Mixer truck, which is a special truck used to transport concrete for construction; Because of its shape, it is also often called a snail cart or an olive cart. These trucks are equipped with cylindrical mixing drums to carry the mixed concrete.

The mixing drum is always rotated during transportation to ensure that the concrete carried does not solidify. After transporting concrete, the inside of the mixing drum is usually washed with water to prevent the residual concrete from hardening and taking up space, so that the volume of the mixing drum is getting smaller and smaller.

The concrete mixer truck is composed of a car chassis and a special device for concrete mixer transportation. The chassis of the concrete mixer truck produced in China mostly adopts the second-class general chassis provided by the vehicle manufacturer. Its special mechanism mainly includes power take-off, front and rear supports of the mixing drum, reducer, hydraulic system, mixing drum, control mechanism, cleaning system, etc. The working principle is that the power of the automobile chassis is taken out through the power take-off device, and the variable pump of the hydraulic system is driven, and the mechanical energy is converted into hydraulic energy and transmitted to the quantitative motor, which then drives the reducer, and the reducer drives the mixing device to mix the concrete.