The vibration screen is a kind of new many layers,efficient vibration screen,and it moves like a circle.It adjusts the amplitude by tube shape violent vibration screen of eccentric shaft and eccentric blocks,it has long flowing line,many screening specifications,is a special designed for grading and screening materialks in the fllowing fields:minerals,upgrade,building materialsand chemical industry smelting and so on.It has features fo reasonable structure,strong violent vibration force,high screening efficiency,small vibrating noises,firm and durable construction,convenlent, maintenance and safe operation.This series vibrating screen has features of adjusted strength,long flowing line,many layes screening classification,clearly every size screen,high screening efficiency.