From 1 December 2022，Off-road mobile machinery “Guo Si” The standard has been formally implemented nationwide.。The full implementation of the new emission standards will make a great contribution to the improvement of air environmental quality.，Make sure “Double Carbon“ The successful achievement of the goal。

In fact，As early as December 2021，Big cities like Beijing have taken the lead.，High local emission standards have been implemented。

Wirtgen Group has rich application experience based on energy saving and emission reduction in European and American markets.，Respond positively，With deep technical reserves，For some customers in the Beijing area, it has been configured in advance to meet their needs. “Guo Si“ Standard large milling machineW 205 i，For more than a year.，It has been tested by practice.，It has made its own contribution to energy conservation and emission reduction.。

In addition to meeting more stringent emission standards，Pavement milling and maintenance of municipal roads in the metropolis，Customers also have very high expectations for the efficiency of the equipment。

In the still of night，Cars on busy streets during the day、The buses are all gone.，People who have worked hard all day fall asleep.。But there is a group of workers who are still busy.，Their mission is to mill and repair the pavement in just a few hours at night when traffic is minimal.。

  

At the dawn，When the city wakes up.，They quit silently，Give the busy city a clear road.。Wittgen W 205i Efficient and reliable，It is easy to use，Is their best assistant.。Click on the video of the construction site below.，Have a look W 205i Construction style。

Wittgen China，Zan 71

Location：Beijing Haidian North Fourth Ring side road.

Construction period：Night 23:00-2 am:00

Milling depth：10 cm

Use the equipment：W 205i

Highlights：Within 4 hours，Nearly 1000 tons of asphalt milling and recycling completed on schedule，It ensures that the subsequent paving process can be successfully completed in a very short construction window period that night.；Good construction organization，Efficient milling operation，The impact on traffic is reduced to a minimum。

Road works in big cities with heavy traffic，There is only a very short construction window of six hours at night.，In the rapid maintenance of roads, each construction link of the milling and spreading process is interlinked.，If there is a problem in the first step of milling，It will affect the whole construction progress.，This may even result in the planned warm mix asphalt material not being able to be spread in the appropriate temperature window，And then bring serious economic losses.。

So，In addition to meeting the basic requirements of construction equipment access with low emission，As the main equipment of the first process，The milling machine itself should also have high reliability.、High performance、Characteristics of high yield，The milling volume can be completed with quality and quantity guaranteed.，In order to leave enough time for the paver to successfully complete the planned amount of hot asphalt material paving tasks.。

 

Wittgen, who meets the fourth national emission standard, W 205i One of the secrets of being able to meet these requirements with ease is thatIt has a powerful and stable central control system.，Intelligent integration of six innovative functions，Make sure W 205i Extremely high construction efficiency。

Wittgen intelligent control system WIDRIVE

  

01Intelligent load control of engine

Sensors are used to sense the change of load in real time.，WIDRIVE Control of engine power output split as required。No need for operator intervention，Distribution of the output power of the automatic adjusting engine to the working systems of the milling machine。

First make sure that the milling cuts、Power requirements for material delivery，Adjust the travel speed to accommodate the change in load。So that that engine 100 can be utilize%Output power of，Under these different load conditions.，Maximize milling output at all times；

02Intelligent cutter-feeding control

At the time of the knife，Automatic control of cutting speed，Ensure smooth lowering of the knife，Reduce the impact on all parts of the milling machine，Ensure stable operation and high reliability of the machine；

03Intelligent depth control

Wittgen's automatic leveling system is integrated with the control system of the whole machine.。Intelligent outrigger height control，Adapt to the ups and downs of the road，Responds efficiently to signals from the leveling system，Make the milling machineAutomatic leveling with high accuracy even during high-speed milling；

04Intelligent walking control

ISC Intelligent walking control，Through the speed sensors on the four track，And the displacement sensor on the intelligent steering cylinder，Real-time sensing of track traveling state and steering angle，Adjusts the speed difference of the four tracks automatically，MakeThe drive of the four tracks is always coordinated，And that drive efficiency is improved，Reduce wear on track shoes。

When the adhesion of the road surface decreases.，ASC Automatic anti-skid system operation。Unlike conventional hydraulic differential lock，ASC Automatic anti-skid system，According to the change of adhesion，Automatically adjust the motor oil quantity，Make full use of the driving force of all four tracks，So as to better adapt to various road conditions.，Maximize milling output；

05Intelligent engine management

The engine intelligent management system realizes the automatic throttle control in milling operation.，While ensuring engine output，The fuel economy of the equipment is greatly improved.，This has also made considerable contributions to energy conservation and emission reduction.；

06Intelligent sprinkler control

According to the milling amount、Milling speed and operator settings，The control of the sprinkling amount and the sprinkling switch is automatically performed，Thereby saving the spraying amount during the milling operation to the maximum extent.。

This can not only extend the working time of the milling machine，Reduce the frequency of adding water，And that operation efficiency is improve，But also the water content of the milled reclaimed material is reduced due to less water sprinkling.，Reduced fuel consumption during material recovery，Reduced carbon footprint，It also contributes to energy conservation and emission reduction.。

Wei has something to say

Off-road mobile machinery “Guo Si” After the standard is formally implemented nationwide,，At present, more and more attention is paid to low-carbon environmental protection.，There will be more and more construction sites all over the country.，In particular, key projects will be inclined to the emission standards of access equipment.。

Adding new aircraft to the future fleet of construction units and equipment leasing companies，The fourth national emission equipment is a long-term choice。Advanced technology、The performance is excellent，At the same time, the equipment tested by practice is the professional choice of construction experts.。

Besides W 205i, Wittgen all the way “Guo Si” There are three models in the large milling machine series.：

  

  

W 195i – Leading technology、Powerful performance；W 205i – Super performance、Widely used；W 215i – Top performance、Top-level configuration。

These three models in addition to have WIDRIVE Wittgen intelligent control system，Ideal milling efficiency can be achieved，What are the other features?？We'll see you next time！

Please also consult the authorized agents of Wirtgen in China.，Contact events such as Demo and Test Drive for more equipment information。

Special thanks to the site for providing material：Li Kai, Wittgen China