Machine Comparison
Hermle C 42 U vs Hermle C 42
Hermle vs Hermle · 5-Axis Machining Centers
Summary
The Hermle C 42 U and Hermle C 42 are both from Hermle's 5-axis machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the Hermle ecosystem. 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 | Hermle C 42 U | Hermle C 42 |
|---|---|---|
| Control | Heidenhain TNC 640 or Siemens 840D sl | Heidenhain TNC 640 or Siemens SINUMERIK 840D sl |
| C Axis | 360 degrees continuous | 360° continuous |
| Spindle Taper | HSK-A63 | HSK-A63 |
| Machine Weight | 14,000 kg (30,865 lb) ▲ | 13,500 kg (29,762 lb) |
| Price Range | $550,000 - $800,000 (new); $350,000 - $550,000 (used) | $450,000 - $650,000 ▲ |
Advantages
Hermle C 42 U
- Superior machine weight at 14,000 kg (30,865 lb) vs 13,500 kg (29,762 lb)
- Backed by Hermle's dealer and service network for parts and support
- Aerospace structural components and impellers
Hermle C 42
- More competitive pricing at $450,000 - $650,000 compared to $550,000 - $800,000 (new); $350,000 - $550,000 (used)
- Backed by Hermle's dealer and service network for parts and support
- Aerospace manufacturers machining complex aluminum structural components, titanium brackets, and engine parts requiring tight tolerances and excellent surface finish
Verdict
This is a close matchup. The Hermle C 42 U and Hermle C 42 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.