The air separator SAP, is used in the cleaning of the various cereal grains to separate grain from light impurities. Dust, glume, light seeds, etc. are easily removed. The grain inputted into the air separator’s hopper is distributed on the whole width of the machine and passed by a counter-current air flow that allows for the suction of the lighter particles. Beyond being used as a stand-alone machine, it can be combined to other cleaning machines such as the vibro-separator VIBROBLOCK model and the intensive scourer PO model.