
Engineering, sales and manufacturing of custom precision parts made of technical ceramics (Al2O3, ZrO2, Si3N4, SiC)

sd Hartstoff Technik GmbH
79798 JestettenNew on Amplifa
About us
sd Hartstoff Technik GmbH, based in Jestetten (district of Waldshut, Baden-Württemberg), has specialized in ceramic materials technology for over 30 years. The company offers engineering, materials consulting and sales of custom products made of high-performance ceramics for industrial applications. Manufacturing covers complex, high-precision ceramic parts such as ceramic tubes, ceramic shafts, ceramic pistons, precision balls, cutting tools, welding rollers, ceramic bearings and wire guides. Materials include aluminum oxide, zirconium oxide, silicon nitride and silicon carbide; ceramic shafts are supplied in ground quality from Ø 2 mm in lengths up to 300 mm, precision balls in dimensions from Ø 0.80 to 60.00 mm (among others to DIN 5401). An extensive warehouse inventory of semi-finished products enables short-lead-time manufacturing of precision parts for prototypes and small series; series production to customer specifications is also offered. Customer industries range from pump manufacturing, electrical engineering, robotics and metrology/control technology to tool and mold making and furnace construction, as well as the pharmaceutical, food, cosmetics and biotechnology sectors. Delivery is worldwide.
- Site
- Jestetten
- Processes
- Grinding of ceramic shafts (ground quality), Manufacturing of precision balls made of high-performance ceramics, Engineering and sales of custom products made of high-performance ceramics, Machining of high-performance ceramic materials / manufacturing of custom ceramic parts, Manufacturing of precision parts for prototype and small-series production, Production of prototypes and series production to customer specification (drawings), Quality assurance / inspection (ISO 9001:2015 certified), Materials consulting
- Materials
- Aluminum oxide, Zirconium oxide, Silicon nitride ceramic, Silicon carbide, Silicon nitride
- Certificates
- ISO 9001:2015, ISO 9001
- Industries
- Pump manufacturing, Electrical engineering, Robotics, Metrology and control technology, Tool and mold making, Furnace construction
- 01
Materials consulting
- 02
Engineering
- 03
Manufacturing of custom ceramic parts (processing via production partners)
- 04
Grinding/precision machining
- 05
Quality assurance
- 06
Sales and worldwide delivery
Materials & Processes
Aluminum oxide
Material for ceramic shafts in ground quality as well as precision balls and laboratory and high-temperature ceramics.
Zirconium oxide
For ceramic shafts, cutting tools, cutting blades and wire guides with high edge stability.
Silicon nitride
Used for welding rollers for sizing and longitudinal seam welding of precision tubes as well as precision balls.
Silicon carbide
High-performance material for wear and insulation applications in mechanical and plant engineering.
Location

Jestetten
DEHeadquarters: engineering, sales, consulting
- Materials
- Al2O3, ZrO2, Si3N4, SiC
Components









Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Grinding of ceramic shafts (ground quality)Machining | – | 300 mm | – | – | Aluminum oxide (Al2O3), Zirconium oxide (ZrO2) |
| Manufacturing of precision balls made of high-performance ceramicsMachining | – | Ø 0.80 to 60.00 mm | – | – | Aluminum oxide, Silicon nitride |
| Engineering and sales of custom products made of high-performance ceramicsEngineering | – | – | – | – | Aluminum oxide, Zirconium oxide, Silicon nitride, Silicon carbide |
| Machining of high-performance ceramic materials / manufacturing of custom ceramic partsMachining | – | – | – | – | Aluminum oxide, Zirconium oxide, Silicon nitride, Silicon carbide |
| Manufacturing of precision parts for prototype and small-series productionMachining | – | – | – | Prototypes – Small series | Aluminum oxide, Zirconium oxide, Silicon nitride, Silicon carbide |
| Production of prototypes and series production to customer specification (drawings)Machining | – | – | – | Prototypes – Series | Al2O3, ZrO2, SiC, Si3N4 |
| Quality assurance / inspection (ISO 9001:2015 certified)Testing | – | – | – | – | – |
Additional services
Quality
Quality assurance is carried out in accordance with a certified quality management system per ISO 9001:2015 (QAS International GmbH, certificate GM2183). Precision balls are delivered according to DIN 5401.
| Evidence | Jestetten |
|---|---|
| ISO 9001 |
History
- 2012
First certification to ISO 9001 in February 2012
- 2012
Certified to ISO 9001:2015 since February 2012