Extraction and processing of shell limestone into road construction aggregates, concrete chippings, hydraulic engineering stone and fertiliser lime
Hohenloher Schotterwerke GmbH & Co. KG
Osterburken (administration) · Untermünkheim-Wittighausen (quarry/crushing plant) · Schwäbisch Hall (sales, HKS)New on Amplifa
About HSW
Hohenloher Schotterwerke GmbH & Co. KG (HSW), headquartered in Osterburken (Baden-Württemberg), operates the Wittighausen shell limestone quarry in Untermünkheim. In the associated crushing plant, road construction aggregates and concrete chippings to DIN EN 12620 are produced from Upper Muschelkalk. Further products include chippings for asphalt mixing plants and concrete plants to DIN EN 13043 and DIN 12260, mineral concrete, recycling products, masonry blocks and hydraulic engineering stone. Since 2004, a drum mixing plant has been used for the granulation of fertiliser lime for agriculture, and an air classifier provides de-dusted sand. The company also accepts soil material and excavated earth for recovery under VwV-Boden and ErsatzbaustoffV and operates an HGT plant for tested dry construction materials. Distribution has been handled since 1978 by the sister company HKS Haller Kalkstein GmbH & Co. Vertriebs KG in Schwäbisch Hall. Customers are found in road construction, civil engineering, the concrete and asphalt industries, hydraulic engineering and agriculture.
- Site
- Osterburken
- Processes
- Production of road construction aggregates and concrete chippings to DIN EN 12620, Production of chippings to DIN EN 13043 and DIN EN 12260, Granulation of fertiliser lime (drum mixing plant), Production of hydraulic engineering stone, Quarry extraction of shell limestone, Recovery of soil material (acceptance of excavated earth) under VwV-Boden, Chippings for asphalt mixing plants and concrete plants (DIN EN 13043, DIN 12260), Mineral concrete
- Materials
- Shell limestone (Upper Muschelkalk), Fertiliser lime, Concrete recycling material (RC construction materials), Concrete recycling material
- Certificates
- Product standards DIN EN 12620 / 13043 / 12260
- Founded
- 1975
- Industries
- Road construction, Civil engineering, Concrete industry, Asphalt mixing plants, Hydraulic engineering, Agriculture (fertiliser lime)
- 01
Quarry extraction of Upper Muschelkalk
- 02
Crushing and screening at the Wittighausen crushing plant
- 03
Processing (air classifier, granulation)
- 04
Intermediate storage in silo facilities
- 05
Loading and distribution via HKS
Materials and Products
Shell limestone (Upper Muschelkalk)
Base rock from the Wittighausen quarry for road construction aggregates, concrete chippings and hydraulic engineering stone.
Fertiliser lime
Lime granulated from shell limestone for agricultural soil fertilisation.
Concrete recycling material
RC construction materials from the recovery of soil material and excavated earth under VwV-Boden and ErsatzbaustoffV.
Plants and Locations
Wittighausen Crushing Plant
DEShell limestone quarry and crushing plant
- Materials
- Shell limestone, fertiliser lime
- Chipping silo facility
- HGT plant
- Hydraulic engineering stone facility
- Drum mixing plant (fertiliser lime granulation)
- Silo facility for asphalt and concrete plants
- Air classifier
Osterburken
DEAdministration
Schwäbisch Hall (HKS)
DESales via HKS Haller Kalkstein GmbH & Co. Vertriebs KG
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of road construction aggregates and concrete chippings to DIN EN 12620Casting | – | – | – | – | Shell limestone |
| Production of chippings to DIN EN 13043 and DIN EN 12260Casting | – | – | – | – | Shell limestone |
| Granulation of fertiliser lime (drum mixing plant)Casting | – | – | – | – | Fertiliser lime |
| Production of hydraulic engineering stoneCasting | – | – | – | – | Shell limestone |
| Quarry extraction of shell limestoneCasting | – | – | – | – | Shell limestone |
| Recovery of soil material (acceptance of excavated earth) under VwV-BodenOther | – | – | – | – | Soil material, Recycling products |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Chipping silo facility | – | – | – | – | Wittighausen plant |
| HGT plant | – | – | – | 2000 | Wittighausen plant |
| Facility for the production of hydraulic engineering stone | – | – | – | 2001 | Wittighausen plant |
| Drum mixing plant (fertiliser lime granulation) | – | – | – | 2004 | Wittighausen plant |
| Silo facility for asphalt mixing plants and concrete plants | – | – | – | 2010 | Wittighausen plant |
| Air classifier (production of de-dusted sand) | – | – | – | – | Wittighausen plant |
Additional services
Quality and Test Certificates
The products are manufactured in accordance with the standardised requirements of DIN EN 12620, DIN EN 13043 and DIN 12260; the recovery of soil material is subject to the documentation obligations of ErsatzbaustoffV.
| Evidence | Wittighausen |
|---|---|
| Product standards DIN EN 12620 / 13043 / 12260 |
History
- 1930er
The company Georg Engelhardt (Künzelsau-Garnberg) operated the Garnberg quarry.
- 1972
The company Georg Engelhardt acquired the Wittighausen quarry and intensified extraction.
- 1974
The Engelhardt company ran into economic difficulties; the quarries were acquired from the insolvency estate by Paul Kleinknecht, Alfred Kleinknecht, Kocher-Jagst-Beton and Heinrich Krieger.
- 1975
Foundation of Hohenloher Schotterwerke GmbH & Co. KG; contribution of the Wittighausen and Garnberg quarries.
- 1978
Distribution via the sales office HKS (Haller Kalkstein).
- 1986
Closure of operations at the Garnberg quarry; recultivation since then.
- 1993
Construction of a chipping silo facility for asphalt mixing plants and concrete plants.
- 1994
Relocation of the crushing plant into the interior of the quarry with improvements in plant and dust extraction technology.
- 2000
Construction of an HGT plant and a cement silo.
- 2001
Commissioning of a facility for the production of hydraulic engineering stone.
- 2004
Installation of a drum mixing plant for the granulation of fertiliser lime.
- 2010
Construction of a silo facility for chippings to DIN EN 13043 and 12260; installation of an air classifier for de-dusted sand.