DMG Mori DMU 40
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The DMG Mori DMU 40 is a compact simultaneous 5-axis machining center from the DMU monoBlock family, designed for precision machining of small to medium-sized complex components. Built on a one-piece monoBlock casting, the DMU 40 delivers 400 x 400 x 375 mm (15.7 x 15.7 x 14.8 in) of X/Y/Z travel with A-axis swivel of -5 to +110 degrees and 360-degree continuous C-axis rotation.
The standard spindle runs at 15,000 RPM through an HSK-A63 taper, producing 22 kW (30 hp) and 87 Nm (64 ft-lb) of torque. High-speed spindle options up to 24,000 RPM are available for aluminum and composites work. Rapid traverse hits 42 m/min (1,654 ipm) on all linear axes.
The monoBlock one-piece casting provides exceptional rigidity for the machine size, delivering accuracy and surface finish quality that exceeds C-frame designs at similar specifications. Standard tool magazine holds 30 tools expandable to 60 or 120. Maximum table load is 250 kg (551 lb) on a 440 mm diameter rotary table. Running on CELOS with Fanuc or Siemens control.
Competitors include the Hermle C 22 U, Makino D500, and Matsuura MX-330 in the compact premium 5-axis segment. New DMU 40 machines price between $325,000 and $475,000. The monoBlock casting and high dynamic performance make the DMU 40 ideal for shops producing tight-tolerance aerospace fittings, medical components, and precision mold work. Specs sourced from DMG Mori published data.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 400 mm (15.7 in) |
| Y-Axis Travel | 400 mm (15.7 in) |
| Z-Axis Travel | 375 mm (14.8 in) |
| A Axis Swivel | -5 to +110 deg |
| C Axis Rotation | 360 deg continuous |
| Max Spindle Speed | 15,000 RPM (18,000; 24,000 RPM optional) |
| Spindle Taper | HSK-A63 |
| Spindle Motor Power | 22 kW (30 hp) |
| Spindle Torque | 87 Nm (64 ft-lb) |
| Tool Capacity | 30 tools standard (60, 120 optional) |
| Tool Change Time | 2.5 sec tool-to-tool |
| Table Diameter | 440 mm (17.3 in) |
| Max Table Load | 250 kg (551 lb) |
| Max Workpiece Diameter | 450 mm (17.7 in) |
| Max Workpiece Height | 300 mm (11.8 in) |
| Rapid Traverse Rate | 42 m/min (1,654 ipm) |
| Machine Weight | 7,200 kg (15,873 lb) |
| CNC Control | CELOS with Fanuc 31i-B5 or Siemens 840D sl |
| 550 Mm | 21.7 in. |
| 450 Mm | 17.7 in. |
| 420 Mm | 16.5 in. |
| 505 Mm | 19.9 in. |
| 570 Mm | 22.4 in. |
| 300 Kg | 661.4 lbs. |
| Customer Benefitsflexible Application Possibilitiesin Process Measurement | Left : Semi-automatic Measurement solution. / Right : Automatic measurement solution. |
| 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
- monoBlock one-piece casting delivers exceptional rigidity and accuracy for the machine size class
- HSK-A63 spindle at 15,000 RPM with options up to 24,000 RPM covers steel through aluminum applications
- 42 m/min rapids provide fast repositioning for complex 5-axis contouring and multi-feature parts
- Premium build quality with thermal management delivers consistent accuracy during extended production runs
- CELOS with choice of Fanuc or Siemens control matches existing shop standardization
- Compact footprint of the smallest monoBlock fits into shops with limited floor space
Limitations
- 400 x 400 x 375 mm travel is compact and limits workpiece size for shops with larger parts
- 250 kg table load restricts fixture weight compared to larger DMU 50 and DMU 65 models
- 87 Nm spindle torque limits heavy roughing in steel and titanium compared to higher-torque options
- 30-tool standard magazine requires expansion for complex multi-operation work
- $325,000+ pricing is a significant step up from entry-level 5-axis machines like the CMX U series
Best For
Frequently Asked Questions
01
New DMU 40 machines price between $325,000 and $475,000 depending on spindle selection, ATC, and control. Used units from 2018-2023 trade between $175,000 and $300,000.
02
The DMU 40 offers superior rigidity from the monoBlock casting, faster 42 m/min rapids (vs 30), HSK-A63 spindle (vs CAT 40), and better dynamic performance. The CMX 50 U offers more X-travel (500 vs 400 mm) and significantly lower pricing ($175K-$275K vs $325K-$475K).
03
Both are premium compact 5-axis machines. The Hermle is known for exceptional accuracy and gantry-style rigidity. The DMG Mori offers CELOS ecosystem, broader service network, and more competitive pricing in most markets.
04
The standard 15,000 RPM handles most materials well. Choose 18,000 RPM for mixed materials with more aluminum. Choose 24,000 RPM for dedicated aluminum and composites work where high surface speed is critical.
05
Yes. The one-piece casting eliminates bolted joints between major structural components, providing better long-term rigidity and accuracy than assembled C-frame designs used in entry-level 5-axis machines.
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