Products
Double Shaft Shredder Blades | OEM Replacement Knives
Key Benefits of Double Shaft Shredder Blades
1. Custom OEM Replacement Fit
2. Designed for Plastic, Rubber and Mixed Waste
3. Material and Heat Treatment Matched to Application
4. Tooth Profile and Spacer Matching Support
5. Manufacturing and Inspection for Reliable Use
Features
Double Shaft Shredder Blades for Industrial Recycling Machines
SHJ KNIFE manufactures double shaft shredder blades and OEM replacement shredder knives for industrial recycling machines. Whether you process plastic, rubber, mixed waste, light metal scrap or other difficult materials, we can produce custom blades according to drawings, worn blade samples, machine models, photos or key dimensions.
For buyers who need reliable double shaft shredder blades, twin shaft shredder blades or industrial shredder knives, our focus is not only blade supply, but also fit, material selection, tooth profile, heat treatment and long-term cutting stability. Send us your blade drawing or old blade photo, and our team will help confirm the right replacement solution.
Send Drawing or Blade Photo for Quote
Custom OEM Replacement Shredder Knives
Industrial shredders often use different blade thicknesses, bore shapes, tooth profiles and spacer combinations. Standard blades may not match your machine perfectly, especially when replacing old knives from double shaft or twin shaft shredders. That is why SHJ KNIFE provides custom OEM replacement knives based on your actual shredder structure and working material.
We can manufacture custom shredder blades for plastic recycling lines, rubber shredding, waste processing, packaging material recycling, pipe and profile crushing, film recycling, injection waste recycling and heavy-duty industrial shredding applications.
Made to Fit Your Existing Shredder
Our double shaft shredder blades can be customized according to your machine model, old blade sample, drawing or measured dimensions. We help check blade outside diameter, thickness, inner bore shape, tooth number, spacer size and shaft matching requirements before production.
This helps reduce installation problems and makes the replacement process easier for recycling plants, machine repair teams and industrial knife distributors.
Designed for Real Shredding Conditions
Different waste streams require different blade designs. Plastic film, rigid plastic, rubber, mixed waste and light metal scrap do not create the same cutting load. We select blade material, hardness, tooth profile and heat treatment according to your shredding application.
For heavy-duty shredding, we focus on wear resistance, impact resistance, cutting stability and reduced downtime.
What We Need for a Fast Quotation
If you need a fast quote for double shaft shredder blades or replacement shredder knives, you do not always need a complete technical drawing. You can send us an old blade photo, worn blade sample, machine model or key dimensions. Our team will review the information and confirm what else is needed before production.
| Blade size | Outside diameter, thickness, inner bore size and blade quantity |
| Blade structure | Tooth number, tooth profile, hook angle, spacer size and shaft matching details |
| Machine information | Shredder brand, model, shaft type and working speed if available |
| Working material | Plastic, rubber, tire, film, pipe, mixed waste, light metal scrap or other material |
| Reference files | Drawing, old blade photo, used blade sample, measurement sketch or machine nameplate photo |
Tooth Profile, Spacing and Blade Geometry
The performance of double shaft shredder blades is closely related to tooth profile, blade spacing, root strength and cutting clearance. A blade with the wrong geometry may cause poor feeding, uneven shredding, fast wear, blade chipping or excessive load on the shredder.
For twin shaft shredder blades, we pay attention to the matching between blade teeth and spacers, because this directly affects biting force, material grabbing, output size and cutting stability. When processing thick plastic lumps, rubber or mixed waste, stronger tooth roots and suitable heat treatment are especially important.
Material Selection by Shredding Application
Powerful Solutions For Business Growth
A good shredder blade material should be selected according to the actual material being shredded. For plastic recycling, the blade needs stable cutting ability and wear resistance. For rubber and tire shredding, impact resistance and tooth strength are more important. For mixed waste and light metal scrap, the blade must balance hardness, toughness and resistance to chipping.
| Plastic recycling | Suitable for rigid plastic, PET bottles, PE, PP, pipes, profiles, injection waste and plastic lumps |
| Film and soft material | Requires stable grabbing ability, proper tooth design and cutting clearance to reduce wrapping problems |
| Rubber and tire shredding | Requires stronger tooth roots, good impact resistance and suitable hardness control |
| Mixed waste | Requires a balance between wear resistance and toughness for unstable working conditions |
| Light metal scrap | Requires better resistance to impact, edge damage and unexpected hard material contact |
Compatible with Double Shaft and Twin Shaft Shredders
SHJ KNIFE can produce compatible shredder blades for many double shaft and twin shaft shredder structures. If you are replacing blades from existing machines, please send the machine brand, model, blade drawing or old blade sample. We can help review whether the blade size, inner bore, tooth profile and spacer combination can be reproduced.
