ROMI C 570

With 1,500 mm (59.05 in) between centers and 570 mm (22.44 in) of swing over the bed, the ROMI C 570 is the middle model of the New Generation C Series and the one aimed at longer shafts. Its bed is 380 mm (14.96 in) wide, the same width as the bed of the larger C 670, while the C 470 below it sits on a 305 mm (12 in) bed.

The main motor is rated 15 hp / 11 kW. What that power turns into depends on the headstock. With the A2-6” nose the spindle reaches 3,000 rpm, has a 65 mm (2.56 in) bore and delivers 330 Nm (243 lb-ft). With the A2-8” nose the top speed falls to 2,200 rpm, the bore grows to 80 mm (3.15 in) and torque rises to 447 Nm (330 lb-ft). Even the lighter of the two gives roughly twice the torque of the C 470 with the same A2-6” nose, which lists 157 Nm (116 lb-ft).

A shaft can be 255 mm (10.04 in) in diameter over the cross slide and 510 mm (20 in) over the saddle wings. Travels are 280 mm (11.02 in) in X and 1,555 mm (61.22 in) in Z. The tailstock quill is 80 mm (3.15 in) in diameter with 130 mm (5.12 in) of stroke, and Romi lists a follow rest and open or closed steady rests for slender work.

Unlike the C 470, this lathe has no turret in its standard equipment. The 8-station horizontal automatic turret, with Romi or VDI-30 tool fixing, is an option, as are the rear tool holder and the 3-holder quick-change post. Budget for the tooling arrangement when comparing quotations. Control is the Siemens Sinumerik 828D, and the footprint is 3.65 m (143.7 in) x 1.49 m (58.66 in).