Transfer Trucks

A transfer dump is a standard dump truck pulling a separate trailer with a movable cargo container, which can also be loaded with construction aggregate — gravel, sand, asphalt, klinkers, snow, wood chips, triple mix, etc.

The second aggregate container on the trailer (“B” box),[17] is powered by an electric motor, a pneumatic motor or a hydraulic line. It rolls on small wheels, riding on rails from the trailer’s frame into the empty main dump container (“A” box). This maximizes payload capacity without sacrificing the maneuverability of the standard dump truck. Transfer dump trucks are typically seen in the western United States due to the peculiar weight restrictions on highways there.

Transfer dump trucks typically haul between 26 and 27 short tons (23.6 and 24.5 t; 23.2 and 24.1 long tons) of aggregate per load, each truck is capable of 3-5 loads per day, generally speaking.