DMG Mori DMU 125 monoBLOCK

$700,000 - $1,000,000 Updated 2026-03-13

Key Specifications

X Travel

1,335 mm (52.6 in)

Y Travel

1,250 mm (49.2 in)

Z Travel

900 mm (35.4 in)

Max Spindle

15,000 RPM (up to 30,000 RPM optional)

Spindle Taper

SK40 / HSK-A63 (SK50 / HSK-A100 optional)

Tool Capacity

Up to 180 pockets

Overview

The DMG Mori DMU 125 monoBLOCK is the flagship of the monoBLOCK series, delivering the largest work envelope in the lineup at 1,335 x 1,250 x 900 mm (52.6 x 49.2 x 35.4 in). This is a big machine built for big parts — aerospace structural components, large mold bases, energy sector housings, and defense applications that demand full 5-axis simultaneous capability with extreme rigidity.

The table handles workpieces up to 1,400 mm (55.1 in) in diameter and 790 mm (31.1 in) tall, with a 2,600 kg (5,732 lb) table load capacity. That is the highest table load in the monoBLOCK range and puts this machine in competition with large-format gantry machines for certain applications.

speedMASTER spindles scale from 15,000 RPM standard up to 30,000 RPM for high-speed finishing. The heavy-duty option delivers 430 Nm of torque through an SK50/HSK-A100 taper. The FD (mill-turn) option provides up to 5,400 Nm of table torque for complete machining of large rotational parts.

The tool magazine expands to 180 pockets. Positioning accuracy is 5 µm as standard. The one-piece monoBLOCK casting provides the rigid foundation needed for accurate heavy-part machining, and VCS Complete volumetric compensation is available.

At this size, the DMU 125 monoBLOCK competes with the Hermle C 62, DMG Mori DMC series portal machines, and large horizontal machining centers. It offers the advantage of full 5-axis trunnion-table kinematics in a work envelope that usually requires a gantry or bridge-type machine. For shops that need large-part 5-axis capability without the footprint and cost of a full gantry machine, the DMU 125 is the answer. Specs sourced from DMG Mori published data.

Full Specifications

Parameter	Value
X-Axis Travel	1,335 mm (52.6 in)
Y-Axis Travel	1,250 mm (49.2 in)
Z-Axis Travel	900 mm (35.4 in)
B Axis Swivel	-35° to +110°
C Axis Rotation	360° continuous
Max Spindle Speed	15,000 RPM (up to 30,000 RPM optional)
Spindle Taper	SK40 / HSK-A63 (SK50 / HSK-A100 optional)
Spindle Torque	Up to 430 Nm
Max Workpiece Diameter	1,400 mm (55.1 in)
Max Workpiece Height	790 mm (31.1 in)
Table Load Capacity	2,600 kg (5,732 lb)
Tool Capacity	Up to 180 pockets
Positioning Accuracy	5 µm standard
Fd Table Torque	Up to 5,400 Nm (FD option)
CNC Control	Siemens Sinumerik ONE / Heidenhain TNC7 (CELOS X)
1335 Mm	52.6 in.
1250 Mm	49.2 in.
900 Mm	35.4 in.
1400 Mm	55.1 in.
790 Mm	31.1 in.
2600 Kg	5732 lbs.
Customer Benefits	User Interface
Customer Benefitsflexible Application Possibilitiesin Process Measurement	Left : Semi-automatic Measurement solution. / Right : Automatic measurement solution.

Specifications sourced from us.dmgmori.com — verified 2026-03-28

Strengths & Limitations

Strengths

2,600 kg table load capacity is the highest in the monoBLOCK range for the heaviest workpieces
1,335 x 1,250 x 900 mm travel provides work envelope typically associated with gantry machines
FD mill-turn option with up to 5,400 Nm table torque enables complete machining of large parts
Trunnion-table 5-axis kinematics in a work envelope that usually requires a bridge or gantry machine
Spindle range from 15K to 30K RPM with up to 430 Nm covers any material and application
One-piece monoBLOCK casting maintains rigidity and accuracy at this extreme scale
VCS Complete available for volumetric accuracy improvement across the large work envelope

Limitations

Starting at $700K and commonly configured above $850K, this is a major capital commitment
Machine footprint and weight require substantial floor preparation and overhead crane access
At this price point, shops should also evaluate gantry-type machines that may offer larger envelopes
DMG Mori service at this machine tier requires specialized technicians; availability varies by region
Lead time on new orders can be 12-18 months depending on configuration

Best For

Aerospace OEMs machining large structural components, wing ribs, and landing gear assemblies Large mold shops working with heavy bases and oversized core/cavity inserts Energy sector manufacturers cutting large turbine casings, pump bodies, and valve assemblies Defense manufacturers producing large precision components for military platforms Shops needing 5-axis trunnion-table capability for parts too large for standard universal machines

Frequently Asked Questions

01 What does a DMG Mori DMU 125 monoBLOCK cost?

New DMU 125 monoBLOCK machines price between $700,000 and $1,000,000 depending on spindle, control, FD option, and tool magazine configuration. This is the flagship monoBLOCK and pricing reflects the extreme work envelope and capability.

02 Is the DMU 125 better than a gantry machine for large parts?

It depends on the application. The DMU 125 offers trunnion-table 5-axis kinematics which are better for parts that benefit from workpiece rotation. Gantry machines offer larger envelopes and better chip evacuation for certain geometries. The DMU 125 is ideal when you need full 5-axis simultaneous contouring with a rotating table.

03 What is the FD option on the DMU 125?

The FD option adds a direct-drive rotary table with up to 5,400 Nm of torque, enabling turning operations on the 5-axis machine. This allows complete machining of large rotational parts like turbine casings without moving to a separate lathe.

04 How does the table load compare to competitors?

At 2,600 kg, the DMU 125 monoBLOCK has one of the highest table loads in the trunnion-table 5-axis category. The Hermle C 62 handles 2,000 kg, while larger DMG Mori portal machines handle more. For trunnion-table kinematics, 2,600 kg is near the top of the market.

05 What floor requirements does the DMU 125 need?

The DMU 125 requires a reinforced concrete foundation rated for approximately 20,000-25,000 kg total load. DMG Mori provides detailed foundation drawings. Overhead crane with sufficient capacity for both machine installation and workpiece loading is essential.