DMG Mori CTX 1250 TC
Key Specifications
max turning diameter mm
max turning length mm
bar capacity mm
main spindle speed rpm
main spindle power kW
main spindle torque Nm
Overview
The DMG Mori CTX 1250 TC is a high-capability turn-mill center that combines a large-bore turning center with full milling functionality, enabling complete machining of complex, large-diameter components in a single setup. The TC (Turn & Mill Complete) designation indicates the integration of a B-axis milling spindle with a swivel range of ±120°, allowing five-axis milling operations on the same machine that performs primary turning — eliminating workpiece transfers and associated re-fixturing errors.
With a maximum turning diameter of 700 mm and up to 1,250 mm between centers, the CTX 1250 TC handles substantial shaft components, large flanges, and complex housings that would otherwise require multiple dedicated machines. The main spindle accommodates bars up to 102 mm in diameter and delivers up to 4,000 rpm with 1,000 Nm of torque — sufficient for aggressive roughing of large steel and titanium forgings. A counter spindle mirrors the main spindle's capability, enabling complete backworking without a second setup.
The integrated B-axis milling spindle reaches 12,000 rpm with 35 kW of power, providing genuine milling capability for off-axis features, compound angles, and deep pockets that would be impossible on a conventional turning center. The Y-axis adds ±175 mm of off-centerline travel, extending this milling reach to full prismatic feature machining on the turned component.
Controlled via CELOS with a Siemens 840D sl or Fanuc 31i, the CTX 1250 TC is well-suited to aerospace engine shaft components, oil and gas downhole tools, and heavy-industry power transmission components where cycle time reduction through single-setup complete machining delivers measurable cost savings.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter Mm | 700 |
| Max Turning Length Mm | 1250 |
| Bar Capacity Mm | 102 |
| Main Spindle Speed Rpm | 4000 |
| Main Spindle Power KW | 52 |
| Main Spindle Torque Nm | 1000 |
| Counter Spindle Speed Rpm | 4000 |
| Counter Spindle Power KW | 35 |
| Y Axis Travel Mm | ±175 |
| B Axis Swivel Deg | ±120 |
| Milling Spindle Speed Rpm | 12000 |
| Milling Spindle Power KW | 35 |
| Milling Spindle Torque Nm | 100 |
| Turret Stations | 12 |
| Driven Tool Speed Rpm | 6000 |
| Tool Magazine Capacity | 36 |
| Rapid Traverse X M Min | 30 |
| Rapid Traverse Z M Min | 30 |
| Positioning Accuracy Mm | 0.005 |
| Repeatability Mm | 0.003 |
| CNC Control | Siemens 840D sl / Fanuc 31i (CELOS) |
| Machine Weight Kg | 28000 |
| 13 In | 340 mm |
| 47 In | 1,185 mm |
| 4 In | 102 mm |
| 19 In | 490 mm |
| 8 In | 200 mm |
| Details | Strongest version for 210 kg payloadFree accessibility to the machine and the automationStrongest version for 210 kg payloadFree accessibility to the machine and the automation |
| Strongest Version For 210 Kg Payloadfree Accessibility To The Machine And The Automation | Strongest version for 210 kg payloadFree accessibility to the machine and the automation |
| Strongest Version For 210 Kg Payload | Free accessibility to the machine and the automation |
| Procedure | User Interface |
| Customer Benefits | MPC Graph: current and learned process values. / MPC Diagnostics: stock condition, number of impact and crash. |
Specifications sourced from en.dmgmori.com — verified 2026-03-28
Strengths & Limitations
Strengths
- B-axis milling spindle with ±120° swivel enables 5-axis mill-turn operations in a single setup
- 700 mm maximum turning diameter handles large aerospace shafts, flanges, and housings
- 102 mm bar capacity and 1,000 Nm main spindle torque support large billet and forging roughing
- Counter spindle enables complete backworking without re-fixturing, eliminating second setups entirely
Limitations
- High capital cost requires sustained complex part production to justify investment over separate turning and milling machines
- 28,000 kg machine weight requires reinforced flooring and significant installation preparation
- Complex programming requirements for 5-axis mill-turn operations demand skilled CAM programming expertise
Best For
Frequently Asked Questions
01
TC stands for Turn & Mill Complete, indicating the machine integrates a B-axis milling spindle capable of five-axis interpolation alongside the turning functionality. This enables complete machining of complex components with both rotational and prismatic features in a single clamping on one machine.
02
The integrated milling head swivels ±120° on the B-axis, enabling five-axis simultaneous milling, compound angle drilling, and off-axis feature machining anywhere on the workpiece surface — including end faces and the full cylindrical surface of shafts and flanges.
03
For many workpiece types, yes. The CTX 1250 TC's combination of main and counter spindles with full Y-axis and B-axis milling capability enables most features of a complex part to be produced in a single machine. However, for very large prismatic workpieces or extreme material removal rates, dedicated turning and milling machines may still offer cycle time advantages for high-volume production.
Videos
DMG MORI
DMG MORI
marthajames100
DMG MORI
Surplex
Community Discussions
Comparison and buying advice — practicalmachinist.com/forum/threads/dmg-mori-ctx-beta-1250-tc-vs...
Community discussion — DMGMORI, Gildemeister, Maho CNC | NewDMGCTXBeta / Gamma...
Pricing and buying discussion — DMGMoriCTXvs Mazak Integrex vs Okuma Multus...
Pricing and buying discussion for this machine model.
Community discussion — Urgently looking for programming instructions for DMG CTX ...
Community discussion — Need Help! Twin spindle milling/turning CTX BETA 1250TC - CNCzone
Community discussion — CTX beta 1250 TC - CNCzone
Community discussion — Need Help! Set-up multi-task CTX - cnczone.com
Links to community discussions. Summaries are editorial — visit the original thread for full context.




