DMG Mori CTX 350

Specs verified 2026-10-02 · dmgmori.com Updated 2026-10-02

Image: dmgmori.com, DMG Mori

Key Specifications

X Travel

250 mm (9.8 in)

Y Travel

100 mm (3.9 in)

Z Travel

550 mm (21.7 in)

Max Spindle

5,500 rpm (main spindle ISM65)

Spindle Power

13 / 14 kW (100/40% DC)

Max Workpiece ⌀

320 mm (12.6 in)

How much does the DMG Mori CTX 350 cost?

Price estimate

Uncertain

We do not have a price for the DMG Mori CTX 350 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Overview

The DMG MORI CTX 350 is a universal turning center for workpieces up to 320 mm (12.6 in) in diameter and 540 mm (21.3 in) long, with 65 mm (2.6 in) of bar capacity. X travel is 250 mm (9.8 in) and Z travel is 550 mm (21.7 in). The Y-axis has 100 mm (3.9 in) of travel, which DMG MORI describes as a stroke of ±50 mm about the spindle centreline.

The main spindle is an integrated motor spindle, the ISM65, on an A2-6 nose. Its hollow cylinder measures Ø 65 mm, which is where the bar capacity comes from. The drive rating is 13 / 14 kW at 100 / 40% duty cycle and the top speed is 5,500 rpm. For a machine that accepts 320 mm (12.6 in) blanks that is a light drive, so the CTX 350 is better matched to bar work and small chuck parts at high spindle speed than to heavy roughing at full diameter.

Machining the second side needs the counter spindle, which is an option. It is an ISM 50 integrated spindle motor, partially hollow at Ø 50 mm, rated 8/9 kW and 6,000 rpm: smaller and less powerful than the main spindle, so plan the heavier operations for the first clamping. The turrets are prepared for 50 bar coolant pressure, use air/oil lubrication and are rated for 100% duty cycle in milling. A DirectDrive turret drive with up to 12,000 rpm is optional.

Direct measuring systems in the X-axis and Y-axis are standard, the C-axis is controlled from a measuring system near the front bearings, and the integrated spindle motors are water-cooled. For unattended running DMG MORI offers integrated IMTR automation, a Robo2Go interface or an unloading device.

The CTX 350 4A has shorter travels, 185 mm (7.3 in) in X and 495 mm (19.5 in) in Z, on the same 100 mm (3.9 in) of Y. One size up, the CTX 450 has 310 mm (12.2 in) of X, 130 mm (5.1 in) of Y and 825 mm (32.5 in) of Z.

Full Specifications

Parameter	Value
X-Axis Travel	250 mm (9.8 in)
Y-Axis Travel	100 mm (3.9 in)
Z-Axis Travel	550 mm (21.7 in)
Max Workpiece Diameter	320 mm (12.6 in)
Max Workpiece Length	540 mm (21.3 in)
Max Bar Capacity	65 mm (2.6 in)
Max Spindle Speed	5,500 rpm (main spindle ISM65)
Spindle Motor Power	13 / 14 kW (100/40% DC)
Spindle Nose	A2-6
Driven Tool Speed	Up to 12,000 rpm (optional DirectDrive turret drive)
Spindle Bore	Ø 65 mm (hollow cylinder, ISM65)
Sub Spindle Speed	6,000 rpm (optional counter spindle ISM 50)
Sub Spindle Power	8/9 kW (100%-40%ED), optional counter spindle ISM 50
Coolant Pressure	Turrets ready for 50 bar coolant pressure

Specifications sourced from dmgmori.com — verified 2026-10-02

Strengths & Limitations

Strengths

Integrated ISM65 main spindle with 5,500 rpm and a Ø 65 mm hollow cylinder, matching the 65 mm (2.6 in) bar capacity
Y-axis with a ±50 mm stroke, 100 mm (3.9 in) in total, for off-centre drilling and milling
Direct measuring systems in the X-axis and Y-axis as standard
Turrets prepared for 50 bar coolant pressure and rated for 100% duty cycle in milling
Water-cooled integrated spindle motors and a C-axis measuring system near the front bearings
Offered with integrated IMTR automation, a Robo2Go interface or an unloading device

Limitations

Main spindle drive rating is 13 / 14 kW, a light drive for roughing blanks near the 320 mm (12.6 in) maximum diameter
The counter spindle is an option, and at 8/9 kW with a Ø 50 mm partial bore it is smaller than the main spindle
The 12,000 rpm DirectDrive turret drive is optional, and DMG MORI's Highlights give no speed or torque for the standard driven tools
Turning length ends at 540 mm (21.3 in); the CTX 450 has 825 mm (32.5 in) of Z travel for longer parts

Best For

Bar work up to 65 mm (2.6 in) at spindle speeds up to 5,500 rpm Chuck parts up to 320 mm (12.6 in) in diameter and 540 mm (21.3 in) long Turned parts with flats or cross holes inside the ±50 mm Y stroke Automated cells built on IMTR automation or a Robo2Go interface

Frequently Asked Questions

01 What main spindle does the CTX 350 have?

An integrated motor spindle, type ISM65, with an A2-6 spindle nose and a hollow cylinder of Ø 65 mm. DMG MORI gives the drive rating as 13 / 14 kW (100 / 40% duty cycle) and the speed as 5,500 rpm. The spindle motor is water-cooled, and a measuring system near the front bearings controls the C-axis.

02 Is a counter spindle standard on the CTX 350?

No. DMG MORI lists the counter spindle as an option for complete machining. It is an ISM 50 integrated spindle motor, partially hollow at Ø 50 mm, rated 8/9 kW and 6,000 rpm. Because it is smaller than the 13 / 14 kW main spindle, heavy cuts belong in the first clamping.

03 What size workpiece and bar does the CTX 350 take?

Up to 320 mm (12.6 in) in turning diameter and up to 540 mm (21.3 in) in turning length. Bar capacity is 65 mm (2.6 in), set by the Ø 65 mm hollow cylinder of the main spindle. Travels are 250 mm (9.8 in) in X, 100 mm (3.9 in) in Y and 550 mm (21.7 in) in Z.

04 How fast are the driven tools on the CTX 350?

DMG MORI states a speed only for the optional DirectDrive turret drive: up to 12,000 rpm. The turrets are described as ready for 50 bar coolant pressure, with air/oil lubrication and 100% duty cycle in milling. Ask for the speed and torque of the standard turret drive in the quotation, because the Highlights do not give them.

05 How does the CTX 350 compare with the CTX 450?

The CTX 450 is larger in every axis: 310 mm (12.2 in) of X, 130 mm (5.1 in) of Y and 825 mm (32.5 in) of Z, against 250 mm (9.8 in), 100 mm (3.9 in) and 550 mm (21.7 in) on the CTX 350. The CTX 450 also takes workpieces up to 480 mm (18.9 in) in diameter and bar up to 102 mm (4 in).