Industrial CNC Machine Directory

DMG Mori CTX 1250 TC

$550,000 – $900,000 Updated 2026-03-17
01

Key Specifications

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

02

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.

03

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

04

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
05

Best For

Aerospace engine shaft components requiring combined turning and 5-axis milling in one clamping Oil and gas downhole tools and drilling components with complex off-axis features Heavy-industry power transmission shafts, couplings, and flanges requiring precision turning and milling
06

Frequently Asked Questions

01 What does the 'TC' designation mean for the CTX 1250 TC?

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 What is the B-axis swivel range on the CTX 1250 TC?

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 Can the CTX 1250 TC completely replace both a large lathe and a machining center?

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.

07

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