Concrete mixer truck is composed of truck chassis and special equipment for concrete mixing and transportation. The chassis of the concrete mixer truck produced in our country mostly adopts the class II general chassis provided by the vehicle manufacturer, and its special mechanism mainly includes the power take-off, the front and rear supports of the mixing drum, the reducer, the hydraulic system, the mixing drum, the operating mechanism, the cleaning system, etc. So, what are the key points of concrete mixer truck purchase?

選購要點一：使用要可靠

Key point 1: reliable use

混凝土裝入車內以后，要求在2h或更短的時間內卸到工作面上，在此期間必 須不停地攪拌。如果在規定時間內不能運到工地或因各種原因停止攪拌，車內混凝土就會報廢，嚴重的會導致混凝土凝固在車內，造成攪拌運輸車報廢。這對攪拌運輸車的可靠性提出了嚴格的要求，不允許攪拌運輸車在工作時發生停機的故障。因此混凝土攪拌車選型首先要考慮的就是車輛必 須十分可靠，關鍵部位如發動機和傳動一驅動裝置發生故障的可能性要越低越好。

After the concrete is loaded into the truck, it is required to be unloaded to the working face within 2 hours or less, and must be continuously mixed during this period. If the concrete cannot be transported to the construction site within the specified time or the mixing is stopped for various reasons, the concrete in the truck will be scrapped. In serious cases, the concrete will solidify in the truck and the truck will be scrapped. This puts forward strict requirements for the reliability of the mixer truck, and does not allow the mixer truck to stop when it is working. Therefore, the first consideration of concrete mixer selection is that the vehicle must be very reliable, and the lower the possibility of failure of key parts such as engine and transmission drive device, the better.

選購要點二：裝載量要合適

Key point 2: the loading capacity should be appropriate

理論上說，運輸車輛的裝載量越大，運輸效率越高，但這也會導致車輛購置成本直線上升和通過性下降。裝載量為8～9m。8×4底盤的混凝土攪拌車要比裝載量為6～7m。6×4底盤的價格貴309/5～40%，同時，建筑工地一般地域狹小，臨時施工道路路況很差，大車尤其是半掛車行動不便的問題必 須充分考慮到。因此，確定車輛的裝載量時一定要綜合考慮各方面的因素，不可顧此失彼。

In theory, the larger the loading capacity of transport vehicles, the higher the transport efficiency, but it will also lead to a sharp rise in vehicle purchase cost and a decline in trafficability. The loading capacity is 8-9m. eight × The specific loading capacity of concrete mixer truck with 4 chassis is 6-7m. six × The price of chassis is 309 / 5 ~ 40%. At the same time, the construction site is generally narrow, the road condition of temporary construction road is very poor, and the problem of big car, especially semi-trailer, is inconvenient to move must be fully considered. Therefore, when determining the loading capacity of the vehicle, we must take all factors into consideration.

選購要點三：機構設計合理，操作方便，混凝土貯罐卸料徹 底

Key points of purchase: reasonable mechanism design, convenient operation and complete discharge of concrete storage tank

這些使用中經常遇到的問題也必 須考慮到。比如若卸料不完全，留在罐內的混凝土就會越積越多，使貯罐容量減小，并且清理十分困難。

These problems often encountered in use must also be considered. For example, if the discharge is not complete, more and more concrete will be left in the tank, which will reduce the capacity of the tank and make the cleaning very difficult.

選購要點四：售后服務要好

Purchase point 4: good after-sales service

混凝土攪拌車是一種專用重型車輛，保有量少，配件來源少，與一般通用汽車相比，對廠家的售后服務依賴性較大。因此，廠家是否能提供方便快捷可靠的售后服務，是選型中必 須考慮的重要因素。

Concrete mixer is a kind of special heavy-duty vehicle, with less ownership and less source of accessories. Compared with general motors, it is more dependent on the manufacturer's after-sales service. Therefore, whether the manufacturer can provide convenient and reliable after-sales service is an important factor that must be considered in the selection.

選購要點五：價 格要合理

Purchase point 5: the price should be reasonable

在滿足上述要求的前提下再考慮價格因素。裝載量為6～7m后雙橋底盤的混凝土攪拌車是性能價格比高的車型，裝載量為10～12m的半掛車次之，裝載量為8～10m8×4底盤的性能價格比低。因此一般選用6～7m的混凝土攪拌車。另外，為滿足個別大型工程的需要，可適當配少量10～12m的半掛車。這樣可以兼顧各種需要，是比較合理的配置。

On the premise of meeting the above requirements, the price factor will be considered. The concrete mixer with 6-7m loading capacity and rear double axle chassis is the model with high performance price ratio, followed by the semi-trailer with 10-12m loading capacity and the semi-trailer with 8-10m8 loading capacity × 4. The performance price ratio of chassis is low. Therefore, 6-7m concrete mixer is generally selected. In addition, in order to meet the needs of individual large projects, a small number of 10-12m semitrailers can be appropriately equipped. In this way, all kinds of needs can be taken into account, which is a more reasonable configuration.