Precision hard machining of components made from technical ceramics – from semi-finished stock to inspected final dimensions.
STECHER ceramicparts GmbH
Zelgstrasse 63, CH-3661 Uetendorf (Head office / Production)New on Amplifa
One Workshop. Five Makers.
STECHER ceramicparts GmbH is a manufacturing company in Uetendorf in the canton of Bern, specialising in the machining of high-performance ceramics. Since 2001, the company has been producing components made from technical ceramics for industry, medical technology and research. Its core competence lies in hard machining at the micrometer level: nine established processes – cut-off, surface and groove grinding, CNC contour grinding, cylindrical and centerless grinding, internal honing, lapping, polishing, ultra-sonic machining as well as laser engraving and cutting – are combined under one workshop roof. Materials machined include oxide ceramics (aluminium oxide, zirconium oxide), non-oxide ceramics (aluminium nitride, silicon nitride, silicon carbide, boron nitride), silicate ceramics as well as glasses and sapphire, down to tolerances of ±0.005 mm. The five-person team supports customers from materials consulting through prototyping to series production. In 2025, the machine park was expanded with two ultra-sonic machines from Dama.
- Site
- Uetendorf
- Processes
- Cut-off, surface and groove grinding, CNC contour grinding, Cylindrical grinding, Centerless grinding, CNC cylindrical profile grinding, Internal honing, Lapping and polishing, Ultra-sonic machining
- Materials
- Aluminium oxide Al₂O₃ 99.7%, Aluminium oxide Al₂O₃ 99.8%, Substrate ceramic Al₂O₃ 96%, Zirconium oxide (Y-/MgO-stabilised), Fused silica (Quarzgut), Aluminium nitride, Silicon nitride, Silicon carbide
- Founded
- 2001
- Employees
- 5
- Industries
- Industry, Medical technology, Research, Electronics / insulators, Thermal engineering / furnace construction, Wear technology
- 01
Materials consulting / material selection
- 02
Prototyping
- 03
Hard machining (grinding, honing, lapping, ultra-sonic, laser)
- 04
Inspection / final dimensions
- 05
Delivery
Locations
Uetendorf
CHHead office / Production
- Materials
- Oxide ceramics, non-oxide ceramics, silicate ceramics, glasses, sapphire
- 2 Dama ultra-sonic machines (2025)
- Laser machining system (cuts up to 340 × 240 mm)
- Grinding machines for cut-off, surface, groove, CNC contour, cylindrical, centerless and CNC cylindrical profile grinding
- Internal honing machine
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Cut-off, surface and groove grindingMachining | – | 250 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| CNC contour grindingMachining | – | 300 mm × 130 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| Cylindrical grindingMachining | – | 350 mm (between centres) × max. diameter 150 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| Centerless grindingMachining | – | 250 mm × Diameter 0.5 - 50 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| CNC cylindrical profile grindingMachining | – | max. diameter 100 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| Internal honingMachining | – | Internal diameter 2 - 25 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| Lapping and polishingMachining | – | Circular polishing diameter 5 - 30 mm | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| Ultra-sonic machiningMachining | – | – | – | – | Oxide ceramics, Non-oxide ceramics, Silicate ceramics, Glasses & other ceramics |
| Laser engraving & cuttingMachining | – | Cuts up to 340 × 240 mm at 0.02–3.0 × Engravings up to 45 × 45 mm | – | – | Ceramics, Sapphire, Metal alloys |
| Hard machining of technical ceramics in the µm rangeMachining | ±0.005 mm · Ra<0.05 (ZrO₂) | – | – | – | Aluminium oxide, Zirconium oxide, Silicon carbide, Sapphire, Fused silica, Macor |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Ultra-sonic machine | Dama | 2 | – | 2025 | Uetendorf |
| Laser machining system | – | – | Cuts up to 340 × 240 mm | – | Uetendorf |
Additional services
Workshop History
- 2001
Company founded by Claude Stecher with 2 employees in Thun.
- 2005
Relocation to the newly built company building in Uetendorf.
- 2017
Co-founding of the subsidiary DNA-Laser GmbH in Uetendorf.
- 2025
Acquisition of two ultra-sonic machines from Dama.
- 2026
Acquisition of the company stone-ware gmbh from Wetzikon.