De Sutter Frères plans to run a new sifting step at its Biville-la-Rivière, Normandy plant in France, where it manufactures boards from flax fibers, to cut the share of stones, seeds, and minerals in its raw material stream and reduce saw wear and coating stains linked to oil-containing seeds, Dieffenbacher Group said, which supplied the sifting technology.
The flax-fiber boards are used as heat-insulating and sound-insulating panels in building components, including doors and partitions.
The new sifting setup includes an EVOsifter P with a zigzag sifter, installed and commissioned in under three months at the Normandy plant. The system separates incoming material into three fractions, acceptable material, coarse material, and foreign material.
Geometrically optimized zigzag-shaped internals create multiple sifting stages intended to keep separation accuracy consistent across different input density, thickness, and sinking speed, while removing contaminants with minimal loss of acceptable material. An automatic cleaning unit is designed to reduce screen deck blockages, lowering the need for manual cleaning and keeping sifting efficiency and reliability stable during operation.