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Home Film Slitting Blades Three Hole Razor Blades for Polyfilms Industry
  • Three-hole cutting blade for polyfilm industrial slitting operations
Non-Standard Film Slitting Blades

Three Hole Razor Blades for Polyfilms Industry

Three Hole Razor Blades for Polyfilms Industry is widely used in bag making machine, kraft packaging bags, pearl film, kraft paper plastic, release film, bopp film, key battery diaphragm and other slitting.
  • Material :Tungsten carbide
  • Blade Hardness:HRA90-92
  • Delivery:Fast by Express ,Airfreight etc
Get Instant Quote +86 181 6803 9980

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

  • Fully Custom
  • Expedited Production Processing

Three-hole razor blades for polyfilms are precision slitting tools engineered for bag-making machines, label stock converters, and battery separator film lines. Manufactured from micro-grain tungsten carbide with a hardness rating of HRA 90–92, these blades deliver consistent cut quality on low-density PE, BOPP, metallized films, and coextruded laminates. The triple-hole mounting pattern ensures secure, repeatable alignment on OEM knife holders, reducing setup time and edge deflection. Standard dimensions range from 43 mm to 80 mm outer diameter with thicknesses from 0.10 mm to 0.50 mm. Custom geometries are produced to drawing or sample specification.

Take a Closer Look

  • Flexible Packaging
  • Label and Tape Converting
  • Battery Separator Film
  • Aluminium Foil and Laminates
  • Flexible Packaging

    Slitting LDPE, LLDPE, and coextruded films on bag-making machines and pouch-packaging lines. The triple-edge geometry maintains cut quality through adhesive and printed layers.

  • Label and Tape Converting

    Precision slitting of label stock, release liners, and metallized films. Tungsten carbide edges resist adhesive build-up and maintain sharpness through abrasive coatings.

  • Battery Separator Film

    Ultra-thin film slitting for lithium-ion battery separators. Blades are available in 0.10–0.15 mm thicknesses to minimise kerf and maximise material yield.

  • Aluminium Foil and Laminates

    Cutting aluminium foil and foil-laminated films where edge chipping must be eliminated. HRA 92 hardness provides the wear resistance needed for abrasive metal layers.

Application of The 3 hole razor blades 

Stretch Film;
Poly carbonates;
Label Stock;
Aluminum Foil;
Metallized Film;
Low density PE;
Laminates;
LLDPE;Polyfilms
Coextruded Film

Triple-hole razor blades for polymer film cutting

Advantags of Three Hole Razor Blades for Polyfilms

1.The blade is made of high quality tungsten carbide. They are very sharp and easy to cut most materials

2.It is very sharp and easy to cut almost any surface due to triple cutting edge technology.

3.The blade is heat-treated with HRA 90, with high strength and provide a longer service life.

4.Save much down time when cutting for its long life service

5.we have stable stock available for standard items,welcome to order

Durable razor blades designed for thin film slicing

Technical Parameters

Common sizes:
43x22x0.1mm
43x22x0.15mm
43x22x0.2mm
43x22x0.3mm
43x22x0.4mm
43x22x0.5mm
60x22x0.2mm
60x22x0.3mm
60x22x0.4mm
80x22x0.2mm

Technical Specifications

Dimensions OD: 43 mm, 60 mm, 80 mm (standard); ID: 22 mm; Thickness: 0.10, 0.15, 0.20, 0.30, 0.40, 0.50 mm. Custom OD up to 120 mm available.
Materials Tungsten carbide (WC-Co), micro-grain grade
Hardness HRA 90–92
Tolerances OD/ID: ±0.05 mm; Thickness: ±0.005 mm; Hole position: ±0.05 mm
Surface Finish Edge Ra ≤ 0.2 µm; body Ra ≤ 0.4 µm
Customisation Buyers can specify OD, ID, thickness, hole count and pattern, edge angle, and coating (if required). Submit a drawing or OEM part number for quotation.

Why Choose Yishi

YISHI Machinery grinds three-hole razor blades on CNC tool-and-cutter grinders with in-process optical inspection, ensuring batch-to-batch edge consistency within 2 µm. We stock standard sizes in tungsten carbide for 48-hour dispatch and offer fully custom configurations with 10–15 working day lead times. Every blade lot is supplied with a material certificate and hardness test report. Our technical team provides direct engineering support to match blade geometry to your specific film type, line speed, and knife holder model.

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Frequently Asked Questions

  • What tungsten carbide grade is used for these blades?

    We use a sub-micron grain tungsten carbide grade with cobalt binder, optimised for film slitting. The grade provides HRA 90–92 hardness with sufficient transverse rupture strength to prevent edge chipping on thin cross-sections. Full material data sheets are available on request.

  • Can you match the hole pattern of my existing knife holder?

    Yes. Provide a drawing, sample blade, or the OEM holder model number. We reverse-engineer the hole pattern, centre bore, and PCD to within ±0.05 mm of your specification. Common patterns include three-hole on a 22 mm PCD.

  • What is the minimum order quantity for custom sizes?

    For custom dimensions, the typical minimum order is 100 pieces. Smaller trial quantities may be accommodated with a tooling surcharge. Contact our engineering team with your specifications for a detailed quotation.

  • How should these blades be stored to maximise shelf life?

    Store blades in their original VCI (volatile corrosion inhibitor) packaging in a dry environment below 60% relative humidity. Avoid stacking blades directly on each other; use interleaving paper or plastic separators to prevent edge contact damage.

  • What is the typical service life compared to steel blades?

    Tungsten carbide three-hole blades typically achieve 5–10× the service life of D2 or HSS blades in polyfilm slitting applications, depending on film abrasiveness and line speed. This reduces blade changeover frequency and downtime on high-volume converting lines.

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