Linear vibrating sifter is used to separate materials into various particle sizes for further processing.Basically, professional large capacity mining linear vibrating screen manufacture consists of the screen box, supporting device, driving unit,vibration isolation and etc. It has two operational driving modes: dual-vibration mode (light duty) and dual-vibration exciter mode(heavy duty).

The motion path of screen box is rectilinear, it is called linear vibrating screen. based on the different vibration, it is divided into two types, one is shaft-eccentric type rectilinear sifter and the other is block-eccentric type rectilinear vibrating sifter, and the numbers of layer could be 1-4.

Two-motor synchronous device generates reverse exciting force,forcing the screen box do the vertical movement with the sieve. When two vibrating motors that are longitudinally mounted on the screen box actuate the relative rotation, so that the material on the screen deck surface jumps and moves to the outlet under the exciting force. The size of materials that are smaller than the opening of screen deck, fall to the next layer through the deck. Then they go out from the outlet after continuous jump. After this process, different levels of material can be got, and the classification operation of material is finished.

Working Principle

The vibrating source is also from vibrating motor. There are two motors to be fixed on the both side of screening box(or under the screening box) to corotate on the contrary direction. In the process of rotating, when two motors synchronous reversely rotate, the eccentric blocks of motor will emerge a kind of centrifugal force, which can be transmitted to the screening box and make the machine run by linear direction. Then the material on the mesh will be vibrated forward and screened.

There is an angle of inclination two motor axis's relative to screen deck, under the influence of resultant force of exciter force and materials self weight, materials are threw up to make saltatory and linear movement forward on the screen deck in order to screen and grade the materials. By choosing the suitable mesh, the screening target is realized.