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The Rotary shear blades , also known as the strip divider blade or the rolling shearing machine blade, is the core cutting tool for the thin sheet metal shearing process. Through the rotation and shearing of the upper and lower blades, wide rolls of material can be precisely cut into narrow strips of specific widths. They are usually composed of three parts: the blade, the spacer sleeve, and the spacer ring. Their diameters range widely, from 100mm to 2000mm, to meet different processing requirements - larger diameter blades are mostly used for heavy-duty sheet metal processing, while smaller diameter blades are suitable for precise cutting. They are widely used in metal processing, automotive manufacturing, and electronic and electrical industries.