The sifter splits the incoming material into two fractions, acceptable and rejects this including high density contaminants and wood particles of undesirable geometry (needles, etc). 85% of the air used is circulated and the remaining volume is cleaned before vented into atmosphere.
The product enters the suspension chamber (of the sifter) via a rotary valve and a central tube. Agitator arms distribute the material uniformly over the perforated plate through which air is drawn. Different grades of separation are achieved by varying the air velocity. The heavy material is moved to the outside of the sifter and leaves the suspension chamber via a rotary valve. The lighter material is suspended in the air stream and separated from the air in high efficiency cyclones.

• Exact separation according to particle thickness and complete thickness control 
• Continuous and consistent separation regardless of stop/start operation and variable material flow
• Excellent removal of heavy contaminants
• Maximal accuracy of accepted particles
• High capacity in one unit
• Low maintenance costs due to pneumatic/mechanical cleaning system
• Energy and steel structure savings due to cyclone type HURRITEC
• Small floor space required due to flexible plant layout
• Fast replacement of wear parts