It is learned to choose the volume of the mixing tank. It not only affects the cost of the car, but also affects the function of the vehicle. The driving safety factor is low. The larger the tank, the higher the center of gravity, and the poor stability of the vehicle. Therefore, we should select the appropriate volume according to the working environment, economic benefit, function, safety and other factors of the mixing tank truck. In addition, we also need to know that the volume of the mixer can not be simply regarded as the volume of the tank. There are three clear conceptual differences:

1、搅拌车几何容积：搅拌桶内实际的几何容积，是指搅拌罐设，用数学方法核算出来的几何容积。

1. Geometric volume of mixing truck: the actual geometric volume in the mixing drum refers to the geometric volume calculated by mathematical method in the design of mixing tank.

2、搅拌车搅拌动容积：混凝土搅拌罐车能够运送的预拌混凝土量（以捣实后的体积计）。能够看成混凝土搅拌罐车抵达工程现场所能够卸下的混凝土方量预拌混凝土容量按2400kg/m3核算。

2. Mixing volume of mixer truck: the volume of ready mixed concrete that can be transported by concrete mixer truck (based on the volume after tamping). It can be regarded as the quantity of concrete that can be unloaded when the concrete mixer truck arrives at the project site, and the capacity of ready mixed concrete is calculated as 2400KG / m3.

3、搅拌车搅拌容积：混凝土搅拌罐车置于水平位置，搅拌桶能容纳的未经搅拌的混凝土物料，并能搅拌出运混凝土的量。

3. Mixing volume of mixing truck: the concrete mixing tank truck is placed in a horizontal position, and the mixing bucket can hold the concrete materials that have not been mixed, and can be mixed and transported to the concrete.

三者的联系应该是：中科聚峰搅拌车几何容积＞搅拌容积＞搅拌动容积，用户经常所说的容积应该是指搅动容积，所以在现购混凝土搅拌罐车时，要留意区别问清车辆的搅拌容积。

The connection between the three should be: geometric volume of Zhongke Jufeng mixer > mixing volume > mixing volume. The volume often mentioned by users should refer to mixing volume. Therefore, when purchasing concrete mixer, we should pay attention to the difference and ask for the mixing volume of the vehicle.