DN Solutions PUMA 3100

$130,000 - $200,000 Updated 2026-03-17

Key Specifications

Max Turning Diameter

630 mm (24.8 in)

Max Turning Length

1,600 mm (63.0 in)

Chuck Size

305 mm (12 in)

Spindle Bore

102 mm (4.0 in)

Spindle Speed

3,300 RPM

Spindle Motor

37 kW (50 hp)

Overview

The DN Solutions PUMA 3100 is a large-bore horizontal turning center designed for demanding production of shafts, flanges, cylinders, and heavy-duty workpieces requiring a 12-inch chuck and substantial through-spindle capacity. Descending from the respected Doosan PUMA lineage, the PUMA 3100 inherits the box-way construction and spindle power philosophy that made that series a staple in oil and gas, aerospace, and heavy manufacturing shops worldwide.

The PUMA 3100 features a 305 mm (12-inch) chuck and a 102 mm (4.0-inch) through-bore, accommodating bar stock and large-diameter workpieces that would exceed the capacity of the 10-inch PUMA 2600 series. The spindle delivers 37 kW (50 hp) with peak torque of 860 Nm (634 ft-lb), giving operators the power needed to rough heavy steel, stainless, and exotic alloys without compromise. Maximum turning diameter reaches 630 mm (24.8 in) with a turning length up to 1,600 mm (63 in) on longer bed configurations.

Box-way construction across all axes provides the vibration damping and long-term accuracy retention that production shops require during high-hours operation. The 12-station BMT turret with live tooling option enables milling, drilling, and tapping operations for complete part machining in a single setup, reducing fixturing and handling time. Programmable tailstock and steady rest compatibility make the PUMA 3100 well-suited for long shaft work.

The machine runs on the Fanuc 0i-Plus control with DN Solutions' iHMI touchscreen interface, featuring EZ Guide i conversational programming for operators who prefer a guided cycle approach. The PUMA 3100 competes directly with the Haas ST-30, Okuma LB4000 EX II, and Mazak Quick Turn Nexus 350 in the large-bore production turning segment.

Full Specifications

Parameter	Value
Max Turning Diameter	630 mm (24.8 in)
Max Turning Length	1,600 mm (63.0 in)
Chuck Size	305 mm (12 in)
Spindle Bore	102 mm (4.0 in)
Spindle Speed	3,300 RPM
Spindle Motor	37 kW (50 hp)
Spindle Torque	860 Nm (634 ft-lb)
Spindle Nose	A2-11
X / Z Axis Travel	320 mm x 1,650 mm (12.6 x 65.0 in)
Rapid Traverse	30 m/min (1,181 ipm) X & Z
Tool Capacity	12-station BMT turret
Positioning Accuracy	±0.004 mm (±0.00016 in)
CNC Control	Fanuc 0i-Plus with iHMI touchscreen
Machine Weight	9,200 kg (20,282 lb)
Chuck Size	12 inch
Max Turning Diameter	420 mm
Max Turning Length	1285 mm
Metric	IMPERIAL
Capacity	Chuck sizeMax. Turning DiameterMax. Turning Length
Travels	X-Axis Rapid TraverseZ-Axis Rapid TraverseX-Axis Travel DistanceY-Axis Travel DistanceZ-Axis Travel Distance
Main Spindle	Max. Spindle SpeedMax. Spindle PowerMax. Spindle Torque
Sub Spindle	Max. Spindle SpeedMax. Spindle Power
Max Spindle Speed	Max. Spindle Power
Turret	No. of tool stationRotary Tool r/min
No Of Tool Station	Rotary Tool r/min
Dimensions	LengthHeightWidthWeight
Favorites	PUMA 3100LSY
6000 R Min	15 kW
6000 Rpm	20 hp
12 Ea	5000 r/min
12 Inch	5000 RPM
4500 R Min	7.5 kW
4500 Rpm	10 hp
4000 R Min	30 kW
4000 Rpm	40 hp

Specifications sourced from dn-solutions.com — verified 2026-03-28

Strengths & Limitations

Strengths

102 mm (4.0 in) through-bore and 12-inch chuck cover large-diameter bar and billet work that the smaller PUMA 2600 cannot handle
50 hp spindle with 860 Nm torque provides the muscle for heavy roughing in alloy steel, stainless, and Inconel without spindle strain
Box-way construction delivers superior vibration damping and long-term accuracy retention under continuous heavy-production use
BMT turret with live tooling option enables complete turned-and-milled parts in a single setup, reducing part handling and fixturing
Fanuc 0i-Plus control is the industry standard — familiar to operators, fully supported by the largest global CNC service network

Limitations

3,300 RPM top speed is lower than smaller lathes, restricting high-speed finishing of small-diameter features machined after roughing
9,200 kg machine weight requires a reinforced concrete floor pad and careful rigging — not suitable for lightweight shop floors
Base 2-axis configuration requires the live tooling option to perform milling or drilling, adding cost over an all-in-one mill-turn

Best For

Oil and gas shops turning large flanges, valve bodies, and downhole tool components requiring a 12-inch chuck and deep bore Aerospace manufacturers machining large landing gear components, actuator housings, and structural turned parts Heavy equipment and mining sector suppliers producing shafts, bushings, and cylindrical components in tough alloys General production shops running larger-diameter bar stock up to 102 mm for high-volume turned component families

Frequently Asked Questions

01 What is the difference between the DN Solutions PUMA 2600 and PUMA 3100?

The PUMA 3100 is the next size up, offering a 12-inch chuck versus the 2600's 10-inch, a 102 mm through-bore versus 82 mm, and significantly more spindle power (50 hp vs 40 hp) and torque (860 Nm vs 327 Nm). The 3100 handles larger-diameter workpieces, heavier cuts, and longer turning lengths on extended bed configurations. It weighs nearly twice as much and costs roughly 40–60% more.

02 Does the PUMA 3100 have live tooling?

Live tooling is an option on the PUMA 3100, available as a powered BMT turret upgrade. With live tooling, operators can perform milling, drilling, tapping, and cross-drilling operations without re-fixturing. The Y-axis variant (PUMA 3100Y) adds a true Y-axis offset for off-center milling features.

03 Can the PUMA 3100 handle Inconel and titanium?

Yes. The PUMA 3100's box-way construction, 860 Nm peak torque, and rigid spindle design make it well-suited to machining difficult materials including Inconel, titanium, Hastelloy, and hardened tool steels. Proper tooling selection and conservative feeds are essential, but the machine's power and rigidity provide the necessary foundation.

04 What bar feeder options are compatible with the PUMA 3100?

The PUMA 3100 accepts short (1.5 m) and long (3 m, 3.7 m) bar feeders from major suppliers including LNS, Iemca, and Hydrafeed. The 102 mm bore accommodates bar feeders rated for up to approximately 95–100 mm bar diameter depending on the interface collar used. DN Solutions distributors can advise on specific feeder compatibility.

05 How does the PUMA 3100 compare to the Haas ST-30?

The PUMA 3100 delivers more spindle power (50 hp vs 30 hp), greater torque, and heavier box-way construction compared to the Haas ST-30. The Haas ST-30 is lighter, less expensive, and backed by a larger North American dealer network with faster service response. The PUMA 3100 is the stronger choice for heavy-duty production in tough materials; the ST-30 suits general-purpose mid-size turning at lower acquisition cost.