Machine Comparison
DMG Mori CMX 50 U vs Hermle C 12
DMG Mori vs Hermle · 5-Axis Machining Centers
Summary
The DMG Mori CMX 50 U and the Hermle C 12 are both compact 5-axis machining centers, and the Hermle is the smaller of the two: 350 x 440 x 330 mm of travel against 500 x 450 x 400 mm, and a 100 kg (220 lb) table rating against 200 kg (440.9 lb). Both rapid at 30 m/min (1,181 ipm) as standard, though the C 12 offers 50 m/min (1,969 ipm) as an option.
The C 12 is built around spindle speed: 18,000 RPM standard on HSK-A63, with options from 12,000 to 42,000 RPM, against 12,000 RPM (15,000 optional) on the CMX 50 U's CAT 40 / BBT 40 spindle. It also holds 36 tools against 30. The CMX 50 U has the larger envelope and table rating, and offers Fanuc 31i-B5 where the Hermle offers Heidenhain TNC 640.
Specifications Comparison
| Specification | DMG Mori CMX 50 U | Hermle C 12 |
|---|---|---|
| X-Axis Travel | 500 mm (19.7 in) ▲ | 350 mm (13.8 in) |
| Y-Axis Travel | 450 mm (17.7 in) ▲ | 440 mm (17.3 in) |
| Z-Axis Travel | 400 mm (15.7 in) ▲ | 330 mm (13.0 in) |
| Max Table / Workpiece Load | 200 kg (440.9 lb) ▲ | 100 kg (220 lb) |
| Max Spindle Speed | 12,000 RPM (15,000 RPM optional) | 18,000 RPM standard (12,000 to 42,000 RPM options) |
| Spindle Taper / Nose | CAT 40 / BBT 40 | HSK-A63 |
| Tool Capacity | 30 tools standard (60 optional) | 36 tools (HSK-A63) ▲ |
| Tool Change (tool-to-tool) | 3.0 sec tool-to-tool | 4.5 sec chip-to-chip |
| Rapid Traverse | 30 m/min (1,181 ipm) | 30 m/min (1,181 ipm) standard; 50 m/min (1,969 ipm) optional |
| Control | CELOS with Fanuc 31i-B5 or Siemens 840D sl | Heidenhain TNC 640 or Siemens SINUMERIK 840D sl |
Advantages
DMG Mori CMX 50 U
- 500 mm (19.7 in) of X travel against 350 mm (13.8 in), and 400 mm (15.7 in) of Z against 330 mm (13.0 in)
- 200 kg (440.9 lb) table load against 100 kg (220 lb)
- CAT 40 / BBT 40 taper with a Fanuc 31i-B5 or Siemens 840D sl control
Hermle C 12
- 18,000 RPM spindle as standard, with options up to 42,000 RPM, against 12,000 RPM
- 36 tools against 30 standard
- 50 m/min (1,969 ipm) rapid option
- Heidenhain TNC 640 available as well as Siemens
Verdict
The Hermle C 12 suits small, high-precision parts such as implants, bone screws, electrodes, watch components and small turbine parts that weigh under 100 kg and benefit from 18,000 RPM or faster spindle options. The CMX 50 U suits job shops and prototype work with larger parts or fixtures that need 500 mm of X travel and a 200 kg table, and shops that prefer CAT 40 tooling or a Fanuc control.