Machine Comparison
DMG Mori CMX 50 U vs DMG Mori CMX 70 U
DMG Mori vs DMG Mori · 5-Axis Machining Centers
Summary
The DMG Mori CMX 50 U and DMG Mori CMX 70 U are both from DMG Mori's 5-axis machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the DMG Mori ecosystem. The DMG Mori CMX 70 U leads in x travel (700 mm (27.6 in) vs 500 mm (19.7 in)). The DMG Mori CMX 70 U shows specification advantages in 4 categories, though the DMG Mori CMX 50 U may still be the better choice depending on your shop's specific needs and the type of work you run. 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 | DMG Mori CMX 70 U |
|---|---|---|
| X-Axis Travel | 500 mm (19.7 in) | 700 mm (27.6 in) ▲ |
| Y-Axis Travel | 450 mm (17.7 in) | 560 mm (22.0 in) ▲ |
| Z-Axis Travel | 400 mm (15.7 in) | 510 mm (20.1 in) ▲ |
| Max Spindle Speed | 12,000 RPM (15,000 RPM optional) | 12,000 RPM (15,000 RPM optional) |
| Spindle Power | 22 kW (30 hp) | 22 kW (30 hp) |
| Spindle Torque | 86 Nm (63 ft-lb) | 86 Nm (63 ft-lb) |
| Tool Capacity | 30 tools standard (60 optional) | 30 tools standard (60, 120 optional) |
| Rapid Traverse | 30 m/min (1,181 ipm) | 30 m/min (1,181 ipm) |
| Control | CELOS with Fanuc 31i-B5 or Siemens 840D sl | CELOS with Fanuc 31i-B5 or Siemens 840D sl |
| A Axis Swivel | -35 to +110 deg | -35 to +110 deg |
| C Axis Rotation | 360 deg continuous | 360 deg continuous |
| Spindle Taper | CAT 40 / BBT 40 | CAT 40 / BBT 40 |
| Tool Change Time | 3.0 sec tool-to-tool | 3.0 sec tool-to-tool |
| Table Diameter | 500 mm (19.7 in) | 630 mm (24.8 in) ▲ |
| Price Range | $175,000 - $275,000 ▲ | $225,000 - $325,000 |
Advantages
DMG Mori CMX 50 U
- More competitive pricing at $175,000 - $275,000 compared to $225,000 - $325,000
- Backed by DMG Mori's dealer and service network for parts and support
- Job shops adding their first 5-axis capability without committing to premium pricing
DMG Mori CMX 70 U
- Greater x travel of 700 mm (27.6 in) accommodates larger workpieces
- Greater y travel of 560 mm (22.0 in) accommodates larger workpieces
- Greater z travel of 510 mm (20.1 in) accommodates larger workpieces
- Superior table diameter at 630 mm (24.8 in) vs 500 mm (19.7 in)
Verdict
The DMG Mori CMX 70 U edges ahead on specifications in this comparison, particularly in X Travel and Y Travel. However, the DMG Mori CMX 50 U remains competitive and may be the better choice depending on price, dealer support in your area, or specific workholding and tooling considerations. Both are capable machines — the best decision comes from running your actual parts and evaluating total cost of ownership including tooling, training, and service.