Why is the engine of most site dumpers positioned at the rear?

The positioning of the engine at the rear of most site dumpers is primarily to create a counterbalance effect to the load being carried. When heavy materials are loaded into the front of the dumper, having the engine at the rear helps to balance the vehicle's weight distribution. This balance is crucial for maintaining stability while operating, especially when the dumper is tipping or navigating uneven terrain. Proper weight distribution also enhances traction and handling, reducing the risk of tipping over when the dumper is loaded.

While visibility is important for the operator, it is not the main reason for the design choice concerning the engine's location. Noise reduction can be a factor in some machinery designs, but it is not a primary consideration in the placement of components in dumpers. Similarly, although wear on tires is an important maintenance aspect, the primary function of the rear engine placement is to provide that necessary counterbalance when loads are present.