Machine Comparison
Kern Micro HD vs Kern Micro Vario
Kern Microtechnik vs Kern Microtechnik · 5-Axis Machining Centers
Summary
The Kern Micro HD and Kern Micro Vario are both from Kern Microtechnik's 5-axis machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the Kern Microtechnik ecosystem. The Kern Micro Vario shows specification advantages in 3 categories, though the Kern Micro HD 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 | Kern Micro HD | Kern Micro Vario |
|---|---|---|
| X-Axis Travel | 500 mm (19.7 in) | 500 mm (19.7 in) |
| Y-Axis Travel | 500 mm (19.7 in) | 500 mm (19.7 in) |
| Z-Axis Travel | 300 mm (11.8 in) | 300 mm (11.8 in) |
| Spindle Power | 8.5 kW (11.4 hp) | Up to 8.5 kW (11.4 hp) |
| Tool Capacity | Up to 209 tools | Up to 209 tools |
| Accuracy | < 1 um | < 1 um |
| Control | Heidenhain TNC 640 | Heidenhain TNC 640 |
| Spindle Speed | 500 - 50,000 RPM (HSK-E40) | Up to 50,000 RPM (configurable) ▲ |
| Tool Interface | HSK-E40 | HSK-E40 or HSK-E50 (configurable) |
| Max Workpiece Diameter | 300 mm (11.8 in) | 300 mm (11.8 in) |
| Max Workpiece Weight | 80 kg (176 lb) | 80 kg (176 lb) |
| Surface Finish | Ra 0.05 um achievable | Ra < 0.1 um standard; Ra 0.05 um achievable ▲ |
| Guideway Type | Hydrostatic on all linear axes | Hydrostatic on all linear axes |
| Rotary Axes | A-axis / C-axis trunnion, direct-drive torque motors | A-axis / C-axis trunnion, direct-drive torque motors |
| Price Range | $800,000 - $1,200,000+ | $700,000 - $1,100,000 ▲ |
Advantages
Kern Micro HD
- Backed by Kern Microtechnik's dealer and service network for parts and support
- Medical device manufacturers producing titanium and cobalt-chrome implants requiring single-digit micron tolerances
Kern Micro Vario
- Superior spindle speed at Up to 50,000 RPM (configurable) vs 500 - 50,000 RPM (HSK-E40)
- Superior surface finish at Ra < 0.1 um standard; Ra 0.05 um achievable vs Ra 0.05 um achievable
- More competitive pricing at $700,000 - $1,100,000 compared to $800,000 - $1,200,000+
Verdict
The Kern Micro Vario edges ahead on specifications in this comparison, particularly in spindle speed and surface finish. However, the Kern Micro HD 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.