Final grain cleaning by specific weight — precise separation in grain cleaning lines
A vibrating table (gravity separator) is a high-precision machine for separating grain and seeds by specific weight. It completes the grain-cleaning cycle where sieves and trieurs are no longer effective: it separates fractions with minimal differences in density.
In the grain cleaning line, the vibrating table is installed at the final stage — after preliminary cleaning and grading. It is here that shriveled, hollow, damaged, and immature grains are removed, which cannot be selected by other methods.
The vibrating table operates on a combination of upward airflow and controlled deck vibration. Air supplied through the perforated working surface brings the grain layer into a fluidized state — the particles begin to stratify strictly by density.
Heavy, dense grains descend to the surface of the deck and, under the action of the eccentric motion, move in one direction. Light, hollow, and defective fractions rise upward and are discharged in the opposite direction — separation occurs continuously and without mixing of the fractions.
The operator can independently adjust the vibration speed, the deck tilt angle along two axes, the air volume, and the product feed rate. This flexibility makes it possible to configure the vibration table for any crop — wheat, sunflower, corn, rapeseed, and other grain crops.
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