Destoner is suitable for removing stones and otherimpurities from grains. The grains are separated based on their weight. Thismachine can be used for multiple grains by adjusting the air flow and theoperating angle of the destoning deck.Grader is used for grading the grains based on their sizes.There are two removable sieves attached to the grader. The sizes of the sievesare finialised based on the grains size and profile.An aspirator is attached with this machine whichis used for removing light weight impurities like dusk, husk and leaves. Theair flow rate of the aspirator can be varied by adjusting the air inlet gate.