For the problem of overload, too much, transportation costs increase, freight profits reduce, some manufacturers through overloading to reduce costs. However, all kinds of automatic mixing machine overload brought about by the security risks. It's a wake-up call for us again!
Not only these large freight trucks, automatic mixers have always been the heavy disaster area of overloading, but also the normal situation of the industry. It can be said for sure that almost 100% of the mixer trucks on the market are overloaded. If you want to know that one truck pulls more concrete, the profit is very considerable. Therefore, in order to meet the needs of the market, but also to make their products sell better, they have to do something about the volume of the mixing drum.
Before determining whether a mixer truck is overloaded, we need to understand the following three concepts: geometric volume, mixing volume and mixer volume respectively?
1. Geometric volume: the actual geometric volume of the mixing drum, which refers to the volume calculated by mathematical method when the mixing tank is designed.
2. Mixing volume: as for the horizontal position of the mixer truck, the amount of concrete materials (including water) that can be contained in the mixing bucket and transported to the concrete (in terms of the volume after tamping) is the capacity of the mixer truck to load the mixture of concrete materials (including water, cement, sand, etc.) without leakage. In general, we call a few cubic meters mixer truck is the mixing volume of the mixer.
3. Volume of mixer truck: the volume of ready mixed concrete that can be transported by the mixer truck (based on the volume after tamping), which can be regarded as the volume of concrete that can be unloaded when the mixer truck arrives at the project site. Considering that the mixing drum will incline when going up the slope, the volume of the mixer truck is small. The relationship between the three in numerical value should be: geometric volume > mixing volume > mixer volume. As we often say, the number of square mixer truck refers to its stirring volume.
In order to prevent this problem, the left and right door should be sprayed with the words of "limit load" or "total mass", so as to supervise the overload of mixer truck.