December 1, 2022，The concerned national emission standards for non-road mobile machinery have been formally implemented.，On behalf of the construction machinery industry, the goal of green emission reduction has been greatly improved.。
Guo Xiang, head of Hangzhou Heyuan Machinery Equipment Co., Ltd.Cat®（Carter）PMThe performance of 620 Milling Machine is highly evaluated.
Recently，Caterpillar's latest launch of the fourth national emission standardCat®（Carter）PM620 Milling Machine performed well in the reconstruction project of Zhongbu Bridge in Fuyang District, Hangzhou，Won the praise of the owners and the audience.，Affectionately referred to by users as“Used to date‘Super easy to use’A Milling Machine.”。
One、Basic information
Zhongbu Bridge Reconstruction Project is a key traffic construction project in Fuyang District of Hangzhou City.（Taiping to Zhongbu Bridge）An important part of，It is also an important node project of the Asian Games comprehensive project.。Due to the large load，The bridge deck was seriously damaged。The construction of this project will accelerate the industrial transformation and development of Jiangnan New Town.，It is of great significance to accelerate the integration of Fuyang into the main urban area of Hangzhou.。
Two、Construction status
Bridge deck milling has extremely high requirements for flatness and construction efficiency.，During the epidemic，Hangzhou Heyuan Machinery Equipment Co., Ltd.，It immediately mobilized a Caterpillar with the fourth national emission.PM620 milling machine participated in the construction。The length of the bridge is 300 meters.，The width of the bridge deck is 24 meters.，Milling depth of 12 cm，In the milling process，PMThe milling efficiency of 620 has left a deep impression on users.。
According to the operator，PMThe milling speed of 620 can reach about 20 meters per minute.，Not only is it fast、High efficiency、Powerful、Save fuel，But also is very convenient to operate and use.，Rated by users“Solid partner”。
Cat®（Carter）PMWhat is the performance of 620 milling machine in the reconstruction project of Zhongbu Bridge?？
Listen to the customer Hangzhou Heyuan Machinery Equipment Co., Ltd.Real feedback and experience of using it.。
1、The client is rightPM620 Evaluation of dynamic performance：
PMThe excellent power performance of 620 has won the praise of users.，During the construction process,“Invincible”The image of a strong man of steel is vividly reflected.。Adopt independent brandCat®（Carter）C18 Engine，Integrated development of engine and complete machine，Information sharing, Optimize matching。Full of power，Production efficiency and fuel efficiency are further improved。
2、YesPM620 Evaluation of reliability：
Leading off-road low emission technology，Hundreds of thousands of units worldwideCat®（Carter）Non-road construction machinery，More than 300 million hours of actual verification，High reliability and durability。
3、YesPMEvaluation of 620 fuel consumption level：
Reduced customer cost of use through proven technology，Consumption of a small amount of urea solution in exchange for fuel savings，Meet the fourth national emission and maintain the same level of low fuel consumption as the third national emission.。
4、Evaluation of engine aftertreatment system：
C18 Zero burden of engine aftertreatment system maintenance，Particle Trap（DPF）Insensible regeneration，No downtime required，Automatically complete soot cleaning，Adequately extend uptime，Improve work efficiency。
5、About the Sealing Performance of Conveying Belt：
The sealing performance of the discharge is very good.，Basically, there is no material spilling.、Material leakage and other phenomena。
6、About Track Performance：
Hydraulic circuit system with diagonal design，Dual hydraulic pumps with four variable displacement motors，It can effectively prevent the road surface from slipping.，Lifelong maintenance-free track，The steering is particularly light，It is very flexible to turn around on narrow roads.。
7、About the operational performance of the equipment：
● Advanced automatic leveling system，Each leveling sensor can be switched freely without shutdown.。
● Adopt vacuum dedusting device，And that dust removal effect is good，Dust can hardly be seen on the construction site.；
● The cutter head and the cutter holder are very convenient to replace.，It's electric、Two manual replacement modes，A pair of knife heads can be changed in half an hour at most.；
● There are three LCD screens.，Distributed on one side of the main console and fuselage，It can be operated by standing on the ground，It is very convenient to use。
Li Gang, operator of Hangzhou Heyuan Machinery Equipment Co., Ltd.“This is a very good milling machine that he has operated.”
Gold Cup and Silver Cup can not catch up with the reputation of customers.。
With the fourth national emission
CAT PMFirst appearance of 620 milling machine，
It shines brilliantly in the reconstruction project of Zhongbu Bridge.，
Once again demonstrated with impeccable excellence.
Its“Deep milling expert”The elegance of，
It has contributed to the smooth hosting of the Hangzhou Asian Games.。
Hard core country four，When burning does not give way！
