How to Calculate Hopper Drag Load, Power, & Pressure ...
In summary, the active weight of material on the feeder belt and, therefore, hopper drag load are linearly proportional to the active volume. Our example demonstrated that reducing active volume from 154 ft 3 to 77 ft 3, reduces drag load from 6,769 lbs to 3,384 lbs. This, in turn, reduced required conveyor drive power from 23.2 HP to 12.2 HP.
