Introduction Tumbler sieve is designed to meet the high output and precision screening of manufacturers and special design of an efficient screening machine. The simplest screening is a binocular fixation and hands screening, swinging screening machine is the simulation of this movement. At present, it is the most effective simulated artificial sieving movement effective principle. It meets all the fine and ultrafine particulate materials, especially for hard process materials. Functional principle The residence time of each product can be adjusted by the radial direction and the tangential angle of the swinging screen. Then, established the level and throwing three-dimensional tumbling motion. From the center to the outer edge in the sieve surface is uniformly dispersed, to in a spiral motion to the axial propagation. Thus fine particles complete the whole screening process. Horizontal and vertical acceleration with the movement of the material increased, and close to the aperture size of particles subsequently successfully separated, larger particles were transported to the exit, the outlet is controlled by an adjustable guide device, which is another factor that controls the retention time of the material. The process is repeated among each layer of screen. Advantages Greatly improving the screening efficiency Shorten screening time