Drum screening machine, drum screen sand machine, roller sand screening machine Introduction 
 Drum screening machine, also known as the stone drum screening machine, drum screening machine into five parts by the hexagonal drum, rack, funnel, reducer, motor. Broken stone into the drum, on the one hand, with the drum rotation to be screened, screening materials rely on the centrifugal force of the drum rotation and the role of the jig. The one hand, a large particle size of the stone along the slope of the drum forward flow through the sieve of mesh size gradually to sieve out. After falling into the small stone to sieve out the respective funnel, and then sent to the finished pile by the labor movement out of or artesian. 

 Drum screening machine, the drum screening machine of its simple structure, stable operation, with sealed, non-polluting, low noise, fast changer, fine grading, sorting large proportion of high-yield, accurate sorting, low failure rate. advantages of easy maintenance, stone drum screen is especially suitable for the classification of the aggregate field. 

 Drum screening machine, drum screen sand machine, roller sand screening machine works 
 Drum screening machine to exercise reasonable rotation gearbox reducer device center separation tube, the center separation tube is composed of a number of circular ring flat steel ring mesh center separation tube is installed and the ground plane was tilted state, work in materials from the top of the center separation tube into the tube network, separation of fine material composed of top-down through the circle of flat steel mesh interval in the process of separation of cylinder rotation, and coarse material discharged from the bottom of the separation tube into the grinder. Device has a plate automatic ballast cleaning institutions, during the separation process, through the clear screen agencies and the relative motion of the sieve, sieve ballast cleaning agencies continuous "comb" always kept clean throughout the process so that the sieve not mesh blockage and affect the screening efficiency.