Machine Comparison
DMG Mori CMX 50 U vs GROB G150
DMG Mori vs GROB · 5-Axis Machining Centers
Summary
The DMG Mori CMX 50 U from DMG Mori and GROB G150 from GROB are direct competitors in the 5-axis machining centers category. The GROB G150 leads in max spindle speed (18,000 rpm (30,000 rpm HSK-E40 optional) vs 12,000 RPM (15,000 RPM optional)). The DMG Mori CMX 50 U leads in x travel (500 mm (19.7 in) vs 450 mm (17.7 in)). The GROB G150 leads in rapid traverse (60 m/min (2,362 ipm) vs 30 m/min (1,181 ipm)). These machines are closely matched across most specifications, making the decision more about specific feature priorities, dealer support, and your existing shop ecosystem than raw spec advantages. Both machines are proven performers in production environments and represent solid investments for shops in the market for a 5-axis machining center.
Specifications Comparison
| Specification | DMG Mori CMX 50 U | GROB G150 |
|---|---|---|
| X-Axis Travel | 500 mm (19.7 in) ▲ | 450 mm (17.7 in) |
| Y-Axis Travel | 450 mm (17.7 in) ▲ | 400 mm (15.7 in) |
| Z-Axis Travel | 400 mm (15.7 in) | 400 mm (15.7 in) |
| Max Spindle Speed | 12,000 RPM (15,000 RPM optional) | 18,000 rpm (30,000 rpm HSK-E40 optional) ▲ |
| Spindle Power | 22 kW (30 hp) ▲ | 16 kW (21 hp) continuous |
| Tool Capacity | 30 tools standard (60 optional) | 48 (HSK-A63) ▲ |
| Rapid Traverse | 30 m/min (1,181 ipm) | 60 m/min (2,362 ipm) ▲ |
| Control | CELOS with Fanuc 31i-B5 or Siemens 840D sl | Siemens Sinumerik 840D sl (Heidenhain TNC 640 optional) |
| Spindle Taper | CAT 40 / BBT 40 | HSK-A63 (HSK-E40 optional) |
| Max Workpiece Diameter | 500 mm (19.7 in) ▲ | Ø 280 mm (11 in) |
| Machine Weight | 6,600 kg (14,551 lb) | 6,500 kg (14,330 lb) |
| Price Range | $175,000 - $275,000 ▲ | $350,000 - $500,000 |
Advantages
DMG Mori CMX 50 U
- Greater x travel of 500 mm (19.7 in) accommodates larger workpieces
- Greater y travel of 450 mm (17.7 in) accommodates larger workpieces
- More spindle power at 22 kW (30 hp) for aggressive material removal in harder materials
- Superior max workpiece diameter at 500 mm (19.7 in) vs Ø 280 mm (11 in)
- More competitive pricing at $175,000 - $275,000 compared to $350,000 - $500,000
GROB G150
- Higher maximum spindle speed of 18,000 rpm (30,000 rpm HSK-E40 optional) enables faster cutting on aluminum and non-ferrous materials
- Larger tool magazine with 48 (HSK-A63) capacity reduces manual tool changes on complex parts
- Faster rapid traverse at 60 m/min (2,362 ipm) reduces non-cutting time between operations
Verdict
This is a close matchup. The DMG Mori CMX 50 U and GROB G150 trade advantages across different specifications, making neither a clear winner on paper alone. Your decision should come down to practical factors: which dealer is closer, which control system your operators already know, what tooling ecosystem you're invested in, and which machine's specific strengths match your highest-volume work. Get quotes on both, run test cuts with your actual parts if possible, and factor in long-term service and support costs.