
Manufacturer of technical ceramics: foundry supplies, burner ceramics, ceramic fiber products and industrial furnace construction

UNI-TECH KERAMIK GmbH
Berkatal (Frankenhain), Noltinastr. 3 · DENew on Amplifa
About Unitech Keramik
UNI-TECH KERAMIK GmbH from Berkatal (Frankenhain) in North Hesse is a manufacturer of technical ceramics with the business units industrial furnace construction and thermal technology, foundry supplies, burner ceramics and ceramic fiber products. In addition to the manufacture and marketing of standard products, a key focus is on the development and production of custom components. In the foundry sector, the company manufactures casting nozzles and control stoppers for continuous casting plants made of Fused Silica; in the burner sector, flame tubes and nub recuperators. Its own fiber production includes Fiberfrax® raw fibers made from alumina, silicon dioxide and zircon sand, which are melted in an electric arc furnace at over 2000 °C and processed into fibers by spinning or blowing; from these, needled mats, wet-process papers, felts and high-temperature-resistant Duraboard® boards are produced. The product range is complemented by biosoluble Insulfrax® fibers based on calcium-magnesium-silicate up to 1100 °C, Fixwool® adhesives and coatings, as well as industrial furnace construction including planning in accordance with applicable safety regulations. Customers come from industrial furnace construction, foundry technology, thermal insulation, burner technology and fire protection.
- Site
- Berkatal (Frankenhain)
- Processes
- Manufacture of technical ceramics (standard products and custom components), Industrial furnace construction and thermal technology, Manufacture of ceramic fiber raw fibers by spinning or blowing process, Manufacture of ceramic fiber mats (needled lightweight mats, high-performance blow-molded and, Manufacture of ceramic fiber papers by wet process, Manufacture of ceramic fiber felts (felt process), Manufacture of high-temperature-resistant boards (Fiberfrax Duraboard), Manufacture of foundry supplies: casting nozzles and control stoppers for continuous casting plants
- Materials
- Fused Silica, Ceramic fibers (Fiberfrax), Alumina, Silicon dioxide, Zircon sand, Calcium-magnesium-silicate (Insulfrax), Aluminium foil, High-temperature ceramic fibers (alumina, silicon dioxide, zircon sand)
- Industries
- Industrial furnace construction, Foundry technology / continuous casting, Thermal insulation / insulation, Burner technology, Fire protection
- 01
Processing of high-purity raw materials (alumina, silicon dioxide, zircon sand)
- 02
Melting in the arc furnace at over 2000 °C
- 03
Fiber production by spinning or blowing process
- 04
Processing into mats, papers, felts and boards
- 05
Manufacture of Fused Silica components (casting nozzles, control stoppers,
- 06
Industrial furnace construction and thermal technology
- 07
Bonding/lamination with Fixwool adhesives and coatings
Materials and Processes
Fused Silica
Material for casting nozzles and control stoppers for continuous casting plants.
High-temperature ceramic fibers (alumina, silicon dioxide, zircon sand)
Basis for raw fibers, mats, papers, felts and Duraboard® boards for thermal insulation.
Calcium-magnesium-silicate fibers
Biosoluble high-temperature fiber without hazardous substance classification, stable up to 1100 °C.
Adhesives and coatings
For bonding mats, felts, papers, boards and modules to metallic surfaces.
Aluminium foil
Bonded to the mat in the Insulfrax SF™ process, e.g. for fire protection and vapor barrier.
Locations
Berkatal (Frankenhain)
DEHeadquarters and production
- Materials
- Fused Silica, ceramic fibers, Insulfrax
- Arc furnace
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of technical ceramics (standard products and custom components)Plastics | – | – | – | – | Technical ceramics |
| Industrial furnace construction and thermal technologyEngineering | – | – | – | – | – |
| Manufacture of ceramic fiber raw fibers by spinning or blowing processPlastics | – | – | – | – | Ceramic fibers (alumina, silicon dioxide, zircon sand), Calcium-magnesium-silicate |
| Manufacture of ceramic fiber mats (needled lightweight mats, high-performance blow-molded andPlastics | – | – | – | – | Fiberfrax high-temperature ceramic fibers, Insulfrax (calcium-magnesium-silicate) |
| Manufacture of ceramic fiber papers by wet processPlastics | – | – | – | – | Ceramic fibers |
| Manufacture of ceramic fiber felts (felt process)Plastics | – | – | – | – | high-purity ceramic fibers with organic binder |
| Manufacture of high-temperature-resistant boards (Fiberfrax Duraboard)Plastics | – | – | – | – | Ceramic fiber (Fiberfrax Duraboard) |
| Manufacture of foundry supplies: casting nozzles and control stoppers for continuous casting plantsCasting | – | – | – | – | Fused Silica |
| Manufacture of burner ceramics (flame tube, nub recuperator)Plastics | – | – | – | – | Technical ceramics |
| Bonding of mats, felts, papers, boards and modules to metallic surfaces (FixwoolJoining | – | – | – | – | Fixwool adhesives and coatings |
| Processing of biosoluble high-temperature fibers with application of aluminium foil (InsulfraxPlastics | – | – | – | – | Insulfrax high-temperature fibers, Aluminium foil |
| Impregnation of ceramic fiber mats with inorganic binder (Fiberfrax Moist Pak)Plastics | – | – | – | – | Fiberfrax ceramic fiber mats |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Arc furnace | – | – | – | – | – |