A bridge flies over Lingdingyang.，Lingdingyang is not Lingding.。Recently，News released by Guangdong Communications Group，Shenzhen-Medium Passage Passed Handover Acceptance，It marks seven years of preparation.、After seven years of hard work, the world-class cross-sea cluster project has successfully completed various construction tasks.，Pass the engineering quality“The big test”，It marks that the Shenzhen-Medium Passage of the world-class cross-sea cluster project is about to open to traffic.。

The Shenzhen-Zhongshan Bridge is a national highway network.G2518 Key Control Project across the Pearl River Estuary。Item set“Bridge-Island-Tunnel-Underwater communication”In one，The total length is about 24 kilometers.，It is one of the most difficult cross-sea cluster projects in the world.。

Poly Changda Engineering Co., Ltd. has actively participated in the construction of this super project.，It has successively purchased the concrete mixing of Nanfang Road Machine.、Many sets of equipment, such as fine sand making equipment, are used for project construction.。From gravel to mixing，Nanfang Road Machinery has customized the overall solution of green building materials for Poly's long body.。

In the project construction of Shenzhen-Medium Passage，Fine sand treatment for front end，Poly grew up and bought two sets of Nanfang Road Machine.V7-150 and a setS3-2060 Machine-made sand production equipment，Producing machine-made sand by using tailings of surrounding mines as raw material，Realize intelligence、Efficient、Environmentally-friendly factory production of sand and gravel aggregate。

Nanfang Road Machine Sand Making Equipment，Produced high quality machine-made sand，Possess gradation continuity、The grain shape is round、Controllable powder content and the like.，In the Shenzhen-Zhongshan Bridge Project，Production of high performance concrete using machine-made sand，Can effectively improve that durability of the concrete，Meet the needs of various production。

In addition to high-quality machine-made sand equipment，The concrete mixing equipment of Nanfang Road Machinery has also been successfully applied in the construction of Shenzhen-Medium Passage Project.。In the deep and middle passageS08 contract section，Poly grew up and bought two sets of Nanfang Road Machine.HZN150 type mixing plant，Production of self-compacting concrete for immersed tube pouring of submarine tunnel。

Nanfang Road MachineHZN150 concrete mixing plant equipped with vertical shaft planetary mixing host。Planetary mixing main machine adopts vertical shaft planetary countercurrent bidirectional mixing mode.，Has a more complex stirring trajectory，Low noise、High torque、Superior and stable performance，Different concrete quality characteristics can be met、Advanced new mix proportions and non-traditional aggregate mixing requirements，Solve the energy consumption of high-quality precast concrete、Capacity and efficiency issues。

Since putting into production，Nanfang Road MachineHZNPlanetary mixing main machine carried by 150 concrete mixing station，Powerful performance，The quality of the produced concrete is stable.，And that workability is good。In order to ensure production，Planetary mixing main machine does not drop the chain at the critical time，Continuous production for 8 days and 8 nights，Successfully completed the construction task of deep-medium channel sinking segment，Meet the requirements of project use，Won the recognition of customers。

The Shenzhen-Zhongdao Passage is not only a passage across the east and west sides of the Pearl River.，It is also the main artery of the development of Shenzhen, China and even Guangdong, Hong Kong and Macao.。With the opening of the Shenzhen-Zhongshan Bridge，Nanfang Road Machinery will continue to take practical actions to promote urban integration in Dawan District.，To contribute to the creation of a new pattern of transportation development in Dawan District。