The large volume of the tank not only affects the cost of purchasing the vehicle, but also affects the vehicle performance. The driving safety factor is low. The larger the tank, the higher the center of gravity, and the poor vehicle stability. Therefore, the owner friends should select the appropriate concrete mixer according to the working conditions, environment, economic benefits, performance, safety and other factors.
首先混凝土攪拌車容積不能簡單的認為就是罐體的容積，要有明確的三個概念區分：
First of all, the volume of concrete mixer truck can not be simply regarded as the volume of tank, but should be clearly distinguished by three concepts:
攪拌車幾何容積：攪拌桶內實際的幾何容積，是指攪拌罐設計時，用數學方法計算出來的幾何容積。
Geometric volume of mixer truck: the actual geometric volume in the mixing drum refers to the geometric volume calculated by mathematical method during the design of mixing tank.
攪拌動容積：攪拌車能夠運輸的預拌混凝土量（以搗實後的體積計）。可以看成攪拌車到達工程現場所能夠卸下的混凝土方量預拌混凝土容量按2400kg/m3計算。
Mixing dynamic volume: the amount of ready mixed concrete that can be transported by the mixer truck (calculated by the volume after tamping). It can be regarded as the concrete volume that can be unloaded by the mixer truck when it arrives at the project site. The capacity of ready mixed concrete is calculated as 2400KG / m3.
攪拌容積：攪拌車置於水平位置，攪拌桶能容納最大的未經攪拌的混凝土物料（包括水），並能攪拌出運至混凝土的量（以搗實後的體積計）。
Mixing volume: the mixer truck is placed in a horizontal position, and the mixing bucket can hold the largest concrete materials (including water) that have not been mixed, and can mix the amount transported to the concrete (calculated by the volume after tamping).
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三者的關係應該是：攪拌車幾何容積＞攪拌容積＞攪拌動容積，用戶經常所說的容積應該是指攪動容積，所以在現購攪拌車時，要注意區分問清車輛的攪拌容積。
The relationship between the three should be: geometric volume of the mixer > mixing volume > mixing volume. The volume often mentioned by users should refer to the mixing volume. Therefore, when purchasing the mixer, pay attention to distinguish the mixing volume of the vehicle.
