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Haas has introduced ST-20 Series Y-axis turning centers that provide 4" of Y-axis travel (±2" from the centerline) for off-center milling, drilling, and tapping, and come standard with high-torque live tooling and a servo-driven C axis for versatile 4-axis capability. The machines are available in standard and Super Speed configurations. The ability to turn and mill complex parts and perform multiple operations on one machine increases throughput, reduces handling, and improves accuracy, the company notes.
The Super Speed ST-20SSY has a maximum cutting capacity of 10" x 21", and is equipped with a 24-station hybrid BOT/VDI turret. The A2-6 spindle turns to 5000 rpm, and features an 8.3" hydraulic chuck and a 2.0" bar capacity. A 30 hp vector drive system yields 140 ft-lb of torque.
The standard ST-20Y has a maximum cutting capacity of 12" x 21", and is equipped with a 12-station hybrid BOT/VDI turret. The A2-6 spindle turns to 4000 rpm, and features an 8.3" hydraulic chuck and a 2.0" bar capacity. A 20 hp vector drive system yields 150 ft-lb of torque.
Both machines provide a maximum swing of 31.75" over the front apron, with a 20.75" swing over the cross slide. Standard equipment includes high-torque live tooling with C axis, rigid tapping, spindle orientation, a 15" color LCD monitor, and a USB port. Available high-productivity options include a belt-type chip conveyor, automatic tool probe, automatic parts catcher, high-pressure coolant systems, and more.