• Short material transport distances and ample silo capacity
• Integration of the existing jaw crusher into the new plant design
  
• Successful project completion despite the COVID-19 pandemic and difficulties in sourcing steel due to the war in Ukraine
  

For Vigier, a new gravel processing plant was built at the Flumenthal/Attiswil site to process the round gravel extracted from the Hobühl gravel pit. The custom-designed plant combines multi-stage washing, screening, and crushing processes with flexible material handling and ample silo capacity.

The raw material is washed, graded, and further processed depending on grain size. Coarser fractions are crushed and re-graded. This results in five round gravel and six crushed grain sizes, as well as sand and slurry.

The design focused on short material transport distances, low wear, and efficient energy use. The new plant achieves approximately five times the output of the previous plant with only slightly higher electricity consumption.
The gravel plant, which is over 90 meters long, 8 meters wide, and 30 meters high, began operations in June 2024.

• Ellipse screening machine
• Linear screening machine
• Circular Vibrating Screen
• Chamber Filter Press KFP-A
• Hydrocyclones
• Conveyor Belts
• Flocculant Station
• Slurry Transfer Pump
• Tumble Washer