Hurco TMX10MYSi

The Hurco TMX10MYSi is the sub-spindle version of the TMX10MYi: a 260 mm (10.24 in) main spindle of 28 kW (37.6 hp), a second spindle rated 6,000 rpm and 15 kW (20.1 HP), a Y axis with 55 mm (2.17 in) of travel, and a 12-station BMT65 turret with 5,000 rpm driven tools. Bar up to 78 mm (3.07 in) passes the main spindle, and parts up to 315 mm (12.4 in) in diameter can be turned.

Against the TMX10MYi, the sub-spindle is the one functional addition. With it, a part cut off from the bar is picked up by the second spindle and its back face machined in the same cycle. On larger bar parts such as hydraulic fittings and manifold blanks, that second operation is often half the work, and doing it in the machine removes a handling step and a fixture.

The two spindles are sized differently. The main spindle gives 267.4 Nm (197 ft-lb) to 3,500 rpm; the sub-spindle 102.2 Nm (75.4 lb-ft) to 6,000 rpm. Back-side work should therefore be finishing, drilling and lighter turning rather than heavy roughing. The listed distance between centers is 825 mm (32.5 in), shorter than the 854 mm (33.6 in) of the TMX10MYi.

The sub-spindle adds weight: 7,700 kg (16,976 lb) against 7,250 kg (15,984 lb) for the TMX10MYi. Travels are 304.8 mm (12 in) on X, 670 mm (26.38 in) on Z and 740 mm (29.13 in) on W, with 12 m/min (472 ipm) Y rapids. Live tools are rated 6.3 kW (8.5 HP) and 27.6 Nm (20.4 lb-ft); the turret takes 25 mm x 25 mm shanks and 40 mm (1.57 in) boring bars. The control is Hurco WinMax, conversational plus NC.