IRAETA History Introduction
Zhangqiu is renowned as "Hometown of Blacksmiths" and has a long history of forging. For the past two thousand years, from the time of the Han Dynasty, it has been Northern China’s iron center. The Zhuicheng sword recorded in The History of Late Han Dynasty was produced by Zhangqiu blacksmiths. Shandong Iraeta Heavy Industry Co., Ltd. however dates back to Sanzhao Comprehensive Factory, in 1975. As early as the 1950s and 1960s, blacksmiths who had learned the craft from former generations set up the "iron forging" team to go on an expedition across the country. Everywhere they went, they were perceived as being honest, modest, persevering, possessing superior skill, and always ready to help others. With promotion of these fine traditions, starting from Sanzhao Comprehensive Factory and after more than 40 years of development, restructuring and expansion, IRAETA has become an important manufacturer of discs, rings, cylinders, blocks, irregular-shaped forgings and grinding steel balls in China and across the world.


In 2005 

Invested RMB150 million to start building a wind turbine ring forging manufacturing base (Onshore Wind Power Forgings Manufacturing Division, which can be seen in the above picture) 

In 2006 

Our company was officially registered 

In 2007 

Spain's FORJAS DE IRAETA became a shareholder, and the new company name was officially changed to "IRAETA", becoming one of the earliest companies in China to manufacture wind power ring forgings

In 2008 

Received GAMESA certification, and became the first wind power flange supplier in China, certified by GAMESA. 

In 2009 

Received VESTAS certification and became China's first flange supplier certified by the two wind power giants, GAMESA and VESTAS. The company participated in drafting the standards for Ring-Type Forgings of Wind Turbine Generator System of National Energy Administration. The People's Government of Shandong Province awarded the company the title "Advanced Private Enterprises of Shandong Province".


In 2010 

Provided integral forging flanges for the 3.6 MW prototype of China’s first independent offshore wind power generator system. The company received a national utility model patent No. ZL201020102955.5 for the door frame technology for wind turbine generator towers, and became a pioneer in integral forging tower door frames in China.  

In 2011 

Offshore Wind Power Forgings Manufacturing Division commenced operations. It became the first wind power flange manufacturer certified by Siemens. 

In 2012 

Obtained CE CPR certification, and passed GE wind power certification as well as CRN Certification (all provinces). The company provided the complete set of flanges for Dongfeng Automobile 5.5MW and United Power 6MW prototypes, and built a modern logistics center covering a total area of 10,000 square meters. 

In 2013 

Passed the CRCC certification of Brazil’s petroleum agency, as well as ISO/IEC17025 laboratory certification (iLac/CNAS National Recognized Testing Laboratory). The company provided a complete set of flanges for Yunda 5MW and Mingyang 6.5MW prototypes.  

In 2014 

Received API certification of the United States, and passed classification society certifications of the United States’ ABS, France’s BV, Norway’s DNV-GL, Japan’s NK, Korea’s KR, Italy’s RINA and several others. The company provided a complete range of flanges for Goldwind 6MW prototype and established the CNC Machinery Manufacturing Division. 


In 2015 

Established the "Academician Li Yiyi Workstation" with the Institute of Metal Research, Chinese Academy of Sciences. 

The grinding ball project with an annual output of 200,000 tons officially commenced production (The current grinding balls manufacturing division). 

Received certifications from Japan’s METI and Britain’s LR Classification Society. 

Provided several sets of 8MW flanges to Vestas in a single order. 


In 2016 

Listed on NEEQ with stock code 837192.

The comprehensive processing centers for precision CNC commenced operations, and the company introduced Spain’ IBARMIA, South Korea’ Doosan, Qinghai No.1 CNC Machine Tools Co., Ltd. and other multi-axis machining centers. 

Construction began on the Large Forgings Division. 

Provided products for the China Huaneng Group (Jiangsu) Rudong 300 MW offshore wind farm, Luneng Group Dongtai 200 MW, China Longyuan Power Group Jiangjiasha 300 MW and China Longyuan Power Group Dafeng H200 MW and other large offshore wind farms. 


Provided forged valve body for China's first batch of domestic underwater oil and gas valves. 

Obtained civil nuclear safety equipment manufacturing license. 

Provided 60 sets of Siemens 7MW tower transition flanges, and entered the British offshore wind power industry. 

Provided 18 sets of tower drum flanges for Gamesa's first 5.5MW wind farm. 

Provided prototype flanges for the Mingyang 5.5MW and Shanghai Electric Group 6MW projects. 

A 13,500 tons press was put into production. 

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