DMG Mori NV 4000 DCG

$135,000 - $180,000 Updated 2026-03-13

Key Specifications

X Travel

400 mm (15.7 in)

Y Travel

400 mm (15.7 in)

Z Travel

400 mm (15.7 in)

Max Spindle

20,000 RPM (24,000 RPM optional)

Spindle Taper

BT 30

Tool Capacity

16 (turret-type ATC); 20 optional

Overview

The DMG Mori NV 4000 DCG is a compact, precision-focused vertical machining center built around DMG Mori’s DCG (Driven at Center of Gravity) drive technology. With 400 x 400 x 400 mm (15.7 x 15.7 x 15.7 in) of travel, it is designed for small precision parts where accuracy and surface finish are paramount — not large workpieces.

The DCG concept places the ball screw drive force at the center of gravity of each moving axis, eliminating pitch moment and reducing vibration at the source. This results in positioning accuracy of ±0.002 mm and exceptional surface finishes even at high feed rates. It is one of the most geometrically accurate production VMCs available under $200,000.

The spindle runs a BT 30 taper at 20,000 RPM with 7.5 kW (10 hp) in the standard configuration. A 24,000 RPM option is available for high-speed finishing. Rapid traverse hits 50 m/min (1,969 ipm) thanks to the DCG drive system, and the 16-tool turret-type ATC delivers fast tool changes.

The machine footprint is remarkably compact at approximately 1,700 x 2,300 mm, making it practical for shops with limited floor space. The 530 x 400 mm (20.9 x 15.7 in) table supports 200 kg (441 lb), and the 4,500 kg (9,921 lb) machine weight provides good stability for its size class.

New NV 4000 DCG machines price between $135,000 and $180,000. It competes with other precision compact VMCs like the Makino S33 and Roku-Roku HPM series in the small-part, high-accuracy segment. Specs sourced from DMG Mori published data and industry references.

Full Specifications

Parameter	Value
X-Axis Travel	400 mm (15.7 in)
Y-Axis Travel	400 mm (15.7 in)
Z-Axis Travel	400 mm (15.7 in)
Max Spindle Speed	20,000 RPM (24,000 RPM optional)
Spindle Taper	BT 30
Spindle Motor Power	7.5 kW (10 hp) continuous
Tool Capacity	16 (turret-type ATC); 20 optional
Table Size	530 x 400 mm (20.9 x 15.7 in)
Max Table Load	200 kg (441 lb)
Rapid Traverse Rate	50 m/min (1,969 ipm)
Machine Weight	4,500 kg (9,921 lb)
CNC Control	FANUC 0i-MF Plus / CELOS X
Guide Type	Linear roller guides with DCG drive
Positioning Accuracy	±0.002 mm (±0.00008 in)
Repeatability	±0.001 mm (±0.00004 in)
600 Mm	23.6 in.
400 Mm	15.7 in.
350 Kg	771.6 lbs.
750 Mm	29.5 in.
450 Mm	17.7 in.

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

Strengths & Limitations

Strengths

DCG drive technology eliminates pitch moment for superior surface finish and geometric accuracy compared to conventional VMCs
±0.002 mm positioning accuracy rivals machines costing significantly more, making it exceptional value for precision work
50 m/min rapid traverse is among the fastest in the compact VMC class, minimizing non-cutting time
20,000 RPM standard with 24,000 RPM option delivers high-speed finishing capability for mold, medical, and electronics components
Compact footprint under 4 m² fits in tight shop layouts where larger VMCs cannot be placed
BT 30 taper reduces tooling cost compared to BT 40 machines for small-diameter cutter work

Limitations

400 mm cube travel severely limits part size — this is strictly a small-parts machine
200 kg table load restricts fixture weight and rules out heavy 4th-axis setups
BT 30 taper limits maximum cutter diameter and cutting force for larger tools
7.5 kW spindle power is modest; heavy roughing even in small parts requires conservative parameters
16-tool standard ATC is tight for complex multi-operation parts

Best For

Medical device manufacturers machining small titanium and stainless steel implant components to tight tolerances Electronics and connector manufacturers producing precision copper, brass, and aluminum parts Mold shops doing fine cavity finishing and electrode machining where surface finish is critical Watch and instrument manufacturers needing ±0.002 mm accuracy on small components Shops needing a precision VMC in a compact footprint for secondary operations or dedicated cell production

Frequently Asked Questions

01 What does a new DMG Mori NV 4000 DCG cost?

New NV 4000 DCG machines start around $135,000. With the 24,000 RPM spindle, probing, and expanded ATC, expect $155,000-$180,000. Used units from 2012-2018 sell for $55,000-$90,000.

02 What is DCG (Driven at Center of Gravity)?

DCG is a DMG Mori drive concept where the ball screw force is applied at the center of gravity of each moving axis rather than offset from it. This eliminates the pitching moment that causes vibration in conventional designs. The result is smoother axis motion, better surface finish, and higher accuracy — especially at high feed rates.

03 How does the NV 4000 DCG compare to the NVD 6000 DCG?

The NVD 6000 DCG is larger in every way: 600 x 500 x 500 mm travel vs 400 mm cube, BT 40 vs BT 30 spindle, 500 kg vs 200 kg table load. Choose the NV 4000 for parts under 400 mm where the compact footprint and BT 30 tooling cost savings matter. Step up to the NVD 6000 for medium-sized precision work.

04 Is the NV 4000 DCG good for aluminum high-speed machining?

Yes, it excels at small aluminum parts. The 20,000-24,000 RPM spindle, 50 m/min rapids, and DCG drive combine for fast cycle times with excellent surface finish. For larger aluminum parts beyond 400 mm, look at the DMV 60 or CMX series.