Replacement Blades for Plastic Granulators
Keep your plastic granulator machine cutting cleanly and efficiently. We supply rotor and stator knives made from premium tool steels with precise grinding, stable hardness, and fast turnaround—customized to your dimensions and mounting pattern.
Built for Wear Parts Reality
Blade quality directly impacts throughput, fines, energy use, and downtime. These knives are engineered for repeatable cutting performance in demanding recycling environments.
Stable Wear Life
Tool-steel selection and controlled heat treatment deliver consistent hardness and toughness for longer edge retention.
Precision Fit
Accurate thickness, flatness, hole alignment, and bevel angles help keep the cutting gap stable and reduce vibration.
Cleaner Cuts, Fewer Fines
Sharper geometry and correct relief reduce dust/fines and improve downstream washing and pelletizing performance.
Fast Replacement Cycles
Common sizes can ship quickly; custom production is streamlined with drawings or samples to minimize downtime.
What’s Included
We supply replacement knives for granulators/crushers and help you select steel and geometry based on your feedstock and operating conditions.
- Rotor knives
Primary cutting knives mounted on the rotor for continuous size reduction. - Bed knives (stator)
Fixed knives that form the cutting gap with the rotor knives for consistent shearing. - Counter knives (optional)
Used on specific cutting chamber designs to improve stability and cut quality. - Custom machining
Hole patterns, keyways, relief/bevel angles, and surface finish to match your existing setup.
Steel Options (Typical)
Selection depends on abrasiveness, contamination, impact load, and required edge life. Share your material and we’ll recommend the best fit.
| Steel | Best For | Notes |
|---|---|---|
| SKD11 | General-purpose hard plastics and mixed regrind | Excellent balance of toughness and wear resistance; a reliable workhorse choice. |
| D2 | Abrasive feeds and longer wear targets | Higher wear resistance; recommended when contamination or fillers increase abrasion. |
| W18 (on request) | Specific high-wear or special temperature scenarios | Offered for certain applications upon request; selection depends on your process conditions. |
Custom materials (e.g., DC53 or carbide options) can be evaluated based on your feedstock and economics.
How to Order (Fast Quote Checklist)
The more accurate the input, the better your fit and cutting performance. A drawing or sample is ideal.
- Dimensions
Length × width × thickness, plus tolerances if you have them. - Mounting Pattern
Hole positions/diameters, countersinks, keyways, and orientation. - Knife Geometry
Bevel angle, relief angle, and whether the edge is single/double-sided. - Material & Contamination
Plastic type, moisture, fillers, sand/metal contamination, and expected throughput.
Need Help Identifying Your Knife?
Send photos of the blade, hole pattern, and your machine model. We’ll confirm the specification and propose the steel option.
Send Dimensions & Get Lead TimeRelated Auxiliary Equipment
Common add-ons and spare parts that keep a recycling line stable and productive.
FAQ
Do you stock standard sizes?
Can you match our existing cutting gap and bevel angle?
Do you provide sharpening recommendations?
How fast can you deliver?
Request Price & Lead Time
Send your knife dimensions (or upload a drawing/sample details) and we’ll confirm the specification, steel option, and delivery schedule.
