drive has spindle orientation, with individually driven tools and radial tool mounting. Also featured is a compact Kessler Gamflor synchronous, high-torque spindle motor.

The turn-mill center features a turn diameter of 7" (175 mm); Z1-axis travel (maximum turned length) of 22.2" (563 mm); and Y1-axis travel of 3.15" (80 mm). Maximum spindle speed is 6,000 rpm, and maximum spindle torque is 100 Nm. The machine is offered with an MBF 1000T bar feeder; gantry system or robot loader; parts catcher; parts conveyor; and generic bar feeder interfaces.

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