Victor Taichung Vturn-40/325

The Victor Taichung Vturn-40/325 is a long-bed heavy lathe with 3,300 mm (129.92 in) of turning length. It carries the Vturn-40 headstock, an A2-11 spindle with a 15 in chuck that runs to 2,500 rpm and passes Ø91 mm (Ø3.58 in) bar.

One line of its table stands out. The 2 Axis machine weighs 17,000 kg (37,478.53 lb), but the C Axis machine is listed at 19,300 kg (42,549.16 lb) and the Y Axis machine at 19,500 kg (42,990.08 lb). On the shorter beds the same step costs a few hundred kilograms. The maker does not explain the jump, so anyone planning a foundation for a live-tool machine of this length should work from the larger figures.

Capacity otherwise follows the family. Maximum turning diameter is Ø620 mm (Ø24.4 in), Ø580 mm (Ø22.83 in) or Ø520 mm (Ø20.47 in) for the 2 Axis, C Axis and Y Axis columns, and the turret holds 10, 12 and 12 tools. Swing over the carriage is given as Ø620 mm (Ø24.4 in), Ø650 mm (Ø25.59 in) and Ø890 mm for the three.

Parts for a bed like this are propeller shafts, long rolls, columns and screws. A 2,500 rpm spindle is more than such work needs. What it does need is support, and the steady rest on the option list comes in manual and hydraulic versions.