Porcelain and Technical Ceramics: Design porcelain, components for fittings, sanitary, electrical and wear protection since 1912.
KOBER Steinwiesen GmbH & Co. KG
SteinwiesenNew on Amplifa
About KOBER
KOBER Steinwiesen GmbH & Co. KG has been manufacturing porcelain at its Steinwiesen site in the Frankenwald region since 1912. Originally founded as a doll head factory, the electrification era marked the start of production of insulating electrical porcelain. Today the family-owned company employs 75 staff and specializes in hard porcelain and technical ceramics: from efficiently produced large series to hand-crafted one-off pieces. Production uses processes such as isostatic pressing, slip casting, roller forming, dry pressing and soft pressing, complemented by glazing and hard machining of alumina ceramics. In-house mould and machine building, tool development and jig and fixture construction enable high flexibility and delivery reliability. Customers come primarily from the sanitary and fittings industry, lighting and electrical engineering, dental technology, cosmetics, chemicals and wear protection. As a contract manufacturer for porcelain, KOBER delivers worldwide and is one of the leading European suppliers of porcelain components for fittings.
- Site
- Steinwiesen
- Processes
- Isostatic pressing, Casting (slip casting), Roller forming, Dry pressing, Soft pressing, Hard machining (grinding of technical ceramics), Glazing (elegant glazed surfaces), Product design and development
- Materials
- Porcelain (hard porcelain), Electrical porcelain, Technical ceramics, Alumina, Kaolin, Feldspar, Quartz, Alumina (technical ceramics)
- Certificates
- ISO 9001:2015, ISO 9001
- Founded
- 1912
- Employees
- 75
- Industries
- Sanitary industry, Fittings industry, Lighting and electrical, Dental technology, Cosmetics, Chemical industry
- 01
Product design and development
- 02
Tool and mould making
- 03
Jig and fixture construction
- 04
Ceramic forming (pressing, casting, roller forming)
- 05
Firing and glazing
- 06
Hard machining
- 07
Assembly / handling
- 08
Sales
Materials and Manufacturing Processes
Porcelain (hard porcelain)
Material for components in sanitary, fittings, electrical and design applications; inert, durable and resistant to aging.
Electrical porcelain
Insulating porcelain with good insulation capability and temperature stability for electrical and lighting applications.
Alumina (technical ceramics)
Wear-resistant, hard-machinable ceramic for cyclones, jet pumps, nozzles, yarn guides and plough shares.
Ceramic raw materials
Natural raw materials of the porcelain body; ground porcelain shards are recycled as refractory filler.
Isostatic pressing
Very high compaction and good pressure distribution of the material.
Slip casting (casting)
Low tooling costs, different sizes and difficult geometries feasible.
Roller forming
Efficient production with defined wall thickness and good roundness for rotationally symmetrical articles.
Dry pressing
Perfect surface, high dimensional accuracy and very good reproducibility, optionally with defined porosity.
Soft pressing
Efficient, highly automated production even of difficult geometries.
Glaze (glazed surfaces)
Elegant glazed surfaces as a functional and aesthetic surface finish of the porcelain.
Hard machining (grinding)
Grinding of technical ceramics from the precisely ground single nozzle to mass production of packing bodies.
Sites
Steinwiesen
DEProduction and sales (headquarters)
- Lot size
- Single-piece production to mass production
- Materials
- Porcelain, electrical porcelain, technical ceramics, alumina
- Sliding table press 60 t (RAM Presse)
- Kilns
- Drying rooms
- Heat recovery
- Photovoltaic system
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Isostatic pressingCeramic forming | – | – | – | – | Porcelain |
| Casting (slip casting)Ceramic forming | – | – | – | – | Porcelain |
| Roller formingCeramic forming | – | – | – | – | Porcelain |
| Dry pressingCeramic forming | – | – | – | – | Porcelain |
| Soft pressingCeramic forming | – | – | – | – | Porcelain |
| Hard machining (grinding of technical ceramics)Machining | – | – | – | Single-piece production – Mass production | Alumina |
| Glazing (elegant glazed surfaces)Surface | – | – | – | – | Porcelain |
| Product design and developmentEngineering | – | – | – | – | – |
| Tool and mould making (in-house mould and machine building)Engineering | – | – | – | – | – |
| Jig and fixture constructionEngineering | – | – | – | – | – |
| Assembly / handling (carousel systems, handling systems)Assembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Sliding table press 60 t | RAM Presse | – | – | – | Steinwiesen |
Additional services
Reference customers
Quality
Production is certified to ISO 9001:2015 (TÜV Rheinland, scope: production and sale of design porcelain, porcelain articles for the fittings and sanitary fittings industry as well as contract manufacturing of technical ceramics). According to the company, quality, delivery reliability and high flexibility are lived values based on decades of experience.
| Evidence | Steinwiesen |
|---|---|
| ISO 9001 |
History
- 1912
Founded as a doll head factory in Steinwiesen
Start of production of insulating electrical porcelain with electrification
- 2024
Initial certification to ISO 9001:2015 by TÜV Rheinland (valid until 12.10.2027)