DN Solutions PUMA 5100 LB
Key Specifications
Max Spindle
Tool Capacity
Spindle Power
Max Turn Length
chuck size
max turning diameter
Overview
The DN Solutions PUMA 5100 LB combines the heavy-duty 5100 platform's 650 mm swing with a 21-inch chuck and over 2 meters of turning length. It's the long-bed, big-bore option for shops that need maximum clamping force and extended reach in a single machine. When your parts are large in diameter, heavy, and longer than a short-bed lathe can handle, the LB is where you land.
The spindle pushes 45 kW (60 hp) and delivers 4,041 Nm (2,980 ft-lb) of torque through the 21-inch chuck at speeds up to 1,500 RPM. That's the same heavy-duty spindle package found in the short-bed 5100 B, now paired with 2,155 mm of Z-axis travel for 2,042 mm (80 in) of usable turning length. You've got the grip, the power, and the reach to handle large forgings, heavy rollers, and long industrial components.
Box-way construction on both axes ensures the rigidity this class of work demands. X-axis travel is 362 mm, and rapids run at 16 m/min on X and 20 m/min on Z. The 10-station turret covers production tooling needs, and the FANUC control provides the reliability and familiarity that shops depend on.
At 12,050 kg (26,566 lb), the 5100 LB needs solid floor prep and a proper rigging plan. The 5.9-meter overall length means you'll need to plan your shop layout around it. But that mass and footprint are the cost of turning large, heavy parts with confidence. The box ways, the spindle torque, and the 21-inch chuck all work together to keep tolerances tight even when you're taking aggressive cuts on demanding materials. Specs sourced from DN Solutions published data.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 21 inch |
| Max Turning Diameter | 650 mm |
| Max Turning Length | 2042 mm |
| X Axis Travel | 362 mm (14.3 in) |
| Z Axis Travel | 2,155 mm (84.8 in) |
| Rapid Traverse X | 16 m/min (630 in/min) |
| Rapid Traverse Z | 20 m/min (787 in/min) |
| Max Spindle Speed | 1,500 RPM |
| Spindle Motor Power | 45 kW (60 hp) |
| Spindle Torque | 4,041 Nm (2,980 ft-lb) |
| Tool Capacity | 10-station turret |
| Machine Weight | 12,050 kg (26,566 lb) |
| Machine Length | 5,879 mm (231.5 in) |
| Machine Height | 2,272 mm (89.4 in) |
| Machine Width | 2,275 mm (89.6 in) |
| CNC Control | FANUC |
| Metric | IMPERIAL |
| Capacity | Chuck sizeMax. Turning DiameterMax. Turning Length |
| Travels | X-Axis Rapid TraverseZ-Axis Rapid TraverseX-Axis Travel DistanceZ-Axis Travel Distance |
| Main Spindle | Max. Spindle SpeedMax. Spindle PowerMax. Spindle Torque |
| Turret | No. of tool station |
| Dimensions | LengthHeightWidthWeight |
| Favorites | PUMA 5100XLC |
Specifications sourced from dn-solutions.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 21-inch chuck with 4,041 Nm torque provides massive clamping and cutting power for heavy workpieces
- 2,042 mm turning length handles long shafts, rollers, and heavy industrial components
- 45 kW (60 hp) spindle handles aggressive roughing in tough materials without stalling
- 650 mm swing accommodates large-diameter forgings and castings
- Box-way construction delivers superior rigidity and vibration damping
- 12,050 kg machine mass contributes to cut stability on demanding applications
- FANUC control with proven reliability and widespread parts and service support
Limitations
- 1,500 RPM spindle speed limits small-diameter and aluminum work
- 5.9 meter footprint requires significant floor space commitment
- No live tooling or Y-axis — strictly 2-axis turning
- 10-station turret may limit tool variety on complex jobs
- Over 12,000 kg demands reinforced flooring and professional rigging
Best For
Frequently Asked Questions
01
The LB steps up to a 21-inch chuck with 4,041 Nm torque at 1,500 RPM, versus the LA's 15-inch chuck with 3,280 Nm at 2,000 RPM. Turning lengths are similar. The LB also has a more powerful 45 kW spindle versus 37 kW. Choose the LB when maximum clamping force and torque are priorities.
02
New PUMA 5100 LB machines typically run $180,000-$240,000 depending on options. The 21-inch chuck and long bed command a premium. Used machines sell in the $80,000-$145,000 range depending on condition and hours.
03
Yes. A hydraulic steady rest is available and strongly recommended for long parts. With over 2 meters of turning length, workpieces with high length-to-diameter ratios will benefit from steady rest support to prevent deflection.
04
The 5100 LB provides significantly more swing (650 mm vs 550 mm), spindle power (45 kW vs 35 kW), and torque (4,041 Nm vs 2,379 Nm). Both use long-bed configurations with similar turning lengths. The 5100 LB is the right choice when your parts exceed the 4100's capacity.
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