Matec VMC B

The Matec VMC B is the heavy-spindle version of MATEC's 3-axis VMC vertical machining centre. Where the VMC takes HSK63 or SK40 holders, the VMC B takes HSK100 or SK50, and MATEC's table gives it a single column of ranges rather than fixed sizes: 860 to 2,000 mm (33.9 to 78.7 in) in X, 600 to 1,000 mm (23.6 to 39.4 in) in Y and 600 to 800 mm (23.6 to 31.5 in) in Z.

The standard spindle runs to 6,000 rpm and is rated 18.5 kW (24.8 hp) and 160 Nm (118 lb-ft) at the short-duty rating, 15 kW (20.1 hp) and 90 Nm (66 lb-ft) continuous. Versions of 8,000 and 10,000 rpm are listed beside it. As on the VMC, a 2-speed gearbox with 365 Nm (269 lb-ft) at 8,000 rpm is optional, and for the larger taper that is the configuration that makes full use of the tooling.

Tool limits rise with the taper. On the VMC B a tool can be 350 mm (13.8 in) long and weigh 15 kg (33 lb), where the VMC allows 300 mm (11.8 in) and 7 kg (15 lb). The construction is the one MATEC describes for the whole series: machine base, column and table in grey cast, a box-frame structure calculated by FEA, roller linear guides in X, Y and Z, ball screw drives and a disc magazine with a dual gripper.

MATEC's table does not give the VMC B its own figures for table size, tool pockets, rapid traverse, footprint or weight. Those cells are shared with the largest VMC column, and it is not stated which of them hold across the VMC B's travel range. Ask MATEC for the table, magazine and weight that go with the travel you need. The standard control is the HEIDENHAIN TNC 640 HSCI, with SINUMERIK 828D sl listed as an option.