FSFG Square Plansifter is the new product developed by our company's engineers. On the basis of the foreign and internal mills, main body of the machine is made of high quality steel sheet by welding. It is mainly used for extracting flour from ground stock, then to sift and to classify. This machine can be used as the checking sieve and also be used in stock sifting and classification in chemical, medical and plastic industries. The Square Plansifter is produced by high-intensity alloy steel, it is of compact structures, sturdy and safe, airtight and reliable, smooth operation, easy to install and operate, high efficiency of classifying. The research on this product by engineers last for two years, with capital about millions RMB, this product has gained national patent, the succes of this research will bring revolutionary change for the sifting of milling and other fields, and it solves the series of problems which cannot be solved with wooden screen. at present, it occupies the leading position and has world wide advanced level abroad and at home, it is the successor to wooden frame and it supplies a gap for screens of the same kind, which is the direction of sifting equipments, according to two year tracked research and expert advice.