DN Solutions PUMA 5100 LYB

$290,000 - $375,000 Updated 2026-03-19

Key Specifications

Spindle Power

45 kW (60 hp)

Max Turn Length

2020 mm

chuck size

21 inch

max turning diameter

550 mm

x axis travel

362 mm (14 in)

y axis travel

160 mm (6.3 in)

Overview

The DN Solutions PUMA 5100 LYB is the long-bed, 21-inch chuck Y-axis variant in the PUMA 5100 series. It takes the most powerful spindle package in the 5100 lineup — 45 kW (60 hp) with 2,958 Nm (2,182 ft-lb) of torque — and pairs it with a programmable Y-axis for off-center milling on the heaviest, most demanding turned parts.

The 21-inch (533 mm) chuck delivers maximum clamping force for large-diameter forgings, castings, and weldments up to 650 mm (26 in) in diameter and 2,002 mm (79 in) in length. The spindle tops at 1,500 RPM — lower than the 15-inch LYA's 2,000 RPM, but the additional chuck size and torque are mandatory when you're clamping 500+ mm diameter raw stock where secure grip is both a quality and safety requirement.

The Y-axis provides +/-80 mm (160 mm total, 6.3 in) of off-center travel. With 4,000 RPM live tooling on the 12-station turret and full C-axis control, the LYB can mill flats, drill off-center bolt patterns, cut keyways, and tap holes on the biggest parts in the 5100 class. Avoiding a secondary VMC operation on a part that weighs 800 kg isn't a convenience — it's a workflow transformation.

Z-axis travel is 2,155 mm (85 in) with 362 mm (14 in) on X. Rapids run 16 m/min on X, 20 m/min on Z, and 8 m/min on Y. Box-way construction throughout absorbs the cutting forces generated during heavy turning and milling operations. At 12,600 kg (27,778 lb), this is a substantial machine.

The FANUC 0i-TF Plus control handles the multi-axis coordination. The LYB is the go-to choice when you need the maximum clamping force of a 21-inch chuck with long-bed turning length and Y-axis mill-turn capability — a combination that eliminates the most expensive and time-consuming secondary setups in heavy industry turning. Specs sourced from DN Solutions published data.

Full Specifications

Parameter	Value
Chuck Size	21 inch
Max Turning Diameter	550 mm
Max Turning Length	2020 mm
X Axis Travel	362 mm (14 in)
Y Axis Travel	160 mm (6.3 in)
Z Axis Travel	2,155 mm (85 in)
X Axis Rapid Traverse	16 m/min (630 ipm)
Y Axis Rapid Traverse	8 m/min (315 ipm)
Z Axis Rapid Traverse	20 m/min (787 ipm)
Max Spindle Speed	1,500 RPM
Spindle Motor Power	45 kW (60 hp)
Spindle Torque	2,958 Nm (2,182 ft-lb)
Turret Stations	12-station turret
Rotary Tool Speed	4,000 RPM
Machine Weight	12,600 kg (27,778 lb)
Machine Length	5,879 mm (231 in)
Machine Height	2,272 mm (89 in)
Machine Width	2,275 mm (90 in)
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
Turret	No. of tool stationRotary Tool r/min
No Of Tool Station	Rotary Tool r/min
Dimensions	LengthHeightWidthWeight
Favorites	PUMA 5100XLYB
12 Ea	4000 RPM

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

Strengths & Limitations

Strengths

21-inch chuck provides maximum clamping force for the largest workpieces in the 5100 class
2,958 Nm torque with 45 kW spindle handles the most aggressive roughing in tough materials
Y-axis with 160 mm travel enables off-center milling on heavy parts that are impractical to re-fixture
2,002 mm turning length covers long-shaft work with Y-axis capability
12,600 kg mass delivers excellent vibration damping during combined turning and milling operations
Box-way construction provides uncompromising rigidity for this class of heavy mill-turn work

Limitations

1,500 RPM spindle speed is limiting for small-diameter features and aluminum work
21-inch chuck tooling is expensive — jaw sets and fixtures are a significant investment
12,600 kg requires substantial foundation preparation and heavy rigging
Higher cost than the 15-inch LYA — only justified when parts demand 21-inch clamping

Best For

Heavy industry shops turning large castings and forgings with off-center milled features Power generation OEMs machining turbine components, generator housings, and large bearing caps with bolt patterns Oil and gas equipment manufacturers producing BOP components and large valve bodies with milled features Mining equipment builders turning crusher components and heavy wear parts with keyways and cross-holes Shipbuilding shops machining large propulsion components that require both turning and Y-axis milling

Frequently Asked Questions

01 Why choose the LYB over the LYA?

Choose the LYB when your parts require a 21-inch chuck for secure clamping. The LYB delivers 2,958 Nm torque (vs 2,432 Nm) and 45 kW (vs 37 kW), at the cost of lower max RPM (1,500 vs 2,000). If a 15-inch chuck handles your work, the LYA offers higher speed and lower cost.

02 How does the LYB compare to the LMB (no Y-axis)?

Same spindle, chuck, bed length, and live tooling. The LYB adds a 160 mm Y-axis for off-center milling operations. If your parts only need C-axis on-center milling, the LMB saves money. The Y-axis investment pays back quickly on heavy parts that would otherwise need a crane move to a VMC.

03 What does a PUMA 5100 LYB cost?

New machines run $290,000-$375,000 depending on options. The Y-axis and 21-inch chuck combination places this near the top of the 5100 pricing range. The ROI comes from eliminating secondary operations on heavy parts.

04 Can the Y-axis handle keyway milling on large shafts?

Yes. The 160 mm Y-axis travel combined with 4,000 RPM live tooling is well-suited for keyway milling along the full Z-axis travel. Keyway width is limited by the available end mill sizes and holder clearance in the turret, but standard industrial keyways are within capability.