DN Solutions PUMA 3100M

The DN Solutions PUMA 3100M is a 12 inch chuck turning center with live tooling: a 12-station turret whose driven tools are listed at 4,000 RPM and 5.5 kW (7.4 hp). Maximum turning diameter is 481 mm and maximum turning length is 755 mm, with an 800 mm (31.5 in) swing over the bed and a bar capacity of 105 mm (4.13 in). The model is not in DN Solutions' current lineup and may be an older designation, so the figures here mostly serve someone looking at an existing machine.

The spindle figures are those of a large-bore, low-speed head. It has an A2-11 nose, a top speed of 1,500 RPM, 37 kW (50 hp) and a peak torque of 3,039 Nm (2,241 ft-lb). The PUMA 3100, a 12 in model of the same family, is listed at 2,800 rpm, 26 kW (35 hp) and 1,123 N·m (828 ft-lb), so this column trades nearly half the speed for far more torque. That suits heavy bar and shaft work: 105 mm (4.13 in) bar passes through the spindle, and the torque is there for large-diameter roughing in steel. It is less suited to small parts, where 1,500 RPM holds surface speed down.

Milling capability is modest and clearly stated. The driven tools have 5.5 kW (7.4 hp), enough for drilling, tapping, keyways and flats, not for heavy milling. A Y-axis of ±65 mm is listed as optional, so a given machine may or may not have it; without it, milled features are limited to the centreline. The control is a Fanuc 32i-B. Z rapid is 20 m/min (787 ipm), slower than the 30 m/min (1,181 ipm) of the PUMA 3100.

One figure deserves a second look before anything is planned around it. The weight is given as approximately 16,000 kg (35,274 lb), more than two and a half times the 5,850 kg (12,897 lb) of the PUMA 3100 with the same chuck size. Check the weight, the spindle and the Y-axis against the nameplate and documents of the specific machine before arranging rigging or quoting work. The table lists no X or Z travel and no footprint.