Kern Pyramid Nano
Key Specifications
X Travel
Y Travel
Z Travel
Accuracy
Repeatability
max clamping surface
How much does the Kern Pyramid Nano cost?
Estimated price range
Our best estimate for a 5-axis machining center in this class — not a quote from Kern Microtechnik. Configuration moves it a long way.
Overview
The Kern Pyramid Nano is the large machine of this group: 500 mm of X, 500 mm of Y and 400 mm of Z over a 600 x 600 mm clamping surface, sold either as a 3-axis machine or with a rotary-swivel unit. The figures come from the maker's brochure, hosted by an authorised distributor. The Micro Vario and Micro HD stop at 350 mm of X and 220 mm of Y.
Load capacity depends heavily on the configuration, and this is the row to read first. The maximum workpiece weight is 250 kg, marked "3-achsig", which is the 3-axis figure. With the rotary and swivel axes it falls to 20 kg/44 lbs in the version called Pyramid Nano and 50 kg/110 lbs in the version called Pyton. The torques follow the same split: 24 Nm rotary and 50 Nm swivel on the Pyramid Nano version, 55 Nm and 120 Nm on the Pyton version. The swivel axis covers +20° up to -110° and the rotary axis is 360° infinite.
Positioning accuracy is ≤ 1,5 µm (VDI/DGQ 3441, P), repeatability ≤ 1 µm (VDI/DGQ 3441, Ps) and circular deviation ≤ 2,5 µm (ISO 230-4) in GYX and GXY. Feed rate is 25 m/min with acceleration up to 10 m/s². This is a machine specified for accuracy over a big envelope, not for speed.
Three spindles are offered. HSK 25 comes with roller bearings at 50.000 min-1 and 6,4 kW (S1) or with air bearings at 80.000 min-1 and 5,5 kW (S1); HSK 40 has roller bearings, 42.000 min-1 and 11 kW (S1). Magazines are 32-, 64- and 96 for HSK 25, and 25-, 50- and 75 pockets for HSK 40. An integrated workpiece changing system with 20 positions, or an external system, handles part loading. Plan the site for ca. 8.000 kg and a minimum of 2,76 x 2,90 x 3,15 m (W/D/H).
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 500 mm |
| Y-Axis Travel | 500 mm |
| Z-Axis Travel | 400 mm |
| Max Clamping Surface | 600 x 600 mm |
| Max Workpiece Weight | 250 kg (3-achsig) |
| Feed Rate | 25 m/min |
| Acceleration | up to 10 m/s² |
| Rotary Axis | 360° infinite |
| Swivel Axis | +20° up to -110° |
| Rotary Axis Torque | 24 Nm (Version Pyramid Nano); 55 Nm (Version Pyton) |
| Swivel Axis Torque | 50 Nm (Version Pyramid Nano); 120 Nm (Version Pyton) |
| Max Workpiece Weight 5 Axis | 20 kg/44 lbs (Version Pyramid Nano); 50 kg/110 lbs (Version Pyton) |
| Spindle Options | HSK 25: 50.000 min-1, 6,4 kW (S1) Roller bearing; HSK 25: 80.000 min-1, 5,5 kW (S1) Air bearing; HSK 40: 42.000 min-1, 11 kW (S1) Roller bearing |
| Positioning Accuracy | ≤ 1,5 µm (VDI/DGQ 3441, P) |
| Repeatability | ≤ 1 µm (VDI/DGQ 3441, Ps) |
| Circular Deviation Gyx | ≤ 2,5 µm (ISO 230-4) |
| Circular Deviation Gxy | ≤ 2,5 µm (ISO 230-4) |
| Workpiece Changer | Integrated workpiece changing system (20 positions) or external system |
| Tool Capacity HSK 25 | 32-, 64- and 96 |
| Max Tool Diameter HSK 25 | 40 mm |
| Tool Capacity HSK 40 | 25-, 50- and 75 pockets |
| Max Tool Diameter HSK 40 | 50 mm |
| Max Tool Length | 160 mm |
| CNC Control | Heidenhain TNC 640 |
| Machine Weight | ca. 8.000 kg |
| Floor Space Required | 2,76 x 2,90 x 3,15 m (min. W/D/H) |
Specifications sourced from rainfordprecision.com (authorised dealer / distributor, not the manufacturer's own site) — verified 2026-10-06
Strengths & Limitations
Strengths
- 500 mm of X and Y with 400 mm of Z over a 600 x 600 mm clamping surface
- Positioning accuracy ≤ 1,5 µm (VDI/DGQ 3441, P), repeatability ≤ 1 µm (VDI/DGQ 3441, Ps)
- Circular deviation ≤ 2,5 µm (ISO 230-4) in GYX and GXY
- 250 kg maximum workpiece weight in 3-axis use ("3-achsig")
- Integrated workpiece changing system (20 positions) or an external system
- Choice of three spindles, including an air-bearing HSK 25 at 80.000 min-1
Limitations
- In 5-axis use the workpiece limit is 20 kg/44 lbs (Version Pyramid Nano) or 50 kg/110 lbs (Version Pyton), far below the 250 kg of 3-axis use
- Rotary axis torque is 24 Nm and swivel axis torque 50 Nm on the Pyramid Nano version
- Feed rate is 25 m/min, against the 60 m/min rapid traverse listed for the Micro HD
- The largest spindle is 11 kW (S1) on HSK 40
- Tool diameter is limited to 40 mm with HSK 25 and 50 mm with HSK 40
Best For
Frequently Asked Questions
01
The maximum workpiece weight is 250 kg, marked "3-achsig" (3-axis). For 5-axis use the brochure gives 20 kg/44 lbs for the version called Pyramid Nano and 50 kg/110 lbs for the version called Pyton. Decide which configuration the work needs before comparing the machine with a part's weight.
02
The rows that separate them are the rotary-swivel ratings. Version Pyramid Nano: 24 Nm rotary axis torque, 50 Nm swivel axis torque, 20 kg/44 lbs workpiece weight in 5-axis use. Version Pyton: 55 Nm, 120 Nm and 50 kg/110 lbs. The brochure's table states no other difference.
03
Three. HSK 25 with roller bearings: 50.000 min-1 and 6,4 kW (S1). HSK 25 with air bearings: 80.000 min-1 and 5,5 kW (S1). HSK 40 with roller bearings: 42.000 min-1 and 11 kW (S1).
04
With HSK 25 the magazine sizes are 32-, 64- and 96, and the maximum tool diameter is 40 mm. With HSK 40 they are 25-, 50- and 75 pockets, and the maximum tool diameter is 50 mm. Maximum tool length is 160 mm.
05
Positioning accuracy is ≤ 1,5 µm (VDI/DGQ 3441, P) and repeatability ≤ 1 µm (VDI/DGQ 3441, Ps). Circular deviation is ≤ 2,5 µm (ISO 230-4) for both GYX and GXY. These are figures for the machine; holding them on a part also depends on the room, the fixture and the tooling.
06
The minimum footprint is 2,76 x 2,90 x 3,15 m (W/D/H) and the weight is ca. 8.000 kg. For comparison the Micro Vario is listed at 5.200 kg and the Evo at 3,100 kg.
Videos
Swiss Instruments Limited
Rainford Precision
Community Discussions
Links to community discussions. Summaries are editorial — visit the original thread for full context.
