DN Solutions CNC Lathes / Turning Centers

DN Solutions PUMA 4100 LB

Est. $190,000 - $270,000 Specs verified 2026-10-02 · dn-solutions.com Updated 2026-10-02

Image: dn-solutions.com, DN Solutions

Key Specifications

X Travel

352 mm (14 in)

Z Travel

2,155 mm (85 in)

Max Spindle

2,000 rpm

Spindle Power

35 kW (47 hp)

Max Turn Length

2,092 mm (82 in)

chuck size

15 in

How much does the DN Solutions PUMA 4100 LB cost?

Estimated price range

Est.$190,000 - $270,000

Our best estimate for a cnc lathes / turning center in this class — not a quote from DN Solutions. Configuration moves it a long way.

Overview

Long shafts and rolls that call for more torque than a 12 in lathe delivers are the brief for the DN Solutions PUMA 4100 LB. It is a two-axis machine with a 15 in chuck, 2,092 mm (82 in) of maximum turning length, 550 mm (22 in) of maximum turning diameter and a spindle rated 35 kW (47 hp) and 2,379 N·m (1,755 ft-lb) at up to 2,000 rpm.

Two neighbours define it. The PUMA 4100 B has the identical chuck and spindle figures on a short bed: 1,105 mm (44 in) of Z travel, 1,042 mm (41 in) of turning length and 9,950 kg (21,936 lb). The PUMA 4100 LB doubles the working length, with 2,155 mm (85 in) of Z, and weighs 11,400 kg (25,133 lb). The other neighbour is the PUMA 4100 LA, which shares the long bed but carries a 12 in chuck at 3,000 rpm and 1,584 N·m (1,168 ft-lb). Since both long-bed machines list 35 kW (47 hp), the choice between them is a trade of top speed for torque, and the LB has about 50% more torque than the PUMA 4100 LA.

That torque is useful on a long part mainly near the chuck and on large-diameter sections, where a deep cut does not deflect the work. The 15 in chuck also grips a heavy forging or bar more securely than a 12 in one. In exchange the turret drops to 10 stations, against 12 on the PUMA 4100 LA, so a shaft with many features needs its tool list planned.

X travel is 352 mm (14 in). Rapids are 16 m/min (630 ipm) on X and 20 m/min (787 ipm) on Z. The table has no live-tool speed and no Y travel. DN lists 5,774 × 2,275 × 2,272 mm (227 × 90 × 89 in) as length, width and height.

Full Specifications

Parameter	Value
Chuck Size	15 in
Max Turning Diameter	550 mm (22 in)
Max Turning Length	2,092 mm (82 in)
Rapid Traverse X	16 m/min (630 ipm)
Rapid Traverse Z	20 m/min (787 ipm)
X-Axis Travel	352 mm (14 in)
Z-Axis Travel	2,155 mm (85 in)
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
Floor Space Required	5,774 × 2,275 × 2,272 mm (227 × 90 × 89 in)
Machine Weight	11,400 kg (25,133 lb)

Specifications sourced from dn-solutions.com — verified 2026-10-02

Strengths & Limitations

Strengths

2,379 N·m (1,755 ft-lb) of spindle torque, about 50% more than the 1,584 N·m (1,168 ft-lb) of the PUMA 4100 LA
2,092 mm (82 in) of turning length, roughly double the 1,042 mm (41 in) of the PUMA 4100 B
15 in chuck for holding heavy shafts and forgings
35 kW (47 hp) spindle rating at up to 2,000 rpm
11,400 kg (25,133 lb) of machine weight under a long workpiece

Limitations

Only 10 turret stations; the PUMA 4100 LA lists 12
Top speed is 2,000 rpm, against 3,000 rpm on the PUMA 4100 LA
Turning-only: the table has no live-tool speed and no Y travel
Tailstock and steady rest data are not listed for a machine that turns 2,092 mm (82 in)

Best For

Heavy shafts and rolls up to 2,092 mm (82 in) long Roughing forgings and bar up to 550 mm (22 in) in diameter at 2,379 N·m (1,755 ft-lb) Long parts whose large-diameter sections need deep cuts Shops that already mill shaft features on a separate machine

Frequently Asked Questions

01 What separates the PUMA 4100 LB from the PUMA 4100 B?

Bed length. Both have a 15 in chuck, 2,000 rpm, 35 kW (47 hp), 2,379 N·m (1,755 ft-lb) and a 10-station turret. The PUMA 4100 B has 1,105 mm (44 in) of Z travel and turns 1,042 mm (41 in); the PUMA 4100 LB has 2,155 mm (85 in) of Z travel and turns 2,092 mm (82 in). Weight goes from 9,950 kg (21,936 lb) for the PUMA 4100 B to 11,400 kg (25,133 lb).

02 Should I pick the PUMA 4100 LB or the PUMA 4100 LA for shaft work?

Pick by diameter and cut. The PUMA 4100 LB gives 2,379 N·m (1,755 ft-lb) and a 15 in chuck for heavy cuts on large sections. The PUMA 4100 LA gives 3,000 rpm, 12 turret stations and 2,124 mm (84 in) of turning length, with 1,584 N·m (1,168 ft-lb). Both list 35 kW (47 hp) and the same 550 mm (22 in) turning diameter.

03 Is there a larger chuck on this bed?

Yes. The PUMA 4100 LC has a 21 in chuck, 1,500 rpm, 37 kW (50 hp) and 3,280 N·m (2,419 ft-lb), and turns 2,052 mm (81 in). The PUMA 4100 LB stays the faster of the two at 2,000 rpm and turns slightly longer at 2,092 mm (82 in).

04 Does the PUMA 4100 LB have live tools?

No. Its table lists a 10-station turret with X and Z travel and gives no live-tool speed, so keyways, cross holes and drilled flanges on a shaft are done on another machine. For comparison, the PUMA 5100 LYA lists 4,000 rpm live tools with a 15 in chuck, 2,432 N·m (1,794 ft-lb) and 2,050 mm (81 in) of turning length, at 13,000 kg (28,660 lb).

05 What floor space and weight should be planned for?

The listed size is 5,774 × 2,275 × 2,272 mm (227 × 90 × 89 in) as length, width and height, and the machine weighs 11,400 kg (25,133 lb). Long, heavy stock is loaded by crane, so the bay needs hook coverage over the chuck and bed as well as the floor area.