Misiqi designs and manufactures custom waste crushing blades for recycling and size-reduction lines. We supply rotor and stator knives for single-shaft shredders, cutters for twin-shaft shredders, and granulator (fly/bed) blades—built to your drawings or reverse-engineered from samples. OEM/ODM ready, factory pricing, predictable lead times.
Materials & Heat Treatment
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Tool steels: D2/SKD11, Cr12MoV, 9CrSi/6CrW2Si for high wear resistance
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Alloy steels: 42CrMo for impact-resistant parts (spacers, shafts, holders)
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Hot/abrasion options: H13, carbide-tipped edges for glass- and mineral-loaded streams
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Treatments: through-hardening or differential hardening; optional cryogenic stabilization; nitriding/boronizing; hardfacing overlays for edge build-up resistance
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Typical hardness: 56–60 HRC (D2/SKD11) / up to 62 HRC for fine granulation knives (application-dependent)
Knife Types We Supply
Single-Shaft Shredder Knives
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Square/rectangular rotor knives with chamfers; radius or flat edges
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Fixed stator knives with adjustable slots; wear shims available
Twin-Shaft Shredder Cutters
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Single-hook, double-hook, multi-hook, and notched profiles
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Concave/convex discs, toothed spacers; common module thicknesses 30/43/60 mm（or made-to-drawing）
Granulator / Crusher Blades
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Fly (rotor) knives and bed knives; straight or stepped edges
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Low-clearance geometries for clean, uniform regrind
Applications
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MSW & bulky waste — furniture, pallets, construction waste
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Plastics — PP/PE/PET/ABS sprues, purgings, film & sheet; edge-trim recycling
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Tires & rubber — tread/sidewall, whole tire pre-cutting
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WEEE / cables — housings, boards, wire with copper/aluminum cores
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Wood & biomass — MDF, particle board, green waste
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RDF/SRF preparation — sizing for cement kiln and power-plant feed
Engineering & Edge Geometry
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Edge styles: straight, serrated, chamfered, radius, multi-tooth profiles
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Hook forms tuned for grab vs throughput; relief angles to reduce power draw
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Clearance windows for granulators (µm-level targets where required)
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Seat & pocket tolerances to minimize micro-movement and bolt stress
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Optional anti-adhesive finishing for sticky films and rubber
Precision & Tolerances (Typical)
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Shredder cutters: OD/ID ±0.05–0.10 mm; thickness ±0.02–0.05 mm; flatness ≤0.03 mm
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Granulator blades: thickness ±0.01–0.02 mm; parallelism ≤0.01–0.02 mm; edge runout ≤0.02 mm
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Surface finish: Ra 0.4–0.8 µm on sealing/stack faces; finer on cutting edges as required
Controle de qualidade
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Steel grade & hardness verification
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In-process dimensional checks (CMM/ID-OD/height gauge)
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Edge profile & burr inspection；balance/runout checks for rotating sets
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Batch traceability；inspection report supplied on request
Spare Sets, Stacks & Accessories
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Spacer rings, scrap-wipers, clamping blocks, bolts
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Shim packs for clearance tuning；regrind & refurbishment programs available
OEM/ODM Workflow
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Share specs: drawing (STEP/DWG/PDF) or sample, material stream, feed size, target output size, throughput
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DFM e cotação: profile, hardness window, clearances, stack configuration, price & lead time
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Samples/pilot: verify fit, power draw, and cut quality on your line
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Production & QC: controlled heat treat, precision grinding, 100% critical checks
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Packing & delivery: rust-proof packing, edge guards, labeled sets; express for samples, sea/air for bulk
Embalagem e logística
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Oil-paper or vacuum bag + edge guards；desiccant for sea freight
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Export cartons / plywood crates for heavy stacks
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Terms: EXW/FOB/CIF/DDP；global courier for urgent spares
RFQ Checklist (Copy/Paste)
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Part drawing or sample photos（OD/ID/thickness, or L×W×T；hole pattern/seat size）
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Material & hardness target（e.g., D2 @ 58–60 HRC / 42CrMo @ 32–38 HRC for holders）
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Machine type（single-shaft / twin-shaft / granulator；model if known）
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Feed material & target size（e.g., PP purgings → 12 mm；tires → 50×50 mm）
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Throughput & line speed；tolerances/clearances required
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Quantity（trial + annual）、delivery address、Incoterms
Chamada para ação
Request a Quote & Samples — Send your drawing or sample photos. We’ll return DFM notes, material/edge recommendations, pricing, and lead time within one business day.