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.
與自卸車相同，城市內運營的攪拌車治超也有趨嚴發展的形式，根據規定，4軸攪拌車最大隻能安裝攪拌容量8立方米的攪拌筒，對於目前動輒18立方米起的4軸攪拌車來說影響很大。
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.
基於這樣的背景，一些廠家也推出了混凝土攪拌半掛車，希望用軸數更多的掛車來取代傳統的攪拌車。
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，現實很骨感，大部分卡友好像對此並不買單，提出的問題也非常現實。
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.
半掛車通過性差
Poor trafficability of semi-trailer
混凝土攪拌半掛車為掛車+牽引車的組合形式，整車長度要比4軸攪拌車增加許多，現實生活中的工地並不是每個都有寬敞的施工空間，過長的車身靈活性較差，進出工地非常不便利。
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.
此外攪拌車卸料需要與泵車尾對尾，運輸車抵達工地之後需要調頭倒車，半掛車在調頭和倒車的時候操作難度大，不利於精準調整位置，對駕駛員的要求非常高。
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.
由於軸數增加，但是混凝土攪拌半掛車還是采用6x4驅動的牽引車，隻有4個驅動輪，與4軸攪拌車相同。有駕駛經驗的卡友都知道，軸數越多動力損耗越大，同樣的路麵4軸車能走過去，6軸的半掛車可能就會陷住。
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.
簡而言之，工地的現實環境會給混凝土半掛車上一場生動的社會實踐課。
In short, the actual environment of the construction site will give a vivid social practice lesson to the concrete semi-trailer.
當然也不排除有些工地施工環境較好，路麵鋪裝完備，有足夠大的空間，這種施工環境使用混凝土攪拌半掛車絕對沒有問題。
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駕駛員人工成本增加
A2 driver labor costs increase
普通的4軸攪拌車駕駛員隻需要持有B2駕駛證即可上崗，工資相比A2來說更低，駕駛員也更為好找。
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.
混凝土攪拌半掛車方量更大，為何賣得並不好？
The volume of concrete mixing semi-trailer is larger, why is it not sold well?
而混凝土攪拌半掛車由於是牽引車，必須要有A2駕駛證的駕駛員，不但工資要比B2駕駛員多，擁有A2證的司機也更加難找，如果企業把普通的攪拌車換成半掛攪拌車，駕駛員的緊缺問題都夠頭大。
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.
從運輸成本來看，混凝土攪拌半掛車的運載量更大，可以做到14m?左右，比8m?的4軸攪拌車要多很多，效益增加之後多賺的錢足夠彌補B2和A2駕駛員的工資成本，但還是無法解決A2駕駛員缺乏的問題。
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.
混凝土攪拌車告訴大家混凝土攪拌半掛車方量的特點，大家在購買的過程中一定要根據自我的需求來考量！
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!
