There is“World Bridge Museum”Known as Guizhou.

Be known as“A crack in the earth”On the Huajiang Grand Canyon

Future“The highest bridge in the world”——

The construction of Huajiang Canyon Bridge on Lu'an Expressway is in full swing.

Several Zoomlion tower cranes are here.“Serve”

Zhengyi“Made in China”Achievement“Chinese speed”“Height of China”

▲ZoomlionWA7527-20KBTower Crane Helps Construction of Main Tower of Huajiang Gorge Bridge

“Since March，Main Tower 5 Average Daily‘Grow tall’0.8 meters，It far exceeds the conventional steel truss suspension bridge.‘Day length’0.The average level of 6 meters，At present, the bridge construction in mountainous areas in China，‘Long’The Fastest Suspension Bridge。”Liu Shengtao, executive deputy chief engineer of the seventh section of Liuzhi-Anlong Expressway, said.。2 sets of ZoomlionWA7527-20KBThe flat-head tower crane is here to help build the main tower of the bridge.。

It is well known，The construction of the main tower of the bridge is often“The hardest nut to crack”，This is especially true for the Huajiang Gorge Bridge project.，Affected by canyon wind，The wind field here is complicated，The maximum wind speed monitored was level 12.。No.5 main tower is the highest cable tower of Huajiang Canyon Bridge.，The tower is 262 meters high.，Equivalent to more than 80 stories high，Hoisting construction here，It has extremely high requirements for the performance of the tower crane.。ZoomlionWA7527-20KBFlat-top tower crane，Short arm length, excellent lifting performance，Maximum lifting capacity up to 20 tons，The maximum lifting speed is 95 meters./Minute，75m boom length, boom tip can lift 2.7 tons，Be in the leading position in the industry。

WA7527-20KBThe safety and maneuverability of the flat-top tower crane are also excellent。In terms of security，WA7527-20KBIt not only has triple protection of lifting capacity、Torque double protection，Strictly prevent overloading，It is also equipped with triple protection of lifting height and anti-impact roof.、Amplitude double-protection anti-collision vehicles、Lectric control system intelligent detection protection anti-slip hook、Zero-speed hover and other safety technologies。In addition，WA7527-20KBThe jib is connected by pin shaft.，Very strong resistance to sudden unloading and accidental collision。

In terms of handling performance，New frequency conversion slewing system，Can letWA7527-20KBInstantaneous response of start and stop during hoisting，There is no jitter in the whole process、Parking without swing back,Run more smoothly，It can also achieve millimeter-level ant speed.，Up to 5 mm minimum/Seconds。

At present，2 setsWA7527-20KBThe flat top tower crane has been installed to a height of 280 meters.，The No.5 main tower faces the No.6 main tower across the gorge.，High pillars rising from the ground stand on the cliffs.，The Beipan River under the bridge is like a blue ribbon lying quietly in the embrace of the Grand Canyon.。

It is understood that，Huajiang Canyon Bridge is the key control project of Lu'an Expressway.，The vertical height between the bridge deck and the water surface is 625 meters.，After completion, it will refresh the world record of the vertical height of the bridge deck from the water surface in mountainous areas.，Become the world's first Takahashi。Zoomlion Tower Crane Will Continue to Have Good Lifting Performance、The operation is stable、Control safety and other advantages，Continuously provide solid equipment guarantee for project construction。