The information provided by Mr. Dos Santos is correct for those belt feeders that are used to feed conveyors from bins, silos, et cetera where a constant uncontrolled feed is used.
Other belt feeders are used in non-shear applications as a means to control the feed to the main conveyor(s) in a belt friendly fashion. That is, the feeder minimizes load impact on the conveyor and delivers the load at a speed matching that of the conveyor. These belt feeders do not require greater horsepower and their primary purpose is to act as a sacrificial belt system, so that the longer conveyor belt does not need to be changed frequently due to loading or load induced mistracking damage.
Both types of belt feeders are conveyor systems in their own right.
With the conditions you described, I do not believe that a belt feeder is required. However, you should ensure that the chuting arrangement delivers the material in a controlled manner.
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