The tractor powered type feed grinders are powered by tractors end shaft and tied three points to tractors.Ginders are designed as hammer systems, in which the hammers are connected to disks to one point. While running with high speed, due to centrifugal force; hammers get open and break animals feed. They should be dry. Feeds which are contain oil and water are not grinded productive. You can also break all kinds of grains with this machine easily (barley, wheat, corn,corn cob, rye, broom corn, oat, cotton seed, also must be dry clover, fye, straw and sunflower head etc.) and provide feeds for your animals.