Family business on the Lower Rhine: extraction and processing of sand, gravel, crushed stone and natural building materials at two plants
Welbers Kieswerke GmbH
Issum (Headquarters/Landfill) · Geldern · Weeze-WembNew on Amplifa
Family company on the Lower Rhine since 1957
Welbers Kieswerke GmbH is a medium-sized family company headquartered in Issum (Twisteden) on the Lower Rhine. Since 1957, the company has extracted and produced natural building materials such as Rhine sand, Rhine gravel, quartz grit, limestone, basalt, mixed gravel and screened soils for the region. Extraction is mainly by wet mining of sand and gravel; at the Geldern and Weeze-Wemb plants the raw materials are classified into defined grain sizes using crushers, screening plants and washing or cleaning systems. The mineral aggregates are used in road and civil engineering, building construction, landscaping and in the concrete and asphalt industries; in addition, Welbers supplies small businesses and private customers from one tonne upwards. Delivery is carried out with the company's own fleet (13 semi-trailer trucks up to 28 t, one 3-axle truck up to 14 t) in the Lower Rhine region. After excavation, the areas are recultivated in close coordination with nature conservation authorities and reused for biotopes, agriculture and recreational purposes.
- Site
- Issum
- Processes
- Rock extraction/excavation (wet extraction of sand and gravel), Comminution (crushing), Screening/classification into grain sizes, Washing/cleaning (washing and cleaning systems, cyclone sand), Delivery/logistics with own fleet, Delivery with own fleet (13 semi-trailer trucks up to 28 t, 1 three-axle truck up to 14 t), Dispatch with modern software, Online ordering
- Materials
- Rhine sand, Cyclone sand, Rhine gravel, Quartz grit, Quartz sand/Kwartzgrind (KOMO certified), Basalt, Limestone, Mixed gravel
- Certificates
- DIN EN 12620 (aggregates for concrete), DIN EN 13043 (aggregates for asphalt), DIN EN 13139 (aggregates for mortar), DIN EN 12620 (Wemb plant), KOMO Productcertificaat (quartz grit 2/8, 8/16), CO2 footprint certificate (EN 15804+A2, Geldern plant), In-house production control according to EN 12620/13043/13139 (System 2+), KOMO Productcertificaat (NEN-EN 12620), CO2 footprint according to EN 15804+A2
- Founded
- 1957
- Industries
- Road construction/civil engineering, Building construction, Gardening and landscaping, Concrete and asphalt industry, Private customers/small businesses, Road construction / civil engineering
- 01
Wet extraction of sand and gravel
- 02
Transport with conveyor belts/trucks
- 03
Crushing
- 04
Screening/classification by grain size
- 05
Washing/cleaning
- 06
Storage at the plant
- 07
Delivery with own fleet
- 08
Recultivation of the excavation areas
Natural building materials and processing methods
Rhine sand
Rhine sand 0-2 mm as paving material, play sand and building sand, 0-8 mm as building sand.
Cyclone sand
Fine-grained by-product sand 0-1 mm, e.g. for play sand.
Rhine gravel
Gravel grades for decorative gravel, drainage gravel and path material.
Quartz grit
Quartz grit from the Wemb plant (Wember White), KOMO-certified to NEN-EN 12620.
Basalt
Crushed stone for path material and decorative gravel/chippings.
Limestone
Limestone in various fractions for paving material, joint material and base course.
Mixed gravel
For building sands and as concrete gravel.
Raw gravel
Uncrushed natural gravel 0-32 mm for building sands and concrete gravel.
Frost-protection gravel
Gravel 0-32 mm for the base course/crushed stone.
Topsoil screened
Screened soil for gardening and landscaping.
Fill soil/fill sand
Soil material for base course and backfilling.
Gravel paving bedding (TL-Pflaster)
Bedding material 0-5 mm to TL-Pflaster for paving construction.
Sites on the Lower Rhine
Issum
DEHeadquarters, administration and landfill
Geldern
DEGeldern plant (gravel plant, since 1967)
- Materials
- Rhine sand, Rhine gravel, mixed gravel, raw gravel, frost-protection gravel, soils
- Crusher
- Screening plant
- Washing/cleaning system
- Conveyor belts
- Fleet (13 semi-trailer trucks, 1 3-axle truck)
Weeze-Wemb
DEWemb plant (gravel plant, since 1972), known for Wember White
- Materials
- Quartz grit, limestone, basalt, mixed gravel, soils
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Rock extraction/excavation (wet extraction of sand and gravel)Other (raw material extraction) | – | – | – | – | Sand, Gravel |
| Comminution (crushing)Forming (comminution/crushing) | – | – | – | – | Natural stone, Basalt, Limestone |
| Screening/classification into grain sizesForming (screening/classification) | – | – | – | – | Sand, Gravel, Mineral aggregate |
| Washing/cleaning (washing and cleaning systems, cyclone sand)Surface (washing/cleaning) | – | – | – | – | Sand, Gravel |
| Delivery/logistics with own fleetAssembly (transport/logistics) | – | – | 1 t (deliverable from one tonne) – 28 t payload semi-trailer truck | 1 t – 28 t | Natural building materials |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Semi-trailer truck (HGV) | – | 13 | – | – | Fleet, Lower Rhine |
| 3-axle truck | – | 1 | – | – | Fleet, Lower Rhine |
| Crusher | – | – | – | – | Geldern plant |
| Screening plant | – | – | – | – | Geldern plant |
| Washing/cleaning system | – | – | – | – | Geldern plant |
| Conveyor belts/transport equipment | – | – | – | – | Geldern plant |
Additional services
Certified product quality
The in-house production control is certified by Güteschutz Beton (Notified Body 0793) according to DIN EN 12620, 13043 and 13139; for quartz grit from the Wemb plant there is a KOMO product certificate according to NEN-EN 12620 (Kiwa). Regular third-party inspection reports (DIN EN, Alkali Directive, play sand) and declarations of performance under the EU Construction Products Regulation document the product quality.
| Evidence | Geldern | Weeze-Wemb |
|---|---|---|
| In-house production control according to EN 12620/13043/13139 (System 2+) | ||
| KOMO Productcertificaat (NEN-EN 12620) | ||
| CO2 footprint according to EN 15804+A2 |
Company history
- 1957
Foundation of the company in Twisteden
- 1967
Development of the Geldern site
- 1972
Development of the Weeze-Wemb site
- 2018
End of quartz grit production in Wemb according to KOMO/site information (until 2018)