Wear-resistant Metal Slitter Knives

Slitting Machine Knives

What Are Slitting Machine Knives?

• They are key precision cutting tools for metal sheet slitting lines.

• Use: Cut wide metal coils (steel, stainless steel, aluminum, copper) into narrow strips of your desired width.

• Used in industries like metallurgy, metal processing, auto parts, home appliances, and hardware.

• Their precision affects the cut edge’s flatness, burr-free quality, and production speed.

Core Features

• Hard & Wear-Resistant, Long-Lasting

• Made of high-quality materials (Cr12MoV, D2, high-speed steel, cemented carbide).

• Treated with professional heat (vacuum quenching), hardness HRC58-62.

• Optional surface treatment (nitriding, TiN coating) for better wear resistance; fewer blade changes, lower cost.

• High Precision, Burr-Free Edges

• Cutting edge tolerance is controlled at micron level.

• After slitting, edges are flat (no curling, no burrs); no need for secondary processing.

• Customizable, Fits All Slitting Machines

• Customize size (outer diameter, inner diameter, thickness) and cutting edge angle.

• Supports circular, irregular shapes, and upper/lower blade sets for different needs.

• Stable at High Speed, Consistent Sizing

• Minimal deformation after heat treatment; no wobbling at high speed.

• Ensures consistent narrow strip width; reduces waste, improves material use.

Main Types

• Circular Slitting Knives: Most common, disc-shaped. Adjust multiple blades for different widths; fits ordinary metal coils.

• Irregular-Shaped Knives: Custom (stepped, beveled). For thick/hard metal coils and high-precision slitting.

• Upper/Lower Matching Knives: Used together for even cutting force; standard for all slitting machines.

Applicable Industries

• Metallurgy: Slit steel/aluminum/stainless steel coils before shipment.

• Metal Processing: Secondary slitting for custom narrow coils.

• Auto/Home Appliances: Precision slitting for parts, casings, and hardware.

• Special Materials: Slit galvanized/color-coated/copper/titanium strips; protect surface quality.

Recommended Materials by Use

• Carbon steel strips (cold/hot rolled): Cr12MoV/SKD-11, HRC58-60; tough and wear-resistant.

• Stainless steel (304/316/430): Cr12MoV1/D2, HRC60-62; no chipping, burr-free.

• Soft metals (aluminum, copper): High-speed steel (HSS); smooth cut, no material sticking.

• Galvanized/color-coated strips: Cr12MoV (mirror-polished/nitrided), HRC58-60; protect coating.

Daily Use & Maintenance

• Installation: Check for chipped edges; ensure blade and spindle alignment; tighten securely.

• Adjustment: Set blade spacing based on material thickness (too big = burrs; too small = more wear).

• Operation/Storage: Clean metal chips timely; rust-proof idle blades; store in dry, flat place; avoid collisions.

Custom Solutions