Ecoca MT-415MC

In the Ecoca MT-415MC, the milling spindle turns faster than the main one. Driven tools are listed at 3,200 rpm, while the 15 in (381 mm) chuck is limited to 2,500 rpm. That inversion is normal on a large-chuck turn-mill machine and it frames the job well: slow, heavy turning of big workpieces, followed by drilling, tapping and slotting without taking the part out.

The workpieces in question are long. This model is offered on five beds with 730 / 1,000 / 1,500 / 2,000 / 2,980 mm (28.7 / 39.4 / 59.1 / 78.7 / 117.3 in) of turning length. Re-fixturing a shaft of 2 metres or more on a milling machine means cranes, vee blocks and re-indicating. Doing the flats and holes in the lathe, with the part still between chuck and tailstock, removes that step and keeps the features true to the turned diameters.

Maximum turning diameter is 440 mm (17.3 in). The two-axis MT-415 reaches 510 mm (20.1 in), so the MC turret costs some radial room, as it does on the MT-412MC. Swing over the bed stays at 690 mm (27.2 in) and the main motor at 18.5/22 kW (24.8/29.5 hp).

Some details are left to the quotation. Ecoca gives no rating for the milling drive, lists no Y axis, and marks holders and sleeves for the living tool as optional. The weight row in the series table is misprinted, so ask for the weight of the chosen bed length. Standard equipment includes the hydraulic chuck, hydraulic tailstock, coolant and auto lubrication systems and a heat exchanger.