Lab Vibrating Screen The alternative to manual hand sieves sieving, reducing operator labor intensity,the electrical control of an electronic counting controller,so that screening test is expected to be accurate within the screening times.This product is the only designated former Ministry of Geology and Mineral production,the implementation of industry standards.The machine can use 200 mm and 300 mm diameter of standard sieve,Sieve can use 4 mesh to 400 mesh