Durable Solid Waste Shredder Blades
Engineering Solutions for Diverse Waste Streams
Municipal and industrial waste often has unpredictable materials. Our shredder blades deliver consistent cutting force for both soft plastics and hard metal-reinforced waste.
High-Alloy Tool Steel Options
We use D2, DC53, Cr12MoV,9crsi， and H13 for strong, long-lasting performance.
Key Steel Advantages
Precision Clearance & Spacers
Our blades work with precision-machined spacers to maintain a perfect cutting gap.
Benefits of Precision Clearance
Advanced Heat Treatment
Our vacuum heat treatment gives blades a uniform hardness of 52–60 HRC.
Heat Treatment Benefits
Technical Specifications
Core Parameters
Materials: D2, DC53, Cr12MoV (SKD-11), H13
Hardness: 52–60 HRC (vacuum hardened)
Applications: MSW, wood, e-waste, plastics, bulky waste
Blade design: Custom 1‑hook to 12‑hook
Surface: Precision ground for low friction
How Double-Shaft Shredder Blades Work
Shaft & Blade Design
Two shafts rotate in opposite directions
Blades are arranged in a staggered, spiral pattern
Grabs material immediately to avoid jams
Uses shearing and tearing forces to reduce waste size
Runs at 5.5–10 rpm: low speed, high torque
More efficient than single-shaft designs
Blade Structure for Strength & Easy Maintenance
Customizable Design
Claw options: 2‑claw, 3‑claw, 6‑claw, 8‑claw, 12‑claw
Thickness options: 10mm, 20mm, 40mm, 50mm, 75mm
Modular Quick-Change System
Strong Torque Transfer
Blade Materials for Different Waste Types
Choose material based on your waste stream to avoid waste or fast wear.
High Manganese Steel
Very tough and impact-resistant
Hardens further during use
Best for: MSW, construction waste, dirty / sandy waste
9CrSi Alloy Steel
High hardness, good wear resistance
Lower cost
Best for: rubber, paper, fiber, soft waste
Cr12MoV / SKD-11 Cold Work Steel
Excellent wear and shock resistance
Holds a sharp edge
Hardness: HRC 58–62
Best for: wood, hard plastic, metal scrap, e-waste, tires
H13 Hot Work Steel
Balanced wear resistance and toughness
Great for heavy-duty, continuous use
Best for: industrial solid waste
Materials We Can Shred
Key Material Categories
Metals: cans, barrels, car parts, scrap steel, aluminum
Plastics & E-waste: films, bags, pipes, casings, circuit boards
Construction waste: debris, bulky waste, landfill materials
Organic waste: furniture, branches, garden waste, kitchen waste
Special: whole tires, mixed industrial waste
Key Performance Benefits
Core Advantages
Longer life: Blades can be reground up to 4 times; 4 usable edges per blade
Stable running: PLC control, overload reverse, low noise (<85dB), low dust
Energy saving: Uses 15–30% less energy
24/7 continuous operation
Maintenance Tips
Proper Care for Longevity
Regrind blades when dull to restore sharpness
Regularly check and adjust blade gaps
Replace cracked or badly worn blades immediately
Check and tighten bolts before and after use
How to Choose the Right Blades
Step-by-Step Guide
Match material to wasteHard materials: SKD-11, Cr12MoV
Dirty / high-impact waste: high manganese steel
Soft waste: 9CrSi
Choose structure Fine output: 8–12 claws
Coarse crushing: 2–3 claws
Heavy materials: thicker blades
Prioritize modular, quick-change designs
Provide full details for custom blades: Machine model
Shaft size
Waste type
Desired output size
ALAS Shredder Blades for MSW & RDF
Built for Unpredictable Waste
MSW and industrial waste often contain metal, stone, and hard debris
ALAS blades use shock-resistant H13 or modified D2 steel
Vacuum heat treatment keeps blades tough but sharp
Lower Your Total Cost of Ownership
We are your engineering partner, not just a supplier
We analyze your waste stream and recommend the best blade material and design
Extend replacement intervals and reduce downtime