Transmission systems play an important role in seed processing plants. Preliminary research in Moghan indicates that 23% of the physical damage to the seed was caused by bowl elevators. Realizing the importance of the issue, Azaran Bojar Iranian Company began to build new pendular Z-shaped elevators. According to research, the construction of these elevators has led to an 87% reduction in physical damage to seeds by older elevators. In addition, if the seeds are changed in the processing line, these elevators will not need to be cleaned at all, but after a few minutes of operation, the elevators will be completely empty.