26/08/2022 – Kocks “RSB 370++/4“ in 5.0 design successfully commissioned

Fujian Sangang Minguang rolled the first bar

The Chinese producer of special bar quality products Fujian Sangang Minguang Group Co., Ltd. (Sanming) has successfully modernized its bar mill line and rolled the first bar on their new Kocks 3-roll Reducing- and Sizing Block.


The commissioned RSB® 370++/4 is producing bar in coil and straight bars. © Kocks


The “RSB 370++/4” in 5.0 design will further improve the quality of Sanmings' SBQ products. The government-owned enterprise was founded in 1958. Today, it is one of the most important steel producers in the Fujian province on the southeastern coast of China. Around 11 million tons of steel roll off the mill every year. Within a major modernization project the decision was made to invest into an upgrade of the existing mill, including the integration of a Kocks “RSB”. The proven Kocks 3-roll technology enables Sanming to meet highest standards in terms of quality.

 The commissioned “RSB 370++/4” is located as finishing unit after 21 stands in H/V rolling mill arrangement and will produce bar in coil within a dimension of Ø 16 to 48 mm and straight bars within a dimension of Ø 20mm to 90mm in a 800,000t/a mill line.

 The large-scale modernization through a Chinese EPC contractor comprised additional rolling mill equipment. Despite the Kocks Reducing and Sizing Block, the project included the supply of H/V stands, shears, a new bar in coil line with finishing facilities and the upgrade of the inspection line. In addition to the mechanical equipment also electric and automation components have been modernized to ensure minimum downtimes, maximum transparency and highest efficiency.