DN Solutions PUMA GT 3100 M

The DN Solutions PUMA GT 3100 M is the standard-bed milling variant in the GT 3100 turning center platform. It takes everything that makes the 2600 class popular and sizes it up — bigger 12-inch chuck, more torque, heavier castings — for shops that need to handle stockier parts with more clamping force. If you've been pushing your 2600-class lathe to its limits on diameter or material toughness, the GT 3100 M is the natural next step.

The spindle puts out 26 kW (35 hp) with a whopping 1,123 Nm (828 ft-lb) of torque at up to 2,800 RPM. That torque figure is what matters here — it's nearly double what the 2600 class delivers, and it means you can take aggressive cuts in 4340, stainless, and Inconel without the spindle crying for mercy. The 12-inch (305 mm) chuck handles parts up to 376 mm (15 in) diameter with 725 mm (29 in) of turning length.

Z-axis travel is 830 mm (33 in) and X runs 260 mm (10 in), with rapids at 24 m/min and 30 m/min respectively. The 12-station turret carries live tools at 5,000 RPM for C-axis milling operations. You can handle cross-holes, keyways, flats, and tapping right in the turning setup.

At 5,650 kg (12,456 lb), the GT 3100 M has serious mass behind it. The footprint is 3,865 mm (152 in) long by 2,102 mm (83 in) wide — bigger than a 2600 but still manageable in most shop layouts. The FANUC 0i-TF Plus control doesn't need introduction.

The GT 3100 M sits in that productive middle ground for shops running medium-to-heavy turned parts that need more than a 2600 can offer but don't justify the jump to a PUMA 4100. Think flanges, large couplings, bearing housings, and gear blanks in the 250-376 mm diameter range.