It is designed to enrich and classify semolina in flour and semolina mills.
The flow rate of product is adjusted by means of a gate, which provides a perfect distribution of product along all entire width of sieves. The optimum vacuum influence is obtained on the entire surface of sifter by means of aerodynamic air channel and air regulating valves. Bran and similar light materials are kept in suspension due to vacuum influence and transported to discharging channel and collecting box fitted below. The product (semolina) is separated from bran to be classified by means of sieves in accordance with granules.