... used in foodstuff plants. The De-stoner is able to remove stones from grains, wheat, rice, beans, corns ... s no power and it is easy to operate and to provide maintenance to it. The wind magnitude and wind ... 7-9. Therefore, this machine is able to maintain stone-removing effect even the amount of ... material fluctuates. It can be used to remove the mixed stones in foodstuffs , grains , grease ...