DN Solutions PUMA GT 3100 LM

The DN Solutions PUMA GT 3100 LM is the long-bed milling variant of the GT 3100 turning center — a 12-inch chuck machine that steps up from the 2600 class in both rigidity and capacity. With 1,350 mm (53 in) of Z-axis travel, 1,245 mm (49 in) of max turning length, and 1,123 Nm (828 ft-lb) of spindle torque, it's built for shops that need to handle heavier, longer parts than the 2600 platform can manage.

The main spindle runs 26 kW (35 hp) at up to 2,800 RPM through a 12-inch (305 mm) chuck. That's a good balance between speed and torque — enough RPM for reasonable surface footage on mid-size diameters, with serious torque for heavy roughing in alloy steels and stainless. Max turning diameter is 376 mm (15 in), and the machine handles bar stock through the spindle bore.

The 12-station turret carries live tools at 5,000 RPM for C-axis milling operations. Cross-drilling, tapping, keyway cutting, and flat milling all happen in the turning setup. X-axis travel is 260 mm (10 in) with rapids at 24 m/min on X and 30 m/min on Z.

At 7,050 kg (15,543 lb), the GT 3100 LM is a substantial machine. That mass translates directly to stability on heavy cuts and reduced chatter on long workpieces. The footprint runs 4,465 mm (176 in) long by 2,394 mm (94 in) wide, so you'll need to plan your floor space, but it's still more compact than jumping up to the PUMA 4100 class.

The FANUC 0i-TF Plus control keeps things consistent with the rest of the PUMA lineup. This machine sits in the sweet spot for shops that have outgrown their 2600-class lathes but don't need the full heavy-duty capability of the 4100 or 5100 series. It's a natural fit for production turning of shafts, tubes, and cylindrical components in the 200-376 mm diameter range with lengths up to 1,245 mm.