“The fourth national standard”Implementation enters one month countdown，As an industry leader, Engineer LiuFull attack，Take the lead in realizing the full range of national four excavator productsUpgrade，32 types of national four excavators have completed the national four-stage environmental protection record and sold in batches.，The number of certified product models isTop in the industryAnd continue to increase。

So far，Liugong Guosi Excavator Has Been Sold After 2 Months of Trial SaleNearly a thousand，Far ahead in the industry，Get rave reviews，Bring to global customersNew SolutionsAndSubversive value。

01

 Research and development is the earliest，Longest Validation Time

As early as 2018，Engineer Liu opens it“Guo Si”R & D and reserve in the field，YesThe earliest in the industryConstruction machinery enterprises that started this research。Liugong Guosi Excavator is based on a time-tested power platform.，Non-road fourth with Europe、The combination of the five stages and the iterative technology of the six stages of vehicle use.，At“Fuel saving”“Efficient”Major breakthroughs have been made in other issues.，Really fit in“Double Carbon”Idea，RealizationGreen、Low carbon、Sustainable Development。

Based on this，In 2019, Liugong carried out the field working condition test of the fourth national excavator nationwide.，Conquer the altitude successfully4500mPlateauExtreme working condition、-45℃High and coldExtreme working condition、Heavy load conditionReliability verificationEtc，Cumulative verification time exceeded20000Hour，Stand-alone verification duration exceeds2000Hour！

02

The match is better，Higher overall efficiency

The coverage of the fourth national excavator developed by Liugong is from 1.7 tons to 95 tons，It can be realized from small digging to large digging.Better overall efficiency，More fuel efficient、Smarter、More reliable！It relies on the fourth national configuration and advanced intelligent control system.，Engine Hydraulic Test Bench Introduced into Liugong No.4 Excavator，Simulate vehicle system loading，New generation of electronic control architecture to achieve intelligent control，Accurate matchingThe lower power remains strong.，Lower fuel consumption，Do itTCO（Life cycle vehicle cost）Better。

  

With the latest launch of the new generationFSeries new product 926F MAX+For example，ContinuationESeries of strong genes，Carry out reliable test work in mines with complex working conditions，It has passed the rigorous test of more than 6000 hours for a single machine.，Strong maneuverability，Average fuel consumption is higher than that of other similar productsSave 20%.

03

Blossom everywhere，Trusted by customers

More and more Liugong Guosi excavators are delivered all over the country.，Won Jiangxi、Zhejiang、Hubei、Shanxi、Shandong、Inner Mongolia、Xinjiang and other customersUnanimous recognition and trust，Widely used in highway、Railway、Airport、Port、Coal mine and other large earthwork and quarry and other working conditions，For constructionGreen and beautiful homeContribute to Engineer Liu's strength。

    

04

Insensible regeneration，Smarter aftertreatment systems

“Guo Si”After the formal implementation of the emission standards，The necessary post-processing system of the fourth national model is very important to the overall operation of the machine.。Liugong Guosi Excavator is equipped with the world's leading aftertreatment system，Already in the European and American marketsAdequate verification，Built-in non-perceptive soot cleaning function，No special shutdown required，Can be completed in the course of workIntelligent regeneration，Effectively improve machine attendance time，DadaImprove operational efficiency。

  

Main pump

  

Post processor

In addition，AtSCRIn a selective catalytic reduction system，UreaAs a catalyst，Reduces harmful nitrogen oxides in the tail gas to nitrogen and water，So that that requirement of environmental protection is met。Liugong Excavator Post-processing SystemEfficientSCRTechnical route，Capable of realize urea injection with high precision，Reduce the risk of crystallizationMore economical。

  

A conspicuous urea tank

  

Three-parallel radiator and urea indicator light

Urea is consumed while the machine is running，Therefore, it is necessary to pump back the urea solution during shutdown.，Prevent it from being trapped in the system piping，Protective aftertreatment system。SweetIndicator designIt can be seen visually whether the urea solution has been pumped back，Play a full warning role.。

Engineer Liu will“Guo Si”Model upgrade as a new starting point，Continuously achieve key core technology research，With high quality products and services，It constantly demonstrates the strength of Chinese manufacturing in the global scope.。