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Rotation of Unbalanced top weight causes vibration in Horizontal plane whereas the rotation of lower weight causes tilt & vibrations in vertical plane. By changing their lead angle,
various spiral screening patterns are obtained to suit different application.
Anti-Blinding Devices:
Ball Tray Anti-Blinding Device: Ball tray utilizes the multi-plane inertial vibration of the screener and bouncing elastomeric balls to prevent screen blinding.
The device consists of two screens spaced sufficiently apart to allow captive elastomeric balls to bounce between the upper "operating" screen and the lower coarse-mesh "ball
screen" for the purpose of dislodging near-size, dry materials lodged in the apertures of the upper screen.
Ring Tray Screen, Anti-Blinding Device Screen Rings are effective at preventing fibrous, stringy and sticky materials from blinding the screen.
Multi-plane inertial vibration of the screener causes plastic rings to move continuously across a perforated stainless steel plate, shearing fibers and scraping away gummy
materials. Because they are hollow, the rings promote product flow over the entire screen surface, maximizing screening efficiency.
Advantages :
 Low power
consumption
Varied range of application
High processing rate per unit area of
screen
Accurate separation
Minimum screen building
Screening up to 200 mesh
Ball tray for anti blinding
Multi-deck arrangements upto Seven decks.
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Applications :
Food
Industry
Chemical industry
Pharmaceuticals
Ceramics
Plastics
Abrasives
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Factors Determine Screening Capacity :
Material Size, Bulk density of the material Nature of material, Moisture contamination, flow in temperature, type of feeding, etc.,
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