DN Solutions PUMA 4100 B

$160,000 - $230,000 Updated 2026-03-19

Key Specifications

Max Spindle

2,000 RPM

Spindle Power

35 kW (47 hp)

Max Turn Length

1042 mm

chuck size

15 inch

max turning diameter

550 mm

x axis travel

352 mm (13.9 in)

Overview

The DN Solutions PUMA 4100 B is a 15-inch chuck, 2-axis horizontal turning center that fills the gap between the mid-size PUMA 2600 and the heavy-duty PUMA 5100. It's built on box ways for rigidity and handles workpieces up to 550 mm (22 in) diameter and 1,042 mm (41 in) long — the kind of parts that oil and gas shops, heavy equipment manufacturers, and large job shops turn every day.

The spindle delivers 35 kW (47 hp) with 2,379 N-m (1,755 ft-lb) of torque at up to 2,000 RPM. That's serious grunt. The 15-inch chuck grips flanges, housings, and large bar stock securely, and the high torque means you can take aggressive roughing passes in 4140, stainless, and even some tougher alloys without backing off the feedrate.

Axis travels are 352 mm on X and 1,105 mm on Z, with rapids at 16 m/min on X and 20 m/min on Z. The 10-station turret accepts heavy-duty tooling. The whole package weighs 9,950 kg (21,936 lb) on a 4,654 mm x 2,056 mm footprint. That weight is working for you — it damps vibration on heavy cuts and holds accuracy over long roughing passes.

The FANUC control handles standard G-code programming. The PUMA 4100 platform has been around for years (originally as the Doosan PUMA 400/480 series), so there's a deep knowledge base, plenty of used machines on the market, and well-understood maintenance requirements.

For shops that find the 10-inch PUMA 2600 too small and the PUMA 5100 more machine than they need, the 4100 B is the Goldilocks choice. It handles most large turning work that walks through a job shop door without the footprint, weight, or cost of stepping into the true heavy-duty class.

Full Specifications

Parameter	Value
Chuck Size	15 inch
Max Turning Diameter	550 mm
Max Turning Length	1042 mm
X Axis Travel	352 mm (13.9 in)
Z Axis Travel	1,105 mm (43.5 in)
Rapid Traverse X	16 m/min (630 in/min)
Rapid Traverse Z	20 m/min (787 in/min)
Max Spindle Speed	2,000 RPM
Spindle Motor Power	35 kW (47 hp)
Spindle Torque	2,379 N-m (1,755 ft-lb)
Turret Stations	10
Machine Length	4,654 mm (183 in)
Machine Height	2,194 mm (86 in)
Machine Width	2,056 mm (81 in)
Machine Weight	9,950 kg (21,936 lb)
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

2,379 N-m (1,755 ft-lb) of spindle torque handles aggressive roughing on large-diameter steel and alloy parts
15-inch chuck grips flanges, housings, and large-diameter workpieces that 10-inch machines can't hold
Box-way construction provides vibration damping and rigidity for heavy interrupted cuts in tough materials
1,042 mm max turning length accommodates medium-length shaft and cylindrical work in a single setup
47 hp spindle motor sustains heavy material removal rates across long roughing passes without thermal issues
Proven platform with decades of production history and a strong used market for value retention

Limitations

2,000 RPM max spindle speed limits surface speed on smaller-diameter features — finishing passes may be RPM-limited
16/20 m/min rapids are notably slower than compact LYNX machines, adding non-cutting time
9,950 kg machine weight requires proper floor preparation and crane access for installation
10-station turret is adequate but not generous for complex multi-operation programs
No live tooling or Y-axis on the base 4100 B — milled features need a second operation

Best For

Oil and gas shops turning flanges, valve bodies, and large bore components up to 22 inches diameter Heavy equipment manufacturers making shafts, rollers, and cylindrical parts in production quantities Job shops needing a large-capacity lathe that handles most walk-in work without stepping up to true heavy-duty machines Shops turning stainless steel, 4140, and alloy components where torque and rigidity matter more than spindle speed Facilities standardized on FANUC control and DN Solutions platforms across their turning department

Frequently Asked Questions

01 What's the difference between the PUMA 4100 B and 4100 C?

The B has a 15-inch chuck with 2,000 RPM and 2,379 N-m torque. The C steps up to a 21-inch chuck with 1,500 RPM and 3,280 N-m torque at 50 hp. Same bed, same travels. The C is for bigger, heavier parts that need the larger jaws, while the B's higher speed is better for parts where surface speed matters.

02 How does the PUMA 4100 B compare to the PUMA 2600?

The 4100 B is a significantly larger machine: 15-inch vs 10-inch chuck, 47 vs 40 hp, 2,379 vs 327 N-m torque, and nearly double the weight. It handles parts up to 22 inches diameter versus the 2600's 19 inches. If your parts regularly exceed 15-inch diameter or weigh more than 200 pounds, the 4100 B is the right step up.

03 What does a PUMA 4100 B cost?

New machines run $160,000-$230,000 depending on options. Used PUMA 4100/400 series machines from 2015-2022 sell in the $60,000-$120,000 range depending on hours and condition. The deep used market makes this a practical choice for shops looking for value.

04 Can I run bar stock through the PUMA 4100 B?

The 15-inch chuck machine has a large spindle bore, but at this machine class, most work is chucked rather than bar-fed. If you need bar feeding, verify the specific bore diameter with your dealer. The LA variant with a 12-inch chuck has a 3,000 RPM spindle that's better suited to bar work.