DMG Mori NLX 4000 Y

$300,000 - $500,000 Updated 2026-03-16

Key Specifications

Max Spindle

2,500 RPM

Rapid Traverse

30 m/min (1,181 ipm) X and Z

Spindle Power

30 kW (40.2 hp)

Max Turn Length

2,050 mm (80.7 in) [Type /2000]

max turning diameter

500 mm (19.7 in)

spindle torque

1,550 Nm

Overview

The DMG Mori NLX 4000 Y is the Y-axis-equipped configuration of the NLX 4000 large universal turning center, purpose-built for shops that machine large-diameter shaft and chucking components that also require substantial off-center milling and complex prismatic features. The Y-axis adds 120 mm of travel (plus/minus 60 mm from centerline), enabling off-center drilling, radial milling, keyway cutting, and complex off-axis features on large workpieces without secondary machine setups.

With a maximum turning diameter of 500 mm (19.7 in) and turning length up to 2,050 mm (80.7 in) in the longest /2000 bed configuration, the NLX 4000 Y handles large shaft work — pump shafts, propeller shafts, large spindles, and production turning of heavy-duty equipment components — that smaller NLX platforms cannot approach. The A2-11 spindle nose with a standard 15-inch (381 mm) chuck runs at 2,500 RPM, with 30 kW (40.2 hp) and 1,550 Nm of torque on tap for deep roughing cuts in steel, stainless, and superalloys.

The BMT 60 driven turret provides up to 10,000 RPM with 100 Nm of torque for live tooling operations. Combined with the Y-axis and C-axis, this enables keyways, flats, cross-holes, cam profiles, and complex milled pockets on large-diameter turned parts. Bar capacity of 102 mm (4.0 in) supports production bar-fed work on oversized material.

Box guideways on all axes provide the rigidity and vibration damping that heavy-duty large-diameter turning requires. Thermal displacement control with cooled ball screws and spindle temperature management holds tolerances through extended production runs where thermal drift in large machine structures is most problematic. The NLX 4000 Y runs CELOS with Siemens 840D solutionline, offering the full CELOS production monitoring and tool management suite.

The NLX 4000 Y is the solution for shops that consistently machine large shaft components with complex combined turned and milled features, eliminating the transfer to a separate machining center for secondary operations. It competes directly with the Mazak QT-350MY, Okuma LB4000EX-MYW, and Doosan Puma 3100SY. Specs sourced from DMG Mori published data.

Full Specifications

Parameter	Value
Max Turning Diameter	500 mm (19.7 in)
Max Turning Length	2,050 mm (80.7 in) [Type /2000]
Max Spindle Speed	2,500 RPM
Spindle Motor Power	30 kW (40.2 hp)
Spindle Torque	1,550 Nm
Spindle Nose	A2-11
Chuck Size	381 mm (15 in)
Bar Capacity	102 mm (4.0 in)
X Axis Travel	280 mm (11.0 in)
Y Axis Travel	120 mm (4.7 in) / +/-60 mm from centerline
Z Axis Travel	2,100 mm (82.7 in) [Type /2000]
Turret Type	BMT 60, 12 stations
Driven Tool Speed	10,000 RPM
Driven Tool Torque	100 Nm
C Axis	Yes, for full C-axis contouring
Rapid Traverse Rate	30 m/min (1,181 ipm) X and Z
Bed Lengths	/700, /1250, /1500, /2000 (between centers)
Machine Weight	10,000 kg (22,046 lb) [Type /2000]
CNC Control	CELOS with Siemens 840D solutionline
18 In	450 mm
49 In	1,255 mm
4 In	90 mm
10 In	260 mm
53 In	1,345 mm
Details	Strongest version for 210 kg payloadFree accessibility to the machine and the automationStrongest version for 210 kg payloadFree accessibility to the machine and the automation
Strongest Version For 210 Kg Payloadfree Accessibility To The Machine And The Automation	Strongest version for 210 kg payloadFree accessibility to the machine and the automation
Strongest Version For 210 Kg Payload	Free accessibility to the machine and the automation
Customer Benefits	Before the actual machining, the machining status can be checked by using a graphic
20 In	500 mm
31 In	795 mm
28 In	705 mm

