EMAG VT 4

The EMAG VT 4 is a shaft-turning machine for parts up to 200 mm (8 in) in diameter, 630 mm (25 in) long and 40 kg (88 lb) in weight, with a C-axis as standard. The spindle runs to 4,500 rpm on a 250 mm (10 in) chuck, and the axes give 395 mm (15.5 in) of X and 810 mm (32 in) of Z.

The weight limit is the figure to read first. A solid steel bar at the full diameter and length would be far heavier than 40 kg, so the full envelope is meant for stepped, hollow or lightly built shafts. Heavy forged blanks may run into the weight rating well before they reach 200 mm or 630 mm. Weigh the raw part, not the finished one.

The standard C-axis is the other point that sets the VT 4 apart on paper. It lets the spindle hold an angular position, so cross holes, flats and other off-axis features can be added in the same setup as the turning. EMAG's table for this model does not give a driven-tool speed or a turret station count, though, so the C-axis on its own says nothing about how much milling the machine can do. Ask for the tooling package before quoting milled features.

Power and torque are listed as 38/29 kW (51/39 hp) and 250/200 Nm (184/148 ft-lb), two values each with no duty cycle named on this table. The VT 200 is listed with the same 250 mm chuck, 395 mm X, 810 mm Z, 4,500 rpm and 38/29 kW. The VT 2 is the step down: a 160 mm (6.5 in) chuck, 6,000 rpm and 130/90 Nm (96/66 ft-lb), with a 210 mm (8.5 in) swing against 270 mm (10.5 in) here.