Abstract: An agricultural feed grinder and mixer having a hammermill means which grinds various types of grain and other feed and combines the ground crop material with supplemental feed and thoroughly mixes the combination and discharges it to other containers or storage areas. The machine has a generally horizontal feed screw auger which receives the material from the hammermill and from the supplemental feed hopper and discharges it into a mixing tank. Power is transmitted from a power source, such as a tractor through a power take-off shaft and through the feed screw auger where the power is delivered to a mixing auger in the mixing tank.