We all know the harm of overloading, but overloading has been repeatedly prohibited. With the increase of transportation cost and the decrease of freight profit, some manufacturers have to push up to Liangshan to reduce the cost through overloading.
Not only these large freight trucks, but also the multi-function mixer has always been a disaster area of overload, which is also the normal occupation. To be sure, almost 100% of the multi-function mixer on the market are suspected of overloading, we know it by heart. Before confirming whether a multi-functional mixer is overloaded, we need to understand the following three concepts: what is the volume, mixing volume and tank car volume?
1. Allowable volume: the actual allowable volume of the mixing tank, which refers to the volume calculated by mathematical method in the design of the mixing tank.
2. Mixing volume: as for the horizontal position of the mixer, the mixing bucket can contain large amount of concrete materials without mixing (including water), and can mix the amount of concrete transported to the concrete (based on the volume after tamping), which is the large capacity that the mixer can load the mixture of concrete materials (including water, cement, sand, etc.) without material leakage. Generally, the volume of a few cubic tank cars we call everyday refers to the volume of a tank car.
3. Volume of mixer truck: the volume of ready mixed concrete that can be transported by multi-function mixer truck (based on the volume after tamping) can be regarded as the volume of concrete that can be unloaded when the concrete mixer truck arrives at the project site. Considering that the mixing drum will be skewed when going up the slope, the volume of the multi-function mixer truck is small.
The relationship of the three in numerical value should be: a few volume > mixing volume > mixing truck volume. What we often say is how many square mixing tank truck refers to its mixing volume.
There are clear specifications for loading constraints of multi-function mixer. Let's take our common four after eight mixer truck as an example, which is also the four axis mixer truck in the table above. After it is filled with concrete, its total mass is less than or equal to 31 tons, the volume of the mixing drum is less than or equal to 15.5 square centimeters, and the stirring volume of the mixing drum is less than or equal to 8 square centimeters.