Air Classifier Manufacturers

Modern air classifiers are used to separate the protein fraction from the starch granules of ground cereals and legumes, based on difference of size, shape, and density. The basic elements in an air classifier consist of a rotating plate and air circulation fan, installed in a special chamber. The basic forces acting on the particles in the air classifier are the centrifugal, the gravity and the drag force. The air sucked by the fan, removes the fine particles from the plates and separates them from the coarse particles. The selection of an air classifier for a particular application is dependent primarily on the separation efficiency required and the money and facility space that can be committed. The least expensive equipment is a vertical column that requires a minimum of space. The zigzag air classifier is taller than the vertical column unit and has internal veins that add to the cost. The horizontal air classifier can process materials having larger particle size than a zigzag unit; however it requires more amount of floor space.