
Manufacture of concrete products such as paving stones, wall systems and slot drains, as well as processing of bulk materials

Johann Wintermantel GmbH & Co. KG
Donaueschingen (Headquarters) · Geisingen · Emmingen-Liptingen · Reiselfingen · GrimmelshofenNew on Amplifa
About Wintermantel
Johann Wintermantel GmbH & Co. KG, headquartered in Donaueschingen, is part of the Meichle + Mohr group of companies and manufactures concrete products for landscaping, building construction, civil engineering and road construction. The product range includes paving stones according to DIN EN 1338, 1339 and 1340, concrete slabs, wall systems, garden elements and slot drain systems for line drainage. All products are manufactured at the company's own plant in Donaueschingen, whose new paving stone plant went into operation in 2023. The basis is own raw materials such as gravel, sand, chippings, crushed sand and lime chippings from dry and wet extraction in own pits; surplus material is crushed using crushers and mills. In addition, the company operates recycling sites, where construction rubble is processed with mobile crushing plants into RC frost-protection mixes and RC sands, as well as logistics services with its own fleet. Quality is safeguarded in the in-house laboratory through internal and external monitoring.
- Site
- Donaueschingen
- Processes
- Bulk materials (gravel, sand, chippings) - extraction and processing, Concrete product manufacturing (paving stones according to DIN EN 1338, 1339, 1340), Paving stone plant (production in Donaueschingen), Concrete delivery with truck mixers and concrete pump vehicles, Recycling of construction rubble into RC frost-protection mixes and RC sand, Slot drain systems for line drainage, Wall systems and garden elements made of concrete, Construction rubble transport and logistics (semi-trailers, tandem trucks, crane trucks)
- Materials
- Gravel, Sand, Chippings, Crushed sand, Lime chippings, Clay, Concrete, Ready-mixed concrete
- Certificates
- DIN EN ISO 50001 (energy management system, for all plants of the group of, Environmental certificate 'Blauer Anker' (Blue Anchor) (Meichle + Mohr Marina, DIN EN 1338 / 1339 / 1340 (product standards for concrete products), Internal and external monitoring by laboratory
- Employees
- over 350 (entire
- Industries
- Construction industry / construction suppliers, Landscaping and gardening, Building construction, civil engineering and road construction, Private and commercial customers (open space design)
- 01
Raw material extraction (gravel, sand, clay) in land gravel pits
- 02
Raw material processing in gravel plants (washing, particle size separation,
- 03
Recycling of construction rubble into RC materials
- 04
Concrete product manufacturing at the paving stone plant in Donaueschingen
- 05
Laboratory monitoring (internal and external monitoring)
- 06
Logistics and delivery with own fleet
Materials & Processes
Concrete
Material for paving stones, slabs, wall systems, garden elements and slot drains made from own raw materials.
Gravel / Sand / Chippings / Crushed sand
Own bulk materials as aggregates for concrete production as well as building materials for building construction and civil engineering.
Lime chippings
Building material for courtyard and garden construction in the product range.
Clay
Raw material used, among other things, for pond sealing.
RC frost-protection mix / RC sand
Recycled material from construction rubble for sub-bases, backfills and driveway entrances.
Sites

Donaueschingen
DEHeadquarters, concrete stone plant/paving stone plant, bulk materials
- Materials
- Concrete, gravel, sand, chippings, lime chippings, clay
- Paving stone plant (2023)
- Laboratory and mixing technology
- Truck mixers with belt or concrete pump
- Concrete pump vehicles
- Semi-trailers
- Tandem trucks
- Crane trucks
Geisingen
DEBulk materials site
- Materials
- Gravel, sand, chippings
Emmingen-Liptingen
DEBulk materials site
- Materials
- Gravel, sand, chippings
Reiselfingen
DEBulk materials site
- Materials
- Gravel, sand, chippings
Grimmelshofen
DEBulk materials site
- Materials
- Gravel, sand, chippings
Products



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Bulk materials (gravel, sand, chippings) - extraction and processingEngineering | – | – | – | – | Gravel, Sand, Chippings, Crushed sand, Lime chippings, Clay |
| Concrete product manufacturing (paving stones according to DIN EN 1338, 1339, 1340)Casting | – | – | – | – | Concrete |
| Paving stone plant (production in Donaueschingen)Casting | – | – | – | – | Concrete |
| Concrete delivery with truck mixers and concrete pump vehiclesEngineering | – | – | – | – | Concrete |
| Recycling of construction rubble into RC frost-protection mixes and RC sandEngineering | – | – | – | – | Concrete/reinforced concrete rubble, Brick masonry, Natural stone, Ceramics, Asphalt demolition |
| Slot drain systems for line drainageCasting | – | – | – | – | Concrete |
| Wall systems and garden elements made of concreteCasting | – | – | – | – | Concrete |
| Construction rubble transport and logistics (semi-trailers, tandem trucks, crane trucks)Engineering | – | – | – | – | Construction rubble, Bulk materials, Concrete products |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Concrete pump vehicles | – | – | – | – | Donaueschingen |
| Truck mixers with belt or concrete pump | – | – | – | – | Donaueschingen |
| Semi-trailers for bulk materials | – | – | – | – | Donaueschingen |
| Tandem trucks | – | – | – | – | Donaueschingen |
| Crane trucks | – | – | – | – | Donaueschingen |
| Silo trucks | – | – | – | – | Singen (Adolf Birsner Spedition und Betonpumpenverleih GmbH) |
| Mobile crushing plants | – | – | – | – | Recycling sites |
| Crushers and mills (gravel processing) | – | – | – | – | Gravel plants |
| Excavators and wheel loaders (extraction) | – | – | – | – | Land gravel pits |
| Dredgers | – | – | – | – | Wet extraction |
| Paving stone plant | – | 1 | – | 2023 | Donaueschingen |
| Laboratory and mixing technology | – | – | – | – | Donaueschingen |
Additional services
Quality
All raw materials and finished concrete products are regularly monitored in the in-house laboratory; every mix is documented. In addition, external testing institutes carry out checks as part of external monitoring; the products are manufactured according to DIN EN 1338, 1339 and 1340.
| Evidence | Donaueschingen |
|---|---|
| DIN EN 1338 / 1339 / 1340 (product standards for concrete products) | |
| Internal and external monitoring by laboratory |
History
- 1924
Founding of the amalgamation of two family businesses (Meichle + Mohr group of companies)
Production of concrete products from own raw materials for over 40 years
- 1995
Meichle + Mohr acquires an interest in Adolf Birsner Spedition und Betonpumpenverleih GmbH in Singen
- 2023
Completion of the new paving stone plant in Donaueschingen, production from mid-2023; three new storage halls