It is a public truck used to transport and mix concrete for construction; because of its shape, it is often called a snail truck. This truck is equipped with a cylindrical mixing drum to carry the mixed concrete. During the transportation process, the mixing drum will always be maintained to migrate and transform to ensure that the carried concrete will not condense. After the concrete has been transported, the city will wash the exterior of the mixing drum with water on weekdays to avoid the softened concrete taking up space and reduce the volume of the mixing drum.

Mixer truck composition: second-class chassis, drive train, hydraulic system, frame, mixing tank, inlet and outlet assembly, water supply system, control system, human ladder and other departments. The front end of the mixing tank is connected with the accelerator and installed on the front of the frame, and the back end is supported by two supporting wheels installed on the back of the frame via a raceway.