Fritsch® bottom sieve 1 mm trapezoidal perforation stainless steel

The bottom sieves are made of stainless trapezoidal or round perforated plate. The larger the perforation is selected, the greater the throughput and the lower the retention time and wear. Bottom sieves with trapezoidal perforations provide additional size reduction through increased shearing action. Bottom sieves with round perforations are recommended for size reduction of brittle materials and materials of medium fineness with narrow grain width band.