DN Solutions PUMA 3100M

$250,000 - $420,000 Updated 2026-03-16

Key Specifications

Max Spindle

1,500 RPM

Spindle Power

37 kW (50 hp)

Max Turn Length

755 mm

max swing over bed

800 mm (31.5 in)

max turning diameter

481 mm

max bar capacity

105 mm (4.13 in)

Overview

The DN Solutions PUMA 3100M is a large-capacity slant-bed CNC turning center with integrated milling capability, designed for heavy-duty turning of substantial workpieces in the energy, heavy equipment, and general manufacturing sectors. The PUMA 3100 designation refers to the machine's large swing capacity — accommodating work up to 800 mm (31.5 in) in diameter — while the M suffix indicates a driven-tool turret with live milling and drilling capability. This combination makes the PUMA 3100M a versatile single-setup solution for large parts that need both turning and milling operations.

The main spindle delivers a peak torque of 3,039 Nm and runs at up to 1,500 RPM with 37 kW (50 hp) of power, positioning the PUMA 3100M squarely in the heavy turning category. This torque output enables aggressive material removal on large-diameter forgings, castings, and bar stock in steel, stainless steel, and nickel alloys. The 12-inch (305 mm) chuck standard accommodates flanges, sleeves, and disk-type parts, with 15-inch and 18-inch chuck options for the largest work. Bar passage of 105 mm (4.13 in) handles larger bar stock than most mid-size lathes.

The milling turret carries 12 stations with live tooling, allowing cross-drilling, keyway milling, tapping, and facing operations at programmed C-axis positions without a second machine setup. An optional Y-axis (+/-65 mm) enables eccentric milling, off-center drilling, and more complex prismatic features on the turned part. Maximum Z-axis travel of 1,651 mm (65 in) provides generous shaft and sleeve turning capacity.

The PUMA 3100M is controlled by a Fanuc 32i-B as standard, with FANUC conversational programming and DN Solutions' proprietary DNSmart interface for guided setup and diagnostics. Competing directly against the Mazak Quick Turn Nexus 550-II M, DMG Mori NLX 4000, and Okuma LB4000 EX II M, the PUMA 3100M delivers competitive specifications at DN Solutions' characteristic value pricing. New machines are priced between $250,000 and $420,000 depending on configuration, chuck size, and option content.

Full Specifications

Parameter	Value
Max Swing Over Bed	800 mm (31.5 in)
Max Turning Diameter	481 mm
Max Turning Length	755 mm
Max Bar Capacity	105 mm (4.13 in)
Max Spindle Speed	1,500 RPM
Spindle Motor Power	37 kW (50 hp)
Spindle Torque	3,039 Nm (2,241 ft-lb) peak
Spindle Nose	A2-11
Turret Stations	12 stations with live tooling
Live Tool Speed	4,000 RPM
Live Tool Power	5.5 kW (7.4 hp)
Y Axis Travel	+/- 65 mm (optional)
Rapid Traverse Z	20 m/min (787 ipm)
CNC Control	Fanuc 32i-B
Machine Weight	16,000 kg (35,274 lb) approx.
Chuck Size	12 inch
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 GT3100L

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

Strengths & Limitations

Strengths

3,039 Nm peak spindle torque and 37 kW power handle aggressive roughing of large-diameter forgings and castings that would stall lighter-duty lathes
105 mm bar passage accommodates larger bar stock than most competitors in the class, reducing the need for specialized bar-fed setups
1,651 mm Z-travel covers long sleeves, cylinders, and shafts that mid-size lathes cannot handle in a single setup
DN Solutions' competitive pricing delivers large-format turning capability at significantly lower cost than comparable Japanese or German alternatives

Limitations

1,500 RPM maximum spindle speed is appropriate for large-diameter work but limits surface speed on smaller-diameter finishing operations
Optional Y-axis is an additional cost — base PUMA 3100M without Y-axis cannot perform eccentric milling, limiting it to on-centerline live-tool operations
At 16,000 kg, installation requires a substantial concrete foundation and careful site planning — the machine is not easily relocated once set

Best For

Oil and gas equipment manufacturers producing large valve bodies, flanges, pipe fittings, and wellhead components requiring both heavy turning and bolt-hole drilling Power generation shops machining turbine components, generator housings, and pump casings in large-diameter stainless steel and alloy steel Heavy equipment OEMs producing large hub assemblies, ring gears, and cylinder sleeves where swing capacity and torque are primary requirements General job shops handling large one-off or small-batch parts that need a versatile large-capacity lathe with milling capability

Frequently Asked Questions

01 What is the maximum workpiece weight the PUMA 3100M can support?

The PUMA 3100M supports workpiece weights up to approximately 1,500 kg (3,307 lb) between centers with the tailstock engaged. For chuck-only work, the rated chuck workpiece weight is typically 300-400 kg depending on chuck configuration. Shops regularly produce large flanges, valve bodies, and pump housings up to these limits.

02 Does the PUMA 3100M include a tailstock?

Yes, a programmable tailstock is standard on the PUMA 3100M and is hydraulically controlled for quill in/out motion. The tailstock is essential for shaft work in the longer turning lengths, providing center support that prevents deflection during heavy cuts on long, slender parts. MT5 taper centers are standard.

03 How does the PUMA 3100M compare to the PUMA 2600?

The PUMA 2600 (as in the PUMA 2600SY reference machine) is a mid-size turning center with approximately 600 mm swing capacity, oriented toward bar-fed production with sub-spindle and Y-axis. The PUMA 3100M is significantly larger with 800 mm swing, 37 kW spindle, and 105 mm bar passage, targeting heavy turning rather than bar-fed production. The 3100M is primarily a single-spindle machine for large chuck and shaft work.

04 Is DNSmart compatible with third-party tool management systems?

DN Solutions' DNSmart interface provides tool life data, maintenance scheduling, and machine monitoring that can export data via standard OPC-UA and MTConnect protocols for integration with factory MES and tool management systems. DN Solutions has invested significantly in connectivity standards compatibility to meet Industry 4.0 integration requirements.

05 What chuck sizes are available for the PUMA 3100M?

The PUMA 3100M supports 12-inch (305 mm) chuck as standard, with 15-inch (380 mm) and 18-inch (457 mm) options for larger work. The A2-11 spindle nose accommodates these chuck sizes directly. Four-jaw chucks are available for non-circular workpieces, and face drivers or centers are used for shaft work between tailstock and spindle.