It is a static machine studied to eliminate by means of air the lightest impurities such as seeds, withered grains, straws and so on with the utmost efficiency, minimum encumbrance, reduced assembling and working costs.
The cereal, which reaches through the inlet spout, the circular body of the machine, is distributed uniformly to the aspirating tube thanks to a rotative body. In the aspirating tube the external part of the product is eliminated and its lightest parts are selected. The cleaned heavy fragments get out the machine through a valve placed in the bottom side of the machine. The ligh fragments are separated from air in a specia device to decant by means of a delaying valve. The air goes from recycling system to the aspirating tube through a radial fan.