The primary method of seed cleaning is the air-screen separator. It uses a combination of air, gravity, and screens to separate seed based on size, shape, and density. These widely-use units come in a variety of models with two to eight vibrating screens. In all cases, the cleaning principles are the same. The grains are fed into the hopper where they are evenly distributed by a feed roller and transferred through a controlled gate on the top sieve. In the process the grains are subjected to primary aspiration by the use of air trunk which drains off chaff, straw, dust or deceased grains. Then the material is passed through sieve layer for separation according to their width and thickness. After the separation, the graded material is subjected to air sifter and aspiration chamber where remaining light particles are sucked off by a strong upward draught of air. The graded material and the impurities are automatically discharged in separate chutes.
These machines have two independent dynamically balanced aspirator fans; one at raw seed intake end and another at cleaned seed outlet end. The placement of the fan and the large screen area makes the ideal for handling rough material. These machines provide accurate and efficient cleaning of any type of grain.
Seed Cleaner
Salient Features - Wide range of application.
- Robust machine of all steel construction.
- Two independent dynamically balanced aspirator fans are provided separately one at raw seed intake end and another at cleaned seed outlet end.
- Feed hopper equipped with feed control gate.
- Specially designed rubber balls to check sieve perforation clogging.
- Stepless variable air controls.
- Air Chamber, Sieve Deck assembly and spouts are self cleaning type.
- Belt guard provided.
- Easily changeable sieves with large surface screening area. Sieve reciprocating provided by means of eccentric and connecting rods.
Optional Accessories Available
Dust Collector, Air Trunk, Surge Bin, Feeding Elevator.
We also plan, design, manufacture, supply and erect seed processing, grain / spice / pulses cleaning and handling plants on turn-key basis. Due to constant process of research & development, all designs and specifications are subject to change without prior notice. Capacities mentioned are based on wheat.
Operation
Seeds/Grains are fed into a feed hopper where they are evenly distributed and drop through a controlled gate on three sieve layers. Before falling on each Screen layer, grains are subjected to primary aspiration which drains off chaff, straw, dust, deceased grains etc.
Material is then passed through sieve sections for separation according to width and thickness. Sieve perforations are kept cleaned by specially designed rubber balls. After passing through screens, cleaned material again passes through air sifter and aspiration where remaining light particles are sucked off by a strong upward draught of air. Final product and impurities are collected separately through discharge chutes.
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