Drum motors have become the standard for many materials handling tasks. Their advantage over alternative drives lies in the fact that the motor-gear unit sits inside the belt or conveyor deflection roller, saving a great deal of space, components, and design effort.
Conveyors with drum motors also look more attractive because they do not have a motor flanged to the side. This also increases their reliability, because there’s no risk of accidentally bumping into the motor when walking or driving by. Besides, ascending conveyor sections can be implemented the same on the right as on the left. Ultimately, drum motors are also more hygienic than alternative designs, for the simple reason that what isn’t there doesn’t need cleaning.
The fewer corners and edges, the better. As the drum motors are then also oil-free, you end up with the most hygienic design.