Changsha New Quality Concept: "Big Mac" is abundant here

This year marks the 75th anniversary of the founding of the People's Republic of China, and it is also a crucial year for achieving the goals and tasks of the 14th Five-Year Plan. When the new round of scientific and technological revolution and industrial transformation forms a historical intersection with China's accelerated transformation of economic development mode, the development of new quality productive forces has become an important measure to consolidate the material and technological foundation of building a modern socialist country in an all-round way, and it is an inevitable trend.

Those who observe the situation are clear, those who analyze the situation are wise, and those who follow the trend become successful. Based on the Guangdong-Hong Kong-Macao Greater Bay Area, we will enter the key cities covered by major regional strategies, look for the shining highlights of China's scientific and technological innovation and industrial innovation, and open the third quarter of the in-depth research on the digitalization of enterprises in the Guangdong-Hong Kong-Macao Greater Bay Area - from May to August this year, Yangcheng Evening News joined hands with many media across the country to carry out a national tour of new quality productivity, and presented readers with a "new" picture of the surge of scientific and technological innovation, the rise of industrial iteration, and the surging momentum of digital intelligence through in-depth research and reporting.

Large-scale machinery produced by Sany Heavy Industry

Which excavator technology is stronger? If the answer points to a certain city in China, it must be Changsha, Hunan, which has the title of "Construction Machinery Capital", where Sany Heavy Industry No. 18 Factory, which was rated as a lighthouse factory in 2022, is located. In the No. 18 factory of Sany Heavy Industry, Yangcheng Evening News and Changsha Evening News jointly went deep into the front line of the industry to explore the "secret" of building new quality productivity.

Large-scale machinery produced by Sany Heavy Industry

The factory is "rigid and soft"

A pump truck rolls off the assembly line every 45 minutes

The intelligent transformation of Chaonaoliang Coal Mine is the first impression that many people walk into the No. 18 factory of Sany Heavy Industry - not only the production area is large, it takes a long time to complete it, but also there are many heavy components and large-scale production equipment, and the products off the production line are also huge, and the longest boom can reach 86 meters.

"Big guys" with long booms

These "big" products with long booms, called pump trucks, are concrete pumping equipment used by workers to pump concrete in high-rise buildings. Here, a mediocre steel plate is intelligently produced through the whole process of blanking, cutting, welding, assembly, etc., and finally can produce pump trucks of different models and specifications, leaving people with the impression of being both strong and hardcore.

"Hunky"

A set of data is used to show the effectiveness of the intelligent transformation of No. 18 factory: a pump truck can be rolled off the assembly line every 45 minutes, with an annual output of nearly 10,000 units; The entire production cycle from steel plate to pump truck has also been significantly shortened, from 31 days before the transformation to 12.7 days after the transformation, the manufacturing cost of a single pump truck has been reduced by 29%, and the overall personnel efficiency has increased by 98%.

In addition to giving a strong impression, Factory 18 is not "old-fashioned" and can carry out very flexible and flexible production.

Large machinery

"Why it is difficult to engage in intelligent manufacturing in the construction machinery industry, the reason is that we are a typical discrete production model, known as 'steel tailor', and a variety of small batch production, the output ranges from hundreds to thousands of units, the core is how to break through flexibility", Liu Xiangju, the person in charge of the process of Sany Heavy Industry Pump Division, told reporters.

Specific to the implementation of flexible production, Liu Xiangju used "the devil is in the details" to describe this process, he said, for example, in the unmanned group welding, the pump truck turntable weighing 2.6 tons should first align the two parts and then weld, originally thought that it could be easily solved with robot vision technology, but because the accuracy of the product is required to be within 0.1 mm, the general technology can not be reached, they have overcome a series of technical difficulties after more than a month.

After intelligent transformation, the No. 18 factory can realize mixed line production, and the two general assembly lines can carry out mixed and flexible production of 69 products.

In 2022, Sany Heavy Industry No. 18 factory was rated as a "lighthouse factory".

"If you don't turn over, you will capsize"

Respond to cyclical fluctuations with digitalization

In 1989, Liang Wengen, Tang Xiuguo, Yuan Jinhua, and Mao Zhongwu took 60,000 yuan scraped together to build a workshop-style factory in an abandoned farm in Daotong Village, Maotang Township, Lianyuan, Hunan. Lacking funds, they built their own factories, welded roof trusses, painted equipment, installed equipment, and transported materials......

