Modern flat bar rolling mills at Qingdao, People's Republic of China

Customized control system that optimizes process productivity

Qingdao Iron & Steel Co Ltd

Qingdao Iron and Steel Co Ltd is one of the top ten large enterprise groups in Qingdao city, China. At present, the dominant products of Qingdao Steel are high quality welding steel, steel for steel cord, pre-stressed strand steel, wire rod for PC steel bar, cold heading steel, free cutting steel, prime structural carbon steel, flat spring steel, spring wire steel, wire rod for drawing and construction, and deformed bar, which are used at the industries of automobiles, ship building, mechanical processing and petrochemical and so on. All these products are the national encouraged development products.  


  • Large production rate (complicated with various products, wider speed range)
  • Short delivery and commissioning time;
  • Bar mill control technology improvement (lacking modern bar mill experience for customer)

Our solution  

Whole line ACS800 LV Multidive, HXR LV motor, 800xA 5.1 System, AC800PEC controller, XF801 Fast IO and S800 Remote IO, RMC (Rolling Mill Control Solution)

To meet the tough requirements on high speed and precision needed to control the mill, ABB has customized its standard control system, ABB new generation AC800PEC controller, XF801 fast IO and ACS800 drive system, to meet the special needs of this particular mill. The new IndustrialIT 800xA control systems also include a new profile mill control concept that has been specially developed for this kind of bar mill.

Project Manager Fang Guozhang, Qingdao Iron & Steel, is very grateful to ABB for the new possibilities provided by the mill.  

“We can now roll high quality flat bar. ABB are not only an electrical supplier, but also a partner of Qinggang.”


Main data


Qingdao Iron & Steel Co Ltd.


Qingdao City, Shandong Province, China

Customer need: 

Advanced automation and power system to bar rolling mill with capacity of 600,000 ton annually, to produce high qualified spring, carbon and alloyed steel for application in automotive and construction industries


Drive and control systems and advanced technological control solutions for specific bar mills   


Flat bar mills

Customer benefits:
  • Leverage  a wider range of supply
  • High quality products
  • Maximized productivity
Commissioning year: 2015

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