A mata pisau crusher botol plastik (blade for plastic bottle crusher) is a critical component in plastic recycling machines, designed to efficiently cut, shred, or crush plastic bottles into smaller pieces for recycling. Here’s a detailed breakdown:
1. Types of Crusher Blades for Plastic Bottles
– Flat Blades: Basic straight blades for simple cutting.
– Hook Blades (Claw Type): Improved grip and tearing action for tougher plastics.
– Scissor Blades: Dual-blade systems for shearing plastic.
– Granulator Rotor Blades: Multi-blade rotors for fine shredding.
2. Material & Durability
– High-Carbon Steel (SKD-11, D2): Hard and wear-resistant but may rust.
– Tool Steel (HSS, M2): Retains sharpness longer.
– Stainless Steel (440C, SUS304): Corrosion-resistant but less hard.
– Tungsten Carbide-Tipped: Extremely durable for heavy-duty use.
3. Key Features
– Hardness: Typically HRC 55-62 to withstand abrasion.
– Sharpness Angle: 30°–45° for optimal cutting efficiency.
– Teeth Design: Some blades have serrated edges for better grip.
4. Applications
– Plastic bottle recycling lines.
– PET bottle shredders.
– HDPE/PP container crushers.
5. Maintenance Tips
– Regularly sharpen or replace worn blades.
– Clean blades to prevent plastic residue buildup.
– Lubricate moving parts to reduce friction.
6. Where to Buy
Suppliers include:
– Alibaba (search “plastic crusher blade”).
– Local machine tool shops (custom orders).
– Industrial blade manufacturers like WEIMA, Shini, or Genox.
Would you like recommendations based on your machine model or plastic type?




