
Extraction and processing of gravel, sand, gravel-sand, chippings, frost-protective gravel, filter gravels and topsoil in Schwandorf-Klardorf.
Kieswerk Klardorf GmbH & Co. Produktions KG
Schwandorf-Klardorf (gravel plant and company headquarters) · Schwandorf Klausensee (gravel extraction)New on Amplifa
About Kieswerk Klardorf
Kieswerk Klardorf GmbH & Co. Produktions KG has been extracting gravel and sand at the Klardorf site near Schwandorf in the Upper Palatinate since 1972. The company extracts the raw materials in open-pit mining and processes them in its own gravel washing and screening plant: organic components are separated out and the material is sorted by grain size. The product range includes washed gravel-sand 0–4 mm, chippings in various grain sizes, grading fractions from 0–8 mm to 100–x mm, frost-protective gravel 0–63 mm, as well as filter gravels, topsoil and excavated material for backfilling. Customers include the concrete industry and construction firms from civil engineering, screed construction, landfill construction as well as landscaping, along with small and private customers. The products are loaded ex works and are quality-monitored according to EN 12620. The equipment includes Komatsu wheel loaders of the WA470 and WA430 types, sorting and mixing plants and conveyor belts.
- Site
- Schwandorf (Bavaria, Upper Palatinate)
- Processes
- Gravel and sand extraction (mining), Washing and classification (gravel washing plant, sorting by grain size), Processing of gravel-sand 0-4 mm, Processing of chippings 4-8 mm, Processing of chippings 8-16 mm, Processing of chippings 16-31.5 mm, Processing grading 0-8 mm, Processing grading 0-16 mm
- Materials
- Gravel, Sand, Gravel-sand 0-4 mm, Chippings, Grading, Frost-protective gravel 0-63 mm, Filter gravel, Topsoil
- Certificates
- EN 12620 (quality monitoring)
- Founded
- 1972
- Industries
- Concrete industry, Construction firms, Civil engineering, Screed construction, Landfill construction, Garden and landscaping
- 01
Gravel and sand extraction (mining)
- 02
Washing and removal of organic components (gravel washing plant)
- 03
Classification by grain size (sorting plant)
- 04
Mixing (mixing plant)
- 05
Loading ex works
Raw materials and products
Gravel-sand
Naturally occurring mixture of sand and gravel, washed, for civil engineering, concrete and screed.
Chippings
Washed gravel in grain sizes 4–8, 8–16 and 16–31.5 mm for drainage, backfilling of basement walls and encasement of pipes.
Gradings
Washed gravel gradings 0–8, 0–16 and 0–32 mm as well as 32–x mm and 100–x mm for various earthworks and civil engineering applications.
Frost-protective gravel
Coarse-grained gravel with large voids, allowing water to percolate unhindered into the subsoil.
Filter gravel
For garden design, house edging, drainage and infiltration areas.
Topsoil
Influences the properties and functions of the soil, used in landscaping.
Excavated material
Material generated during extraction without usable raw materials, e.g. for backfilling extraction fields no longer in use.
Sites

Schwandorf-Klardorf
DEGravel plant, works and company headquarters
- Materials
- Gravel, sand, gravel-sand, chippings, frost-protective gravel, filter gravel, topsoil, excavated material
- Gravel washing and screening plant
- Sorting plant
- Mixing plant
- Komatsu wheel loader WA470
- Komatsu wheel loader WA430
Products



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gravel and sand extraction (mining)Casting | – | – | – | – | Gravel, Sand |
| Washing and classification (gravel washing plant, sorting by grain size)Processing | – | – | – | – | Gravel, Sand |
| Processing of gravel-sand 0-4 mmProcessing | Grain size 0-4 mm | – | – | – | Gravel-sand |
| Processing of chippings 4-8 mmProcessing | Grain size 4-8 mm | – | – | – | Gravel, washed gravel |
| Processing of chippings 8-16 mmProcessing | Grain size 8-16 mm | – | – | – | Gravel, washed gravel |
| Processing of chippings 16-31.5 mmProcessing | Grain size 16-31.5 mm | – | – | – | Gravel, washed gravel |
| Processing grading 0-8 mmProcessing | Grain size 0-8 mm | – | – | – | Gravel, washed gravel |
| Processing grading 0-16 mmProcessing | Grain size 0-16 mm | – | – | – | Gravel, washed gravel |
| Processing grading 0-32 mmProcessing | Grain size 0-32 mm | – | – | – | Gravel, washed gravel |
| Processing grading 32-x mmProcessing | Grain size from 32 mm | – | – | – | Gravel |
| Processing grading 100-x mmProcessing | Grain size from 100 mm | – | – | – | Gravel |
| Processing frost-protective gravel 0-63 mmProcessing | Grain size 0-63 mm | – | – | – | Frost-protective gravel |
| Processing filter gravelsProcessing | – | – | – | – | Filter gravel |
| Processing topsoilProcessing | – | – | – | – | Topsoil |
| Processing excavated material (backfill material)Processing | – | – | – | – | Excavated material |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wheel loader | Komatsu WA470 | – | – | – | Klardorf / Schwandorf |
| Wheel loader | Komatsu WA430 | – | – | – | Klardorf / Schwandorf |
| Gravel washing and screening plant (sorting/washing plant) | – | – | – | – | Klardorf / Schwandorf |
| Sorting plant | – | – | – | – | Schwandorf-Klardorf |
| Mixing plant | – | – | – | – | Klardorf / Schwandorf |
| Conveyor belt | – | – | – | – | Schwandorf Klausensee |
Additional services
Quality and quality monitoring
The products are quality-monitored according to EN 12620. Otherwise, the general terms and conditions of the Bavarian sand and gravel industry apply.
| Evidence | Schwandorf-Klardorf |
|---|---|
| EN 12620 (quality monitoring) |
History
- 1972
Start of gravel and sand extraction at the Klardorf site