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Home Packaging Machine Knives Vertical Packaging Machine Serrated Blade
  • Jagged-tooth bladed part used in vertical packaging machine bag-making and cutting processing
  • Serrated blade for vertical packing machines
  • Industrial cutting tool for vertical packaging lines
  • Durable serrated knife used in packing equipment
  • Precision blade for vertical bag sealing and cutting
  • High-performance serrated blade for packaging systems
Non-Standard Packaging Machine Knives

Vertical Packaging Machine Serrated Blade

Serrated blade for vertical packaging machines, made for clean bag cutting and sealing lines.
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Customized sizes are available, according to your drawing or sample.

  • Fully Custom
  • Expedited Production Processing

YISHI Machinery manufactures serrated blades for vertical form-fill-seal (VFFS) and other vertical packaging machines. These blades are precision-ground from tool steels such as Cr12MoV (D2 equivalent), M2 high-speed steel, or W6Mo5Cr4V2, achieving a hardness of HRC 58–62 after vacuum heat treatment. The serrated tooth profile ensures clean, non-slip cutting of laminated films, polyethylene, and multi-layer packaging materials, reducing material tearing and downtime. Available in custom diameters, thicknesses, and tooth geometries to match OEM specifications or your supplied drawings.

Take a Closer Look

  • Food Packaging
  • Pharmaceutical Packaging
  • Chemical and Powder Packaging
  • Pet Food and Animal Feed
  • Food Packaging

    Used in VFFS machines for cutting laminated snack bags, coffee pouches, and frozen food wrappers. The serrated edge prevents film slippage, ensuring clean, repeatable cuts at speeds up to 120 packs per minute.

  • Pharmaceutical Packaging

    Precision serrated blades for cutting medical-grade foil and film in stick-pack and sachet machines, meeting strict hygiene and accuracy standards.

  • Chemical and Powder Packaging

    Suitable for cutting heavy-duty multi-wall bags and woven polypropylene sacks in vertical bagging systems, where durability and resistance to abrasive fillers are critical.

  • Pet Food and Animal Feed

    Serrated blades for cutting tough, grease-resistant films used in pet food pouches, maintaining edge sharpness despite oily residues.

Product Factures:

  • We produce the serrated knife type article mainly includes the serrated knife,flat circular knife and abnormal tooth knife ,it is mainly used for cutting food packaging ,has a broad market prospect.
  • High precision,high intensity,excellent hardness,small thermal deformation
  • Lower yearly knife and blade consumption
  • Reward customers with high productivity.
Blade with serrated edge for vertical bagging lines

Technical Parameters

Product name Vertical Packaging Machine Serrated Blade
Product model Excellent Quality Low Price Vertical Packaging Machine Serrated Knife
Product material Cr12MoV, Alloy,W6Mo5Cr4V2,W18Cr4V ,9CrSi,
Processing technology Independent production
Surface treatment Routine processing

Technical Specifications

Dimensions OD 100–400 mm, ID 20–80 mm, thickness 1.0–5.0 mm; tooth pitch 2–10 mm depending on film type. Custom sizes available.
Materials Cr12MoV (D2), W6Mo5Cr4V2 (M2), W18Cr4V (T1), 9CrSi, or customer-specified alloy
Hardness HRC 58–62 after vacuum heat treatment with double tempering
Tolerances OD/ID ±0.02 mm, thickness ±0.01 mm, tooth profile ±0.05 mm
Surface Finish Cutting edge Ra ≤ 0.4 µm; mounting surfaces Ra ≤ 0.8 µm
Customisation Buyers can specify OD, ID, thickness, tooth shape, pitch, material grade, and coating (e.g., TiN, CrN). OEM part number or drawing required for exact fit.

Why Choose Yishi

YISHI Machinery operates an in-house production facility with CNC grinding, wire EDM, and vacuum heat treatment capabilities. Every serrated blade is manufactured from certified steel grades with full traceability. Our quality control includes hardness testing, dimensional inspection with CMM, and edge sharpness verification. We support low-volume custom orders and offer expedited delivery for replacement blades. With over a decade of experience supplying packaging converters, we provide technical support to match blade geometry to your specific film and machine parameters.

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Frequently Asked Questions

  • What steel grades are available for serrated packaging blades?

    We offer Cr12MoV (equivalent to D2), M2 (W6Mo5Cr4V2), W18Cr4V, and 9CrSi. The choice depends on the film material, machine speed, and desired blade life. Our engineers can recommend the optimal grade based on your application data.

  • Can you match the blade dimensions to my existing machine?

    Yes. Provide your OEM part number, a drawing, or a sample blade, and we will reverse-engineer the exact OD, ID, thickness, and tooth profile. Tolerances are held to ±0.02 mm to ensure direct replacement.

  • What is the typical hardness and how does it affect performance?

    Blades are vacuum heat-treated to HRC 58–62. This range provides a balance between edge retention and toughness, preventing chipping on hard films while maintaining sharpness for millions of cuts.

  • Do you offer coated blades for extended life?

    Yes, we can apply PVD coatings such as TiN (titanium nitride) or CrN (chromium nitride) to reduce friction and increase surface hardness. Coatings are recommended for abrasive or sticky films.

  • What is the lead time for custom serrated blades?

    Standard custom orders ship within 15–20 working days after drawing approval. Expedited service is available for urgent replacements. Contact us with your requirements for a precise timeline.

  • How do I determine the correct tooth pitch for my packaging film?

    Tooth pitch depends on film thickness, elasticity, and machine speed. Generally, thinner films (20–50 µm) require finer serrations (2–4 mm pitch), while thicker laminates (80–150 µm) benefit from coarser teeth (5–10 mm). We can provide samples for testing.

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