All steel welded construction, compact & rugged in design, very low power consumption, rectangular vibrating deck, silent and smooth operation, having least vibrations thereby ensuring smooth operation, dynamically balanced fan, total recovery of grains/seeds without wastage during de-stoning operation, the machine is pre-wired from electric motor to panel, the unit is supplied complete with electric motor and panel, electronic timer with solenoid valve provided for discharge of stones depending on the commodity to be de-stoned.