Special Dished Knives

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Special Dished Knives

Special Dished Knives are custom-engineered slitter knives designed for slitter rewinders, web slitting machines, inspection equipment, and other converting systems. They are developed for applications that require specialized cutting-edge geometries beyond standard single-bevel, double-bevel, or hollow-bevel knife designs.
These special dished slitter knives can be used for precision slitting of paper, paperboard, plastic films, aluminum foil, labels, adhesive tapes, flexible laminates, nonwoven materials, and other web substrates.
For demanding applications, customized serrated edges, tooth profiles, cutting geometries, and edge configurations can be manufactured according to the material and cutting process. The specialized edge design can help improve cutting stability, control material deformation, and reduce material buildup during continuous slitting.
Different surface treatments are also available depending on the application. Precision grinding, mirror polishing, and functional surface coatings can be applied to achieve the required dimensional accuracy, surface finish, wear resistance, or anti-adhesion performance.
As a custom slitter knife manufacturer, WINGCHONG KNIFE can manufacture special dished knives according to your technical drawing, existing knife sample, machine model, or dimensional requirements.

Key Features

  • Custom Cutting Profiles
    Special cutting-edge profiles can be manufactured for applications where standard slitter knife geometries cannot provide the required cutting performance.

  • Serrated & Tooth Geometries
    Customized serrated edges and tooth profiles are available for specific materials and cutting conditions, helping improve material engagement and cutting stability.

  • Precision Grinding
    Precision grinding provides accurate knife dimensions and consistent edge geometry for reliable slitting performance.

  • Mirror-Polished Finish
    A mirror-polished surface can help reduce surface roughness and minimize adhesive or material residue buildup on the knife.

  • Functional Surface Coatings
    Optional surface coatings can be applied where enhanced wear resistance, anti-adhesion properties, or extended service life are required.

  • Custom Knife Materials
    Special dished knives can be manufactured from D2 tool steel, M2 high-speed steel, powder metallurgy steel, tungsten carbide, and other application-appropriate materials.

Materials We Can Slit

Special dished slitter knives can be manufactured for a wide range of web materials, including:

  • Paper

  • Paperboard

  • Plastic films

  • Aluminum foil

  • Labels

  • Adhesive tapes

  • Flexible laminates

  • Adhesive laminates

  • Nonwoven fabrics

  • Insulation

  • Other specialty web materials

 

The knife geometry and material should be selected according to the substrate, thickness, hardness, adhesive characteristics, slitting speed, and machine configuration.

Custom Special Dished Knife Manufacturing

Special slitting applications often require knife geometries that cannot be achieved with standard products. We provide custom slitter knife manufacturing based on your actual machine and application requirements.

Customization options include:

 

Outer Diameter Inner Diameter Thickness
62 40 0.6 / 0.8 / 1.2
65 40 0.6 / 0.8 / 1.2
75 45 / 50 / 60 0.6 / 0.8 / 1 / 1.2
90 45 / 50 / 60 0.6 / 0.8 / 1 / 1.2
100 65 / 70 / 75 0.8 / 1 / 1.2
105 65 / 70 / 75 0.8 / 1 / 1.2
130 80/100 1.5
140 70 / 95 1.5 / 2 / 3
150 80 1.5 / 2 / 2.5
170 90 / 120  2/3
180 90 / 120 2 / 3.5
200 80 / 120 3.5/4
Material:
1.2379、1.3343、chrome-alloyed (1.5 % Cr), high-chrome-alloyed tool steels (12 % Cr) and powder-metallurgical high-speed steels

 

You can provide a technical drawing, existing knife sample, machine model, or dimensional specifications. Our technical team can evaluate the application and recommend an appropriate knife geometry and material.

Knife Materials & Surface Treatments

The choice of knife material and surface treatment depends on the cutting material, operating conditions, required edge life, and production environment.

 

  • D2 Tool Steel

    D2 provides good wear resistance and dimensional stability and is suitable for a wide range of general industrial slitting applications.

  • M2 High-Speed Steel

    M2 high-speed steel offers a combination of hardness, toughness, and wear resistance for demanding cutting applications.

  • Powder Metallurgy Steel

    Powder steel can provide enhanced wear resistance and edge retention for applications requiring longer knife service life.

  • Tungsten Carbide

    Tungsten carbide provides high hardness and excellent wear resistance for abrasive materials and demanding continuous slitting applications.

  • Surface Finishes & Coatings

    Depending on the application, knives can be supplied with:

    ● Precision grinding

    ● Mirror polishing

    ● Functional surface coatings

    ● Other application-specific surface treatments

 

The final material and surface treatment should be selected according to the actual slitting conditions.

Slitting System Compatibility

Dished Knives

Special dished knives can be manufactured for different slitting systems used with mechanical or pneumatic knife holders.

Because special knives often involve non-standard edge profiles or mounting dimensions, compatibility should be confirmed according to the actual machine configuration.

 

We can manufacture related slitting components, including:

● Special dished knives

● Bottom knives

● Mechanical knife holders

● Pneumatic knife holders

● Custom knife mounting components

● Matched upper and bottom knife assemblies

Providing the machine model, existing knife sample, or technical drawing helps ensure dimensional compatibility.

Applications

Dished Knives

Special dished knives are commonly used in:

 

● Paper converting

● Flexible packaging

● Film slitting

● Aluminum foil converting

● Label converting

● Adhesive tape production

● Lamination

● Nonwoven processing

● Specialty material slitting

● Inspection and rewinding

● Web converting

● Custom slitting applications

 

They are particularly suitable for applications requiring special cutting profiles, serrated edges, customized tooth geometries, or enhanced wear and anti-adhesion performance.

Why Choose WINGCHONG KNIFE?

  • 01

    Custom Manufacturer: Manufactured according to drawings, samples, or specific machine requirements.

  • 02

    Special Edge Profiles: Serrated, toothed, and other non-standard cutting profiles can be manufactured for specialized slitting applications.

  • 03

    Precision Manufacturing: Controlled edge geometry and dimensional tolerances support accurate and consistent web slitting.

  • 04

    Flexible Material Options: D2, M2, powder metallurgy steel, tungsten carbide, and other knife materials are available.

  • 05

    Custom Surface Treatments: Mirror polishing and functional surface coatings can be selected according to material and cutting conditions.

  • 06

    Application-Specific Solutions: Custom diameters, bores, thicknesses, edge geometries, and tolerances are available for different slitting systems.

WHY US

Industry-Leading Innovation Capabilities
One-Stop, Direct-Source Supply
Deep-Rooted Professional Expertise
Meticulous Quality Control
Efficient and Controllable Economic Benefits
Flexible and Diverse Customization Services
Broad and Deep Industry Insights
Unwavering Customer Trust