# DMG MORI CTX beta 1250 TC 4A

Hardware · `CTX beta 1250 TC 4A` · verification: source checked

The CTX beta 1250 TC 4A is a DMG MORI turn-mill machine that combines turning with milling using a compactMASTER turn-mill spindle and a second tool carrier. Its linear strokes are 490 mm in X, 200 mm in Y and 1,200 mm in Z, and it accepts workpieces up to 340 mm diameter and 1,185 mm long, with 102 mm bar capacity. The B-axis swivels ±110° so tools can approach the workpiece at an angle.

## Specification

| Property | Value |
|---|---|
| Category | cnc multitasking |
| Travel X | 490 mm |
| Travel Y | 200 mm |
| Travel Z | 1200 mm |
| Max turning diameter | 340 mm |
| Max turning length | 1185 mm |
| Bar capacity | 102 mm |

## Connected

- Manufacturer: [DMG MORI](https://machineschema.com/manufacturer/dmg-mori.md)

## Study notes

- Second tool carrier is a turret with 12 or 16 driven stations (VDI40 / VDI30); a DirectDrive turret version runs at 10,000 rpm with 80 mm Y-stroke.
- compactMASTER turn-mill spindle: 12,000 rpm, 22 kW, 120 Nm; a high-speed version is available at 20,000 rpm.
- B-axis has a swivel range of ±110° and a Direct Drive with positioning accuracy < 1 µm.
- Y-stroke of ±100 mm is stated for external machining operations.
- Machining compartment accepts a circular diameter up to 500 mm; 400 mm long workpieces can be bored or turned horizontally; 470 mm outer diameter with the B-axis vertical and a 70 mm tool.
- Linear scales are fitted in the travelling column axes X1/Y1/Z1 and in the X2 axis of the turret, optionally in Y2/Z2 (turret) and Z3 (counter spindle).
- Main and counter spindles use water-cooled integrated spindle motors; the turret drive, the X/Y/Z motors and the lower turret are cooled.
- Guideways are size 45 and ball screws are Ø 40 mm.
- Control alternatives are listed only as SIEMENS; no specific control model is given in the document.

## Sources

1. [CTX beta 1250 TC 4A - Turn & Mill Machines - DMG MORI](https://en.dmgmori.com/products/machines/turning/turn-mill/ctx-tc/ctx-beta-1250-tc-4a) (accessed 2026-10-25)

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