According to Industrial Research Institute of China Research Institute《2022-Report on Competition Analysis and Development Forecast of China's Highway Maintenance Industry in 2026》Analysis，At present，China's road network has basically taken shape.，Large-scale construction will inevitably bring heavy maintenance tasks.。According to the Ministry of Transport，By the end of 2021，Highway maintenance mileage 525.160,000 km，Accounting for 99% of the total highway mileage.4%，Close to 100%，It shows that the coverage level of highway maintenance in China is high at present.。

Complete routine maintenance operations efficiently and economically、Reduce the carbon footprint of construction，It is placed in road maintenance.、A major issue facing maintenance and construction enterprises。

The field of construction machinery “Fourth National Emission Standard“ Full implementation，Wittgen “Medium-sized milling machine series”：W 125 / 155 / 185 CFi Came into being，While filling the gap in the performance of the traditional milling fleet，But also provides one more option for completing the daily maintenance milling operation of medium scale more economically.。

W 185 CFi It is the model with the widest milling width in the medium milling machine series.，The standard milling drum is 1.9 m。Compared to his brother from the same school. W 155 CFi 1 of.5 m For wide milling drum，Wider milling width Surface milling in daily maintenance operation、Significantly improve efficiency in applications such as cement napping。In this issue, Xiaowei will take you to see several recent application cases.：

Partial maintenance of single lane of expressway

Site overview

Location：G15 Shenhai Expressway

Application：Local rapid milling repair of permeable asphalt pavement

Milling depth：4 cm

Milling width: Single lane 3.75 m

Highlights

  

   W 185 CFi Medium-sized milling machine with compact size，It can be transported to the construction site by sharing a trailer with the supporting sliding sweeper.

This not only saves freight.，It can also reduce the emissions of one trailer.，Milling machine in working condition，With oil、Water，It can be put into construction at the construction site.。

  

   Single person operation，Efficient milling

The actual milling speed on site is 11 m/min，This milling speed is used to accommodate the skip and to ensure a high quality milling textured。You can imagine，If a large milling machine is used，Under the same restrictions，Its milling efficiency will also be limited to this level.。

In this construction site, the medium milling machine is used to complete the same milling work with the same efficiency.，The fuel consumption is greatly saved.，Reduce carbon emissions。W 185 CFi Standard 1.9 m Wide Milling Drum，Two knives can just complete the milling of a single lane.，On the efficiency of milling width，Reached 2 m The level of the milling machine。

  

   0.5 m A curb seat belt.，A Wittgen half-meter milling machine is used. W 50 H Welt milling，Finish it beautifully once. ”Milling flash”

  

  

   W 185 CFi Flat、Beautifully textured milled surfaces，It provides a high-quality foundation for the subsequent paving process.

Municipal cement pavement“White to black”Pull hair
Site overview

Location：Municipal Road, Xinyi City, Maoming

Application：“White to black”Cement napping

Milling depth：6 mm

Highlights

  

   Front discharge milling machine，It is very suitable for the construction environment of municipal roads。Milling speed up to 30 m/min

  

In order to accommodate the crown in the middle of the road，The milling width on each side is 2.9 m,  This also requires two cuts to cover half the milling width of the road。We can imagine，If 2 is used m A large milling machine，To accommodate the road hump，The number of milling cutters can not be less.。A medium milling machine is used，From the perspective of fuel consumption and cost，It's a very wise choice.。

  

Right Offset Milling Drum，40 cm The overhang of，O that the welt milling is also very easy to control.。In this field application，There is no need to call one more half-meter milling machine for edge milling.。

  

  

   The roads of small towns are winding and undulating.，W 185 CFi Always with ease

7.Total construction time of 5 hours，The 11521 was completed m² The napping；And the fuel consumption is only 110 L。Average hourly fuel consumption as low as 14.7 L/h。

Such a site may use 2. m The large milling machine can keep up with the skip.，Can be slightly advanced by 1~1.5 hours to complete，But the fuel consumption is roughly doubled.。This is not only an economic saving.，But also make outstanding contributions to energy conservation and emission reduction.。

  

Wittgen “Delta 18” High performance milling drum，HT22 Plus Tool apron，Ensure the optimum angle and positioning of the tool，Perfect rotation of the cutter head，Reduced resistance during operation，At the same time, the wear rate of the tool is delayed.，Reduce the cost of milling tools。

Wei has something to say

Through the above two practical site applications，It can be seen that under suitable construction application，Choose the most suitable model，Not only can higher benefits be obtained in terms of economic benefits,；What's more,，In terms of social benefits, it can also be “Double carbon target” Make a contribution。