Drum screen is a circular drum, rack, funnel, reducer, motor of five parts. After crushing the material into the drum, on the one hand with the rotating drum was screened by the centrifugal force of drum rotation to screening material. The slope of the material along the roller advancing and purpose through the different network mesh sieve out gradually materials, materials of different sizes, after screening out falling into their funnel, and then sent to the labor costs or the gravity finished the heap. Its structure is simple and reliable, smooth operation, with sealed, no pollution, noise, change network speed, fine grading, sorting scale, high yield, sorting accuracy, low failure rate, easy maintenance, etc., currently supported industry: ceramic filter mud, sand and gravel quarry classification, environmental protection, metallurgy, mineral processing, coal, building materials. 
 Drum sieve, fine workmanship, sturdy and durable steel frame with steel welding, funnel large volume for high-quality steel welded together. There were five funnel material. Funnel with flange connection can be made to both sides or one side of the material, easy to pull or gravity, increase production, prevent the material wear screen, delay production.