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Rautaruukki, Steel Works, 220/60t CHARGING , Raahe Steel Works, Finland 220/60t CHARGING CRANE

The Challenge Rautaruukki is a metal component and system provider for steel construction and businesses. With almost 12.000 employees in 27 countries and a turnover of 2.4 billion euros, Rautaruukki is a significant operator in the Nordic countries, Eastern Europe, and Russia. The Raahe steel works produces 2.8 mmt of hot rolled steel and special steel products per year. The reason for the new investment was to replace the existing crane which was purchased in 1975. The cranes handling the molten metal play an important role in steel production because all production goes through them.

A view from the operator’s room.

To meet the high availability requirement the crane “I am satisfied. I have spoken to our was equipped with several redundant features and Service guys and heard only good technical solutions such as redundant variable things from them.” Crane performing charging task. frequency drive and network braking units. The successful end result is achieved with industry specific know-how which Therefore, the availability requirement for the At the end of the design process, the drawings is underlined by Mr. Prokkola: equipment is high. Safety, maintenance, and were accepted by Rautaruukki and the crane operator friendly usage of the equipment are manufacturing was started. During the manufac- “I would say that has peo- important criteria for the equipment as well. turing phase, Rautaruukki conducted factory visits ple who have done such work before Naturally, the crane should be able to fulfil the in Konecranes’ factories to check the progress of and they know the steel mill environ- requirements from the increased production rates. the project. ment well. They knew where the crane was going to be installed and under The Solution The Results which circumstances”. The crane design was done in close cooperation With the new Konecranes crane, Rautaruukki between the parties. During the design process is able to meet demands from the production. And with seamless cooperation with the maintenance and user-friendly operator interface The crane capacity requirements were met with customer as Mr. Prokkola continues: were emphasized. To meet these requirements state-of-the-art motion control technology allow- “Collaboration with the supplier has the crane is equipped with Konecranes’ crane ing higher speeds and safe operation. Also the been, and continues to be, effortless”. monitoring system to guarantee efficient mainte- reliability and maintainability of the crane has nance operations and smart control features such been noted in Rautaruukki, as Mr. Esa Prokkola, as sway control and semi-automatic positioning to Project Manager at Rautaruukki states: Konecranes Finland office guarantee user-friendliness. Heikki Lappalainen, [email protected] www.konecranes.com