Single Shaft Shredder Knives

Why ALAS Single Shaft Shredder Knives Lead the Recycling Industry

1. Built for Tough Recycling Work

Key Engineering Features

• Our blades are the core of single-shaft shredders, responsible for cutting and tearing all types of waste.

• We use in-house precision CNC machining to make every blade (concave or flat) cut cleanly.

• Clean cutting reduces machine vibration and saves energy during heavy use.

• Unlike cheap blades, ALAS blades work well with your shredder—reducing stress on rotors and motors, and boosting efficiency.

2. Lower Your TCO with Smart Material Choices

How We Reduce Your Costs

• Our blades last longer between regrinds and keep their sharp edge—cutting down on TCO.

• We’re not just a supplier—we’re your partner. We learn about your materials and goals to help you work faster.

• We help you choose the right material:

• D2 alloy: Great for abrasive materials (hardness HRC 58-60)

• DC53 alloy: Stronger and more durable (hardness HRC 62-63) for mixed or impure materials

3. Why Choose ALAS Shredder Knives? Our Top Advantages

• 4 Rotatable Cutting Edges

• Small (35×35×25mm): For soft materials like plastic film

• Standard (40×40×25mm/60×60mm): For most common uses

• Large (80×80×30mm): For heavy materials like tires and wood

• Our square and concave blades have 4 edges you can rotate—making each blade last 4x longer.

• Fewer replacements = less downtime and lower costs.

• Available sizes (perfect for your equipment):
• Vacuum Heat Treatment

• Every blade gets advanced vacuum heat treatment, with hardness controlled between 58-63 HRC.

• Balances sharpness and durability—no chipping or cracking, even with mixed/impure materials.

• Treatment tailored to each alloy: DC53 for strength, D2 for wear resistance.

• Perfect Fit & Balance

• CNC-machined to exact sizes—no misalignment, less vibration.

• Central mounting holes (convex or flat) keep blades stable at high speeds.

• Some designs have a recessed cutting edge for more precise cutting.

• Extends your shredder’s life and keeps output consistent.

• High-Quality Materials & Precise Manufacturing

• Blanking & forging: Makes the metal stronger

• Heat treatment: Balances sharpness and durability

• Precision machining: CNC, wire cutting, grinding for accuracy

• Quality control: Hardness tests, size checks, and defect inspections

• Only high-grade D2 and DC53 tool steels—matched to your needs.

• Strict 4-step manufacturing process:

4. Work Faster, Spend Less

• More consistent output sizes

• Lower energy costs

• Less money spent per ton of processed material

• Longer blade life—less time replacing blades, more time working