Double Shaft Shredder Blade for Plastic

• What materials are double shaft shredder blades made of?

  Feb 10, 2026

  Double shaft shredder blade material is a core component in solid waste treatment and resource recovery systems. It critically affects shredding efficiency, service life, operational reliability, and total cost of ownership. Four principal blade materials are widely adopted in industry today. Selection depends on waste composition, processing intensity, and operational needs.    SKD11 is a high-carbon, high-chromium cold-work tool steel. It is the most prevalent choice for general-purpose applications. With a hardness of HRC 58–60 and moderate toughness, it reliably handles medium- to low-hardness materials. These include plastics, rubber, paper, and light composites. SKD11 is cost-effective, and heat treatment and machining protocols are well established. Maintenance requirements are low. This material is suitable for small- to medium-scale recycling under standard duty cycles.     DC53 is an advanced cold-work die steel with superior mechanical properties compared to SKD11. After quenching and deep cryogenic treatment, it reaches a hardness of HRC 60–62. It also offers improved impact resistance and dimensional stability. DC53 is well-suited for high-intensity uses. These uses include rigid plastics, thin metals, and durable electronic housings. In continuous operation, DC53 blades last 30% longer than SKD11. This makes DC53 optimal for high-throughput, high-load production environments.    Material selection must be tailored to the feedstock and operational parameters. SKD11 is best for consistent, low-abrasion processing. Use DC53 for high-strength, high-cycle needs. Prefer H13 when thermal stress or metal content is high. Choose NM550 for very variable, impurity-rich waste streams. Matching materials to needs optimizes operations and lowers lifecycle costs.  

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• Introduction of double shaft shredder blade

  Feb 02, 2026

  The double shaft shredder blade is a key component designed specifically for double shaft shredders, used for efficient crushing and shredding of various waste materials. In industrial production, they determine the processing capacity and efficiency of shredders, especially suitable for the recycling and reuse of materials such as plastic, rubber, wood, and metal. The blades of a dual shaft shredder are usually disc-shaped with teeth, installed on two parallel shafts, and rotate in opposite directions to form a staggered interlocking shear structure. The blades are equipped with spacers to control the gap between the blades, thereby determining the particle size of the discharged material.  

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