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Shredder Blades

Shredder blades drive throughput, cut consistency, and downtime. We make custom/OEM knives for single-, dual-, four-shaft and granulator shredders, plus spacers for stable stacks.

Durable industrial shredder blades

Shredder Blades We Manufacture

Built for plastic recycling, waste processing, and shredding systems.

Knife Formats Matched to Your Shredder Type

  • Dual-Shaft & Multi-Shaft Cutter Discs (Slow-Speed, High-Torque)
    Disc cutters for tires, mixed waste, e-waste, and heavy-duty scrap—built for stable engagement and impact resistance.
  • Single-Shaft Rotor Knives + Bed/Counter Knives
    Matched moving and fixed knives designed around rotor pockets and clearance to keep output stable and reduce jamming.
  • Granulator Knives for Secondary Size Reduction
    Knives optimized for consistent regrind where edge stability and repeatable grinding geometry matter.
  • Distance Rings / Spacers for Rotor Stack Stability
    Spacers control knife spacing and help reduce vibration, uneven wear, and assembly variation across replacement cycles.
Shredder knife

Shredding Applications by Feedstock


  • Plastic recycling
    Applications
    Plastic recycling

    PET, HDPE, PP, mixed plastic waste

  • Metal scrap
    Applications
    Metal scrap

    Mixed scrap feed and scrap processing lines

  • Wood & biomass
    Applications
    Wood & biomass

    hardwood, residuals, off-cuts

  • Municipal and industrial waste
    Applications
    Municipal and industrial waste

    volume reduction and heavy-duty shredding

How to Specify the Right Shredder Knife Set

Shredder Knife Materials for Wear and Impact

We select materials and manufacturing routes based on real shredding conditions:

  • Wear-resistant tool steels and alloys (e.g., 9CrSi, H13, 55SiCr) for plastics, wood, and general scrap
  • Carbide-tipped / coated options for highly abrasive or fiber-filled feedstock
  • Geometry optimization for blade angle, mounting, spacing, and clearance to match your machine
  • Controlled heat treatment + inspection for predictable wear life and safe performance
High-quality custom shredder blades

Sharpening & Replacement Support for Shredder Knives

To extend knife life and reduce unplanned downtime, we provide:

  • Regrinding / resharpening plans aligned with your maintenance cycle
  • Service kits (spacers, fasteners) and replacement logistics for fast change-outs
  • Wear-rate guidance based on feedstock abrasiveness and contamination
  • Documentation and basic installation guidance for maintenance teams
Heavy-duty shredding blades

Why YISHI for Shredder Knives

  • Proven B2B experience for high-volume and custom-spec production
  • End-to-end support: selection → manufacturing → installation guidance → service
  • Stable global delivery and consistent quality controls
  • Responsive engineering support for shredder operations and performance issues
Wear-resistant shredder cutters

Frequently Asked Questions

Do you have any questions about our products and how to use them? We have compiled the most frequently asked questions and answered them. If your question is not listed here, please contact us.

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  • Can I use a standard knife set for aggressive mixed-metal scrap?

    Not recommended. Mixed-metal scrap is highly abrasive and may require higher wear resistance or carbide options to avoid rapid edge deterioration.

  • What is the typical replacement interval?

    It depends on feedstock abrasiveness, contamination, shaft speed, and clearance setup. Share your runtime and wear photos—we’ll recommend a practical service interval.

  • Do you supply knives for all machine brands?

    We support OEM replacement by drawing, sample, or key dimensions (OD/ID/thickness, mounting pattern). Brand is helpful but not required.

  • Can you support sharpening and maintenance?

    Yes. We offer re-grinding programs, service kits, and guidance to reduce unplanned downtime.