A self-loading truck, also known as a self-loading mixer truck or self-loading concrete mixer truck, is a specialized vehicle designed for the transportation and mixing of concrete on-site. It features a mixer drum mounted on the back of the truck chassis, similar to a standard concrete mixer truck.

However, what sets a self-loading truck apart is its ability to load raw materials (such as aggregates, cement, and water) into the mixer drum automatically, without the need for external equipment like a concrete batching plant or loader.