Industrial Top and Bottom Slitter Knives for Paper Converting Machinery

Ma'anshan Guangchuan Machinery Tool & Die Technology Co., Ltd. is a leading supplier of large diameter rotary shear with spacer assemblies, specifically engineered for the corrugated cardboard and packaging industry. These precision-matched tools consist of a high-strength steel cutting blade paired with a durable polyurethane (PU) or rubber buffer/spacer. This specialized design ensures clean, non-crushing cuts and effective scoring of multi-ply materials. Our corrugated cardboard circular slitter blades are manufactured to strict flatness and parallelism standards, guaranteeing long-life performance and superior edge quality in high-speed, demanding production environments.

Ma'anshan Guangchuan Machinery Tool & Die Technology Co., Ltd. is a volume producer of high-quality large diameter circular slitter blades and flat circular machine knives. As seen in the $250mm$ size, these knives are the backbone of many continuous production lines, including paper, printing, packaging, and non-woven industries. Manufactured from premium High-Speed Steel (HSS) or D2 Tool Steel, our blades are subjected to strict vacuum heat treatment and precision ground paper cutting tools processes. We ensure superior edge sharpness, exceptional longevity, and precise concentricity, making them ideal long-life slitter knife replacement options for high-volume operations.

Ma'anshan Guangchuan Machinery Tool & Die Technology Co., Ltd. specializes in manufacturing high-quality annular circular slitting knives and paper core cutter machine blades. These industrial ring slitting cutter tools are characterized by their large inner diameter, designed for specialized rotary cutting applications, particularly the high-speed and clean cutting of paper cores (paper tubes), thin films, and foils. Crafted from premium high-speed steel (HSS) or D2 tool steel and subjected to meticulous precision grinding, our custom large hole rotary blades ensure superior sharpness, extended operating life, and minimal dust or burr during the cutting process.

Ma'anshan Guangchuan Machinery Tool & Die Technology Co., Ltd. is a leading manufacturer of precision circular slitting knives and metal coil rotary shear blades. These blades are engineered to meet the extremely tight tolerance demands of slitting metal coils, aluminum foil, heavy paper, and synthetic films. Our commitment to using superior tool steel (D2, HSS) and specialized cryogenic treatment ensures exceptional wear resistance. The critical ultra-high flatness slitting tools and parallelism tolerances guarantee minimal burr and perfect edge quality, maximizing the efficiency and output of your slitting lines.

Ma'anshan Guangchuan Machinery Tool & Die Technology Co., Ltd. specializes in manufacturing high-precision custom hexagonal rotary blades and scalloped edge slitting knives. These unique multi-edge blades are engineered to excel in high-speed applications such as film, foil, paper, and non-woven fabric conversion. The scalloped or polygonal geometry provides a reduced contact area, minimizing friction, heat buildup, and material adhesion. Utilizing high-grade tool steel and ultra-precise grinding, our high-speed film cutting blades ensure clean, accurate cuts and perforations, significantly enhancing machine efficiency and reducing product waste.

Ma'anshan Guangchuan Machinery Tool & Die Technology Co., Ltd. presents our premium line of TiN coated octagonal blades and polygonal rotary knives. These high-performance blades are distinguished by their golden Titanium Nitride (TiN) coating, which significantly enhances surface hardness and reduces friction. Designed for versatility, our rotary cutter replacement blades are ideal for cutting diverse materials ranging from textiles, fabrics, and leather to food products like kebab meat. The unique polygonal geometry ensures a powerful, intermittent cutting action that prevents material jamming and heat buildup, making them superior to standard circular blades in demanding applications.