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Siemens to modernize two bar mills for Diaco in Colombia

Siemens VAI Metals Technologies has received an order from Diaco, the Colombian branch of the Brazilian Gerdau Company, to bring two bar mills at its Tuta and Tocancipá locations up to the state of the art. The modernized rolling mills are scheduled to come into operation at the end of 2012, and will be designed to produce rebars in different diameters.

Red Ring rolling stands from Siemens

Siemens will supply mechanical equipment and the fluid system for Diaco's bar mill in Tuta, Boyacá Province. The roughing mill will be equipped with a new billet feeder and a new pinch roll. The remainder of the rolling line will be completely renovated, and equipped with eleven Red-Ring rolling stands. Three new stand motors will also be supplied.

In the Tocancipá works in Cundinamarca Province, the rolling mill will be equipped with new main drive for the rougher and mechanical equipment such as gears, drive spindles, loop formers and shears. In the cooling section, Siemens will install a new cooling bed and shears for the hot and cold cutting, including the associated electrical equipment and basic automation. Mechatronics packages for shearing and optimized cutting round off the scope of supply.

Siemens is responsible for supervising the installation and commissioning of both projects.

Diaco is the main steel producer of Colombia. It owns the largest scrap recycling plant in the country to produce long products in Tocancipá. It also runs production sites in Muña, Cali and Tuta; and service units in Cota, Cartagena, Bucaramanga, Pereira, Medellín, Yumbo (Valle). Tocancipá. Diaco's long products meet the Colombian Technical Standards defined by ICONTEC, and its products for civil construction are in accordance with the new standards for earthquake-resistant construction. Since 2004, the company has been part of Gerdau, one of the world's largest steel producers.

Gerdau is the leading producer of long steel in the Americas and one of the largest suppliers of specialty long steel in the world. It has 45,000 employees and an industrial presence in 14 countries with operations in the Americas, Europe, and Asia, which together represent an installed capacity of over 25 million metric tons of steel per year. It is the largest recycler in Latin America and around the world it transforms millions of metric tons of scrap into steel every year. Gerdau is listed on the stock exchanges of São Paulo, New York, and Madrid and has around 140,000 shareholders.

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

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

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

Reference Number: IMT201202081e

Mr. Rainer Schulze
Metals Technologies
Siemens AG
Turmstr. 44
4031 Linz
Tel: +49 (9131) 7-44544

Further information:



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