Plastic Shredder Blade

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Plastic Shredder Blade

Plastic crusher blades have become a key link in the plastic resource utilization industry chain by adapting to different equipment (such as single axis and double axis crushers) and scene requirements. Mainly used in the plastic recycling industry, agricultural environmental protection, industrial waste resource utilization, and multi industry collaborative applications.

Description

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The Specific Application Of Plastic Crusher Blades:

1.Disposal of waste plastic products: crushing large plastic products such as automotive parts and home appliance casings into small particles for subsequent cleaning, screening, and reprocessing, achieving resource recycling.

2.Treatment of large volume plastic containers: For large volume materials such as plastic drums and industrial packaging containers, shredding is used to reduce volume, improve recycling efficiency, and reduce environmental pollution.

3.Diversified plastic processing: Suitable for various plastic materials such as polyethylene, polypropylene, polyvinyl chloride, etc., it can process different forms of waste such as plastic pipes, films, cans, etc.

4.Disposal of waste plastic film: Crushing waste plastic film in farmland can prevent soil pollution, and the broken fragments are easy to recycle and reuse, promoting sustainable agricultural development.

5.Industrial plastic waste treatment: For waste plastic pallets, rubber heads, plastic bottles, etc. generated in the chemical and manufacturing industries, they are broken and converted into raw materials that can be reprocessed to reduce production costs.

6.Building materials and packaging industry: Crushed plastic particles are used to produce plastic sheets, packaging materials, etc., promoting the lightweighting of building materials and the recycling of packaging materials.

7.Household waste sorting: Assist the waste treatment plant in crushing plastic products in mixed waste, improving sorting efficiency and reducing landfill volume.

Classification And Characteristics Of Blade Shapes For Plastic Crushers

1.Main types:

Blade Type	Structural Characteristics	Application Scenarios	Advantage
Flat blade	The blade is flat, rectangular or square in shape, with a smooth cutting surface and no complex serrated structure.	Suitable for thin-walled, hollow plastic products (such as plastic bottles, woven bags, plastic buckets), as well as hard plastic blocks with regular shapes.	High cutting efficiency, simple structure, suitable for rapid crushing of thin and large volume materials.
Serrated blade	The cutting edge is serrated, and the tooth shape includes triangles, trapezoids, etc. The tooth spacing and angle can be adjusted according to the material.	Suitable for tough or fiber based plastics (such as plastic film, woven bags), increasing friction and improving material gripping ability through tooth profile.	Significant crushing effect on high elasticity or slippery animal materials, reducing material slippage.
Hook blade	The blade is curved in a hook shape, and the blade design is similar to a hook.	Specially designed for irregular plastic waste (such as irregular plastic parts, pipes), to prevent materials from rotating or accumulating in the crushing chamber.	By using a hook shaped structure to forcibly pull materials, the crushing stability is enhanced.
Bending blade (claw blade)	The blade is bent as a whole or partially, forming a specific cutting angle.	Suitable for hard plastics (such as plastic sticks, shoe lasts) or tough materials, increasing shear force by bending the blade.	Complex angle design enhances penetration through hard materials and reduces blade wear.
Blade type blade	The blade is thin and has a relatively thin overall thickness.	For soft thin plastic sheets (such as plastic films and sheets), after cutting, the particles are uniform and the dust is minimal.	Suitable for refined crushing needs, reducing energy consumption and noise.

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2.Shape Selection Suggestions

Thin walled/hollow materials (such as preforms, plastic buckets)	Prioritize the use of flat blade or blade type blades
Resilient/fibrous materials (such as films, woven bags)	Recommended serrated or hooked blade
Hard irregular materials (such as engineering plastic waste)	Choose curved blade or claw blade
Refined crushing demand	Blade type blade is superior

By adapting to different blade shapes, crushing efficiency can be significantly improved and blade lifespan can be extended.

Mainstream Materials And Characteristics

material	characteristic	Applicable scenarios
High speed steel (HSS)	Made of materials such as W6Mo5Cr4V2, with a hardness of HRC55-58 and strong impact resistance, it is suitable for processing ordinary plastic sheets such as ABS, PE, PP, etc. Its wear resistance is 30% higher than that of ordinary steel	Intermittent operation of small and medium-sized crushers for processing plastic waste with a diameter of ≤ 20cm
alloy tool steel	Cr12MoV, 9CrSi and other materials have a hardness of HRC58-62, balancing wear resistance and toughness, and are suitable for crushing high-strength mixed materials (such as plastics containing metal impurities)	Typical design: staggered blade structure to reduce the risk of material blockage
Hard alloy	Tungsten carbide matrix (YG8-YG15 series), with a lifespan of more than 5 times that of high-speed steel, suitable for high load continuous operation (such as industrial grade plastic recycling production lines)	Hard plastics (ABS, PC): prioritize alloy tool steel (Cr12MoV) or hard alloy blades to reduce the risk of blade breakage
		Soft plastics (PE, PP): High speed steel blades (65Mn spring steel) can meet the demand and have lower costs
		Wet environment: Choose stainless steel blades (316L material) to avoid rust and corrosion

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Blade Design Optimization

Multi blade staggered arrangement: improves cutting efficiency and reduces equipment load (such as 12 jaw shredder blades).

Adjustment of blade spacing: It is recommended to control it within 0.1-0.3mm to adapt to materials of different thicknesses (which needs to be adjusted in conjunction with the sieve frame).

Maintenance And Replacement Operations

1.Key points of daily maintenance

Cleaning: Use a high-pressure air gun to clean the plastic residue on the surface of the blade every shift to prevent adhesion and affect cutting accuracy.

Lubrication: Lubricate the bearings and gears every 20 hours to reduce wear (lithium based grease is recommended).

2.Blade replacement process

Power off operation: Before dismantling, ensure that the equipment is completely powered off and clean the residual materials in the crushing chamber.

Installation specifications: The fixed blade edge faces inward, and the movable blade needs to adjust the spacing by rotating the balance wheel (to ensure no collision).

After tightening the screws, a second inspection is required to prevent loosening and blade detachment.

3.Reference for lifespan

High speed steel blade: continuous operation for about 150-300 hours.

Hard alloy blade: The lifespan can reach 800-1200 hours (avoid mixing metal impurities).

4.Selection of homework intensity:

Ordinary plastic: high-speed steel blades;

High load mixture: Cr12MoV alloy steel;

Industrial grade recycling: Hard alloy blades.

Plastic crusher blades need to be selected based on comprehensive material characteristics (wear resistance, impact resistance), plastic type (hardness, humidity), and operating strength

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Plastic Crusher Blades for Efficient Recycling

Our plastic crusher blades are engineered for maximum durability in demanding plastic size reduction applications. Manufactured from premium alloy steels with specialized heat treatment, these blades maintain sharp cutting edges even when processing abrasive or reinforced plastics. The optimized tooth geometry ensures efficient material feeding and consistent particle size output. Ideal for recycling plants and plastic processors, our crusher blades deliver reliable performance in both inline and central granulation systems, helping operations achieve higher throughput with minimal downtime.

Durable Plastic Crusher Machine Blades for Continuous Operation

Our plastic crusher machine blades feature advanced wear-resistant coatings that extend service life in harsh processing conditions. The precision-balanced design reduces vibration and energy consumption while maintaining cutting efficiency. These industrial-grade blades are specifically engineered to handle various plastic types - from soft films to rigid engineering resins. Trusted by plastic recyclers worldwide, our crusher machine blades significantly reduce maintenance costs while improving granulation quality in PET, HDPE, PVC and other plastic processing applications.