The image shows two metallic components with concave surfaces and central holes, typically known as shredder rotor knives. These are used in industrial shredders for cutting or grinding materials. The different sizes suggest they may be for different capacities or stages of shredding. The design focuses on durability and efficiency, crucial for continuous, heavy-duty operations in recycling or manufacturing processes.
Shredder Spare Parts

Tungsten Carbide Inlaid Shredder Rotor Knives

Engineered for wear resistance and long service life, our shredder rotor knives are built for demanding plastic recycling duty. Custom blades help keep your shredder cutting efficiently with less downtime.

Key Advantages

Tungsten carbide inlays, precision heat treatment, and custom fit for longer knife life in abrasive shredding.

  • Tungsten Carbide Inlay

    High-grade tool steels (D2, SKD11) with tungsten carbide inlays for extreme cutting durability.

  • Heat Treatment

    Triple-tempered vacuum heat treatment for optimal hardness (HRC 56-58) and toughness.

  • Precision Cutting Edges

    CNC machining for accurate fit, balance, and consistent shredding performance.

  • Custom Knife Solutions

    Fully customized rotor and stator knives for your shredder model and application.

  • Wear Resistance

    Built for abrasive recycling duty to reduce downtime and replacement frequency.

  • Plastic, Wood & Metal

    Suitable for plastic recycling machines and other industrial shredding applications.

Technical Specifications

Reference specifications for standard tungsten carbide inlaid shredder rotor knives. Custom sizes and steel grades available.

ParameterSpecification
Base MaterialsD2, SKD11, DC53, and other premium tool steels
Inlay MaterialTungsten Carbide
HardnessHRC 56-58
Heat TreatmentTriple Tempered Vacuum Heat Treatment
CustomizationAvailable for various shredder models and applications

Standard Configuration

Base MaterialsD2, SKD11, DC53, and other premium tool steels
Inlay MaterialTungsten Carbide
HardnessHRC 56-58
Heat TreatmentTriple Tempered Vacuum Heat Treatment
CustomizationAvailable for various shredder models and applications

FAQ

Common questions about shredder rotor knives and custom blade orders.

Service life depends on the material processed. Tungsten carbide inlaid knives typically last longer than standard blades. Inspect and rotate regularly to maximize life.

Yes. We can make rotor and stator knives for most major shredder brands. Provide a drawing, sample, or machine model for a precise quote.

Tungsten carbide creates a harder, more wear-resistant cutting edge than standard tool steel, for longer life, cleaner cuts, and lower operating cost on abrasive materials.

Our standard process targets approximately HRC 56-58 after triple-tempered vacuum heat treatment, balancing wear resistance and toughness.

Common options include D2, SKD11, DC53, and other premium tool steels, with tungsten carbide inlay for the cutting edge.

Share your shredder model, knife drawings or samples, material type, and quantity. We will confirm fit, steel grade, and lead time before production.

Warranty & Installation

  • Warranty Coverage

    Standard warranty coverage is available for supported machine components and manufacturing defects.

  • Installation & Support

    We provide installation guidance, commissioning support, operator training, and spare parts service according to project scope.

Get a Quote

Send your shredder model, knife drawing or sample, and quantity for pricing and lead time.

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Author: Plastic Recycling Machine - Rumtoo

Rumtoo Plastic Recycling Machinery is a premier manufacturer specializing in high-performance solutions for PET bottle and PP/PE film recycling. With over 20 years of expertise, we offer an integrated range of equipment, including advanced Washing Systems, Pelletizing Lines, Plastic Shredders, and Crushers. Our technology is specifically engineered to transform challenging waste—such as soiled LDPE films and PP non-woven bags—into high-purity plastic granules. Today, Rumtoo supports hundreds of recycling facilities worldwide, processing thousands of tonnes of plastic monthly and driving global circular economy goals.