Gs series drum sieve can be a variety of powder, granular materials screening, one can carry out a variety of specifications of screening, shaking out the high-yield, low noise, professional used in mining, construction, coal, metallurgy, mining and other sectors as product grading. The trommel processing capacity, high screening efficiency, technology has reasonable parameters, high structural strength, reliable operation, low noise, easy maintenance and so on. Ore particles can, wood particles, glass particles, quartz particles, and other materials such as screening. Gs series drum screen is mainly composed of a motor, reducer, roller device, a frame, a sealing cover, inlet and outlet. Drum tilt device mounted on the rack. Motor through reducer and roller device connected through the coupling, the drive roller rotates around its axis. When the material enters the cylinder device, due to tilting and rotating drum device, so that the screen material turning and rolling, so that the qualified materials (sieve products) is discharged through a discharge port at the bottom of the drum rear end, the unqualified materials (sieve products) is discharged through a discharge roller tail mouth. Because the material inside the drum turning, rolling, so that the material stuck in the sieve can be ejected, to prevent the mesh plug.