Machine Comparison
DMG Mori CMX 50 U vs DMG Mori ULTRASONIC 85
DMG Mori vs DMG Mori · 5-Axis Machining Centers
Summary
The DMG Mori CMX 50 U and DMG Mori ULTRASONIC 85 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 ULTRASONIC 85 leads in max spindle speed (Up to 30,000 RPM vs 12,000 RPM (15,000 RPM optional)). The DMG Mori ULTRASONIC 85 leads in x travel (935 mm (36.8 in) vs 500 mm (19.7 in)). The DMG Mori ULTRASONIC 85 leads in tool capacity (Up to 180 tools vs 30 tools standard (60 optional)). The DMG Mori ULTRASONIC 85 shows specification advantages in 8 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 ULTRASONIC 85 |
|---|---|---|
| X-Axis Travel | 500 mm (19.7 in) | 935 mm (36.8 in) ▲ |
| Y-Axis Travel | 450 mm (17.7 in) | 850 mm (33.5 in) ▲ |
| Z-Axis Travel | 400 mm (15.7 in) | 650 mm (25.6 in) ▲ |
| Max Spindle Speed | 12,000 RPM (15,000 RPM optional) | Up to 30,000 RPM ▲ |
| Tool Capacity | 30 tools standard (60 optional) | Up to 180 tools ▲ |
| Control | CELOS with Fanuc 31i-B5 or Siemens 840D sl | SIEMENS with CELOS and ULTRASONIC technology cycles |
| Spindle Taper | CAT 40 / BBT 40 | HSK-A63 with ultrasonic actuator |
| Max Table Load | 200 kg (441 lb) | 1,500 kg (3,307 lb) ▲ |
| Max Workpiece Diameter | 500 mm (19.7 in) | 1,040 mm (40.9 in) ▲ |
| Max Workpiece Height | 350 mm (13.8 in) | 590 mm (23.2 in) ▲ |
| Price Range | $175,000 - $275,000 ▲ | $650,000 - $1,050,000 |
Advantages
DMG Mori CMX 50 U
- More competitive pricing at $175,000 - $275,000 compared to $650,000 - $1,050,000
- 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 ULTRASONIC 85
- Greater x travel of 935 mm (36.8 in) accommodates larger workpieces
- Greater y travel of 850 mm (33.5 in) accommodates larger workpieces
- Greater z travel of 650 mm (25.6 in) accommodates larger workpieces
- Higher maximum spindle speed of Up to 30,000 RPM enables faster cutting on aluminum and non-ferrous materials
- Larger tool magazine with Up to 180 tools capacity reduces manual tool changes on complex parts
Verdict
The DMG Mori ULTRASONIC 85 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.