Machine Comparison
Hermle C 12 vs Hermle C 250
Hermle vs Hermle · 5-Axis Machining Centers
Summary
The Hermle C 12 and Hermle C 250 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. The Hermle C 12 leads in max spindle speed (18,000 RPM standard (12,000 to 42,000 RPM options) vs 15,000 RPM (optional 18,000 RPM)). The Hermle C 250 leads in x travel (600 mm (23.6 in) vs 350 mm (13.8 in)). The Hermle C 12 leads in tool capacity (36 tools (HSK-A63) vs 30 (50, 88 optional)). The Hermle C 250 shows specification advantages in 7 categories, though the Hermle C 12 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 | Hermle C 12 | Hermle C 250 |
|---|---|---|
| X-Axis Travel | 350 mm (13.8 in) | 600 mm (23.6 in) ▲ |
| Y-Axis Travel | 440 mm (17.3 in) | 550 mm (21.7 in) ▲ |
| Z-Axis Travel | 330 mm (13.0 in) | 450 mm (17.7 in) ▲ |
| Max Spindle Speed | 18,000 RPM standard (12,000 to 42,000 RPM options) ▲ | 15,000 RPM (optional 18,000 RPM) |
| Tool Capacity | 36 tools (HSK-A63) ▲ | 30 (50, 88 optional) |
| Control | Heidenhain TNC 640 or Siemens SINUMERIK 840D sl | Heidenhain TNC 640 (Siemens 840D SL optional) |
| Spindle Taper | HSK-A63 | HSK-A63 |
| Table Diameter | 320 mm (12.6 in) | 320 mm (12.6 in) (optional 450 mm / 17.7 in) |
| Max Workpiece Diameter | 320 mm (12.6 in) | 450 mm (17.7 in) ▲ |
| Max Tool Diameter | 80 mm (3.1 in) | 80 mm (3.1 in) |
| Max Tool Length | 200 mm (7.9 in) | 300 mm (11.8 in) ▲ |
| Max Tool Weight | 6 kg (13.2 lb) | 8 kg (17.6 lb) ▲ |
| Price Range | $300,000 - $425,000 | $270,000 - $400,000 ▲ |
Advantages
Hermle C 12
- Higher maximum spindle speed of 18,000 RPM standard (12,000 to 42,000 RPM options) enables faster cutting on aluminum and non-ferrous materials
- Larger tool magazine with 36 tools (HSK-A63) capacity reduces manual tool changes on complex parts
- Backed by Hermle's dealer and service network for parts and support
- Medical device manufacturers producing small implants, bone screws, and surgical instrument components from titanium and cobalt-chrome requiring exceptional surface finish
Hermle C 250
- Greater x travel of 600 mm (23.6 in) accommodates larger workpieces
- Greater y travel of 550 mm (21.7 in) accommodates larger workpieces
- Greater z travel of 450 mm (17.7 in) accommodates larger workpieces
- Superior max workpiece diameter at 450 mm (17.7 in) vs 320 mm (12.6 in)
- Superior max tool length at 300 mm (11.8 in) vs 200 mm (7.9 in)
Verdict
The Hermle C 250 edges ahead on specifications in this comparison, particularly in X Travel and Y Travel. However, the Hermle C 12 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.