It’s used in the aspiration systems of the plants. Generally it collects the dust of grain, seperates dust from the air, locted in the aspiration system of clenching ma¬chines. Dust is taken by aspiration, sepa¬rated by cyclone from the air. Used after air channels and before filter or central dust cyclone in wheat cleaning units. By preventing foreign heavy materials in the air from passing to the filter or central cyclone, it makes the filter or cyclone run more effectively and prevents possible punctures at the filter.