Peanut sheller machine adopts suspension casing for shelling, wind power primary selection, specific gravity secondary separation and cleaning.The peanut in shell can choose different concave sieve according to the size of peanut fruit for normal shelling operation.The moisture content of the peanut fruit to be shelled should be greater than 7.0% and less than 10%.The groundnut shelling machine adopts single-phase two-pole 2.2-3 kw, three-phase 2.2-3 kw motor (2800 rpm), or 6-8 horsepower diesel engine or 170F gasoline engine as power.