63.99%！ 4500！ CCTV looks at the "Chinese vitality" in the data

Data is a "barometer" of economic development and a "measure and weight" for evaluating the effectiveness of work. On September 26, CCTV's "Morning News World" broadcast a series of reports on "China's Vitality in Data" to feel China's economic momentum from the "Excavator Index". This index shows the operating rate and working conditions of various types of construction machinery and equipment, and is known as the "barometer of China's economy".

The national infrastructure is stable and improving

CCTV financial excavator index shows that the overall operating rate of construction machinery in August this year was 63.99%, and the average operating rate has exceeded 60% since this year.

Li Haowei, National Industrial Internet Big Data Center Data Institute: On the whole, although our country has been affected by some epidemics this year, the operation of construction machinery is still in a state of relatively steady growth.

From a regional point of view, from January to August this year, the northeast, northwest and southwest provinces of the construction heat to maintain growth, with the introduction and implementation of a package of policies to stabilize the economy, 17 provinces and cities in July the overall operating rate of machinery to achieve positive growth month-on-month, Jilin Province is in August to hit the highest point of the national operating rate this year - 78.01%.

In addition to infrastructure construction, in construction machinery and equipment, reach stackers and forklifts and other equipment are used for container loading and unloading in ports, which are closely related to import and export trade. This year, the provinces and cities with active foreign trade are mainly concentrated in the southwest, central China, northeast and other regions, and many inland provinces and cities have performed well. In August, the operating rate of port equipment in Sichuan Province reached 88%, the highest this year.

A historic breakthrough has been made in major equipment

In recent years, many major equipment in China have made historic breakthroughs, such as 4,000-ton crawler cranes and 2,000-ton crawler cranesAll-terrain cranes, as well as more than 100 tons of hydraulic excavators, etc., construction machinery and equipment continue to move towards the high-end. Next, let's take a look at a domestic "Big Mac" - the largest tonnage crane in China at present. Not only can it lift up to 4,500 tons, but it can also do fine work down to the millimeter.

Not long ago, at the refining and chemical integration construction site in Longkou, Shandong, a reactor with a height of 32.7 meters and a weight of more than 1,400 tons was hoisted to the designated position, and the hoisting equipment was the 4,500-ton crawler crane with the largest tonnage in China. Don't look at it as a behemoth, but the position of the hoisting is accurate to the millimeter.

Zhang Yang, vice president of Zhejiang Sany Equipment Research Institute: Our car is equipped with a variety of sensors, and if we move a handle, it can move a little bit to ensure that we will not have an impact when we finally hit the hole.

Large-tonnage cranes are expensive and have long production cycles, and have relied on imports for more than a decade. In the process of more than 10 years of research and development, the scientific research team has cooperated with many domestic universities to use digital prototypes to conduct repeated trial and error experiments.

Zhang Yang, vice president of Zhejiang Sany Equipment Research Institute: We made a digital prototype, which is equivalent to a physical machine, and we also made it exactly the same as it on the computer, including the electromechanical and hydraulic power systems, and then jointly simulated.

After more than 10 years of trial and error, the domestic large-tonnage crane can finally show its skills in the construction of major projects, not only the heaviest lifting tonnage in the world, but also deformation, the herringbone arm system is wide below and narrow above, which not only improves the stability of the crane, but also disassembles 4500 tons into two 2000-ton classes that operate independently, and the modular design not only meets the lifting needs of various weights of the construction party, but also saves the cost of crane loading and unloading, transportation and other links.

In addition, before construction, the company will also carry out "tailor-made" for each project operation needs to ensure the safety of the project, while gradually realizing the localization of the material production of crane parts, reducing manufacturing costs, and driving upstream and downstream enterprises to work together.

Zhang Yang, vice president of Zhejiang Sany Equipment Research Institute: We cooperate with well-known domestic steel mills, one is steel plate, the other is steel pipe, and it can be delivered in three months. We've been building a crane for less than a year now, the cost has been cut in half, and the mills have started to export the steel we use abroad.

Content source: CCTV News