The Classifier Mill System uses air to carry the product through the milling and classifying process. The product is fed by gravity through a rotary airlock (rotary valve) to the product injector. Product is blown into the impact mill chamber via the injector. The classifying which controls the particle size is done in the impactgrinding mill chamber. From the grinding mill chamber, the fine powder is carried out by the air leaving the mill. The air and product is separated in a filter unit – bag house to ensure recovery of all milled product.