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Industrial Waste Wood Shredder | SY Series High-Torque Shear Shredder for Biomass

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Wood shredder (shear-type shredder) reduces material size through cutting, tearing and pressing.
 It widely processes wood, pallets, branches, yard waste, plastic drums, paint buckets, appliance shells (plastic/metal), and other bulky waste.

1. Product Overview & Industry Value

Wood recycling plays a vital role in the circular economy. Waste wood materials—such as pallets, construction offcuts, branches, and wooden packaging—can be converted into valuable resources including biomass fuel, panel board feedstock, and organic mulch after proper shredding. These end products are widely used in biomass thermal power plants and pellet fuel processing centers.

The SY Series Shear-Type Shredder is engineered for high-capacity, continuous-duty operations, making it the ideal core equipment for large-scale waste wood processing facilities.

2. Technical Features & Structural Advantages

2.1 Working Principle

The SY Series operates on the shear-cutting principle. Through the combined actions of cutting, tearing, and pressing generated by two counter-rotating knife shafts, materials are efficiently reduced to target sizes. The high-torque, low-speed design ensures superior performance when processing hard, tough, or contaminated materials, while maintaining stable operation with low noise levels.

2.2 Core Structure & Design Highlights

  • Modular Design: Standardized, interchangeable components simplify maintenance and reduce spare parts inventory costs.

  • High-Strength Blade System:

    • Main Blades: Forged from special alloy steel using a proprietary process, offering exceptional wear resistance and impact strength.

    • Auxiliary Blades: Manufactured through die-forging for precise cutting edges and extended service life.

  • Drive & Screening System:

    • The drive unit employs a central gear transmission allowing flexible speed ratio adjustments to accommodate different material characteristics.

    • The screen/mesh is designed for quick and easy disassembly—no complex tools required—facilitating rapid cleaning or size-changeover.

  • Compact Design: Sturdy construction with an elegant, space-saving footprint.

2.3 Flexible Configurations for Diverse Materials

  • Interchangeable Rotor Options: Rotor configurations can be tailored based on material properties—solid wood, hollow plastic drums, or thin metal shells—to maximize shredding efficiency.

  • Hydraulic Pusher Device (Optional): When processing hollow or bulky items (e.g., plastic drums, paint buckets), an optional hydraulic pusher ensures forced feeding, significantly boosting throughput.

  • Blade Thickness Grading: Blade thickness directly determines output particle size. We offer six standard thicknesses: 15mm, 20mm, 40mm, 50mm, 75mm, and 100mm. Thinner blades produce finer output—choose according to your downstream process requirements.

2.4 Multi-Purpose Versatility

Beyond waste wood, the SY Series effectively processes:

  • Plastics (pallets, drums, pipes, films)

  • Thin metal shells (appliance housings, beverage cans)

  • Yard waste (branches, stumps, roots)

  • General industrial solid waste (waste paper bales, textiles)

3. Technical Specifications (Standard Models)

The table below outlines key specifications for standard SY models. Customized solutions are also available upon request.

Model Main Shafts (pcs) Blade Size (mm) Blades (pcs) Reducer (sets) Motor Power (kW) Shaft Speed (r/min) Dimensions (mm)
SY600 2 Φ250×10 / Φ250×20 48 / 24 400×2 15×2 18-25 1450×870×2200
SY800 2 Φ250×20 / Φ250×30 32 / 18 400×2 / 650×2 30×2 18-25 2150×870×2200 / 3400×1250×2200
SY1000 2 Φ350×30 / Φ350×40 28 / 20 650×2 / 750×2 37×2 18-25 3400×1250×2200 / 4150×1250×2200
SY1200 2 Φ350×30 / Φ350×40 38 / 28 650×2 / 750×2 55×2 18-25 4150×1250×2200
SY1500 2 Φ400×40 / Φ400×50 36 / 28 750×2 / 850×2 75×2 18-25 4150×1250×2200
SY2000 2 Φ530×50 / Φ600×60 38 / 32 850×2 90×2 18-25 5250×1780×2200
SY2500 2 Φ600×60 / Φ600×75 60 / 50 1000×2 110×2 18-25 7500×3200×3800
SY3000 2 Φ600×75 / Φ600×100 56 / 44 1200×2 132×2 18-25 8600×3500×4000

Note: Each model offers two blade configuration options corresponding to different output fineness levels. For specific selection guidance, refer to the "Blade Selection Guide" or consult our engineering team.

4. Auxiliary Equipment & Complete Production Line

To support end-to-end processing—from primary size reduction to fine refinement—we offer the following complementary equipment:

Equipment Function Typical Applications
Wood Chipper Chips logs and large-diameter branches into uniform wood chips Pre-processing for biomass pellet plants
Wood Grinder Fine-grinds coarse materials to powder-level fineness Combustion injection systems, panel board manufacturing
Hydraulic Pusher Forces loose or hollow materials into the shredding chamber Processing plastic drums, paint buckets, foam packaging

Recommended Process Flow:

Raw Waste Wood → SY Shear Shredder (Primary Reduction) → Chipper / Grinder (Optional) → Finished Product (Sawdust / Biomass Fuel)

5. Customized Selection & Engineering Support

Given the wide variety of waste wood types (softwood/hardwood, nail content, moisture levels), output requirements, and final particle size specifications, we provide one-on-one professional selection services.

To receive a tailored equipment recommendation and optimal line design, please provide the following information:

  1. Material Type: What materials will be processed? (e.g., construction formwork, branches, plastic drums)

  2. Feed Size: Maximum single-side length or diameter.

  3. Target Capacity: Required throughput in tons per hour.

  4. Output Requirement: Desired particle size after shredding (in mm).

Product Details

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