... structure, easy maintenance. Circular Vibratory Screening Equipment Being high efficient sieving equipment, it is wildly used in mining, coal ... I. Main Parts of Mengfan circular vibrating screen Sieving box, sieving screen, vibrating exciter, spring, support frame, etc ... maintenance and safety operation2. strong exciting force, high sieving efficiency3. low noise4. firmness, durability III. Working ...