Amplitude of vibrating screen is adjusted by vibration exciter of eccentric shaft and eccentric block. It has long screening line of materials and various screening specifications, featuring reliable structure, strong exciting force, high screening efficiency, being sturdy and durable, convenient maintenance and safe operation, etc. It is mainly applied in material screening in mines, construction materials, thermoelectricity, chemical industry and other industries. As for the structure of screen mesh, there are woven screen mesh, rubber sieve plate and perforated sieve plate available.

High frequency screen (high quality screen) has high efficiency, small amplitude and high screening frequency. The working principle of high frequency screen (high quality screen) is different from that of common screening equipment: due to adoption of high frequency, tension on the surface of ore pulp and high-speed vibration of fine materials on the screen surface are damaged, the isolation effect of dense-intensity (large specific gravity) valuable minerals is enhanced, and the probability of contact between materials smaller than the separation size and screen apertures. Thus, fine separation conditions are created, making materials smaller than the separation size, especially the large-specific gravity material granules and ore pulp get through the screen aperture and become undersize products.

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