Manufacturer of high-performance abrasives: cut-off wheels, grinding wheels, grinding cups, diamond tools and coated abrasives.
WEFRA Schleifmittel GmbH
95126 Schwarzenbach/Saale · Kirchenlamitzer Str. 15New on Amplifa
About WEFRA
WEFRA Schleifmittel GmbH, based in Schwarzenbach/Saale (Bavaria), manufactures high-performance abrasives for cutting, rough grinding and grinding. Founded in 1929 originally as a family business with talc mining and granite trading, the company began manufacturing high-performance abrasives in 1955 as one of the first manufacturers in Germany. The product portfolio includes cut-off wheels and grinding wheels with special corundum (iron and sulphur content max. 0.1 %), grinding cups, diamond cut-off wheels, diamond grinding cups, diamond drill bits, fibre discs, flap grinding discs, lamellar grinding points and rollers as well as power fleece grinding bodies. The tools are used for machining steel, stainless steel, aluminium, non-ferrous metals, concrete, natural stone such as granite and sandstone, asphalt, wood and plastics. Customers come among others from metalworking, structural steelwork, construction, stone processing, monument conservation, bodywork, shipbuilding and the food and woodworking industries. Since 2025 the business operation has belonged to STELLA GRUPPE; in addition to manufacturing, the company offers technical consulting, custom formulation and product development as well as order-based production with customer-oriented warehousing.
- Site
- Schwarzenbach/Saale
- Processes
- Manufacturing of high-performance abrasives (bonded and coated abrasives), Technical consulting on grinding tool selection (grit, bond, dispersion, grinding technique), Technical consulting / Technical Service, custom formulation and product development, customer-oriented warehousing and short delivery times, order-based manufacturing
- Materials
- Steel, Stainless steel, Aluminium, Non-ferrous metals, Concrete, Granite, Slate, Sandstone
- Founded
- 1929
- Industries
- Metalworking, Metal construction / welding technology, Construction industry, Stone processing, Monument conservation, Bodywork
- 01
Consultation on grinding tool selection (grit, bond, dispersion, grinding
- 02
Formulation and product development
- 03
Manufacturing of abrasives (bonded and coated)
- 04
Quality assurance
- 05
Customer-oriented warehousing
- 06
Delivery
Materials and Abrasive Grains
Special corundum (aluminium oxide)
Abrasive grain of the cut-off wheels with max. 0.1 % iron and sulphur content, without surface oxidation of the abrasive particles.
Silicon carbide
Abrasive grain for power fleece grinding bodies and applications on hard and non-metallic materials.
Diamond (natural/synthetic)
Setting for diamond cut-off wheels, grinding cups and drill bits; bond hardness is matched to the material.
Resin bond
Bond for bonded abrasive bodies such as cut-off wheels, grinding wheels and grinding cups.
Vulcanized fibre with resin and abrasive grain
Backing material of the fibre discs for deburring, derusting and weld seam finishing.
Locations
Schwarzenbach/Saale
DEHeadquarters / Production
- Materials
- Steel, stainless steel, aluminium, non-ferrous metals, concrete, granite, sandstone, asphalt, wood, plastics
- Manufacturing of bonded and coated abrasives
- Photovoltaic systems (4 systems, approx. 50 % more electricity than site consumption)
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of high-performance abrasives (bonded and coated abrasives)Surface | – | – | – | – | Steel, Stainless steel, Aluminium, Concrete, Granite, Slate, Sandstone, Magmatite, Asphalt, Fresh concrete, Clinker, Wood, Plastics, Non-ferrous metals |
| Technical consulting on grinding tool selection (grit, bond, dispersion, grinding technique)Engineering | – | – | – | – | – |
Additional services
History
- 1929
Founded as a family business; originally talc mining and granite trading
- 1955
Start of high-performance abrasive manufacturing – one of the first manufacturers in Germany
- 1987
STELLA GRUPPE integrates Winterling Keramik in Schwarzenbach an der Saale
- 2025
Acquisition of the WEFRA WERKE business operation by STELLA GRUPPE and relocation of the company headquarters to Schwarzenbach/Saale