Tungsten Carbide Inlaid Shredder Rotor Knives
Shredder rotor knives (rotating blades) are critical wear parts that directly impact shredder throughput, energy consumption, and downtime. Tungsten carbide inlaid rotor knives are built for abrasive plastic recycling applications where longer edge life and stable cutting performance matter.
Key Advantages of Carbide‑Inlaid Rotor Knives
Designed for longer wear life and more stable shredding—especially when processing tough plastics, contaminated scrap, or abrasive feedstock.
Exceptional Wear Resistance
The tungsten carbide inlay increases edge wear resistance, helping you extend change intervals and reduce unplanned downtime.
Stable Cutting Performance
A more consistent cutting edge supports stable throughput and can help lower energy draw compared with worn or chipped knives.
Made‑to‑Order Fit
Rotor knives are typically customized to match your rotor model, mounting pattern, and cutting geometry requirements.
Materials & Heat Treatment
Knife performance depends on base material selection, carbide inlay quality, and heat treatment control. We optimize these for your application and material mix.
Balanced Hardness & Toughness
For many recycling shredder applications, advanced heat treatment (such as vacuum heat treatment and triple tempering) is used to achieve a practical balance between hardness and impact resistance. Typical hardness for this configuration is HRC 56–58 (application dependent).
Why Carbide Inlay
Carbide inlay targets the highest-wear area of the rotor blade, helping the edge resist abrasion from fillers, dirt, labels, and general contamination common in plastic recycling.
Fitment & Customization
Send a drawing or a sample knife. We’ll confirm fitment and recommend the right wear solution.
Dimensions & Hole Pattern
Length, width, thickness, mounting holes, countersinks, and tolerances matched to your rotor.
Edge Geometry
Cutting edge angle and profile aligned with your material type and cutting chamber setup.
Material Options
Base steel + carbide configuration selected for wear, shock loading, and expected maintenance cycles.
Typical Applications
These shredder rotor knives are commonly used on recycling shredders handling a wide range of plastics and mixed scrap streams.
Post‑Consumer Plastics
Hard plastics, films, and packaging with typical contamination—labels, sand/dust, and light metals.
In‑House Scrap
Stable, repeatable shredding of production scrap for downstream washing, granulating, or pelletizing.
Pre‑Shredding Before Granulation
Reduce bulky material to manageable size to improve overall line efficiency and feeding consistency.
Shredder Rotor Knife Photos
Reference photos of carbide-inlaid shredder rotor knives and rotating blades.
Specification Checklist (For Fast Quotation)
Share these details to help us confirm compatibility and quote accurately.
| Item | What to Provide |
|---|---|
| Knife type | Rotor knife / rotating blade (and any matching fixed knives if needed). |
| Machine / rotor model | Shredder brand + model (or rotor drawing). Photos of the knife seat are helpful. |
| Dimensions | Length, width, thickness (or send an existing knife sample). |
| Mounting pattern | Hole quantity, diameter, spacing, countersink/counterbore details. |
| Material / wear option | Carbide inlay type + base material preference (or tell us your feedstock and we’ll recommend). |
| Hardness target | Typical option: HRC 56–58 (application dependent) with controlled heat treatment. |
| Quantity | Set quantity and any spare sets required. |
| Operating conditions | Material type (PE/PP/PET/etc.), contamination level, expected throughput, and current knife life. |
If you’re unsure about measurements, send a knife sample or a technical drawing—we’ll confirm fitment before production.
FAQs
Common questions about shredder rotor knives, materials, and customization.
What is the difference between a rotor knife and a fixed knife?
The rotor knife (rotating blade) mounts on the shredder rotor and performs the primary cutting action as the rotor turns. The fixed knife mounts on the cutting chamber and forms a shearing pair with the rotor knife. Proper clearance between the two is critical for cutting performance and knife life.
When should I choose tungsten carbide inlay?
Carbide inlay is recommended when knife edges wear quickly due to abrasion (contamination, fillers, dust) or when you want longer maintenance intervals. We’ll recommend the right wear option based on your material mix and operating conditions.
Can you manufacture rotor knives based on a sample?
Yes. You can send a physical sample knife or a technical drawing. We confirm dimensions, hole pattern, and geometry, then propose material/heat-treatment options for your application.
What information do you need to quote lead time and price?
We typically need the machine/rotor model (or drawing), knife dimensions and hole pattern, quantity, and your feedstock + wear conditions. With those, we can confirm the right configuration and provide a quote with production lead time.
INQUIRIES
To get the latest prices and lead times, send us a message using the form below.
