Ourф400mm-ф2500mm -typed series sifters made of quality stainless steal can be installed four layers of sifters at most . Their electromotor can vibrate steadily and produce great vibration strength . The flexible net frames are easy to stretch completely and replace in a very short time so that their efficiency is raised greatly . Therefore , we have gained the latest national patent of 2005 , No. 200520032559.9? because of their advantages of quick replacement , light weight and flexibility . At present , we are applying for European Patent IPC . Of these types the molded ф400mm-ф1000mm series vibration bodies with trays have amounted to world standard in quality for their long life-span and high filtrationefficiency . So they can meet the needs ofdifferent industries