Blade Material Selection Guide

Best Blades for Plastic Recycling

Compare SKD-11, D2, DC53, and 55SiCr blade materials for plastic shredders, crushers, and granulators. Choose the right steel for wear resistance, toughness, uptime, and service cost.

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“text”: “For clean, general plastic recycling, D2 or SKD-11 is usually the most practical choice because it gives strong wear resistance at a controlled cost. For abrasive or impact-heavy feedstock, DC53 is often a better fit because it handles chipping better.”
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“text”: “Many plastic shredder and crusher blades run around 56-62 HRC after heat treatment. The right target depends on the steel, blade size, cutting geometry, and feedstock; pushing hardness too high can increase cracking risk.”
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“name”: “How often should plastic recycling blades be sharpened?”,
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“text”: “Clean film or bottle flake applications may run for hundreds of hours before sharpening, while dirty film, woven bags, tires, or glass-filled plastics can need service much sooner. Track motor load, particle size, and output rate to set the interval.”
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