China's world-largest 18,500-ton oil-press machine
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China's world-largest 18,500-ton oil-press machine
November 3, 2011
China built the world's-largest oil-press machine that can generate 18,500 tons of force.
On June 28 2010, CITIC Heavy Machinery Company launched a new project for an 18,500-ton oil-press machine. The beam has been successfully put in place and the workers were busy with subsequent installation and debugging. This marks the world’s most-advanced 18,500-ton oil-press machine (via flat-dieforging), which was completely installed by CITIC.
As the biggest and most-advanced oil-press machine, the core components include 5.2m turntable bearings. Each bearing has a 3.4m outer diameter for ball-and-roller combination. The bearings can withstand the largest axial and radial loads. They are manufactured by Luoyang Heavy-Duty Bearing Co., Ltd. The bearings are subject to an all-around multilevel inspection to ensure top quality.
Having a ball-and-column composite structure, this bearing will support not only more axial force, but also radial force.
A 438-ton huge steel ingot was successfully forged by the 18,500-ton free-forging hydraulic oil press.
The new CITIC HIC project, with its 18,500-ton oil hydraulic press centrepiece, was completed on schedule; marking the establishment of an advanced heavy-equipment manufacturing system with a RMB3.9 billion investment from CITIC Heavy Industries.
At 6:36pm on May 22 2008, the advanced open-forging equipment (the 18,500-ton oil hydraulic press machine) was poured successfully. The weight of the upper beam was 520 tons. This heavy casting had a strict requirement on temperature, safety of equipment and team cooperation, and the process was complicated; since the pouring was very difficult. In the history of China's foundry industry, it is a miraculous achievement.
It has been reported that this world-largest oil hydraulic press is the core equipment of “New Heavy Machine Engineering”, which received an investment of 3.9 billion yuans from CITIC HEAVY INDUSTRIES CO., LTD. The equipment has a height of 20m, depth of 7.5m, and the whole machine weighs about 4,000 tons.
A 438-ton huge steel ingot was successfully forged by the 18,500-ton free-forging hydraulic oil press.
The annual production capacity of large forgings at CITIC HEAVY INDUSTRIES CO., LTD could reach 150,000 tons after this “giant” has been put into use.
One of the core components of this “giant” oil hydraulic press is support-bearing E8331-7P which was independently developed, designed and produced by Luoyang Heavy-duty Bearing Co., Ltd. It has also entered the operating phase and passed the quality & performance tests together with the oil hydraulic press. The support bearing has an outer diameter of Φ3400mm and belongs to the rare single-row double-row cylindrical roller design with a single-row ball composite structure. At the same time, the application of LTZC E8331-7P bearing in this world-largest most-advanced “giant” oil hydraulic press fully proved the technical strength and advanced production technology of Luoyang Heavy-duty Bearing Co., Ltd. in China’s bearing technology.
On Oct 10 2011, a 438-ton huge steel ingot was successfully forged by the 18,500-ton free-forging hydraulic oil press, the largest and most advanced forging press in the world. It proves China has reached the international advanced level for large-scale forging and pressing.
The 438-ton steel ingot is the large forging piece provided for the 4,300 rolling mill of Xingcheng Special Steel Plant in Jiangxin, east China’s Jiangsu Province. A double vacuum smelting system has been used in the forging process and the interior quality of the forged piece strictly complies with the criteria from DANIELI assessment.
LTZC, Luoyang Heavy-Duty Bearing Co., Ltd., which was founded in 1992, is one of the largest bearing production bases in China. From industry to the military, Luoyang bearings play a decisive role. LTZC is now a subsidiary under CITIC HEAVY INDUSTRIES CO."
[Note: Thank you to SweetGrape for the newslink. I edited the article for ease of reading.]