Recently，The main project of the Luoshan Yangtze River crossing project in Yueyang, Hunan, has been completed.，ForNanyang—Jingmen—Changsha 1000kV UHV AC Power Transmission and Transformation ProjectLay a solid foundation for smooth operation。

A total of 6 new iron towers were built in the project.，AmongSpanning tower 2 base，They are located in Jingmen City, Hubei Province and Yueyang City, Hunan Province.。The crossing tower is 371 meters high.，47 meters higher than the Eiffel Tower.，The single base tower weighs 4400 tons.，YesThe highest in the world、The heaviest、UHV transmission tower with the largest tower head size。

The installation of two crossing towers is one of the key control nodes of the project.。The section of the steel tube crossing tower changes greatly.，The structure is sparse，Some structural members are long at the root and heavy individually.，Some parts have small root openings and high precision.。These characteristics put forward higher requirements for the adaptability of lifting equipment.。

（Note：Iron tower root opening refers to the distance between tower legs.）

Mr. Fan of Hubei Zhuanzhu Construction Engineering Co., Ltd.：“The construction party requires that the hoisting equipment shall have effective hoisting height and matching hoisting capacity for hoisting large parts.，It is also convenient to lift small pieces.，The micro-mobility is high。In order to satisfy the condition，We sentSCC4000A-The crawler crane undertakes the hoisting task.。”

  

Hoisting site，SCC4000A-2 Use 84mMain arm+78mTa Kuang，130tCarry out construction under super-lift working condition，Slowly lift one part after another，Gradually achieve precise positioning，Complete the docking。

Mr. Fan said：“This equipment is very professional.，Relative to products of the same tonnage，It has a larger undercarriage.，And the safety of the operation is further ensured when the large parts are hoisted.。When lifting small parts at high altitudeThe accuracy is very high，Millimeter feed，You can move an inch。”

SCC4000A-2. Strong applicability，It has 8 working conditions.，It can meet the needs of wind power、Shipbuilding、Architecture、Thermal power、Municipal、Construction needs in petrochemical and other fields。

  

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The crossing tower was successfully hoisted.，Help Nanyang—Jingmen—Changsha 1000 KV UHV AC Power Transmission and Transformation Project Press the Acceleration Key，It is scheduled to be put into operation at the end of October.，At that time，It will significantly improve Hubei and Henan.、Power exchange capacity between Hubei and Hunan provinces，Achieve wind、Light、Water、Multi-energy complementation of fire and optimal allocation of resources across provinces，It is of great significance to promote the economic and social development of central China.。