Open / Close Advertisement

Siemens to Supply Drive Systems for Angang’s New Hot Rolling Mill

 

Siemens AG’s Industrial Solutions and Services (I&S) Group was recently awarded a contract to supply the main drives and associated control technology for a new hot strip mill for the Anshan Iron & Steel Group Co. (Angang) in China. The contract is worth around EUR 22 million.

Air-cooled cycloconverters require fewer power components and less mounting space for the same output power compared to other drive types.

Angang is already using cycloconverter technology to operate a large number of drives in its hot and cold rolling mills. Plant personnel are thus familiar with cycloconverter operating principles, and will require little additional training for the new motors.

Siemens’s scope of supply includes the main drives for the two roughing stands and the seven-stand finishing mill. The cylindrical-rotor synchronous motors with a total output of 81 megawatts are powered via Simovert D cycloconverters.

The motors are manufactured by the Siemens AG Dynamowerk Berlin. The edging mill stands and the three downcoilers are driven by synchronous motors operating with Simovert Masterdrive low-voltage converters. The project also includes supervision of installation and commissioning of the drives.

Angang’s new hot rolling mill, which will be capable of a maximum strip width of 1430 mm, is part of an ongoing capacity expansion project. The drive equipment will be delivered, installed and commissioned in early 2007.


Angang is one of the largest iron and steel producers in China. The company operates a production complex with an annual capacity of some ten million tonnes of pig iron and raw steel in the city of Anshan. The client portfolio for Angang's products includes the automotive and shipbuilding industries. They also supply structural steel, railroad rails and metal sheet for the manufacture of household goods.