With the strict control of overloading in various places, some urban highway sand and stone transportation has changed from 4-axle dump truck to semi-trailer dump truck with more axles. The total weight of 49 tons of 6-axle truck is significantly improved than that of 31 tons of 4-axle truck, which can not only legally overload, but also ensure that the transportation volume is not reduced too much.
与自卸车相同，城市内运营的搅拌车治超也有趋严发展的形式，根据规定，4轴搅拌车只能安装搅拌容量8立方米的搅拌筒，对于目前动辄18立方米起的4轴搅拌车来说影响很大。
Similar to dump trucks, the overload control of urban mixer trucks also has the form of stricter development. According to the regulations, the maximum mixing capacity of 4-axis mixer truck can only be installed with mixing drum of 8 m3, which has a great impact on the current 4-axis mixer truck with 18 cubic meters.
基于这样的背景，一些厂家也推出了混凝土搅拌半挂车，希望用轴数更多的挂车来取代传统的搅拌车。
Based on this background, some manufacturers have also launched concrete mixing semi-trailer, hoping to replace the traditional mixing truck with more axles.
但是，理想很美好，现实很骨感，大部分卡友好像对此并不买单，提出的问题也非常现实。
However, the ideal is very beautiful, the reality is very skinny, most card friends do not seem to pay for this, and the questions raised are also very realistic.
半挂车通过性差
Poor trafficability of semi-trailer
混凝土搅拌半挂车为挂车+牵引车的组合形式，整车长度要比4轴搅拌车增加许多，现实生活中的工地并不是每个都有宽敞的施工空间，过长的车身灵活性较差，进出工地非常不便利。
The concrete mixing semi-trailer is a combination of trailer and tractor. The length of the whole vehicle is much longer than that of the 4-axle mixer truck. In real life, not every construction site has a spacious construction space. The long body flexibility is poor, and it is very inconvenient to get in and out of the construction site.
此外搅拌车卸料需要与泵车尾对尾，运输车抵达工地之后需要调头倒车，半挂车在调头和倒车的时候操作难度大，不利于精准调整位置，对驾驶员的要求非常高。
In addition, the unloading of the mixer truck needs to be aligned with the tail of the pump truck. After the transport vehicle arrives at the construction site, it is difficult to operate the semi-trailer when turning around and reversing, which is not conducive to accurate adjustment of position, and the requirements for the driver are very high.
由于轴数增加，但是混凝土搅拌半挂车还是采用6x4驱动的牵引车，只有4个驱动轮，与4轴搅拌车相同。有驾驶经验的卡友都知道，轴数越多动力损耗越大，同样的路面4轴车能走过去，6轴的半挂车可能就会陷住。
Due to the increase of the number of axles, the concrete mixing semi-trailer still adopts a 6x4 driven tractor with only four driving wheels, the same as the 4-axle mixer. The more the number of axles, the greater the power loss. If a 4-axle vehicle can walk over the same road surface, a 6-axle semi-trailer may get stuck.
简而言之，工地的现实环境会给混凝土半挂车上一场生动的社会实践课。
In short, the actual environment of the construction site will give a vivid social practice lesson to the concrete semi-trailer.
当然也不排除有些工地施工环境较好，路面铺装完备，有足够大的空间，这种施工环境使用混凝土搅拌半挂车没有问题。
Of course, it is not ruled out that some construction sites have good construction environment, complete pavement and enough space. There is absolutely no problem using concrete mixing semi-trailer in this construction environment.
A2驾驶员人工成本增加
A2 driver labor costs increase
普通的4轴搅拌车驾驶员只需要持有B2驾驶证即可上岗，工资相比A2来说更低，驾驶员也更为好找。
Ordinary 4-axle mixer drivers only need to hold B2 driving license to work, and the salary is lower than A2, and the driver is easier to find.
混凝土搅拌半挂车方量更大，为何卖得并不好？
The volume of concrete mixing semi-trailer is larger, why is it not sold well?
而混凝土搅拌半挂车由于是牵引车，必须要有A2驾驶证的驾驶员，不但工资要比B2驾驶员多，拥有A2证的司机也更加难找，如果企业把普通的搅拌车换成半挂搅拌车，驾驶员的紧缺问题都够头大。
As a tractor, the concrete mixing semi-trailer must have an A2 driver's license. Not only is the salary higher than that of B2 driver, but also the driver with A2 certificate is more difficult to find. If the enterprise changes the ordinary mixer truck to the semi-trailer mixer, the shortage of drivers is big enough.
从运输成本来看，混凝土搅拌半挂车的运载量更大，可以做到14m?左右，比8m?的4轴搅拌车要多很多，效益增加之后多赚的钱足够弥补B2和A2驾驶员的工资成本，但还是无法A2驾驶员缺乏的问题。
From the perspective of transportation cost, the carrying capacity of concrete mixing semi-trailer is larger, which can reach about 14m? Which is much more than that of 8m? 4-axle mixer. After the increase of benefits, the extra money can make up for the wage cost of B2 and A2 drivers, but it still can not solve the problem of lack of A2 drivers.
混凝土搅拌车告诉大家混凝土搅拌半挂车方量的特点，大家在购买的过程中一定要根据自我的需求来考量！
Concrete mixer tells you the characteristics of the volume of concrete mixing semi-trailer, you must consider according to your own needs in the process of purchasing!
