DMG Mori NEF 400

Est. $120,000 – $185,000 Possible older model Updated 2026-10-03

This model was not found in DMG Mori's current lineup when we checked on 2026-10-02 (lineup page). It may be a superseded or older model; the specifications below are as we last recorded them.

Key Specifications

max swing over bed

385 mm (15.2 in)

max swing over cross slide

350 mm (13.8 in)

max cutting diameter

350 mm (13.8 in) over bed and over cross slide

distance spindle to tailstock

902.5 mm (35.5 in) without chuck

max workpiece length with tailstock

650 mm (25.6 in) machinable

main spindle

ISM 65 integrated spindle motor

How much does the DMG Mori NEF 400 cost?

Estimated price range

Est.$120,000 – $185,000

Our best estimate for a cnc lathes / turning center in this class — not a quote from DMG Mori. Configuration moves it a long way.

Overview

The DMG Mori NEF 400 is a universal lathe with a hydraulic tailstock: 385 mm (15.2 in) of swing over the bed, a maximum cutting diameter of 350 mm (13.8 in) and 650 mm (25.6 in) of machinable length with the tailstock. It is not in DMG MORI's current lineup, so it will be met as a used machine; treat the listed figures as a guide and confirm them on the machine.

The main spindle is an ISM 65 integrated spindle motor with 4,500 rpm. Power is 11.5 kW at 40% ED and 8 kW at 100% ED (15.4 / 10.7 hp), and torque is 340 Nm at 40% ED and 240 Nm at 100% ED. Torque is high for the power, which means it is available low in the speed range, where a part in a 250 mm (10 in) chuck needs it. Bar capacity is 65 mm (2.56 in), through an 87 mm spindle bore and a drawbar with a 67 mm inner diameter.

The turret holds 12 VDI30 tools. Driven tools and the C-axis belong to the optional machine version V3: 6 driven tool stations at 4,500 rpm with 5.5 kW and 17.5 Nm at 40% ED, and a C-axis resolution of 0.001°. Those are drilling and light milling figures. A machine that is not a V3 only turns, so establish the version first.

The turret slide travels 255 mm (10.0 in) in X and 800 mm (31.5 in) in Z, with rapids of 30 m/min in both and feed forces of 4.5 kN in X and 6.2 kN in Z. The tailstock is hydraulic, with a 680 mm stroke, 6.8 kN of force and an MK 4 centre. The distance from spindle to tailstock is 902.5 mm (35.5 in) without a chuck. Weight is 3,500 kg (7,716 lb) without the chip conveyor, and the control is a Siemens 840D solutionline with the DMG MORI SLIMline panel.

The NEF 600 is the far larger machine, listed with a 400 mm (15.7 in) chuck, 1,500 mm (59.1 in) of turning length and 1,900 Nm of spindle torque.

Full Specifications

Parameter	Value
Max Swing Over Bed	385 mm (15.2 in)
Max Swing Over Cross Slide	350 mm (13.8 in)
Max Cutting Diameter	350 mm (13.8 in) over bed and over cross slide
Distance Spindle to Tailstock	902.5 mm (35.5 in) without chuck
Max Workpiece Length with Tailstock	650 mm (25.6 in) machinable
Main Spindle	ISM 65 integrated spindle motor
Main Spindle Speed	4,500 rpm
Main Spindle Power	11.5 kW at 40% ED / 8 kW at 100% ED (15.4 / 10.7 hp)
Main Spindle Torque	340 Nm at 40% ED / 240 Nm at 100% ED
C Axis Resolution	0.001° (optional machine version V3)
Spindle Head	Flat flange size 170 h5; front bearing Ø 130 mm; spindle bore 87 mm; drawbar inner diameter 67 mm
Max Bar Capacity	65 mm (2.56 in)
Max Chuck Diameter	250 mm (10 in)
Turret	12 x VDI30 (DIN 69880), 6 driven tool stations (optional V3); driven tools 4,500 rpm, 5.5 kW, 17.5 Nm at 40% ED
Turret Slide Travel Xz	255 / 800 mm (10.0 / 31.5 in)
Rapid Traverse Xz	30 / 30 m/min (1,181 ipm)
Feed Force	X 4.5 kN, Z 6.2 kN
Tailstock	Hydraulic, 680 mm stroke, 6.8 kN, MK 4 centre
Machine Weight	3,500 kg (7,716 lb) without chip conveyor; 3,700 kg with optional chip conveyor
CNC Control	Siemens 840D solutionline with DMG MORI SLIMline panel (ECOLINE)

Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.

Strengths & Limitations

Strengths

ISM 65 integrated spindle motor with 340 Nm at 40% ED and 4,500 rpm
65 mm (2.56 in) bar capacity through an 87 mm spindle bore
Hydraulic tailstock with a 680 mm stroke and 6.8 kN, for shafts up to 650 mm (25.6 in) machinable length
30 m/min rapids in X and Z, with feed forces of 4.5 kN and 6.2 kN
The optional V3 version has 6 driven tool stations and a C-axis with 0.001° resolution

Limitations

Driven tools and the C-axis exist only in the optional V3 machine version
Driven-tool output is 5.5 kW and 17.5 Nm at 40% ED, enough for drilling and light milling only
Continuous spindle power is 8 kW at 100% ED
The turret slide moves in X and Z only; no Y-axis is listed

Best For

Shaft work between chuck and tailstock up to 650 mm (25.6 in) Chuck parts up to 350 mm (13.8 in) cutting diameter in a 250 mm (10 in) chuck Bar parts from stock up to 65 mm (2.56 in) Simple cross drilling on V3 machines with 6 driven tool stations

Frequently Asked Questions

01 Is the NEF 400 still a current model?

It is not in DMG MORI's current lineup, so anyone considering one is considering a used machine. The listed figures are a guide. The points that vary between machines are the V3 version with driven tools and C-axis, and the optional chip conveyor, so check both on the machine itself.

02 What spindle does the NEF 400 have?

An ISM 65 integrated spindle motor with 4,500 rpm. Listed power is 11.5 kW at 40% ED and 8 kW at 100% ED (15.4 / 10.7 hp), and torque is 340 Nm at 40% ED and 240 Nm at 100% ED. The spindle bore is 87 mm, the drawbar inner diameter 67 mm, bar capacity 65 mm (2.56 in) and the maximum chuck diameter 250 mm (10 in).

03 Does the NEF 400 have driven tools?

Only in the optional machine version V3. That version has 6 driven tool stations in the 12 x VDI30 turret, with 4,500 rpm, 5.5 kW and 17.5 Nm at 40% ED, and a C-axis with 0.001° resolution. No Y-axis is listed, so milling is limited to what the C-axis and X and Z can reach.

04 How long a part fits the NEF 400?

The machinable workpiece length with the tailstock is 650 mm (25.6 in). The distance from spindle to tailstock is 902.5 mm (35.5 in) without a chuck, and the turret slide has 800 mm (31.5 in) of Z travel. The hydraulic tailstock has a 680 mm stroke, 6.8 kN of force and an MK 4 centre.

05 How heavy is the NEF 400?

3,500 kg (7,716 lb) without the chip conveyor and 3,700 kg with the optional chip conveyor. The NEF 600 is in a different class at approximately 11,000 kg, with a 400 mm (15.7 in) chuck against the 250 mm (10 in) maximum chuck diameter of the NEF 400.