A device and method for shelling nuts. The device may be attached to a belt sander. The device includes a hopper into which the nuts are initially placed. Two large threaded fasteners on the central portion are used to adjust the system for the size of nut being shelled. A bracket placed behind the central portion attaches the device to the sander. The rotating belt brings the nut down to a lower opening formed to be just smaller than the shell of the nut being shelled. As the shell of the nut is caused to pass through this opening, the shell cracks. The nut with the cracked shell now impacts on one or more strike plates. These impacts further propagate the cracks formed in the shell so that the fragmented shells fall away from the nut. The nut and the cracked shells fall into the collection bag.