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Plastic Crusher Plate Knife
SKU: PCB-002
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Product overview
Plastic Crusher Plate Knife is built for pet bottle crushing lines and rigid plastic size reduction. Available in SKD11 / 9CrSi for wear resistance, stable knife clearance, and repeatable sharpening. The straight edge format suits long bolt-on knife bars and clamp-mounted holders.
- PET bottle crushing lines
- Rigid plastic size reduction
- PP/PE/PVC scrap recycling
- Injection runner and profile regrind
Materials & heat treatment
Nominal chemical grades listed below are starting points. Final hardness band and sub-zero / temper protocol are matched to your material stream (filled vs. unfilled plastic, wood species moisture, etc.). Mention your current failure mode—chipping, polishing, or heat checking—in the inquiry form.
SKD11 / 9CrSi
Specification table
| Product family | Plastic Crusher Knives and Blades |
|---|---|
| Material | SKD11 / 9CrSi |
| Subcategory | General crusher knife set |
| Profile | Straight plate knife |
| Typical applications | PET bottle crushing lines / Rigid plastic size reduction / PP/PE/PVC scrap recycling / Injection runner and profile regrind |
| Supply mode | Custom replacement, repeat order, or OEM-equivalent matching by sample/drawing. |
| Matching method | Quote from sample, measured drawing, DXF/PDF, or installed-knife photos before production confirmation. |
| RFQ dimensions to confirm | Length, width, thickness, bolt-hole pattern, center distance, edge angle, bevel direction, and one photo with a ruler. |
| Before shipment | Material grade, edge finish, hole position, and packing photos can be confirmed before shipment. |
Expert selection notes
Plastic Crusher Plate Knife should be treated as a replacement knife reference inside the Plastic Crusher Knives and Blades family, not as a universal standard size. For a reliable quote, confirm the installed position, edge direction, hole pattern, thickness, and the photos of the used knife before choosing steel grade or heat treatment.
If the blade works against a fixed bed knife, counter knife, screen, die plate, or anvil, send photos of both sides of the cutting pair. Most premature wear or dust problems come from the full cutting system, not from the moving knife alone.
Drawing & OEM matching
For production intent, share PDF/DXF drawings or high-resolution photos with a scale reference. Leader Blades cross-checks mounting geometry against similar profiles in the Plastic Crusher Knives and Blades before confirming material and delivery week.
Detailed Application Guides
HDPE and Rigid Plastic Recycling Knives
Source-backed application guide for shredder cutters, crusher blades, granulator knives, and bed knives used on HDPE and PP rigid-plastic lines.
Open guidePVC Window and Profile Recycling Knives
Source-backed guide for shredder cutters, crusher blades, granulator knives, and bed knives used on PVC windows, profiles, shutters, and smaller pipes.
Open guideWEEE and Appliance Recycling Shredder Knives
Source-backed guide for shredder cutters, e-plastics crusher blades, granulator knives, and bed knives used in WEEE and appliance recycling lines.
Open guideIBC Tote and HDPE Drum Recycling Knives
Source-backed guide for shredder, crusher, and granulator knives used on IBC tanks, plastic drums, and blow-molding rejects.
Open guideHDPE pipe and purge-lump recycling knives
Source-backed guide for shredder, crusher, and granulator knives used on HDPE pipe, purge blocks, and two-stage rigid-plastic reduction.
Open guidePlastic pallet and crate recycling knives
Source-backed guide for shredder, crusher, and granulator knives used on plastic pallets, crates, totes, and other bulky rigid transport items.
Open guideHDPE wheelie-bin recycling knives
Source-backed guide for shredder, crusher, granulator, and fixed-side parts used on wheelie-bin and waste-bin recycling lines.
Open guidePlastic purge-lump recycling knives
Source-backed application guide for startup lumps, purge blocks, and dense changeover scrap across shredder, crusher, and granulator stages.
Open guide
