Siemens Set to Modernize Aluminium Cold Rolling Stand for Aluminium Norf

Siemens Metals Technologies has received an order from Aluminium Norf GmbH (Alunorf), Neuss, to modernize cold rolling stand No. 4.

The scope of supply consists of the basis automation (including the technological controls), the process automation system, the power units of the drives and the digital drive controllers. Siemens is also responsible for all the installation work and for commissioning. Modification will start as early as 2008 and will be completed in December 2009.

Established in 1965, Aluminium Norf GmbH is a joint venture of Novelis Deutschland GmbH and Hydro Aluminium Deutschland GmbH. In Norf near Neuss, it operates the largest aluminum melting plant cum rolling mill in the world. The company employs more than 2,100 people. Sales amount to around 1.5 million metric tons per year. In the framework of continuous investment in its production facilities, Alunorf is now modernizing its four-high cold rolling stand No. 4. This part of the plant was commissioned in 1987 and was also fitted with electrical and automation equipment from Siemens.

After modernization of the technological controls, the operator control system and the drive controllers, the plant will be in line with the latest state of the art, the aim being to improve product quality and increase productivity. The rolling stand will be equipped on the basis of the "Siroll ALU CMA" concept developed by Siemens for aluminum cold rolling mills.

On top of all this, Alunorf intends to refurbish the mechanical equipment. This includes the use of a new cooling beam for selective roll cooling and an inductive edge heating. Both serve to improve strip flatness control. The main reason why the contract was awarded to Siemens was the successful collaboration of Alunorf and Siemens in numerous preceding projects.

Posted April 27th,2008

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