DN Solutions PUMA 4100 MB
Key Specifications
Max Spindle
Spindle Power
Max Turn Length
chuck size
max turning diameter
x axis travel
Overview
The DN Solutions PUMA 4100 MB is the standard-bed, 15-inch chuck variant of the PUMA 4100 series. It pairs the bigger chuck with a high-torque spindle setup that delivers 1,611 N-m (1,188 ft-lb) — perfect for shops gripping larger-diameter stock that needs serious cutting force. The standard bed keeps the turning length at 978 mm (39 in), which is plenty for most chucking work and moderate shaft lengths.
The spindle runs 30 kW (40 hp) at up to 2,000 RPM. Like the long-bed LMB, the gearing favors torque over speed. At 15-inch chuck diameters, you rarely need more than 2,000 RPM — the surface speed at the OD is already well within productive ranges for steel and stainless. The 1,611 N-m of torque means you can push DOC and feed rates without the spindle loading up.
Max turning diameter is 550 mm (22 in) with 978 mm (39 in) of turning length. 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 runs live tooling at 4,000 RPM.
At 10,100 kg (22,267 lb), the MB is 500 kg heavier than the MA due to the larger chuck and gearing package. The footprint stays the same. Foundation requirements are similar between the two — if you've got the floor for a PUMA 4100, both variants work.
This machine targets shops where 15-inch is the standard chuck size for production work. Large flanges, heavy couplings, thick-wall pipe ends, and medium-sized forgings are all fair game. The torque advantage over the 12-inch MA makes a noticeable difference in cycle time when you're roughing heavy stock.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 15 inch |
| Max Turning Diameter | 550 mm |
| Max Turning Length | 978 mm |
| X Axis Travel | 352 mm (14 in) |
| Z Axis Travel | 1,105 mm (44 in) |
| Rapid Traverse X | 16 m/min (630 ipm) |
| Rapid Traverse Z | 20 m/min (787 ipm) |
| Max Spindle Speed | 2,000 RPM |
| Spindle Motor Power | 30 kW (40 hp) |
| Spindle Torque | 1,611 N-m (1,188 ft-lb) |
| Turret Stations | 12-station with live tooling |
| Rotary Tool Speed | 4,000 RPM |
| Machine Weight | 10,100 kg (22,267 lb) |
| CNC Control | FANUC 0i-TF Plus |
| 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 stationRotary Tool r/min |
| No Of Tool Station | Rotary Tool r/min |
| Dimensions | LengthHeightWidthWeight |
| Favorites | PUMA 5100XLMB |
| 12 Ea | 4000 RPM |
Specifications sourced from dn-solutions.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 1,611 N-m (1,188 ft-lb) torque excels at heavy roughing on large-diameter stock
- 15-inch chuck securely grips larger parts that outgrow 12-inch machines
- Standard-bed footprint saves floor space versus the long-bed LMB
- 978 mm (39 in) turning length handles most production chucking work and moderate shafts
- Live tooling at 4,000 RPM for cross-features without a second setup
- FANUC 0i-TF Plus control is proven and universally supported
Limitations
- 2,000 RPM max speed is restrictive for smaller-diameter work
- 30 kW (40 hp) is less raw power than the 12-inch MA's 50 hp, though torque is higher
- 10,100 kg requires solid foundation engineering
- 978 mm turning length won't accommodate long shaft work
Best For
Frequently Asked Questions
01
The gearing is different. The MA's 50 hp drives through gearing optimized for 3,000 RPM with 1,024 N-m. The MB's 40 hp drives through gearing optimized for 2,000 RPM with 1,611 N-m. The MB puts more force at the cutting edge at typical operating speeds for 15-inch chuck work.
02
If your parts fit within 978 mm of turning length, the MB is more compact and less expensive. The LMB adds over a meter of extra turning length for long-shaft work. Spindle performance is identical between the two.
03
With 1,611 N-m of torque, the MB handles carbon steel, alloy steel (4140, 4340), stainless (304, 316, 17-4PH), cast iron, and most nickel alloys at productive feeds and speeds. It's designed for the tough materials that larger parts are typically made from.
04
Yes. Robot loading, gantry loaders, and bar feeders are all available options. For large chucking work, robot or gantry loading is the most common automation approach. The FANUC control supports standard automation interfaces.
Videos
PRIMEMACHINERY
Duroc Machine Tool Group
Amaron s.r.o.
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