DN Solutions Puma VT900

The DN Solutions Puma VT900 is a 24 in chuck turning center whose listed figures, including a 2,000 kg (4,400 lb) table load and a footprint taller than it is long, are those of a vertical lathe. Maximum turning diameter is Ø900 mm (35.4 in) and maximum turning length is 850 mm (33.5 in). The spindle is listed at 45 kW (60 hp) and 4,443 N·m (3,276 ft-lb) with a top speed of 1,800 rpm. The model is not in DN Solutions' current lineup and may be an older designation from the years before 2022, when the company was called Doosan Machine Tools, so this page mainly serves someone assessing an existing machine.

The figures describe a short, upright machine for disc-shaped work. X travel is 470 mm (18.5 in) and Z travel is 850 mm (33.5 in). The footprint is 2,130 × 3,050 × 3,621 mm (84 × 120 × 143 in), length by width by height, so the check that matters on installation is headroom and crane hook height, not floor length. Weight is 12,500 kg (27,550 lb).

Loading is the argument for a vertical layout at this diameter. A heavy ring, brake disc, wheel or flange is lowered onto the chuck and sits flat under its own weight while it is clamped. The horizontal PUMA 700 II covers the same 900 mm (35 in) turning diameter with a 24 in chuck, but it is a shaft machine: 1,600 mm (63 in) of turning length, 55 kW (74 hp), 8,076 N·m (5,957 ft-lb) and 16,500 kg (36,376 lb). The VT900 has roughly half that torque, and more speed at 1,800 rpm against 1,500 rpm for the PUMA 700 II.

The turret has 12 stations and takes boring bars up to Ø80 mm (3 in). The row labelled spindle taper reads BMT-KEY, which is a turret tooling designation, so treat it as the tool interface. No live tool speed is listed. Rapid traverse is 20 m/min (787 in/min), and the control is a Fanuc 0i-Plus with a 15-inch iHMI touchscreen. Confirm the chuck, the control and the turret tooling on the specific machine, since equipment varies from one machine to the next.