Extraction and processing of Crailsheim shell limestone into grit, chippings, sands, stones and ready-mixed concrete
Heumann Steinbruch und Schotterwerk Inh. Ekkehard Schumm e.K.
Heldenmühle 5, 74564 CrailsheimNew on Amplifa
About us
Heumann Steinbruch und Schotterwerk in Crailsheim-Satteldorf is an owner-managed family business that has been extracting and processing Crailsheim shell limestone since 1927. The value chain includes overburden removal, drilling and blasting, crushing and processing into grit (2–32 mm), chippings (32–56 mm), sand and grit mixtures, crushed sand, cobbles and squared and layer stones in various layer heights. In addition, limestone flour (agricultural lime with over 75 % lime content) for agriculture as well as natural sand. Since 2023, the sister technology company Schumm Beton has complemented the portfolio with ready-mixed concrete from C12/15 to C35/45 from its own concrete mixing plant, including small quantities from 200 l for self-collection. The products go to construction companies, trades and private customers in road, path and civil engineering, landscaping, and to asphalt and concrete mixing plants.
- Site
- Crailsheim
- Processes
- Drilling & blasting, Crushing and processing (chippings/grit plant), Transport and loading, Grit / chippings / mixtures (2–32 mm, 32–56 mm), Sands (crushed sand, cable sand, natural sand), Cobbles (approx. 60–120 mm, approx. 60–250 mm), Squared & layer stones (all layer heights), Agricultural lime / limestone flour (over 75 % lime)
- Materials
- Crailsheim shell limestone, Limestone flour (agricultural lime, >75 % lime), Natural sand, Concrete C12/15 to C35/45, Mineral concrete II (frost-proof), Limestone flour (agricultural lime), Ready-mixed concrete
- Certificates
- Quality seal for chippings loading
- Founded
- 1927
- Industries
- Road, path and civil engineering, Concrete construction, Garden and landscaping, Agriculture, Asphalt and concrete mixing plants, Trades
- 01
Overburden removal
- 02
Drilling & blasting
- 03
Crushing and processing
- 04
Loading
- 05
Transport (minimum order quantity 5 t)
Materials & Processes
Crailsheim shell limestone
Some 240 million-year-old, dense and homogeneous limestone as a raw material for grit, chippings, sands, cobbles and stones.
Limestone flour (agricultural lime)
Fine flour with over 75 % lime content for soil improvement and pH regulation in agriculture.
Natural sand
Screened natural sand 0/2 for bedding and paving sand as well as concrete mixes.
Ready-mixed concrete
Concrete mix designs from our own mixing plant, also as small quantities from 200 l for self-collection.
Locations
Crailsheim-Satteldorf
DEQuarry, chippings plant and concrete plant (headquarters Heldenmühle)
- Lot size
- Small quantities from 200 l (concrete); delivery from 5 t
- Materials
- Shell limestone, natural sand, concrete
- Grit plant (1977)
- Grit plant (1990)
- Concrete mixing plant (2023)
- Truck fleet
Construction Materials
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Drilling & blastingQuarry/extraction | – | – | – | – | Shell limestone |
| Crushing and processing (chippings/grit plant)Processing | – | – | – | – | Shell limestone |
| Transport and loadingLogistics | – | – | – | – | Shell limestone |
| Grit / chippings / mixtures (2–32 mm, 32–56 mm)Processing | – | – | – | – | Shell limestone |
| Sands (crushed sand, cable sand, natural sand)Processing | – | – | – | – | Shell limestone, Natural sand |
| Cobbles (approx. 60–120 mm, approx. 60–250 mm)Processing | – | – | – | – | Shell limestone |
| Squared & layer stones (all layer heights)Quarry/extraction | – | – | – | – | Shell limestone |
| Agricultural lime / limestone flour (over 75 % lime)Processing | – | – | – | – | Shell limestone, Limestone |
| Ready-mixed concrete C12/15 to C35/45 (concrete mixing plant, small quantities from 200 l)Casting | – | – | 200 l | – | Concrete, Shell limestone aggregate |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Cable excavator | Willhack UR 5 | 1 | – | 1954 | Crailsheim-Satteldorf |
| Hydraulic excavator | O&K RH25 | 1 | – | 1967 | Crailsheim-Satteldorf |
| Concrete mixing plant | – | 1 | – | 2023 | Crailsheim-Satteldorf |
| Grit plant | – | 2 | – | 1977/1990 | Crailsheim-Satteldorf |
Additional services
Reference customers
Quality
The products are processed to standard grain sizes (Sts/FSS per TL SoB-StB, mineral concrete II frost-proof); a quality seal documents the loading. Material certifications are not documented.
| Evidence | Crailsheim-Satteldorf |
|---|---|
| Quality seal for chippings loading |
History
- 1927
Johann Heumann acquires the Heldenmühle (grain mill with quarry and agriculture), 2 employees
- 1930
Foundation stone of the chippings plant, purchase of the first truck
- 1933
Agriculture passes to daughter Meta and Martin Schumm
- 1935
Growth to 40 employees
- 1954
First cable excavator UR 5 (Willhack), annual production approx. 18,000 t
- 1955
Grain mill passes to daughter Hilde and Hermann Bartels
- 1967
First hydraulic excavator O&K RH25, production rises to 220,000 t
- 1976
Hermann Schumm takes over the quarry and chippings plant
- 1977
Construction of a new chippings and grit plant
- 1984
Annual production nearly doubled to approx. 500,000 t
- 1990
Commissioning of another modern grit plant
- 2004
Ekkehard Schumm takes over the chippings plant
- 2021
Alexander and Fabian Schumm join as managing directors
- 2022
Founding of Schumm GmbH by Alexander and Fabian Schumm
- 2023
Founding of the Schumm concrete plant, expansion to include ready-mixed concrete