Specifications sourced from si.dmgmori.com — verified 2026-03-28

Strengths & Limitations

Strengths

Y-axis travel of 120 mm enables genuine off-center milling on large-diameter parts, eliminating secondary machining center setups for most features
1,550 Nm spindle torque provides the authority to rough large-diameter steel and stainless workpieces at aggressive feed rates without compromise
500 mm turning diameter and up to 2,050 mm turning length handle the full range of large shaft and chucking work in heavy industry
102 mm bar capacity enables production bar-fed operations on oversized material that competing platforms cannot accommodate
BMT 60 turret at 10,000 RPM and 100 Nm delivers genuine productive milling capability on large workpieces, not just token live tooling
Box guideways provide the dynamic rigidity needed for heavy interrupted cuts and large-diameter face turning without chatter
CELOS with Siemens 840D solutionline provides full production connectivity and tool management for job shops and production facilities

Limitations

2,500 RPM max spindle speed limits productivity on smaller-diameter work where higher surface footage is needed
120 mm Y-axis travel, while substantial for a lathe, does not replicate the freedom of a full machining center for complex prismatic work
10,000 kg machine weight requires reinforced foundation and significant rigging investment at installation
At $300K-$500K, the NLX 4000 Y is a major investment for shops that primarily run smaller-diameter turning work
12-station turret limits total tool count for complex parts requiring many different operations and tool types

Best For

Oil and gas manufacturers producing large pump shafts, drill collars, and downhole tool bodies requiring both turning and off-center milling Power generation shops machining large generator shafts, turbine rotors, and pump components with combined turned and milled features Heavy equipment manufacturers producing large axles, spindles, and driveline components with keyways, flats, and cross-hole features Aerospace contractors turning large-diameter engine casings and structural components with milled features on a single platform Marine and shipbuilding manufacturers machining propeller shafts, rudder stocks, and large drive components in stainless and bronze

Frequently Asked Questions

01 What does a DMG Mori NLX 4000 Y cost?

A new NLX 4000 Y starts around $300,000 for the /700 bed configuration and can reach $450,000-$500,000 for the /2000 bed with BMT 60 turret, Y-axis, and Siemens control. Used machines from 2015-2022 typically sell for $130,000-$280,000 depending on condition, bed length, and options.

02 What is the difference between the NLX 4000 and NLX 4000 Y?

The NLX 4000 Y adds a Y-axis with 120 mm of travel (plus/minus 60 mm from centerline) over the standard NLX 4000. This enables off-center drilling, radial milling, and complex milled features on large-diameter workpieces. The Y-axis adds approximately $40,000-$70,000 to the base machine price and requires C-axis programming capability.

03 NLX 4000 Y vs Mazak QT-350MY?

Both are large Y-axis universal turning centers in the same class. The NLX 4000 Y offers the NLX platform's renowned rigidity and thermal stability. The Mazak QT-350MY features MAZATROL conversational programming which some shops find more accessible. Both machines are competitive; decision typically comes down to control preference and dealer service coverage.

04 What bed length should I choose for the NLX 4000 Y?

Choose based on your longest workpieces: /700 for chucking work under 700 mm, /1250 for medium shafts, /1500 for longer shafts, /2000 for work up to approximately 2,050 mm turning length. Longer beds add weight and cost; buy the shortest bed that covers your actual part range.

05 Can the NLX 4000 Y run a sub-spindle?

A sub-spindle is available on certain NLX 4000 Y configurations, particularly on shorter bed variants. Adding a sub-spindle enables complete backworking of turned parts in a single setup. Verify sub-spindle availability with your DMG Mori dealer, as the longer /2000 bed may not support sub-spindle due to machine length constraints.