China's Great Science and Technology
China's Great Science and Technology

Heavy Equipment Manufacturing

October 27th, 2011

China building world’s largest press forge


In the December 2007, China has started the building of an 80,000-ton press forge (800MN heavy die forging press) in Deyang, the southwestern Sichuan Province, paving the way for making large planes, a longtime dream of the nation.

The project, with an investment of 1.517 billion yuan (204.7 million U.S. dollars), has won the approval of the National Development and Reform Commission and is expected to be the world’s largest when it is finished in two and a half years, said Zeng Xiangdong, project director and vice general manager of China National Erzhong Group Co. on Friday.

The 800MN heavy die forging press project has been started under the construction in China Erzhong. This will be the largest die forging press in the world located in China Erzhong . After this project is completed , it will tremendously increase production capacity in the fields of aviation, electrical power and petrochemical industry, and will also meet the requirement of  heavy die & open forgings used for aviation, national defense and civil industries, especially for the large commercial aircrafts in China .

Besides, China Erzhong also has a 160MN hydraulic press which is designed, manufactured, installed and commissioned by China Erzhong itself is the world’s largest open forging hydraulic press with most advanced technology.

a 160MN hydraulic press

A large die-hydraulic press forge is one of the key instruments in making jumbo planes. Only a few countries, including the United States, Russia and France, have such facilities, according to Zeng.

The current largest press forge is 75,000-tons and is owned by Russia. All the press forges currently in China are below 40,000 tons, which are unfit for making key parts of very large planes and hence hinder the development of the aviation industry, equipment and manufacturing.

Chen Xiaoci, vice director of the press forge project, said the machine is designed by China National Erzhong Group and built in the company’s compound.

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The company has produced more than 400,000 die-forgings during the past 30-odd years for China’s aviation industry, used in all the models of Chinese airplanes.

China started to build very large aircraft in 1970, only two years after Airbus went into production, but the project was later shelved despite a promising start.

After a decades-long suspension, the central government last year revived the blueprint in the 11th five-year plan (2006-2010) in order to meet the country’s growing demand for air travel.

To prepare for the very large plane project, China began building its own regional jet, the ARJ-21 — meaning “advanced regional jet for the 21st century” — in 2002.

Only the United States, Russia, France, Germany, Britain and Spain currently have the ability to build very large aircraft, with the United State’s Boeing and Europe’s Airbus taking the lion’s share of the international market.

China National Erzhong Group Co. is located in Deyang in the Sichuan Province.  It was established in 1958, and put into full production in 1971. By the end of the year 2008, it covered a total area of 2.611 million square meters (28.1 million square feet) with total assets of 15.7 billion Yuan (about $2.31B) and 12650 employees.  It is one of the research and manufacturing bases for China’s heavy industries. China National Erzhong Group Co. used to be known as The Second Heavy Machinery Plant, a legacy from the era when major manufacturers were named numerically. In the year 1993, it was renamed China National Erzhong Group Co. and abbreviated to China Erzhong.



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