High Precision Thin Slitting Blade

The High Precision Thin Slitting Blade is the specialized industrial solution for the high-speed conversion of delicate materials. In industries like flexible packaging, battery manufacturing, and medical film production, the thickness and edge quality of the slitting blade directly determine the "edge-yield" and the amount of waste generated. For 30 years, our Ningbo factory has specialized in Ultra-Thin Blade Technology, producing edges as thin as 0.10mm that maintain perfect flatness under high-speed rotation or longitudinal tension. Unlike standard utility blades, slitting blades must operate with zero lateral deflection; any "flutter" in the blade will result in a jagged edge or a damaged roll of expensive material. We utilize high-purity Tungsten Carbide or Powder-Metal (PM) Steels, which offer the extreme rigidity required to maintain a straight cut even at web speeds of over 500 meters per minute.

Technically, our thin slitting blades are manufactured using a process of Creep-Feed Grinding and Lapping. The blade faces are lapped to a mirror-like Ra 0.05 finish, which is critical for reducing "material drag." If the blade surface is rough, it generates heat and friction, which can melt thin plastic films or cause "burring" on aluminum foil. Our blades feature a Variable Bevel Geometry, allowing us to tailor the edge to the specific material being slit—whether it's an abrasive lithium-ion battery separator or a delicate multi-layer medical laminate. To combat the abrasive wear typical in paper and non-woven industries, we apply specialized coatings like Diamond-Like Carbon (DLC) or Boron-Carbide, which can extend the blade's life by up to 10 times compared to untreated steel. Every blade is checked for flatness using optical flat testing, ensuring that across a 100mm diameter, the deviation is less than 0.002mm.

For industrial converter suppliers, battery manufacturers, and MRO distributors, our High Precision Thin Slitting Blades offer a high-performance alternative to expensive European or Japanese brands. We provide the technical expertise to analyze your specific material challenges and suggest the optimal metallurgy and edge profile. Our factory-direct model allows for the high-volume production of custom sizes, with the added benefit of our 30-year legacy in industrial edge science. We understand the high cost of downtime in a conversion facility; therefore, we maintain strict quality control to ensure that every replacement blade performs exactly like the first. Choosing our slitting series means investing in a cleaner cut and higher production yields. We provide the manufacturing precision, the advanced materials, and the technical support to help your facility—or your customers' facilities—operate at peak efficiency. We don't just sell blades; we sell cutting performance.