Plastic Processing Knives
Plastic Processing Knives Manufacturing
SHJ KNIFE manufactures plastic processing knives for industrial plastic processing and recycling applications. We focus on custom knife solutions for granulating, shredding, pelletizing, crushing, and slitting processes. Our knives support stable operation, long service life, and consistent cutting performance. As a professional plastic knife manufacturer, we work directly with processors, recyclers, and equipment builders worldwide.
Plastic Processing Applications We Serve
Plastic processing requires different cutting forces, edge geometries, and wear resistance at each stage.
We design and manufacture knives based on real operating conditions, not catalog standards.
Plastic Shredding Knives
We produce plastic shredding knives for recycling and size reduction.
These knives handle post-consumer and post-industrial plastic waste under heavy load conditions.
They fit single-shaft and double-shaft shredders used in plastic recycling lines.
Plastic Granulating Knives
Our plastic granulating knives support stable reprocessing before pelletizing.
We manufacture rotor knives, stator knives, and bed knives for granulators of different capacities.
Each knife matches the material type, throughput, and cutting structure.
Plastic Pelletizing Knives
We supply plastic pelletizing knives for strand, water ring, and underwater systems.
Our pelletizer knives deliver clean cuts, stable pellet shape, and long operating life.
We also provide carbide inlay and tungsten carbide solutions for high-output pelletizing lines.
Plastic Crushing & Grinding Knives
For secondary size reduction, we manufacture plastic crusher blades and grinding knives.
These knives support consistent particle size and reduced energy consumption.
They suit crushers and grinders used after shredding or trimming processes.
Plastic Slitting & Trimming Knives
We manufacture plastic slitting knives for film, sheet, and plastic converting lines.
This includes circular slitting knives, razor slitting blades, and shear slitting knives.
These knives support clean edges and stable cutting at high speed.
Custom Plastic Processing Knives Built for Your Machines
We supply both standard replacement knives and custom plastic processing knives. For common machine models, we keep proven knife designs available for replacement needs.
For special processes or operating conditions, we provide full OEM customization.Our engineers develop knife solutions based on:
- Machine model and cutting structure
- Plastic type and material thickness
- Throughput, speed, and operating load
- Wear resistance and expected service life
This flexible approach allows us to support routine replacement while delivering reliable OEM plastic processing knives for long-term operation.
Plastic Processing Knife Manufacturing Capabilities
We carefully select materials for plastic processing knives based on cutting forces and wear conditions. Our options include D2, SKD11, and DC53 tool steels, tungsten carbide, carbide inlay structures, and powder metallurgy steel. We combine these materials with precision CNC machining, vacuum heat treatment, and controlled grinding to maintain flatness and tight tolerances. Proper edge geometry and material choice allow knives to support regrinding when conditions allow, extending service life and reducing replacement frequency for continuous plastic processing operations.
Blade Features & Materials
Plastic Processing Machines We Support
We manufacture replacement knives for plastic processing machines used worldwide. Our knives are compatible with equipment from a wide range of leading brands, including but not limited to:
Erema, Zerma, Herbold, Cumberland, Conair, NGR, Gala, Gamma, Weima, Vecoplan, Rapid, Lindner, Shred-Tech, CM, Vecoplan AG, Previero, SSI Shredding, Polystar, KraussMaffei, Reifenhäuser, Starlinger, Nordson, Davis-Standard, Hosokawa, KraussMaffei Berstorff, American Pulverizer, Maag, KraussMaffei Extrusion, Kreyenborg, Milacron, Battenfeld-Cincinnati.
We design and optimize each knife according to the specific machine structure, material, and operating conditions, not just dimensions.
Disclaimer: All brand names and trademarks mentioned are the property of their respective owners. Mention here does not imply any endorsement or affiliation. Our references indicate only the range of machines we have experience supporting with professional replacement knives.
Talk to Our Engineers About Your Plastic Processing Knives
If you need plastic processing knives for granulating, shredding, pelletizing, crushing, or slitting, our engineers can help.
Share your machine model and application details.
We will propose a suitable knife solution based on real working conditions.
We're one of the most professional plastic cutting knife manufacturers and suppliers, offering grinding products for sharpening knife. Please feel free to buy plastic cutting knife and replacement parts at reasonable price from our factory.
plastic granulator knives, Carbide knives, plastic granulator blades