DMG Mori NT 4250 DCG
Image: dmgmori.com, DMG Mori
Key Specifications
X Travel
Y Travel
Z Travel
Max Workpiece ⌀
max workpiece length
max bar capacity
How much does the DMG Mori NT 4250 DCG cost?
Estimated price range
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 4250 DCG is a multi-axis turn-mill center with a B-axis tool spindle, sized for workpieces up to 660 mm (26 in) in diameter and 1,542 mm (60.7 in) long. Its travels are 750 mm (29.5 in) in X, 420 mm (16.5 in) in Y and 1,650 mm (65 in) in Z, and bar capacity is 80 mm (3.1 in).
The Y travel is the figure to notice. DMG MORI's CLX 450 TC and CTX beta 450 TC have the same 750 mm (29.5 in) of X but only 200 mm (7.9 in) and 250 mm (9.8 in) of Y, on 1,100 mm (43.3 in) of Z. With 420 mm (16.5 in) the NT 4250 DCG can mill, drill and bore well away from the spindle center line, which is what prismatic features on a turned part demand.
The B-axis is driven by a direct drive motor (DDM) and rotates ±120°, and DMG MORI lists simultaneous 5-axis machining of complex parts. The tool spindle follows the 2-face contact Capto specification. The DCG in the name stands for Driven at the Center of Gravity, which DMG MORI combines with a Box in Box structure, and the ram is an octagonal design (ORC) intended to control heat during fast feed moves.
A digital tailstock is standard, so shaft work between chuck and center needs no option, and the operation panel both moves and swivels to follow the operator during setups. The NT 4300 DCG has identical travels and trades length for bore, with 90 mm (3.5 in) of bar capacity and a 1,498 mm (59 in) maximum workpiece length against 80 mm (3.1 in) and 1,542 mm (60.7 in) here.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 750 mm (29.5 in) |
| Y-Axis Travel | 420 mm (16.5 in) |
| Z-Axis Travel | 1,650 mm (65 in) |
| Max Workpiece Diameter | 660 mm (26 in) |
| Max Workpiece Length | 1,542 mm (60.7 in) |
| Max Bar Capacity | 80 mm (3.1 in) |
| B Axis Swivel | ±120° |
| B Axis Drive | Direct drive motor (DDM) |
| Tool Spindle Interface | Capto, 2-face contact |
| Tailstock | Digital tailstock as standard |
Specifications sourced from dmgmori.com — verified 2026-10-02
Strengths & Limitations
Strengths
- 420 mm (16.5 in) of Y travel on a 660 mm (26 in) maximum workpiece diameter
- B-axis with direct drive motor (DDM) and ±120° rotation for simultaneous 5-axis machining
- Digital tailstock equipped as standard
- Tool spindle with 2-face contact Capto specification
- 1,650 mm (65 in) of Z travel for workpieces up to 1,542 mm (60.7 in) long
- Box in Box structure Driven at the Center of Gravity, with octagonal ram construction for heat control
Limitations
- Bar capacity is 80 mm (3.1 in); the NT 4300 DCG passes 90 mm (3.5 in) on the same travels
- Y travel of 420 mm (16.5 in) does not span the full 660 mm (26 in) diameter, so features near the rim of the largest parts need the part rotated into reach
- The Capto tool spindle means tooling held in other interfaces cannot be carried over
- X travel of 750 mm (29.5 in) is shorter than the 1,040 mm (40.9 in) of the NT 5400 DCG, the step up for larger diameters
Best For
Frequently Asked Questions
01
Travels and maximum diameter are the same: 750 mm (29.5 in), 420 mm (16.5 in) and 1,650 mm (65 in), and 660 mm (26 in). The NT 4250 DCG takes bar up to 80 mm (3.1 in) and workpieces up to 1,542 mm (60.7 in) long, while the NT 4300 DCG takes 90 mm (3.5 in) bar and 1,498 mm (59 in) workpieces.
02
±120°. The B-axis has a direct drive motor (DDM) installed in it, and DMG MORI lists simultaneous 5-axis machining of complex parts as a capability of the machine. The tool spindle it carries uses a 2-face contact Capto interface.
03
Yes. A digital tailstock is equipped as standard on the NT 4250 DCG. With a maximum workpiece length of 1,542 mm (60.7 in) inside 1,650 mm (65 in) of Z travel, that covers shaft work between chuck and center from the base machine.
04
Driven at the Center of Gravity. DMG MORI pairs it on the NT series with a Box in Box structure and names both as the basis for high-speed, high-accuracy machining. The ram is an octagonal design (ORC) that DMG MORI describes as a solution for heat control during high-speed feed.
05
The NT 5400 DCG is the next size up, with travels of 1,040 mm (40.9 in) in X, 510 mm (20.1 in) in Y and 2,140 mm (84.3 in) in Z. The NT 4250 DCG travels 750 mm (29.5 in), 420 mm (16.5 in) and 1,650 mm (65 in).
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