Max. machining diameter : Ø 20 / Ø 32 / Ø 42 mm Max. turning length per chuck : 80 ~ 315 mm Number of O.D. tools : 6 / 5 Shank size of O.D. tools : □ 12 / □ 16 / □ 20 mm Number of I.D. tools : 4 / 5 Spindle speed : 10,000 / 7,000 / 6,000 rpm Spindle motor : 2.2 / 3.7 ; 5.5 / 7.5 kW ( cont. / 30 min. ) Sub-spindle speed : 6,000 / 7,000 / 8,000 rpm Sub-spindle motor : 1.5 / 2.2 ; 2.2 / 3.7 ; 3.7 / 5.5 kW ( cont. / 30 min. ) Rapids : 30 m/min.. Pour en savoir plus : https://goodwaycnc.com/exhtml_goodway/goodway_en/turning/swiss/sw/indetail.htm