Ordered from SMS a year ago, the comprehensive technology package’s centerpiece includes an advanced automation solution which optimizes the rolling process by automatically detecting and correcting later strip deviations using smart cameras. The industrial cameras allow for real-time adjustments to ensure precise strip alignment to mitigate issues like double-rolled strip edges, ripped tail ends and cobbles. 

 “This system has proven to be highly effective and has performed beyond our initial expectations,” said Thomas Rothe, head of the hot strip rolling mill at Salzgitter. 

The control system’s enhancements in product quality include uniform winding and thickness, reduced internal stresses, enhanced surface finish and consistent material properties. These features all contribute to the final product’s high processability, the company said. 

Integration of the system was seamless, according to the companies; image processing runs on a real-time system with values transmitted periodically to the level 1 automation system. Using the hydraulic gap control unit, the seven mill stands can be managed and monitored with a user-friendly human-machine interface system.