Su Zhou Jin Li Cutting Tools Co.,Ltd

Rotary Slitter Knives | High-Precision Slitting Blades

Premium Rotary Blades in Tool Steel, HSS, and Tungsten Carbide for Industrial Metal Slitting.

Our Rotary Slitter Knives are engineered for high-speed, high-precision slitting lines. We specialize in producing blades that maintain a sharp, burr-free edge over long production runs. With thickness tolerances controlled within ±0.001mm,also can reach ± 0.0005mm, our knives ensure perfect horizontal clearance and exceptional strip quality for even the most demanding materials.

Description

High-Performance Material Options:

Tool Steel (D2, H13, Cr12MoV):

Best For: General-purpose slitting of mild steel and cold-rolled coils.

Features: Exceptional balance of toughness and wear resistance. Ideal for heavy-duty applications where impact resistance is crucial.

High-Speed Steel (HSS – M2, M35):

Best For: High-speed slitting operations and tougher alloys.

Features: Superior red-hardness and heat resistance. Maintains a sharp edge at elevated temperatures, reducing the frequency of regrinding.

Tungsten Carbide (Tungsten Steel):

Best For: High-volume production, thin foils (0.05mm), and high-silicon steel.

Features: Maximum wear resistance and edge retention. Provides a mirror-like cut surface and significantly longer tool life compared to traditional steel blades.

Technical Specifications & Precision:

  • Thickness Tolerance: Up to ±0.001mm(can also reach ± 0.0005mm) for precise gap control.
  • ·Parallelism & Flatness: Within 0.002mm to prevent blade wobbling and uneven wear.
  • ·Surface Finish: Lapped or mirror-polished finishes available to reduce friction and prevent material galling.
  • ·Hardness Range: Custom heat-treated from 58 HRC to 92 HRA, depending on the material and application.

Why Choose Our Rotary Knives?

Burr-Free Results: Optimized blade geometries and sharp edge profiles eliminate secondary deburring costs.

Custom Edge Prep: We offer specialized edge radius or bevel configurations tailored to your specific material type (e.g., aluminum vs. stainless steel).

Non-Standard Customization: We manufacture blades to your exact drawings—from specialized inner diameters (bore sizes) to unique keyway designs.

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