DMG Mori CTX beta 1250 TC 4A
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 CTX beta 1250 TC 4A 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
Two tool carriers cutting at the same time are the point of the DMG MORI CTX beta 1250 TC 4A: a B-axis turning and milling spindle plus a lower turret with 12 or 16 driven stations. The work envelope is 490 mm (19.3 in) in X, 200 mm (7.9 in) in Y and 1,200 mm (47.2 in) in Z, for workpieces up to 340 mm (13.4 in) in diameter and 1,185 mm (46.7 in) long, with 102 mm (4 in) of bar capacity.
The turret is the second carrier. It comes with 12 or 16 driven stations (VDI40 / VDI30) and is built as a DirectDrive unit with 10,000 rpm. In practice it can turn, drill or steady the part while the B-axis spindle mills, or both carriers can cut at once to shorten a roughing cycle. DMG MORI calls this parallel processing, and it pays off on series parts where cycle time matters more than changeover time.
The compactMASTER turning and milling spindle is rated 12,000 rpm, 29.5 hp and 88.5 ft lb, with a 20,000 rpm high-speed version. Its B-axis swivels ±110° and its Y stroke is ±3.9 in, which agrees with the 200 mm (7.9 in) Y travel in the table.
A good part of DMG MORI's description concerns thermal and measuring hardware. Linear scales are fitted in X1, Y1 and Z1 of the travelling column and in X2 of the turret, and are optional in Y2 and Z2 and in Z3 at the counter spindle. The main and counter spindle motors are water-cooled, the turret drive and the X, Y and Z motors are cooled, and the axes run on size 45 guideways with 1.6 in ball screws.
Automation is optional: an integrated handling system, portal loading, or a bar package with an automatic workpiece pickup device. The CTX beta 450 TC gives more room around the part, with 750 mm (29.5 in) of X and 250 mm (9.8 in) of Y, on a shorter 1,100 mm (43.3 in) Z.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 490 mm (19.3 in) |
| Y-Axis Travel | 200 mm (7.9 in) |
| Z-Axis Travel | 1,200 mm (47.2 in) |
| Max Workpiece Diameter | 340 mm (13.4 in) |
| Max Workpiece Length | 1,185 mm (46.7 in) |
| Max Bar Capacity | 102 mm (4 in) |
| B Axis Swivel | ±110° |
| Turret Stations | 12 or 16 driven stations (VDI40 / VDI30), second tool carrier |
| Driven Tool Speed | 10,000 rpm (DirectDrive turret) |
| Milling Spindle Speed | 12,000 rpm (compactMASTER); 20,000 rpm as high-speed version |
| Milling Spindle Power | 29.5 hp (compactMASTER, 12,000 rpm) |
| Milling Spindle Torque | 88.5 ft lb (compactMASTER, 12,000 rpm) |
Specifications sourced from dmgmori.com — verified 2026-10-02
Strengths & Limitations
Strengths
- Second tool carrier: a lower turret with 12 or 16 driven stations (VDI40 / VDI30) for cutting with two tools at once
- DirectDrive turret with 10,000 rpm for driven tools
- compactMASTER spindle with 12,000 rpm, 29.5 hp and 88.5 ft lb, or 20,000 rpm as a high-speed version
- Linear scales in X1, Y1, Z1 and X2, with Y2, Z2 and Z3 available as options
- Water-cooled main and counter spindle motors, cooled turret drive and cooled axis motors
- 102 mm (4 in) bar capacity with an optional bar package and workpiece pickup device
Limitations
- X travel of 490 mm (19.3 in) is short next to the CTX beta 450 TC, which has 750 mm (29.5 in) of X and 250 mm (9.8 in) of Y
- B-axis swivel is ±110°, so check tool reach on undercut and back-facing features before committing a part
- Linear scales in Y2, Z2 and Z3 are options, as are the handling system, portal loading and the bar package
- The 20,000 rpm spindle is a separate high-speed version; the 29.5 hp and 88.5 ft lb rating is given for the 12,000 rpm spindle
Best For
Frequently Asked Questions
01
It is a lower turret with 12 or 16 driven stations (VDI40 / VDI30), built as a DirectDrive unit with 10,000 rpm. It works alongside the B-axis turning and milling spindle, so two tools can cut at once. DMG MORI presents this parallel processing as the main productivity gain of the machine.
02
490 mm (19.3 in) in X, 200 mm (7.9 in) in Y and 1,200 mm (47.2 in) in Z. The table gives a maximum workpiece of 340 mm (13.4 in) in diameter and 1,185 mm (46.7 in) in length, and a bar capacity of 102 mm (4 in).
03
The compactMASTER turning and milling spindle is rated 12,000 rpm, 29.5 hp and 88.5 ft lb. A high-speed version with 20,000 rpm is also offered. The B-axis swivels ±110° and the Y stroke is ±3.9 in.
04
X1, Y1 and Z1 on the travelling column and X2 on the turret have linear scales. They are optional in Y2 and Z2 of the turret and in Z3 of the counter spindle, so order them if the turret or the counter spindle will be holding close tolerances.
05
DMG MORI lists optional automation for serial production: an integrated handling system or portal loading. A complete package for bar machining with an automatic workpiece pickup device is also optional, working with the 102 mm (4 in) bar capacity.
Videos
EnTeHa Tube
Community Discussions
Options and configuration advice
Pricing and buying discussion
Links to community discussions. Summaries are editorial — visit the original thread for full context.
