Steel Plantech Receives Cold Leveller Order from Finnish Ruukki

Steel Plantech and Mitsubishi Corporation announced on Tuesday they received an order from Rautaruukki, an integrated steel maker in Finland, for a cold leveller to be installed at heavy plate shop at Ruukki’s Raahe works. The cold leveller will start operation in January 2009 with world largest levelling force at 6,900 tonnes. The order value seems approximately 2 billion yen. In Europe, Steel Plantech previously received an order of similar type cold leveller from ILVA of Italy in October 2006.The cold leveller is 4-high and reverse type with leveling force at 6,900 tonnes, double than existent equipment in Raahe works. The leveller can process steel plates with 8-50 millimeters of thickness and 3,350 mm of width at levelling speed of 10-37.5 meters per minute.Ruukki required world major leveller builders to present solutions for less residual stress and better flatness to supply high tensile strength heavy plates. Steel Plantech presented world largest levelling force and driving power specially equipped with its patented technology “Dynamic Crowning Control.”The cold leveler will be able to maintain optimum roll gaps of all work rolls during the whole leveling time in order to obtain the ideal “yield ratio” to each plate. Consequently the leveller will minimize residual stress and attain perfect flatness throughout the plate from the head to tail, and across the full width.Steel Plantech is a steel plant engineering company shared by JFE Engineering Corporation, Sumitomo Heavy Industries, Hitachi Zosen Corporation and Kawasaki Heavy Industries. Steel Plantech received an order of gas dedusting system from COSIPA of Brazil in March 2007 and an order of a converter steel making plant from Hyundai Steel of South Korea in mid May 2007.