SMS Group has successfully completed a multi-phase modernisation of continuous galvanising line #1 (CVGL#1) for Hyundai Steel at its Dangjin plant in Korea, with the final acceptance certificate now awarded. The upgrade enhances operational efficiency, improves product quality and ensures long-term reliability, supporting Hyundai Steel’s ability to meet increasing performance demands, particularly in the automotive sector.

Delivered in two co-ordinated phases to maintain production continuity, the project addressed both downstream processing and core mill performance. The first phase focused on upgrading equipment following the skin pass mill, including the installation of a strip washer, strip dryer and optimised bridle roll sets, alongside new motors and drives. An advanced X-Pact line drive control system was implemented to deliver precise tension and elongation control, resulting in improved strip quality and smoother operation at higher processing speeds.

The second phase centred on the comprehensive modernisation of the skin pass mill. This included a full upgrade of the technological control system and integration of the latest X-Pact embedded controller. New hydraulic blocks and advanced servo valves for hydraulic gap control and work roll bending were also introduced, ensuring accurate strip thickness and flatness control, enhanced tension stability and reduced maintenance requirements. Rapid commissioning was achieved with minimal software adaptation, reducing production risk and enabling a swift return to normal operation.

Building on a partnership that began in 2005, when SMS Group converted the original continuous annealing line into a combined annealing and galvanising facility, the latest upgrade reinforces long-term collaboration. With CVGL#1 now operating in a stable and efficient manner, Hyundai Steel is well positioned to meet growing market demands while maintaining high standards of quality and process consistency.

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