It is a very useful machine to separate seeds or grains of same size but different in weight.


Usually seeds or grains do not develop in a uniform manner and hence some seeds are light and some heavy in weight. Non-uniform developed seeds do not germinate properly and thereby reduces the output of the farm.


The gravity separator separates such seeds into three fractions, uniformly heavy seed, rejects seeds and moderately developed seeds. The machine blows air through a mass of seed traveling from one end of the deck to another. The deck, a wire mesh bed vibrates the seed and causes stratification of seed into light, medium and heavy material.