
Swiss family mill for baking flours, speciality flours and compound feed in Flums

Grüninger Mühlen
Flums (Mühle Dorf) · Flums (Mühle Bahn) · Flums (Feed Mill)New on Amplifa
About Grüninger Mühlen
Grüninger Mühlen is a family business founded in 1936 by Wilhelm Grüninger, headquartered in Flums in the Swiss canton of St. Gallen. At three sites, the company mills grain into baking flours, flour blends and specialities as well as compound feed for agriculture. At Mühle Bahn, a roller mill commissioned in 2010 for soft wheat, up to 120 t of bread grain is processed daily; Mühle Dorf, with up to 50 t/day, produces mainly flour blends, specialities with seeds as well as rye and spelt flours. The feed mill, built alongside the railway line, produces up to 200 t of compound feed per day, including computer-supported individual recipes and on-farm consulting. Packaging is carried out by a fully automatic bagging line with labelling, palletising and wrapping. Quality controls accompany the process from goods receipt to delivery, guided by the guidelines of the Swiss Feed Production Standard (SFPS).
- Site
- Flums
- Processes
- Milling / bread grain milling (roller mill), Production of flour blends and specialities with seeds, Compound feed production (feed mill), Bag filling, sewing, labelling, palletising, wrapping (fully automatic bagging line), Custom recipe production to customer requirements (computer-supported recipes), Quality assurance/testing, Custom recipes to customer requirements, On-farm consulting (feed)
- Materials
- Soft wheat, Bread grain, Rye, Spelt, Seeds (for flour specialities), Mineral feed, Seeds
- Certificates
- Swiss Feed Production Standard (SFPS)
- Founded
- 1936
- Industries
- Food (baking flours), Animal feed/compound feed, Agriculture
- 01
Goods receipt of raw materials
- 02
Storage
- 03
Milling or compound feed production
- 04
In-process quality assurance
- 05
Custom recipe production to customer requirements
- 06
Fully automatic bagging, palletising and wrapping
- 07
Delivery
Grain and Raw Materials
Soft wheat
Basic raw material of the soft wheat mill Mühle Bahn for baking flours with 120 t daily milling capacity.
Bread grain
Milled into bread grain flours at Mühle Bahn.
Rye
Part of the rye flour is traditionally produced at Mühle Dorf.
Spelt
Part of the spelt flour is still produced at Mühle Dorf.
Seeds
Used for flour specialities and flour blends at Mühle Dorf.
Mineral feed
Product range of the feed mill for agricultural animal feeding.
Sites
Flums – Mühle Dorf
CHGrain mill for speciality flours, original site
- Materials
- Flour blends, specialities with seeds, rye and spelt flours
- Cell system with state-of-the-art technology
- Process control system «Mercury» (first mill in the world to deploy it)
Flums – Mühle Bahn
CHSoft wheat mill (roller mill), commissioned in 2010
- Materials
- Soft wheat, bread grain
- Automated milling system with 24 h autonomous operation
- Quality sensors and monitoring elements with automatic process correction
Flums – Feed Mill
CHCompound feed production, built after 1974 alongside the railway line
- Materials
- Feed raw materials, mineral feed
- Computer-supported recipe management
- Quality assurance along the entire production process
Products




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Milling / bread grain milling (roller mill)Food processing (not a classic manufacturing process) | – | – | – | 120 t/day milling capacity | Soft wheat, Bread grain |
| Production of flour blends and specialities with seedsFood processing | – | – | – | 50 t/day | Rye, Spelt, Seeds |
| Compound feed production (feed mill)Food/feed processing | – | – | – | 200 t/day | Feed raw materials |
| Bag filling, sewing, labelling, palletising, wrapping (fully automatic bagging line)Packaging | – | – | – | – | – |
| Custom recipe production to customer requirements (computer-supported recipes)Recipe/plant control | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mill facility (roller mill) with automated milling system, 24 h autonomous operation | – | 1 | Milling capacity 120 t bread grain/day | 2010 | Flums Bahn |
| Grain mill (cell system) with process control system «Mercury» | Mercury (process control system) | 1 | up to 50 t grain/day | – | Flums Dorf |
| Feed mill (compound feed production) | – | 1 | Production capacity up to 200 t/day | – | Flums Bahn |
| Bagging line (fully automatic: hanging, filling, sewing, labelling, palletising, wrapping) | – | – | – | – | Flums |
Additional services
Quality
Quality assurance extends from goods receipt through storage and production to delivery; quality sensors and monitoring elements continuously analyse product characteristics and automatically correct the running process. Feed production follows the guidelines of the Swiss Feed Production Standard (SFPS).
| Evidence | Flums |
|---|---|
| Swiss Feed Production Standard (SFPS) |
History
- 1936
Company founded by Wilhelm Grüninger in Flums.
- 1974
A major fire destroyed part of the mill buildings; the grain mill was rebuilt and the feed mill subsequently newly erected along the railway line.
- 2010
Commissioning of the new mill facility Mühle Bahn with 120 t daily milling capacity for bread grain.
- 2026
Participation in Südback Stuttgart, Hall 5, Stand B68 (24–27.10.2026).