DN Solutions PUMA 4100 MC

The DN Solutions PUMA 4100 MC is the biggest-chuck option in the standard-bed 4100 lineup, packing a 21-inch (533 mm) chuck with 2,432 N-m (1,794 ft-lb) of torque into a machine that handles large chucking work without needing the long-bed footprint. If you're gripping heavy castings, large-diameter forgings, or thick flanges that need serious jaw pressure and cutting force, the MC is built for it.

The 37 kW (50 hp) spindle drives through high-torque gearing to reach 1,500 RPM max. At 21-inch diameters, that's roughly 6,300 SFM at the OD — plenty for steel and most alloys. The 2,432 N-m of torque is the same as the long-bed LMC, giving you identical roughing authority in a shorter machine.

Max turning diameter is 550 mm (22 in) and turning length is 938 mm (37 in). That's the shortest turning length in the 4100 family, but for the heavy chucking work this machine targets, most parts are wider than they are long. Axis travels are 352 mm (14 in) on X and 1,105 mm (44 in) on Z with 16/20 m/min rapids.

The 12-station turret with 4,000 RPM live tooling handles cross-drilling, tapping, and milling. Having live tooling on a 21-inch chuck machine means you can put bolt holes, keyways, and cross-features on heavy flanges and housings without moving them to a machining center.

At 10,600 kg (23,369 lb), the MC sits between the MA and LMA in weight. The FANUC 0i-TF Plus control manages the turning and milling operations with the same interface used across the entire PUMA 4100 range.

For shops doing heavy-duty large-diameter chucking work where the standard bed length is sufficient, the MC delivers the most torque and gripping capability in the most efficient footprint.