A Coil Slitting Line is an industrial machine used to cut wide metal coils into multiple narrower strips according to specified widths. The line typically consists of a decoiler, leveling unit, slitting machine, tension system, and recoiler. It is widely used in steel service centers, automotive manufacturing, construction materials, home appliances, and metal processing industries. By improving dimensional accuracy and production efficiency, a slitting line helps manufacturers reduce material waste and prepare coils for downstream processing such as roll forming, stamping, and tube production.