Common machine references may include Vecoplan, Weima, SSI, Lindner, Untha, Zerma, Shred-Tech, Granutech, Harden, Forrec and other industrial shredder systems. Brand names are used only to describe blade compatibility and replacement requirements. SHJ KNIFE is not affiliated with these original equipment manufacturers.
Manufacturing and Inspection Process
Our production process for industrial shredder knives includes drawing review, material selection, cutting, CNC machining, heat treatment, grinding, dimensional inspection and protective packaging. Each step is controlled to help improve blade fit, edge stability and service life in demanding recycling applications.
Before production, we check the main blade dimensions and working conditions. During manufacturing, we focus on machining accuracy, heat treatment stability and final inspection. For replacement blades, this process helps reduce the risk of installation mismatch and early blade failure.
Applications for Plastic and Recycling Lines
These double shaft shredder blades are widely used in plastic recycling plants, waste recycling lines, rubber processing, packaging waste processing, pipe and profile recycling, film recycling, injection waste crushing and general industrial shredding systems.
For plastic shredder blades, we can help choose suitable material and geometry according to the type of plastic, feeding method, output size and working load. For rubber, tire or mixed waste shredding, we can adjust tooth strength, blade hardness and impact resistance according to the real working conditions.
FAQs About Double Shaft Shredder Blades
1. Can you make double shaft shredder blades without drawings?
Yes. If you do not have a complete drawing, you can send old blade photos, used blade samples, machine model information or key dimensions. Our team will review the details and confirm what information is still needed for quotation and production.
2. What dimensions are needed for a shredder blade quotation?
The most important dimensions include outside diameter, blade thickness, inner bore size and shape, tooth number, tooth profile, spacer size and quantity. If possible, please also provide the machine brand, model and material being shredded.
3. What is the difference between double shaft and twin shaft shredder blades?
In many industrial recycling applications, double shaft shredder blades and twin shaft shredder blades refer to similar blade systems used on two-shaft shredders. The exact blade structure still depends on the shredder design, shaft layout, spacer system and cutting requirements.
4. How do I choose the right material for shredder blades?
The right material depends on the shredded material, working load, contamination level and expected service life. Plastic shredding often requires wear resistance and stable cutting. Rubber and mixed waste usually require better impact resistance. We can recommend suitable material and heat treatment after reviewing your application.
5. Why do double shaft shredder blades chip or wear too fast?
Fast wear or chipping may be caused by unsuitable material, improper hardness, wrong tooth profile, excessive cutting clearance, hard foreign objects or poor matching between blades and spacers. Checking the worn blade condition can help identify the main cause before producing replacement knives.
6. Can you supply blades compatible with Vecoplan, Weima, SSI or Lindner shredders?
We can manufacture replacement blades according to drawings, samples or dimensions for many industrial shredder systems. Please provide your machine model and blade details for review. Brand names are used only for compatibility reference.
Send Your Drawing or Old Blade Photo for Quotation
Need custom double shaft shredder blades or OEM replacement shredder knives? Send us your blade drawing, old blade photo, sample, machine model or key dimensions. SHJ KNIFE will help confirm the blade structure, material, tooth profile and quotation details for your recycling machine.
Hot Tags: Double Shaft Shredder Blades | OEM Replacement Knives, Double Shaft Shredder Blades | OEM Replacement Knives suppliers, Double Shaft Shredder Blades, Heavy Duty Shredder Knives, Granulator knife, rapid granulator blades, plastic granulator knives, granulator blades, Carbide knives, plastic granulator blades
You Might Also Like
Send Inquiry
