In the grain processing process, rapid transportation of grains may sometimes be undesirable. For example, at a particular processing stage grains may need to move at a slower speed or be prevented from accumulating at a certain point. In these cases, the speed of the grain can be kept under control by using speed breakers in conveyors or transport systems.

Retarders usually function by controlling engine power or adjusting the speed of the conveyor belt. Thus, the grain is ensured to move at the desired speed and the efficiency of the processing process is increased. Speed ​​breakers play an important role in ensuring consistency and quality in the production process.