目前國內生產的400馬力冷再生機，可以對瀝青路面灰土路基進行冷再生作業，還可以當路拌機用。國外主流廠家早已不再生產類似功率的專用路拌機，取而代之的是路面冷再生機，除了路面路基冷再生施工，其使用范圍還包括了傳統的路拌機應用范圍，而且施工效率大大高于傳統的路拌機。對照國外的經驗，功率為400馬力的小冷再生機(相對600馬力的冷再生機)，將會逐步代替國內的傳統后置路拌機。冷再生機比傳統的后墨轉子路拌機施工質量穩定，這得益于冷再生機的結構特點（銑刨轉子在兩橋中間〉，但國內生產的大多數400馬力冷再生機與后置轉子路拌相比，工作速度卻不占優勢。徐州銳馬生產的WR2100L路面冷再生機，在實際應用中，利用可換擋的雙轉速轉子，有著普通路拌無法比擬的優勢，工作時可以速度更快,拌和效果可調，混合料可以打的更細。

The 400 horsepower cold regeneration machine currently produced in China can perform cold regeneration operations on asphalt pavement and lime soil subgrade, and can also be used as a road mixer. Mainstream foreign manufacturers no longer produce specialized road mixers with similar power, but have replaced them with road surface cold recycling machines. In addition to road surface and roadbed cold recycling construction, their scope of use also includes the application range of traditional road mixers, and the construction efficiency is much higher than that of traditional road mixers. Based on foreign experience, a small cold regeneration machine with a power of 400 horsepower (compared to a cold regeneration machine with a power of 600 horsepower) will gradually replace the traditional rear mounted road mixer in China. The construction quality of the cold regeneration machine is more stable than that of the traditional rear ink rotor road mixer, thanks to the structural characteristics of the cold regeneration machine (the milling rotor is in the middle of the two bridges). However, most domestically produced 400 horsepower cold regeneration machines do not have an advantage in working speed compared to rear rotor road mixers. The WR2100L road cold regeneration machine produced by Xuzhou Ruima has advantages in practical application that ordinary road mixers cannot compare to, using a shift able dual speed rotor. It can work faster, with adjustable mixing effects and finer mixing of the mixture.

國內的路拌機拌和轉子的轉速往往只有一種，如果有廠家說轉速可調，那是調整液壓泵的輸出排量，通過減小泵的排量來降低轉子轉速，實際同時也降低了輸出功率，降低了機器的工作效率，沒有實際意義，所以沒有操作司機會降低轉子轉速干活。還有廠家說行走有兩個擋，這和轉子工作擋是兩個概念，目前國內所有廠家生產的路拌機都有兩個行走工作擋。徐州銳馬生產的WR2100L瀝青路面冷再生機銑創有兩個轉子工作擋，兩擋轉速各有一個大轉速，這兩個轉速是全功率的雙轉速。在實際應用中，許多用戶已體會到雙轉速的優點來。舉兩個實際例子。

There is often only one type of speed for the mixing rotor of domestic road mixers. If a manufacturer claims that the speed is adjustable, it is to adjust the output displacement of the hydraulic pump and reduce the rotor speed by reducing the pump displacement. In fact, it also reduces the output power and reduces the efficiency of the machine, which has no practical significance. Therefore, without operating the driver, the rotor speed will be reduced to work. Some manufacturers also say that there are two gears for walking, which is a different concept from the rotor working gear. Currently, all road mixers produced by domestic manufacturers have two walking working gears. The WR2100L asphalt pavement cold recycling machine produced by Xuzhou Ruima has two rotor working gears, each with a high speed. These two speeds are full power dual speeds. In practical applications, many users have realized the advantages of dual speed. Give two practical examples.

一臺WR2100L在東營施工，這個作業面是灰土拌和，要求拌和深度為35公分，比一般的灰土拌和工作深度深很多。當時工地有兩臺后置路拌，一臺徐州雷馬的WB21H，一臺徐工的WB21，兩臺拌和機在壓力很高的情況下〈達到了25Mpa )，一分鐘也只能走3米多，而我們的WR2100L采用一檔，壓力在20Mpa時，行走速度也能跑7一8米/分鐘。到了年底機器老板去結算，這臺冷再生的平均油耗明顯的低，按平方計算，油耗比路拌機低40%，租賃方很滿意，跟機器老板說明年一定再來。這是一檔低速大扭矩的應用。還有一個工地，在淄博，業主要求灰土拌和要打的細，為達到要求，一般的后置路拌需要打兩遍才能達到要求，還是這個用戶的WR2100L,采用二擋，一遍就達到了業主的要求，工地施工追求的是效益，一刀活達到要求肯定比兩刀省油。

A WR2100L machine is being constructed in Dongying, which involves mixing lime and soil. The required mixing depth is 35 centimeters, which is much deeper than the usual lime and soil mixing depth. At that time, there were two rear mounted road mixers on the construction site, one from Xuzhou Leima's WB21H and one from XCMG's WB21. Both mixers could only travel more than 3 meters per minute under high pressure (reaching 25Mpa), while our WR2100L used first gear and could travel at a speed of 7-18 meters per minute even at a pressure of 20Mpa. At the end of the year, the machine owner went to settle the bill, and the average fuel consumption of this cold regeneration machine was significantly lower. Calculated by square, the fuel consumption was 40% lower than that of the road mixer. The lessee was very satisfied and explained to the machine owner that they would definitely come back this year. This is an application of low speed and high torque. There is also a construction site in Zibo, where the owner requires the mixing of lime and soil to be fine. In order to meet the requirements, the general rear road mix needs to be mixed twice. This user's WR2100L uses second gear and meets the owner's requirements in one go. The construction site pursues efficiency, and achieving the requirements with one go is definitely more fuel-efficient than two cuts.

在灰土拌和實際應用中，機主一般都是采用一檔工作，機器有勁，工作速度快，損耗還小，工作速度明顯比路拌要快很多。

In the practical application of lime soil mixing, the machine owner generally uses first gear operation. The machine is powerful, operates at a fast speed, and has low losses. The working speed is significantly faster than road mixing.

在冷再生機的本行——瀝青路面冷再生施工中，也可靈活選擇工作檔位，工作面較硬時，用一檔，明顯比其它400馬力冷再生機速度更快，破碎粒度也能達到要求，若工作面較軟，用二檔，高轉速，可以將成品料打得很細，比其它400馬力冷再生機破碎料度更小。靈活的應用，全在現場掌握。轉子轉速增加檔位，整機的成本增加了，但帶來的效益卻遠遠高于增加的成本。徐州銳馬在研發各型機器時，一直把機器性能放在首位，而將成本放在次要的位置上，在機器技術性能上做國內的先行者。

In the field of cold recycling machines - asphalt pavement cold recycling construction, the working gear can also be flexibly selected. When the working surface is hard, using the first gear is significantly faster than other 400 horsepower cold recycling machines, and the crushing particle size can also meet the requirements. If the working surface is soft, using the second gear and high speed can finely crush the finished material, which is smaller than the crushing particle size of other 400 horsepower cold recycling machines. Flexible applications can be mastered on-site. The increase in rotor speed and gear increases the cost of the entire machine, but the benefits it brings far exceed the increased cost. When developing various types of machines, Xuzhou Ruima has always prioritized machine performance and placed cost in a secondary position, becoming a pioneer in machine technology performance in China.