CRUSHING operation is intended to grit the seeds, separate shall and kernel and to obtain a high protein product by reducing total internal volume. Shelling of oily seeds and separation from kernel is very important in terms of OIL PRODUCTIVITY and QUALITY. If no shelling is performed the oil absorbed by shell during pressing cannot be recovered. The solvent, which is used during extraction process, also solves the waxy material in the shell and the aromatic and coloring agents of the shell, thus reduces oil quality. During shelling, shells must only be cracked, not damaged by crushing. The crushed kernel is driven out with shell and a loss occurs.