Abstract: A caked grain breaker for separating caked grain particles in a storage bin. The device includes a top grate for positioning above the opening in the bin floor. The top grate has a plurality of apertures therethrough for permitting passage of grain through the top grate. A plurality of spikes for breaking apart caked grain are upwardly extended from the top grate. A plurality of telescopic legs are downwardly depended from the top grate for supporting the top grate above the bin floor. A fluidic piston-cylinder actuator is provided in each of the legs so that each fluidic piston-cylinder actuator extends its associated leg when the fluidic piston-cylinder is extended.