1. The choice of engine horsepower. For the same brand of engine, the higher the horsepower, the better the acceleration performance, the better the climbing performance, the higher the maximum speed under heavy load, and the less the number of shifting during operation. Therefore, if you want your mixer to accelerate fast, have good climbing performance, high speed, and reduce the number of shifts, you'd better choose the engine with relatively high horsepower, which is appropriate, not too high horsepower, which will cause waste.

2. 變速箱選擇，一般來說檔的位數越多，1檔時爬坡性能越好，檔位數越多，換擋時發動機轉速變化月小，整車的使用就更加經濟省油；變速器扭矩，變速器的額定輸入扭矩不能小于發動機的扭矩，比如WP10.336E40發動機的扭矩為1500Nm，可以匹配10JSD160變速器，但是不能匹配10JSD140變速器。變速箱要帶同步器，帶同步器的變速器，換擋時齒輪自動吸入，換擋平順性好，換擋沖擊小。

two Generally speaking, the more the number of gears, the better the climbing performance in the first gear. The more the number of gears, the smaller the change of engine speed in the shift, the more economical and fuel-efficient the whole vehicle is. The transmission torque, the rated input torque of the transmission should not be less than the maximum torque of the engine. For example, the maximum torque of wp10.336e40 engine is 1500nm, which can be matched with 10jsd160 transmission, But it can't match the 10jsd140 transmission. The transmission should be equipped with synchronizer. The transmission with synchronizer can automatically suck in the gears when shifting, which has good shifting smoothness and small shifting impact.

3. 車輛后橋的選擇，攪拌車的承載力主要依靠后橋，后橋的速比月小，同等條件下車速越高，經濟車速越高，經濟車速越高，車輛就越省油，但是車輛的爬坡就差點，檔加速能力就差些。

3. The choice of the rear axle of the vehicle, the bearing capacity of the mixer mainly depends on the rear axle, the speed ratio of the rear axle is small. Under the same conditions, the higher the maximum speed is, the higher the economic speed is, and the higher the economic speed is, the more fuel-efficient the vehicle is. However, the climbing speed of the vehicle is poor, and the acceleration ability of the highest gear is poor.

4. 單雙級強的選擇，單級橋只有主減速器一對齒輪嚙合，傳動效率高，省油；雙級橋有主減和輪邊減速兩對齒輪嚙合，傳動效率低，但是半軸上扭矩小，可靠性比較高。

4. Single stage and double stage strong selection, single stage bridge only has a pair of main reducer gears meshing, high transmission efficiency and fuel saving; double stage bridge has two pairs of main reducer and wheel side reducer gears meshing, low transmission efficiency, but small torque on the half shaft, high reliability.

5. 動力總成選擇，大功率發動機+直接檔+小速比的優勢：大功率換擋減少，保證發動機工作在經濟轉速區，爬坡動力強；直接換擋變速器+小速比后橋可以實現和超速檔變速器+大速比后橋相同的更小傳動比，兩種配置經濟車速一致；直接檔嚙合齒輪數量較少，傳動效率較高，節油性好。

five Powertrain selection, advantages of high-power engine + direct gear + small speed ratio: reduced high-power shift, ensuring that the engine works in the economic speed zone, strong climbing power; direct shift transmission + small speed ratio rear axle can achieve the same minimum transmission ratio as overdrive transmission + large speed ratio rear axle, the two configurations have the same economic speed; the number of meshing gears in direct gear is less, and the transmission efficiency is high It's high and fuel saving.

6. 一般情況下經常使用檔行駛的攪拌車，建議使用直接檔+小速比配置；經常使用次行駛的攪拌車，更好使用超速檔+大速比配置。

6. Generally, the mixer with the highest driving gear is often used, and it is recommended to use the configuration of direct gear + small speed ratio; the mixer with the lower driving gear is often used, and it is better to use the configuration of overdrive gear + large speed ratio.