John Cockerill has developed advanced production technologies for non-grain-oriented (NGO) electrical steel, addressing the increasing demand for high-grade steel in electric mobility applications. The focus is on manufacturing high-performance NGO grades, with varying thicknesses and magnetic properties suitable for electric motor components.
The production workflow is structured around key operational units: Annealing and Pickling Lines (APL), Cold Rolling Mills (CRM), and Annealing and Coating Lines (ACL). These units are optimized to enhance throughput and ensure product quality. The APL system, capable of processing 240,000 tons annually at speeds up to 35 meters per minute, incorporates advanced furnace technology and an enhanced pickling process. The ACL, supporting a yearly capacity of 225,000 tons, operates at line speeds of up to 180 meters per minute, featuring sophisticated furnace configurations and tightly controlled thermal cycles.
John Cockerill’s high-efficiency pickling technology, leveraging shallow and high-turbulence tank designs, increases line capacity by as much as 36% compared to traditional methods. This design improves product quality while reducing capital expenditure. Additionally, the implementation of induction heating during the initial rolling pass significantly reduces strip breakage, especially when processing high-silicon content steels—a critical factor in the manufacturing of high-efficiency electric motors.
John Cockerill’s innovations in processing lines are designed to meet stringent industry demands, focusing on maximizing productivity, enhancing material properties, and optimizing energy efficiency for NGO electrical steel production.