DMG Mori Mill-Turn / Multi-Tasking Machines

DMG Mori NT 6600 DCG

Est. $1,200,000 - $1,800,000 Specs verified 2026-10-02 · dmgmori.com Updated 2026-10-02

Image: dmgmori.com, DMG Mori

Key Specifications

X Travel

1,040 mm (40.9 in)

Y Travel

660 mm (26 in)

Z Travel

6,150 mm (242.1 in)

Max Workpiece ⌀

1,070 mm (42.1 in)

max workpiece length

6,076 mm (239.2 in)

max bar capacity

164 mm (6.5 in)

How much does the DMG Mori NT 6600 DCG cost?

Estimated price range

Est.$1,200,000 - $1,800,000

Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from DMG Mori. Configuration moves it a long way.

Overview

The DMG MORI NT 6600 DCG is a turn-mill center for very long shafts: up to 6,076 mm (239.2 in) long and 1,070 mm (42.1 in) in diameter. Z travel is 6,150 mm (242.1 in), X travel 1,040 mm (40.9 in) and Y travel 660 mm (26 in), and bar capacity is 164 mm (6.5 in).

Length is what the machine is about. The NT 5400 DCG has the same 1,040 mm (40.9 in) of X travel but stops at 2,140 mm (84.3 in) in Z, so the NT 6600 DCG offers close to three times the Z travel, and more Y as well: 660 mm (26 in) against 510 mm (20.1 in).

Parts of this proportion, almost six times as long as the maximum diameter, cannot be cut unsupported. DMG MORI lists a steady rest as optional equipment, with servo motors on its X- and Z-axes as standard so that it is positioned by the drives and not by hand, which shortens setup. A long boring bar is the other listed option, for deep bores in shaft ends and hollow parts.

The rest of DMG MORI's description concerns three design features. DCG, the drive concept the model is named for, is credited with longer tool life, better surface quality and roundness, and strong acceleration. The Direct Drive Motor on the rotary axis works with zero backlash and is described as needing less maintenance. ORC is listed for its damping, for controlling thermal displacement and for high-speed, high-precision feed.

DMG MORI's published data for this model gives no spindle rating, tool magazine size or machine weight, and on a machine of this size those decide the foundation, the crane and the tooling. Get them in writing with the quotation.

Full Specifications

Parameter	Value
X-Axis Travel	1,040 mm (40.9 in)
Y-Axis Travel	660 mm (26 in)
Z-Axis Travel	6,150 mm (242.1 in)
Max Workpiece Diameter	1,070 mm (42.1 in)
Max Workpiece Length	6,076 mm (239.2 in)
Max Bar Capacity	164 mm (6.5 in)
Steady Rest	Optional equipment; servo motors as standard on the X- and Z-axes
Long Boring Bar	Optional equipment

Specifications sourced from dmgmori.com — verified 2026-10-02

Strengths & Limitations

Strengths

6,150 mm (242.1 in) of Z travel for workpieces up to 6,076 mm (239.2 in) long
Maximum workpiece diameter of 1,070 mm (42.1 in) with 660 mm (26 in) of Y travel
Bar capacity of 164 mm (6.5 in) through the spindle
Optional steady rest with servo motors on its X- and Z-axes as standard, which cuts setup time
Direct Drive Motor rotary axis drive with zero backlash
Long boring bar available as optional equipment

Limitations

The steady rest is optional equipment, yet shafts near 6,076 mm (239.2 in) will need support along their length
The long boring bar is also an option, so deep-bore work has to be specified in the order
X travel is 1,040 mm (40.9 in), the same as the NT 5400 DCG, so the extra capacity is in length and Y, not in X
660 mm (26 in) of Y travel does not span the 1,070 mm (42.1 in) maximum diameter, so features near the rim need the part rotated into reach

Best For

Long shafts and rolls up to 6,076 mm (239.2 in) Large-diameter shaft work up to 1,070 mm (42.1 in) Deep bores in shaft ends using the optional long boring bar Milled features along long parts within 660 mm (26 in) of Y travel

Frequently Asked Questions

01 How long a workpiece can the NT 6600 DCG machine?

Up to 6,076 mm (239.2 in), with a maximum diameter of 1,070 mm (42.1 in). Z travel is 6,150 mm (242.1 in), X travel 1,040 mm (40.9 in) and Y travel 660 mm (26 in). Bar capacity is 164 mm (6.5 in).

02 How does the NT 6600 DCG differ from the NT 5400 DCG?

X travel is the same at 1,040 mm (40.9 in). The NT 5400 DCG has 510 mm (20.1 in) of Y and 2,140 mm (84.3 in) of Z, while the NT 6600 DCG has 660 mm (26 in) of Y and 6,150 mm (242.1 in) of Z. It is the choice when part length, not diameter, is the limit.

03 Is a steady rest included?

No, it is listed as optional equipment. When ordered, the steady rest has servo motors on its X- and Z-axes as standard, which DMG MORI says reduces setup time. For shafts approaching 6,076 mm (239.2 in), settle the number and position of steady rests before ordering.

04 What do DCG, the Direct Drive Motor and ORC do for the user?

They are the three design features DMG MORI highlights. DCG is credited with longer tool life, improved surface quality and roundness, and strong acceleration. The Direct Drive Motor gives a rotary axis with zero backlash, high-speed rotation and high-precision indexing. ORC is listed for damping, control of thermal displacement and high-speed, high-precision feed.

05 What should be clarified before ordering?

DMG MORI's published data for this model covers travels, workpiece limits and bar capacity. Spindle ratings, magazine size, machine weight and floor space are not given there, and for a machine with 6,150 mm (242.1 in) of Z travel they determine the foundation and the lifting plan. Ask for them with the quotation.