The lowest tare weight is at the forefront of the bulk trailer design. Each pound saved on the trailer, directly translates to one pound in payload. These self-unloading trailers are actuated by the PTO on the trucks. The unloading methods are typically done by a telescopic cylinder or by a conveyor belt. Both unloading methods offer their own set of advantages and disadvantages. Careful consideration is the key to determining the best type of trailer to maximize the profitability.