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SMS Siemag to Supply Pickling Line/Tandem Cold Mill to JSW Steel

07/27/2011 - JSW Steel Ltd. has placed an order with SMS Siemag for the supply of a pickling line/tandem cold mill at its location in Toranagallu Vidyanagar (Bellary), India. The mill will have an annual capacity of 2.3 million tonnes of cold strip in widths up to 1890 mm.

JSW Steel Ltd. has placed an order with SMS Siemag, Germany, for the supply of a pickling line/tandem cold mill at its location in Toranagallu Vidyanagar (Bellary), India. The mill will have an annual capacity of 2.3 million tonnes of cold strip in widths up to 1890 mm. JSW will use it to produce strips in high-quality steel grades from 2013 and supply these to the automotive industry.
 
The SMS Siemag supply scope includes the entry section, equipped with two payoff reel groups and an SMS Siemag laser welder that is able to join strips of difficult weldability. A tension leveler prepares the strip for the pickling process in the three downstream pickling tanks. The turbulence-pickling technology is said to allow optimum descaling with low consumption of energy and acid as well as reduced maintenance and operating costs. An integrated trimming shear sets the desired strip width and straightens the strip edges. Altogether, three horizontal strip accumulators are integrated into the line to ensure continuous strip travel.
 
The five mill stands of the tandem mill are designed as six-high stands and are equipped with the new combined CVC® plus/ESS technology (Continuously Variable Crown/Enhanced Shifting System). The roll-gap adjustment range made available by this technology allows optimum results regarding strip gauge and flatness, according to SMS Siemag.
 
In the exit section, the strips are coiled by a carrousel reel at a minimum final gauge of 0.3 mm. The carrousel reel and the downstream inline strip inspection station are combined, resulting in a compact design for the exit section of the tandem cold mill.
 
The supply scope for JSW Steel also includes the auxiliary facilities, comprising coil conveyor system, coil banding machine, exhaust systems, utility system, and a separate inspection line for monitoring the strip quality.
 
Following a CCM® (Compact Cold Mill) and a skin-pass mill, this is the third cold rolling mill supplied by SMS Siemag to JSW Steel.
 
SMS Siemag AG is a company of the SMS group, which is, under the roof of SMS Holding GmbH, a group of companies internationally active in plant construction and mechanical engineering for the steel and nonferrous metals industry. It consists of two business areas, SMS Siemag and SMS Meer. In 2010, about 9200 employees worldwide generated a turnover of EUR 3 billion.