Non-Standard Packaging Machine Knives

Packaging Blades

Packaging blades for film, pouch, carton, and wrapper cutting in high-speed packaging lines.

Customized sizes are available, according to your drawing or sample.

  • Fully Custom
  • Expedited Production Processing

YISHI Machinery manufactures industrial packaging blades for horizontal and vertical form-fill-seal machines, pouch packers, overwrappers, and slitting lines. Blades are available in D2 (equivalent SKD11/Cr12MoV), high-speed steel (HSS M2), and 9CrSi tool steel, vacuum heat-treated to HRC 56–65 for balanced edge retention and impact toughness. Dimensional tolerances held to ±0.03 mm on thickness and ID and ±0.1 mm on OD ensure consistent register with OEM knife holders. Custom profiles, serrations, and coatings can be supplied from customer drawings or samples.

Take a Closer Look

  • Flexible Food Packaging

    Horizontal form-fill-seal and vertical bagging machines using laminated films; YISHI blades provide burr-free cuts that prevent seal contamination and reduce film waste.

  • Shrink Wrap & Overwrap

    Rotary knives for LDPE shrink bundlers and overwrappers; D2 blades maintain edge integrity through high-cycle production runs without chipping.

  • Pouch Packing Lines

    Guillotine and rotary cut-off knives for stand-up pouch machines; HSS M2 blades offer superior wear resistance against abrasive zipper films and foil laminates.

  • Label & Adhesive Tape Converting

    Perforating and slitting blades for pressure-sensitive adhesive tapes; precision ground edges and optional non-stick coatings reduce adhesive build-up and downtime.

  • Medical Device Packaging

    Cleanroom-compatible blade materials for sterile barrier packaging; supplied with certifiable material test reports and electropolished finish on request.

Features of Products:

  • Minimum cutting resistance
  • Notch sharpness 
  • Durface smooth
  • Persistent and endurable
Precision cutting tools for packing materials

Technical Parameters

Product Type
Packaging Blades
Size
Customized
Material
9CrSi; HSS; Stainless steel; or selected by the customers
Hardness
56-65 HRC (by the material selected)
Dimension tolerance
OD:±0.1, ID:±0.03 -0.00, Thickness: ±0.03
Thickness
0.8 ~ 3.0 mm
OEM service
Available
Main market
Western Europe, Southeast Asia

Technical Specifications

Dimensions OD: 50–400 mm typical, ID: 12–100 mm typical, Thickness: 0.8–3.0 mm; custom sizes available
Materials 9CrSi, D2 (Cr12MoV/SKD11), HSS M2, 440C stainless, or customer-specified
Hardness HRC 56–65 depending on material selection
Tolerances OD: ±0.1 mm, ID: +0.00/−0.03 mm, Thickness: ±0.03 mm; tighter tolerances available
Surface Finish Ground to Ra 0.4 µm or finer; mirror polish optional
Customisation Reverse engineering from physical sample or customer drawing (CAD/DXF); OEM part number engraving; non-standard bore, keyway, and mounting configurations

Why Choose Yishi

YISHI Machinery operates an in-house vacuum heat-treatment facility with computer-controlled quench cycles, enabling batch-to-batch hardness uniformity within ±1 HRC. All packaging blades are ground on CNC cylindrical and surface grinders with automatic size compensation, holding dimensional tolerances to ±0.005 mm on critical features. Edge inspection is performed at 50× magnification, and Rockwell hardness testing is documented per lot. We offer expedited 7-day turnaround on standard material blanks and welcome single-piece prototypes for evaluation.

Frequently Asked Questions

  • Which steel grade is right for my packaging application?

    D2 (HRC 58–62) offers high edge retention for abrasive films and paper; HSS M2 (HRC 62–65) excels in high-speed intermittent cuts; 9CrSi (HRC 56–60) is a cost-effective option for thin films and less demanding cycles. Provide your material type and machine speed for a specific recommendation.

  • Can YISHI machine blades to match my existing OEM part?

    Yes. Send us your OEM part number, a dimensioned sketch, or a sample blade. We reverse-engineer to the same profile, bore, and mounting configuration, frequently at 20–40% below OEM cost.

  • What are the standard tolerances for packaging blades?

    Our standard tolerances are OD ±0.1 mm, ID +0.00/–0.03 mm, thickness ±0.03 mm. Tighter tolerances down to ±0.005 mm are available for high-speed lines.

  • Do you offer blade sharpening or reconditioning?

    Yes, we offer re-sharpening services for industrial packaging blades, restoring original geometry and edge quality. Contact us with your blade condition for a feasibility assessment.

  • What is the minimum order quantity?

    We accept orders from single prototype blades to full production runs. For custom profiles, the cost-effective MOQ is typically 10–50 pcs depending on complexity.

  • What surface treatments are available to extend blade life?

    We can apply TiN (gold), TiCN (grey), and DLC (black) coatings to reduce friction, prevent adhesive build-up, and extend edge life by 2–5×, depending on the application.

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