Machine Comparison
DMG Mori CMX 50 U vs Kern Evo
DMG Mori vs Kern Microtechnik · 5-Axis Machining Centers
Summary
The DMG Mori CMX 50 U and the Kern Evo are both compact 5-axis machining centers, but they are built around different tools. The DMG Mori CMX 50 U is a 40-taper machine with 500 x 450 x 400 mm of travel and a 22 kW (30 hp) spindle. The Kern Evo is a micro-milling machine with an HSK 25 spindle that runs to 50,000 rpm.
The DMG Mori CMX 50 U takes the larger and heavier part: 200 kg (440.9 lb) on the table against 50 kg, and more travel in every axis than the Kern Evo's 300 x 280 x 250 mm. The Kern Evo answers with spindle speed, 50,000 rpm against 12,000 RPM (15,000 RPM is an extra-cost option), and a magazine of 32, 63 or 95 tools against 30 tools standard, with 60 as an option.
Specifications Comparison
| Specification | DMG Mori CMX 50 U | Kern Evo |
|---|---|---|
| X-Axis Travel | 500 mm (19.7 in) ▲ | 300 mm |
| Y-Axis Travel | 450 mm (17.7 in) ▲ | 280 mm |
| Z-Axis Travel | 400 mm (15.7 in) ▲ | 250 mm |
| Max Table / Workpiece Load | 200 kg (440.9 lb) ▲ | 50 kg |
| Max Spindle Speed | 12,000 RPM (15,000 RPM optional) | 50,000 rpm ▲ |
| Spindle Power | 22 kW (30 hp) ▲ | 6.4KW |
| Spindle Taper / Nose | CAT 40 / BBT 40 | HSK 25 |
| Tool Capacity | 30 tools standard (60 optional) | 32, 63 or 95 |
| Control | CELOS with Fanuc 31i-B5 or Siemens 840D sl | Heidenhain iTNC 530 |
| Machine Weight | 6,600 kg (14,551 lb) | 3,100 kg |
Advantages
DMG Mori CMX 50 U
- 500 x 450 x 400 mm of travel against 300 x 280 x 250 mm
- 200 kg (440.9 lb) table load, four times the Kern Evo's 50 kg
- 22 kW (30 hp) spindle against 6.4 kW, on a CAT 40 / BBT 40 taper
Kern Evo
- 50,000 rpm spindle against 12,000 RPM standard (15,000 RPM optional)
- HSK 25 spindle nose for small tools
- Magazine of 32, 63 or 95 tools against 30 tools standard and 60 as an option
- Lighter machine at 3,100 kg against 6,600 kg (14,551 lb)
Verdict
Choose by tool size. The DMG Mori CMX 50 U suits five-sided machining of prismatic aluminum and light steel parts that need a 40-taper spindle, 22 kW (30 hp) and a 200 kg (440.9 lb) table load. The Kern Evo suits micro-milling with small tools, where 50,000 rpm matters more than power and the part fits within its 300 x 280 x 250 mm of travel and 50 kg load. General 5-axis work belongs on the DMG Mori CMX 50 U.