Grob Mill-Turn Machining Center Provides Flexible Performance
The G550T mill-turn universal machining center offers optimized milling and turning performance for a broad range of part materials in one setup.
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Grob Systems Inc.’s G550T mill-turn universal machining center is capable of machining a part by milling and turning in a single setup.
The Grob-cycle power skiving NC user-cycle produces spur and helical internal and external gears at defined angles. According to Grob, power skiving is up to 10X faster when compared with shaping (internal gears) and up to 4X faster when compared with hobbing (external gears).
The G550T offers optimized milling and turning performance for a broad range of part materials, and is equipped with a Siemens 840D SL control, 14,500 rpm spindle and an HSK-T100 tool interface. For maximum stability and machining performance, the G550T features a mill-turn table with t-slots arranged in a star shape. Three linear and two rotary axes permit five-sided machining, as well as five-axis simultaneous interpolation, with a swivel range of 230 degrees in the A-axis and 360 degrees in the B-axis. The drive design is based on two symmetrically located ball screws and weight compensation in the Y-axis, and wear-free torque motors in the A- and B-axes.
The G550T includes a horizontal spindle position that permits the longest possible Z-travel path and optimum chip fall. The arrangement of three linear axes offers maximum stability by minimizing the distance between the guides and the machining point (TCP). The G550’s tunnel concept enables the largest possible component to be swiveled and machined within the work area without collision — even with extremely long tools.
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