Industrial Shredder Machines & Blades Manufacturer - Nanjing Dete
ABOUT US
When your shredder blades wear out or crack unexpectedly, production stops and costs pile up. Nanjing Dete solves this — as a factory-direct manufacturer with 15+ years of blade-making experience, we match the right material (SKD11, D2, H13, 9CrSi) and vacuum heat treatment (HRC 55-62) to your working conditions, delivering blades that last longer, cut cleaner and run more reliably. From standard single/twin/four-shaft replacement blades to fully custom OEM & ODM knives per your drawings or samples, our CNC-machined, hardness-tested blades are trusted by recycling plants and shredder manufacturers across 50+ countries.
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Premium Material & Superior Durability
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Customized OEM & ODM Solutions
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Professional Manufacturing Experience
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Global Service & Reliable Support
PRODUCT CENTER
Why Choose Us
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COMPETITIVE ADVANTAGE
AFactory-direct — we own the production line, no middlemen markup. Same blade spec, 20-30% lower price than traders. Flexible MOQ from single samples to 20-ton bulk orders, with stable monthly output of 8,000+ blades. -
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PRECISION MACHINING
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IN-HOUSE EQUIPMENT
A20+ CNC machining centers, 4 vacuum heat treatment furnaces, 8 surface grinders and a full metallurgical lab. We handle the entire process in-house — from steel cutting to final hardness testing — no outsourcing, no quality gaps. -
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QUALITY ASSURANCE
INDUSTRY APPLICATIONS
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PLASTIC RECYCLING
From PET bottles to HDPE drums — SKD11/D2 blades crush, shred and granulate all thermoplastics with sharp, consistent output. Vacuum heat treatment prevents chipping even at high feed rates.
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TIRE RECYCLING
Car tires, truck tires, OTR tires — H13 hot-work steel survives the 200°C+ heat generated when rubber shreds, maintaining hardness and impact resistance cycle after cycle.
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INDUSTRIAL WASTE
Mixed industrial scrap is unpredictable. Our 9CrSi and D2 blades handle the shock of metal scraps, the abrasion of paper stock and the stringy challenge of textile waste without cracking or wrapping.
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E-WASTE RECYCLING
PCB boards, wiring harnesses, LCD panels and small appliances — four-shaft configuration with SKD11 tearing blades liberates copper and precious metals for downstream sorting with minimal fines.
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METAL SCRAP
Aluminum cans, copper wire, steel turnings, alloy castings — 9CrSi air-hardened steel delivers the hardness of D2 with better toughness, ideal for high-impact metal shredding without edge chipping.
NEWS INFORMATION
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2026.10.19
Shredder Spare Parts: A Buying and Stock Checklist for Double-Shaft Machines
Build a shredder spare-parts plan around the installed machine, approved part drawings and the cost of waiting for a replacement. Start with cutters and spacers, then identify the bearings, seals, drive components and controls that actua...
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2026.10.19
Granulator Blade Sharpening: When to Regrind, Replace and Check Clearance
Granulator blade sharpening is suitable when the knife can be restored to its approved geometry and remaining dimensions without retaining unacceptable damage. Replace or hold a knife for specialist assessment when its condition, mountin...
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2026.10.17
How to Compare Shredder Blade Quotes Beyond Unit Price
A shredder blade price is useful only when the quotation describes the cutter set your machine needs. Two suppliers may quote the same outside diameter and steel grade while offering different quantities, tooth profiles, shaft interfaces...
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2026.10.17
What Is the Difference Between a Wood Shredder and a Wood Chipper?
A furniture factory, a pallet recycler and a forestry contractor may all need to reduce wood, yet the material arriving at each machine is different. Choosing equipment from the words “wood shredder” or “wood chipper” alone can leave the...
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2026.10.16
Shredder Blade Design: Tooth Profile, Thickness and Replacement Fit
A useful shredder blade design matches the incoming material, required output and complete cutting assembly. Tooth count, body thickness and material grade are separate parts of that decision. For replacement purchasing, establish the ap...
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2026.10.16
Industrial Cardboard Shredder: How to Choose for Waste Reduction
Choose an industrial cardboard shredder by the cardboard you receive, the output your next process accepts and the workload your team must complete. Confirm those three points before comparing motor power or purchase price. For a site th...
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