April 20，It integrates 158 innovative scientific research achievements.、The world's largest tower crane with 305 invention patents was launched in Changde Tower Crane Intelligent Factory of Zhonglian Heavy Branch.，This is another self-breakthrough of Zoomlion.，It is also another historic breakthrough in the development of advanced manufacturing in China.。Its appearance will lead to the heavy industry in China.、Provide more advanced solutions for building industrialization，Further enhance the influence and competitiveness of Chinese brands in the field of global tower cranes。

Cao Zhiqiang, Secretary of Changde Municipal Party Committee, announced that the product was officially offline.，Party Secretary of CCCC Second Harbor Engineering Co., Ltd.、Chairman You Ruikai，Party Secretary of Zoomlion、Chairman、CEOJoint Launching Ceremony of Zhan Chunxin。The ceremony was held by the Deputy Secretary of the Changde Municipal Party Committee.、Mayor Zhou Zhenyu presided，Vice President of Zoomlion、Tang Shaofang, General Manager of Construction Hoisting Machinery Company, delivered a speech.，Changde City、Relevant leaders of the district government，CCCC Second Harbor Engineering Bureau、Senior Management Team of Zoomlion，And industry associations from all over the country.、Experts in the industry、Leader of safety supervision station、More than 600 people, including construction units and customer representatives, witnessed this historic moment.。

▲Off the lineCeremony site

Great Power's Heavy Equipment Helps Build National Super Project

World's Largest Tower CraneR20000-720 is jointly developed by Zoomlion and CCCC Second Harbor Engineering Co., Ltd，Rated lifting moment 20000 t/m，Maximum lifting capacity 720 tons，Maximum lifting height 400m，It is equivalent to lifting 500 cars to the height of 130 stories at a time.。The product integrates 158 innovative scientific research achievements.、305 invention patents，These include more than 60 core key technologies and 12 world-first technologies.，Climb the peak of the world's king of tower crane，It is a veritable heavy weapon of great power.。

▲World's Largest Tower CraneR20000-720

It is understood that，R20000-720 After Offline Delivery，Will be usedWorld's Largest Span Three-Tower Cable-Stayed Bridge——Maanshan Rail-cum-Road Yangtze River BridgeIn the construction of the project。

The Ma'anshan Changjiang River Rail-cum-Road Bridge is a three-tower steel truss cable-stayed bridge，Among them, CCCC Second Harbor Engineering Co., Ltd.CMSG-Construction mileage of Bid 2DK51+687（The main bridge of the Yangtze River Bridge）~DK57+329.218（Yangtze River BridgeFCenter of pier 1），Total length approx. 56 42.218 meters，It mainly includes the south main tower and the superstructure of 1km main bridge.、114 combined highway and railway piers of the approach bridge、12-span railway beam and 228-span upper highway beam。R20000-720 can fully meet the hoisting of the steel structure of the bridge tower，It will provide solid equipment guarantee for the project construction.。

Perfect technical achievement“The strongest in the world”

“OursR20000-720，In counterweight technology、Structural technology、Innovations and breakthroughs have been made in intelligent control technology and other aspects.，Which solves the problem that the super-large tower crane is difficult to operate in strong wind,、High humidity、Many World Difficult Problems in Operation under Complex Extreme Conditions such as Heavy Load。”Zoomlion responsible person said.。The application of these technologies makes this“The largest in the world”Be well-deserved“The strongest in the world”。

According to him，R20000-720 applies the mobile counterweight technology pioneered by Zoomlion in the industry.，This technology allows the balance weight to move precisely with the change of the lifting moment.，Achieve lifting performance 60%A substantial increase in the above。

In addition，R20000-720 has also created a new load-bearing lightweight structure configuration and heavy-duty split structure design.，On the premise of ensuring high bearing capacity，Compared with the conventional scheme, the weight of the upper structure of the tower crane is reduced by 20 percent%Above，Solved the problem、Install、Dismantling difficult problems，It is more convenient to use。

▲World's Largest Tower CraneR20000-720

And in order to make the heavy device more sensitive,，Zoomlion has also made great efforts in intelligent control technology.。Multi-source information fusion for deep developmentETIIntelligent control system，Application of 230 intelligent control strategies，50 intelligent technologies，Achieve millisecond response，LetR20000-720 is in“Big”And“Steady”In the meantime，Realized“Hurry up”And“Quasi”。

World's Largest Tower CraneR20000-The successful offline of 720，It indicates that Zoomlion has mastered the mature big tower technology.，Stand at the forefront of industry development。

Intelligent Production Line Enabling Tower Manufacturing

As a refresh“World's Largest Tower Crane”A heavy tool for recording，Is its production and manufacturing a larger amount of work?、Longer production cycle？For this problem，Zoomlion responsible person said.，“R20000-The overall implementation time of the 720 project is 33280 man-days.，It is equivalent to 120 people working continuously for 10 months.。But through intelligent manufacturing,，Key management and control of 8 types of key control projects，Evaluation and development of 18 concurrent projects，It took only 8 months from design to offline.，Set a record for the fastest lead timeW12000-450 is two months faster.，Create another speed miracle。”

After 67 years of extreme exploration，Zoomlion continues to accumulate in the field of construction machinery、Break through、Sublimation，Create something that can be called“The realm of freedom”The world's leading R & D and design platform，The world's largest tower crane intelligent factory has been built.，Leading Product Upgrading with Intelligent Manufacturing。

It is understood that，Zoomlion Tower Crane Intelligent Factory currently has 40 intelligent production lines.，Including 12 unmanned black lamp production lines。Through the intelligent production line、Flexible chemical clothing、Support of High-precision Heavy Machining Equipment，And the input of nearly a thousand tower craftsmen.，The manufacturing capacity of Zoomlion's super-large tower crane has achieved a breakthrough in quantity and quality.。At present，Zoomlion Tower Crane Intelligent Factory has been able to achieve 500-The production of 13 types of large tower cranes with 20000 tons of meters is fully covered.，The products produced can meet almost all the lifting needs of large-scale lifting at present.。

▲Zoomlion Changde Tower Crane Intelligent Factory Production Line Scene

Extreme product performance strength，Bring hot market performance。Many large tower cranes of Zoomlion have already stood towering on the great rivers of our country to help construction.。Ceremony site，Zoomlion also held a signing ceremony for a series of large tower cranes.，After delivery, these products will contribute new strength to China's hot construction.，Ensure the smooth progress of many major projects。

It is reported that，The market share of Zoomlion Tower is in the absolute leading position in the industry.，It is the largest global delivery.、Large tower manufacturer with the strongest production capacity，At present, there are dozens of super-large towers being produced simultaneously in the tower crane intelligent factory.。

“To regard oneself as the greatest in the end，Therefore, it can become great.。”Zoomlion regards every new breakthrough as a new starting point for innovation.，Surpass yourself again and again，Break the world record again and again.。Industry experts said，This timeR20000-Successful offline of 720，It marks the technology of Zoomlion in tower crane.“No man's land”The exploration goes further，“The age of the Great Tower”The pilot advantage is more obvious.。