DN Solutions PUMA GT 3100 L
Key Specifications
X Travel
Z Travel
Max Turn Length
chuck size
max turning diameter
x axis rapid traverse
Overview
The DN Solutions PUMA GT 3100 L extends the GT 3100 platform with a long bed, pushing Z-axis travel to 1,350 mm and max turning length to 1,275 mm while keeping the same powerful 35 kW spindle and 12-inch chuck. It's the machine you reach for when heavy turning power and extended length both matter.
The spindle delivers 35 kW (47 hp) at 2,800 RPM with 1,613 Nm (1,190 ft-lbs) of torque — identical to the standard GT 3100. Max turning diameter holds at 481 mm (18.9 in). The Z-axis stretches to 1,350 mm (53.1 in), a 520 mm increase over the standard bed, enabling turning lengths up to 1,275 mm (50.2 in). The 10-station turret and 24/30 m/min rapid traverse rates carry over unchanged.
At 6,900 kg (15,212 lb) and 4,633 mm long, the L variant adds 1,400 kg and about 565 mm in length over the standard GT 3100. The extra mass helps with vibration damping on long parts, which is a real benefit when you're taking heavy cuts at the limits of the work envelope. Machine width grows to 2,394 mm and height to 2,110 mm.
The GT 3100 L fills the gap between mid-range long-bed lathes (like the GT 2600 XL series) and heavy-duty monsters (like the PUMA 800 XL II). It combines the GT 3100's exceptional torque with enough reach for most long shaft applications under 1.3 meters. For shops producing drive shafts, pump shafts, hydraulic cylinders, and similar parts that need both heavy material removal and extended length, this is a well-balanced platform. Specs sourced from DN Solutions published data.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 12 inch |
| Max Turning Diameter | 481 mm |
| Max Turning Length | 1275 mm |
| X-Axis Travel | 260 mm (10.2 in) |
| Z-Axis Travel | 1,350 mm (53.1 in) |
| X Axis Rapid Traverse | 24 m/min (945 ipm) |
| Z Axis Rapid Traverse | 30 m/min (1,181 ipm) |
| Main Spindle Speed | 2,800 RPM |
| Main Spindle Power | 35 kW (47 hp) / 1,613 Nm (1,190 ft-lbs) |
| Tool Stations | 10 |
| Machine Length | 4,633 mm (182.4 in) |
| Machine Width | 2,394 mm (94.3 in) |
| Machine Height | 2,110 mm (83.1 in) |
| Machine Weight | 6,900 kg (15,212 lb) |
| 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
- 35 kW spindle with 1,613 Nm torque combined with 1,275 mm turning length provides both power and reach in one machine
- 6,900 kg machine mass delivers outstanding vibration damping for stable heavy cuts on long workpieces
- 12-inch chuck securely grips large-diameter parts that would slip or deflect in a 10-inch chuck
- GT series premium construction bridges the gap between mid-range long-bed lathes and heavy-duty engine lathes
- Long-bed configuration handles shaft work up to 1.275 meters without stepping up to the much larger PUMA 800 series
Limitations
- 2,800 RPM spindle speed is moderate — finishing small-diameter features may not reach optimal surface speeds
- 10-station turret limits tool positions for complex multi-operation parts
- 4,633 mm machine length and 6,900 kg weight require adequate floor space and crane access
- Two-axis turning only — no live tooling or C-axis for milling operations
- Price premium of $15-20K over the standard GT 3100 adds up if most of your work fits the shorter bed
Best For
Frequently Asked Questions
01
The long-bed L variant typically adds $15,000-$20,000 over the standard GT 3100, bringing the price range to roughly $155,000-$220,000. The premium covers the longer bed casting, extended chip conveyor, and additional mass. It's a modest premium for a significant increase in work envelope.
02
For most long shaft work, yes. A tailstock provides critical support against deflection during turning. DN Solutions offers both standard and programmable tailstocks as options. For very slender parts, combining a tailstock with a steady rest gives the best results.
03
The PUMA 800 XL II is in a completely different class: 32-inch chuck, 5,050 mm turning length, 55 kW, 8,076 Nm torque, 26,000 kg. The GT 3100 L is a production turning center for parts up to 1,275 mm; the PUMA 800 is a heavy-duty machine for parts up to 5 meters. The GT 3100 L is much more affordable and practical for typical shop work.
04
Yes, and many shops do. The GT 3100 L offers 63% more torque (1,613 Nm vs 990 Nm) and 35% more power (35 kW vs 26 kW) over the GT 2600 XLB, though the turning length is shorter (1,275 mm vs 1,573 mm). If your bottleneck is spindle power rather than reach, the GT 3100 L is the right step up.
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