automatic CNC longitudinal slitting line integrates uncoiling, guiding and slitting, tension control, and recoiling into a single system. It is designed for the longitudinal slitting of various coiled materials, including stainless steel, galvanized steel, cold-rolled and hot-rolled steel, aluminum, and copper strips. Widely used in industries such as pipe manufacturing, sheet metal processing, decorative curtain wall production, hardware stamping, photovoltaic mounting systems, and structural steel raw material processing, the line can slit a single wide coil into multiple narrow strips in one pass. Its processing efficiency far exceeds that of standalone cutting equipment, making it a core upstream component in coil processing operations.

The main processing unit comprises four primary mechanisms—an uncoiler, a precision rotary slitter head, a plate-type tensioning station, and a recoiler—complemented by auxiliary systems for material transport, buffering, guiding, scrap edge winding, strip end shearing, and material discharge.