DN Solutions PUMA 3100 LY
Key Specifications
Spindle Power
Max Turn Length
chuck size
max turning diameter
x axis travel
y axis travel
Overview
The DN Solutions PUMA 3100 LY is the long-bed Y-axis turning center in the 3100 platform — a 12-inch chuck machine built for turning long parts with off-center milling capability. The L gives you 1,350 mm (53.1 in) of Z-axis travel and 1,285 mm (50.6 in) of max turning length, while the Y provides 130 mm (5.1 in) of off-center travel for milling features that would otherwise need a VMC second op.
The main spindle delivers 26 kW (35 hp) with 1,123 Nm (828 ft-lb) of torque at up to 2,800 RPM. That is the same proven high-torque spindle from the GT 3100 LM, now with Y-axis capability added. Max turning diameter is 420 mm (16.5 in), and the 12-inch chuck provides serious clamping force for heavy workpieces.
The Y-axis provides 130 mm (5.1 in) of off-center travel — more generous than the 2600 platform's 105 mm. Combined with C-axis positioning and 5,000 RPM live tools on the 12-station turret, you can mill flats, cut keyways, drill off-center holes, and create features across the full length of the part. X-axis travel is 293 mm (11.5 in) with 30 m/min rapids on both axes.
At 8,000 kg (17,637 lb), the 3100 LY carries substantial mass for long-reach stability. The footprint runs 4,530 mm (178 in) long by 2,067 mm (81 in) wide. That mass eliminates chatter when machining long, slender parts that tend to vibrate on lighter platforms.
The 3100 LY does not include a sub-spindle — that is the LSY variant. For shops turning long parts from one end with Y-axis milling features, the LY provides the bed length and off-center capability you need without the cost and complexity of a sub-spindle.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 12 inch |
| Max Turning Diameter | 420 mm |
| Max Turning Length | 1285 mm |
| X Axis Travel | 293 mm (11.5 in) |
| Y Axis Travel | 130 mm (5.1 in) |
| Z Axis Travel | 1,350 mm (53.1 in) |
| X Axis Rapid Traverse | 30 m/min (1,181 ipm) |
| Z Axis Rapid Traverse | 30 m/min (1,181 ipm) |
| Max Spindle Speed | Max. Spindle Power |
| Spindle Motor Power | 26 kW (35 hp) |
| Spindle Torque | 1,123 Nm (828 ft-lb) |
| Turret Stations | 12-station turret |
| Rotary Tool Speed | 5,000 RPM |
| Machine Length | 4,530 mm (178 in) |
| Machine Width | 2,067 mm (81 in) |
| Machine Height | 2,315 mm (91 in) |
| Machine Weight | 8,000 kg (17,637 lb) |
| CNC Control | FANUC 0i-TF Plus |
| 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 |
| 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 RPM |
| 4500 R Min | 7.5 kW |
| 4500 Rpm | 10 hp |
| 4000 R Min | 30 N·m |
| 4000 Rpm | 22 ft-lb |
Specifications sourced from dn-solutions.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 1,350 mm Z-axis travel handles long shafts and cylindrical parts up to 1,285 mm turning length
- 130 mm Y-axis travel is the most generous in the lineup for off-center milling on long parts
- 1,123 Nm torque crushes heavy roughing in steel, stainless, and alloys
- 420 mm max turning diameter handles stockier parts than the 2600 platform
- 8,000 kg mass provides exceptional vibration damping for long workpiece machining
- Lower cost than the LSY by omitting the sub-spindle
Limitations
- No sub-spindle — backworking on long parts requires manual rechucking
- 2,800 RPM spindle speed limits surface footage on small-diameter work
- 4,530 mm footprint and 8,000 kg weight demand substantial floor space and foundation
- 26 kW spindle power is less than the SY variant's 30 kW
Best For
Frequently Asked Questions
01
The 3100 LY has a larger turning diameter (420 vs 376 mm), more X-axis travel (293 vs 260 mm), and 25% more Y-axis travel (130 vs 105 mm). Both share 1,123 Nm of torque and 12-inch chucks. The 3100 is heavier (8,000 vs 7,950 kg) and has slightly more turning length (1,285 vs 1,245 mm). The 3100 is the step up for shops needing more clearance and Y-axis range.
02
The LSY adds a sub-spindle for backworking operations. Both share the same main spindle, Y-axis, and turret specs. If your long parts need features machined on both ends, get the LSY. If they are one-sided, the LY saves you money.
03
For slender parts with high length-to-diameter ratios (above about 5:1), a steady rest prevents deflection and chatter. It is available as an option. The 8,000 kg machine mass helps, but a steady rest is recommended for the longest, thinnest parts.
04
New machines run $160,000-$215,000 depending on options. The long bed and Y-axis add a premium over the base GT 3100 M, but omitting the sub-spindle keeps it more accessible than the LSY.
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