Machine Comparison
Kern Micro Vario vs Kern Pyramid Nano
Kern Microtechnik vs Kern Microtechnik · 5-Axis Machining Centers
Summary
The Kern Micro Vario and the Kern Pyramid Nano are both precision machining centers from Kern Microtechnik with the same published accuracy class. The headline difference is size: the Kern Pyramid Nano travels 500 x 500 x 400 mm against the Kern Micro Vario's 350 x 220 x 250 mm.
The Kern Pyramid Nano is stronger wherever the part is large or heavy. It carries 250 kg, a figure given for 3-axis use, against 50 kg on the Kern Micro Vario. Accuracy is shared, not an advantage for either: positioning is listed at < 1,5 µm and ≤ 1,5 µm, repeatability at < 1 µm and ≤ 1 µm. Both run the Heidenhain TNC 640 control. The Kern Micro Vario is the smaller machine for smaller parts.
Specifications Comparison
| Specification | Kern Micro Vario | Kern Pyramid Nano |
|---|---|---|
| X-Axis Travel | 350 mm | 500 mm ▲ |
| Y-Axis Travel | 220 mm | 500 mm ▲ |
| Z-Axis Travel | 250 mm | 400 mm ▲ |
| Max Table / Workpiece Load | 50 kg (110,23 lbs) | 250 kg (3-achsig) ▲ |
| Positioning Accuracy | < 1,5 µm (VDI/DGQ 3441, P) | ≤ 1,5 µm (VDI/DGQ 3441, P) |
| Repeatability | < 1 µm (VDI/DGQ 3441, Ps) | ≤ 1 µm (VDI/DGQ 3441, Ps) |
| Control | Heidenhain TNC 640 | Heidenhain TNC 640 |
| Machine Weight | 5.200 kg (11,464.04 lbs) | ca. 8.000 kg |
Advantages
Kern Micro Vario
- Smaller work envelope, 350 x 220 x 250 mm, for shops whose parts need no more
- Suits micro-machining and small round parts
Kern Pyramid Nano
- 500 mm of X travel against 350 mm
- 500 mm of Y and 400 mm of Z travel against 220 mm and 250 mm
- 250 kg workpiece load in 3-axis use against 50 kg
Verdict
Accuracy does not decide this pair: the positioning and repeatability figures are in the same class on both. Part size does. Choose the Kern Pyramid Nano for precision plates, mold inserts and heavy fixtures that need 500 mm of X and Y travel or up to 250 kg in 3-axis use. Choose the Kern Micro Vario for micro-machining of small parts that fit within 350 x 220 x 250 mm and 50 kg.