Mining and processing of barite and fluorspar at the Grube Clara mine in the Central Black Forest
Sachtleben Bergbau GmbH & Co. KG
Hausach (office premises) · Wolfach/Oberwolfach (Grube Clara mine with processing and silo)New on Amplifa
About Sachtleben Bergbau
Sachtleben Bergbau GmbH & Co. KG operates the Grube Clara mine in Wolfach/Oberwolfach in the Central Black Forest. Barite (baryte) has been mined there for more than 125 years, and fluorspar (fluorite) has additionally been extracted for around 45 years. The value chain comprises underground mining with tunnel driving, drilling and blasting, followed by the processing and refining of the ores into high-quality products for the downstream processing industry. The processing operation uses sorting processes based on flotation with agitator cells as well as drying lines. Quality assurance is carried out by wet-chemical analyses in the company's own laboratory. Barite and fluorspar are used, among other things, as fillers for coatings and paints as well as for plastics and composite materials. The company is part of the Sachtleben Minerals Group, generates its business with around 45 employees at the site, and presents itself internationally, among other venues, at the European Coatings Show and at JEC World in Paris.
- Site
- Hausach
- Processes
- Mining (underground mining of barite/fluorspar, tunnel driving, drilling, blasting), Processing (refining of ores into high-quality products), Sorting processes / flotation with agitator cells, Drying (drying lines with secondary air control, waste heat recovery), Quality assurance (wet-chemical analyses in the company's own laboratory), Processing/refining of ores, Sorting processes/flotation, Quality assurance with in-house laboratory (wet-chemical analyses)
- Materials
- Barite (Baryte), Fluorspar (Fluorite)
- Industries
- Coatings/Paints, Plastics/Composite Materials, Pigments and Fillers, Pigments and Fillers (Barite/Fluorspar)
- 01
Underground mining (tunnel driving, drilling, blasting)
- 02
Ore and waste rock transport (loading ramp)
- 03
Processing/refining
- 04
Sorting processes/flotation with agitator cells
- 05
Drying (drying lines)
- 06
Quality assurance in the company's own laboratory
- 07
Silo storage and dispatch (bulk goods, tarpaulin/container)
Products & Raw Materials
Barite (Baryte)
Mineral mined for over 125 years at the Grube Clara mine, used as a filler, among other things, in coatings, paints and plastics.
Fluorspar (Fluorite)
Raw material additionally mined for around 45 years for the downstream processing industry.
Locations
Hausach
DEOffice premises
Wolfach/Oberwolfach
DEOperating site Grube Clara: mine, processing, silo
- Materials
- Barite (BaSO4), fluorspar (CaF2)
- Agitator cells (flotation)
- Drying line
- Silo (bulk storage/loading station)
- Wheel loader
- Forklift truck
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Mining (underground mining of barite/fluorspar, tunnel driving, drilling, blasting)Engineering | – | – | – | – | Barite, Fluorspar |
| Processing (refining of ores into high-quality products)Engineering | – | – | – | – | Barite, Fluorspar |
| Sorting processes / flotation with agitator cellsEngineering | – | – | – | – | Barite, Fluorspar |
| Drying (drying lines with secondary air control, waste heat recovery)Surface | – | – | – | – | Barite, Fluorspar |
| Quality assurance (wet-chemical analyses in the company's own laboratory)Testing | – | – | – | – | Barite, Fluorspar |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Agitator cells (flotation) | – | – | – | – | Processing Wolfach/Oberwolfach |
| Drying line | – | – | – | – | Processing |
| Wheel loader | – | – | – | – | Operating site Grube Clara |
| Forklift truck | – | – | – | – | Operating site Grube Clara |
| Silo (bulk storage/loading station) | – | – | – | – | Wolfach |
Additional services
History
- 1901
Start of barite mining at Grube Clara (over 125 years of mining in the Central Black Forest)
- 1981
Start of fluorspar mining (approx. 45 years ago)
- 2023/2024
Investments in ecological offset contributions: PV system (€401,000), charging infrastructure/e-mobility (€100,000), fan replacement and secondary air control
- 2025
Participation in the European Coatings Show in Nuremberg
- 2026
125 years of Grube Clara (anniversary "The Rock") and first-time participation as an exhibitor at JEC World in Paris at the joint stand with Baden-Württemberg International