The NEUE HERBOLD series cascade sifter (zig-zag sifter) is utilized for the separation of various types of materials for example; materials that must be separated for environmental reasons, separation for better quality or separation for further processing.
Material separation with the cascade sifter function is as follows:
The input material is “agitated“ through its own weight on the angled walls in a upward direction. At each individual bend on the sifter wall the material must pass through the air current for it to reach the next level. The input material moves in a vertical direction to the air current which created a diagonal air flow.