INDEX MS16C

The INDEX MS16C is a six-spindle CNC automatic for bar up to 16 mm (0.63 in). Each of its 6 work spindles runs to 10,000 rpm and is rated 8.7 kW at 100% and 15 kW at 25% duty (11.7 / 20.1 hp), with 10 Nm and 18 Nm (7.4 / 13.3 ft-lbf) of torque on the same split. INDEX adds that the speed limit depends on bar diameter, bar guide and clamping, so cutting data for full-size bar should be planned from the continuous figures rather than the peak.

The tooling is built from slides rather than turrets. Up to 5 cross slides each move 45 mm (1.77 in) in X and 70 mm (2.76 in) in Z, up to 5 drilling slides move 70 mm in Z, and up to 2 cut-off slides move 14 mm (0.55 in) in X. Two cut-off and back-boring slides with 94 mm (3.70 in) of X and 79 mm (3.11 in) of Z complete the front end. The integrated bar feed has a 70 mm (2.76 in) stroke, in position 6 and/or 1, which bounds how much bar one cycle can feed out.

For work on the cut-off end there are up to 2 synchronous spindles. Each clamps 16 mm (0.63 in), runs to 10,000 rpm, is rated 9.2 kW at 100% and 12 kW at 40% duty with 11 / 14 Nm, and has 140 mm (5.51 in) of Z travel. Rear-end tooling is 2 tools, or 3 of which 2 are driven, so a part that needs cross holes or flats on the back face should be checked against that count early.

The control is the INDEX C200 sl, based on the Siemens S840D sl, with teleservice, spindle stop and C-axis as standard. Multi-edge turning, tool monitoring and the transmit function are options. In maximum configuration, without bar guide or loading magazine, the machine measures 2,599 x 1,300 x 3,044 mm (102.3 x 51.2 x 119.8 in), weighs approx. 5,200 kg (11,464 lb) and consumes approx. 49 kW depending on I/O devices. The MS22-8 has the same 8.7 kW / 15 kW spindle rating at approx. 7,100 kg (15,653 lb), while the MS32C trades speed for torque with 8,000 rpm and 22 Nm at 100% / 40 Nm at 25% duty.