In 1991, the company officially changed its name to Sany Group, and entered Changsha, Hunan Province in 1994, entered the field of equipment manufacturing, and grew into one of the top 500 enterprises in the world by market value by 2011. However, from 2011 to 2016, as the global construction machinery industry cooled down for five consecutive years, Sany Group also began to feel an unprecedented sense of crisis. In order to cope with the challenge, in 2018, Liang Wengen, the founder of Sany Heavy Industry, once said at the two sessions, "Sany's digitalization will capsize if you don't turn over."

Road machinery

At the beginning of 2019, the construction of the lighthouse factory was first started at Plant 18. "At that time, there was no case for digital transformation in the construction machinery industry to learn from, and the lighthouse factory was to reflect the leading role", Liu Xiangju said, before the transformation, the factory adopted a single-point automated production model, and the equipment was isolated from each other. In this regard, Sany Heavy Industry has overcome thousands of problems and used 11 industry-first technologies and 59 key technologies to transform the factory. In 2022, Plant 18 became the second certified lighthouse factory in the global heavy industry industry after Sany Heavy Industry's Beijing Pile Driver Factory.

In the construction of lighthouse factories, the industrial Internet platform created by Tree Root Internet plays a key role.

Statistics show that Sany Heavy Industry No. 18 Factory can generate more than 30TB of big data every day, which is equivalent to the mobile phone network traffic generated by a county town with a population of 200,000 in a day. Qi Ting, a long-term digital transformation consulting expert of Sany Heavy Industry, said that the amount of data mainly depends on two factors, one is the number of fields collected, and the other is the frequency of collection.

Sany Heavy Industry No. 18 Factory

Qi Ting summarized this process as "three present and four table interconnection", that is, through the camera management of the scene, reality, and present, and collect energy consumption data such as water, electricity, gas, and oil meters, and the "interconnection" is to move the management of the "four tables" to the "root cloud platform" around the above three sites, so that the factory operation is transparent everywhere. At present, Sany Group has more than 18,000 operating equipment networked.

It is precisely the "transparent factory" built by the tree root interconnection, combined with digital twins, big data, AI and other technologies, that the No. 18 factory can achieve "from rigid to soft" and better cope with the cyclical fluctuations of the heavy industry market.

Sany Heavy Industry No. 18 Factory

Settled in Changsha for 30 years

The "lighthouse" experience has empowered more than 130,000 enterprises

This year, it has been 30 years since Sany Heavy Industry went out of the mountains and settled in big cities. At present, Changsha, Hunan Province has become the world's third largest construction machinery industry agglomeration after Illinois in the United States and Tokyo, Japan, the total assets, operating income and profit proportion of the construction machinery industry are in the forefront of the country, gathering a large number of well-known construction machinery enterprises such as Zoomlion, Railway Construction Heavy Industry, Sunward Intelligence.

In 2022, the digital large screen of Sany Heavy Industry No. 18 Factory, which was rated as a "Lighthouse Factory".

The settlement and development of Sany Heavy Industry in Changsha has also led to the agglomeration and coordinated development of related industrial chains in the surrounding areas.

Taking hydraulic parts, one of the key basic parts of construction machinery, as an example, in 2021, Shanghai Norma Hydraulic System Co., Ltd. signed a contract with Changsha Economic Development Zone to provide "doorstep service" for Changsha construction machinery host enterprises; In 2023, Shenzhen Sante Hydraulic Technology Co., Ltd. will be relocated to Changsha as a whole, and 158 employees from the original Shenzhen factory will also move to Changsha.

Large-scale machinery produced by Sany Heavy Industry

The lighthouse light projected by Factory 18 is shining to the wider world through the output of digital experience.

Sany Heavy Industry No. 18 Factory

"The root cloud platform supports more than 1,100 common industrial protocols, which can realize massive device access, and also precipitates platform capabilities, which allows us to empower some mature experience externally," Qi Ting mentioned, "Root.com is headquartered in the Guangdong-Hong Kong-Macao Greater Bay Area, which not only has a broader market, but also facilitates us to attract more digital talents."

Sany Heavy Industry No. 18 Factory

At present, there are more than 130,000 enterprises serving Tree Root Internet, covering dozens of industries, including equipment manufacturing, automobiles, parts, iron and steel metallurgy, consumer goods, etc. In the Guangdong-Hong Kong-Macao Greater Bay Area, Tree Root Internet has served more than 200 local manufacturing enterprises such as Guangqi Honda and Jianlibao, empowering the digitalization process of many enterprises and industrial clusters.

Content source: Yangcheng Evening News