The versatile of air separation sifter function is to remove lightweight “un-pickable” items such as paper, plastic and foil from the material stream. The input air creates a high velocity air stream through which the falling material has to travel. The lighter material fractions are blown or separated from the falling material and are captured by the extraction hood and conveyed away. The heavier material is unaffected by the incoming air stream and falls through the air stream onto the conveyor below.
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