Abstract: A self-propelled bale shredder is movable over the ground, and has a self-contained power unit, a shredder section, and an operator's control cab at the forward end. The shredder includes a shredding rotor that will shred baled crop material that is lifted onto a platform by a pivoting bale lift arm. The bale lift arm is adapted to lift both large round and large rectangular or square bales into position on a feeder to feed the bales against the rotor for shredding. The shredded material is fed into an impeller and projected through a discharge chute to a desired location. The self-propelled shredder is mounted on axles that can tilt to maintain the shredding section at a desired relationship to a horizontal plane when on side hills.