The SMS SMV-40 series of VMCs from GBI Cincinnati is said to be ideal for ultra-precise mold and die work as well as mixed-volume, short-run operations. It can also be used for dedicated high-volume applications.
With X-, Y- and Z-axis travels of 1,000, 520 and 505 mm, respectively, the VMC combines high-performance milling and large machining capacity within a footprint of 2,800 × 2,185 × 3,000 mm. The 1,150- × 520-mm table has a maximum table load of 500 kg, and five table T slots are standard.
Rapid traverse rates are 60 m/min. in the X and Z axes and 30 m/min. in the Y axis. Maximum acceleration of the three axes is as fast as 1G. Ballscrews in all three axes are pretensioned to increase accuracy.
An arm-type, dual, servo-driven ATC changes tools in 1 sec. With a 24-tool capacity, the ATC can accommodate a tool weight of 8 kg, length of 300 mm and a diameter of 80 mm.
The VMC includes versatile high-speed, linear guideways in the X and Y axes and box ways in the Z axis. Positioning accuracy is 8 µm. A high-torque, 18.5-kw, Fanuc spindle motor with direct drive permits full horsepower at low spindle speeds. The 40-taper spindle delivers 50 to 12,000 rpm with semi-ceramic bearings to minimize heat. The headstock has been specifically designed to provide rigidity and precision cutting.
Editor PickOkuma Receives ISO Certification for Quality Management
The company says it is the first and only CNC machine tool builder to earn this certification.