Siemens to revamp bar mill in Brazil

Gerdau Mogi das Cruzes invests in flat bar production

Linz, Austria, (PresseBox) - The Brazilian steel producer Gerdau S.A. has given Siemens VAI Metals Technologies the order to revamp the bar mill at its Mogi das Cruzes location for the production of flat bar. For this purpose, the intermediate train, the finishing train and the cooling bed will be revamped. The supply includes the mechanical equipment, the mechatronical packages and the complete electrical and automation systems. The upgraded plant is scheduled to commence production in early 2013.

The Gerdau plant in Mogi das Cruzes, state of São Paulo, specializes in producing long rolled products for the construction industry. The bar mill has a capacity of around 260,000 metric tons per year. After completion of the revamp, flat bar with widths between 50 and 106.6 millimeters and thicknesses from 5.4 to 51 millimeters will be rolled here. To achieve this, Siemens will modernize the combined intermediate and finishing train and the cooling bed.

The intermediate/finishing train is to be equipped with five new Red Ring stands in HVHVH configuration, an automatic repeater, two crop shears, and new roller tables. In the entry section of the cooling bed, a dividing shear will be installed. To be able to retard the cooling process to specific time targets when necessary, the cooling bed will be fitted with devices for handling programmable stacks of the rolled flat bar. This will make it possible to set the metallurgical properties of the steel bar precisely.

Siemens will also supply the basic automation and Siroll mechatronics packages for control of the rolling stands and the shears. The scope of supply will also include electrical systems such as medium-voltage switchgear, low-voltage distribution, transformers, and motors for the drives of the rolling line, a motor control center and an uninterruptible power supply.

The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of innovative and environmentally friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the Sector enhances its customers' productivity, efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies. For more information, visit

Further information about solutions for steel works, rolling mills and processing lines is available at

Siemens VAI Metals Technologies GmbH & Co

The Metals Technologies Business Unit (Linz, Austria), part of the Siemens Industry Sector, is one of the world's leading suppliers of plant construction and engineering in the iron and steel industry as well as in the flat rolling segment of the aluminum industry. The Business Unit offers a comprehensive product and service portfolio for metallurgical plants and equipment as well as integrated automation and environmental solutions covering the entire lifecycle of plants. For more information, visit

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