The uncoiling and cross-cutting production line has a high cutting speed and efficiency. For a fixed length of 2 meters, it can cut 25-35 times per minute, and for a length of ≤500mm, it can reach as many as 80 cuts per minute. In addition, the uncoiling and cutting material diversity is wide, including low-yield-strength tinplate and galvanized sheet, as well as high-strength stainless steel, weathering steel, and high-strength automotive plates. 

The work intensity of uncoiling and cross-cutting is high; some factories operate 2-3 shifts, cutting 10,000 to 20,000 times per day! This places extremely high demands on the durability and applicability of the cutting blades. The selection of blade materials and heat treatment process is paramount, but the precision manufacturing process of the blades is many times more sophisticated and complex than that of ordinary shearing blades.