DMG Mori DMU 75 monoBLOCK
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The DMG Mori DMU 75 monoBLOCK 2nd Generation is the workhorse of DMG Mori universal 5-axis lineup, sitting in the sweet spot between the compact DMU 50 and the larger monoBLOCK models. With 750 x 650 x 560 mm (29.5 x 25.6 x 22.0 in) of travel, it handles a wide range of mid-size components that the DMU 50 simply cannot reach.
The 2nd Generation brings meaningful improvements. Positioning accuracy drops to 4 microns as standard, 45 mm roller guideways run in all three axes, and large-diameter ball screws (40/50/40 mm in X/Y/Z) with direct drives in X and Y deliver responsive, rigid axis motion. The one-piece monoBLOCK casting is the signature feature — a single massive casting forms the machine base, eliminating bolted joints that compromise rigidity in assembled-frame designs.
The swivel rotary table handles workpieces up to 840 mm (33.1 in) in diameter and 500 mm (19.7 in) tall, with a table load capacity of 600 kg (1,323 lb). That is serious capacity for a machine in this class. The B-axis swivel range covers -35 to +110 degrees, and the C-axis rotates 360 degrees continuous.
speedMASTER spindles are standard, starting at 15,000 RPM with 21 kW and 111 Nm through an SK40/HSK-A63 taper. Options include the 20,000 RPM variant with 35 kW and 130 Nm, and the heavy-cutting 15,000 RPM option with 46 kW and 200 Nm for shops pushing into steel, titanium, and Inconel. All speedMASTER spindles carry a 36-month warranty without hour limits.
Control options include Siemens Sinumerik ONE and Heidenhain TNC7, both running under CELOS X on a 24-inch multi-touch ERGOline X panel. The tool magazine starts at 30 pockets and expands to 60 or 120. VCS Complete (Volumetric Compensation System) is available to improve volumetric accuracy by 30 percent.
The DMU 75 monoBLOCK competes with the Hermle C 32, Matsuura MAM72-35V, and Okuma MU-5000V. It delivers rigidity and accuracy that shops need for aerospace, medical, and mold work at a competitive price point. Specs sourced from DMG Mori published data.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 750 mm (29.5 in) |
| Y-Axis Travel | 650 mm (25.6 in) |
| Z-Axis Travel | 560 mm (22.0 in) |
| B Axis Swivel | -35° to +110° |
| C Axis Rotation | 360° continuous |
| Max Spindle Speed | 15,000 RPM (20,000 RPM optional) |
| Spindle Taper | SK40 / HSK-A63 |
| Spindle Motor Power | 21 kW (28 hp); 46 kW (62 hp) optional |
| Spindle Torque | 111 Nm (200 Nm optional) |
| Max Workpiece Diameter | 840 mm (33.1 in) |
| Max Workpiece Height | 500 mm (19.7 in) |
| Table Load Capacity | 600 kg (1,323 lb) |
| Tool Capacity | 30 (expandable to 60/120) |
| Positioning Accuracy | 4 µm standard |
| Ball Screws | Ø 40/50/40 mm (X/Y/Z), direct driven in X and Y |
| Guideways | 45 mm roller guideways in all axes |
| CNC Control | Siemens Sinumerik ONE / Heidenhain TNC7 (CELOS X) |
| 750 Mm | 29.5 in. |
| 650 Mm | 25.6 in. |
| 560 Mm | 22 in. |
| 840 Mm | 33.1 in. |
| 500 Mm | 19.7 in. |
| 600 Kg | 1322.8 lbs. |
| Customer Benefits | MPC Graph: aktuelle und angelernte Prozesswerte. / MPC Diagnostics: Lagerzustand, Anzahl von Stoß und Crash. |
Specifications sourced from us.dmgmori.com — verified 2026-03-28
Strengths & Limitations
Strengths
- One-piece monoBLOCK casting eliminates bolted joints for maximum rigidity and long-term geometric stability
- 600 kg table load capacity handles substantial workpieces that smaller 5-axis machines cannot accommodate
- 4 µm positioning accuracy as standard with optional VCS Complete boosting volumetric accuracy by 30 percent
- speedMASTER spindle range from 15K to 20K RPM with up to 46 kW and 200 Nm covers aluminum to Inconel
- 45 mm roller guideways and large-diameter direct-driven ball screws deliver responsive rigid axis motion
- Choice of Siemens Sinumerik ONE or Heidenhain TNC7 control matches existing shop infrastructure
- 36-month spindle warranty without hour limits reduces total cost of ownership risk
Limitations
- Starting at $350K and commonly configured at $450K+, significant capital investment
- DMG Mori service contracts and spare parts are premium-priced with quality varying by region
- Machine weight and footprint require adequate floor preparation and potentially crane access
- 30-tool standard magazine is tight for complex multi-operation parts; most shops need the 60 or 120 upgrade
Best For
Frequently Asked Questions
01
New DMU 75 monoBLOCK 2nd Gen machines price between $350,000 and $500,000 depending on spindle, control, and tool magazine. Used first-generation units from 2015-2019 sell in the $180,000-$280,000 range.
02
The 2nd Generation brought 4 µm positioning accuracy as standard, larger 45 mm roller guideways in all axes, direct-driven ball screws in X and Y, and the new CELOS X interface with 24-inch ERGOline X touchscreen.
03
The Hermle C 32 has a reputation for exceptional surface finish and German build quality. The DMU 75 monoBLOCK counters with higher table load (600 kg vs 450 kg), more spindle options, and typically a lower configured price.
04
Match your existing shop platform. Siemens Sinumerik ONE has broader CAM post support in North America. Heidenhain TNC7 is preferred in European aerospace for its conversational programming and advanced contour cycles.
05
VCS Complete (Volumetric Compensation System) maps and compensates geometric errors across the entire 3D work envelope, improving volumetric accuracy by up to 30 percent.
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