Paper Circular Blade
Paper Circular Blades & Slitter Knives
At SHJ KNIFE, we supply circular slitter blades and replacement circular knives for paper converting, printing and packaging. Our range includes top slitter blades, bottom knives, matched blade sets, rotary cutters, scoring blades and perforating blades.
Whether you're replacing worn blades, sourcing knives for a production line or looking for a regular supplier, we're here to help. We can review blade dimensions, materials and cutting requirements to identify suitable options.
Need a custom circular blade? Send us your drawing, sample or existing blade specifications. We'll be pleased to discuss your requirements.
Need Replacement Slitter Blades?
Tell us about your existing knives. We'll help you check the specifications before preparing a quotation.
- Outside and inside diameter
- Thickness and cutting-edge profile
- Drawing or reference photos
- Cutting material and quantity
Find the Right Circular Blade
Not all circular knives are designed for the same job. Explore our main slitter blade types and choose the products that match your machine and cutting process.
Top Slitter Blades
Replacement upper knives for suitable shear slitting systems. We can review blade size, edge profile and matching bottom knife requirements.
Bottom Slitter Knives
Lower knives for compatible slitting arrangements. Share your bottom knife dimensions and existing upper blade details for review.
Top & Bottom Blade Sets
Replacing both knives? We can review complete slitter blade sets, including the dimensions and pairing requirements of each knife.
Rotary Cutter Knives
Circular cutting knives for selected rotary cutting equipment. We can review knife dimensions and edge geometry for your application.
Scoring Blades
Specialized blade profiles for selected corrugated paper and board processing applications. The profile depends on the operation.
Perforating Blades
Toothed circular blades for perforation and easy-tear lines. Tooth spacing and blade design depend on the required pattern.
Circular Blade Applications
Circular blades are used in several paper converting and packaging processes. Different materials may require different cutting methods, blade materials and edge profiles. We can help you review the requirements for your application.
For specialized tissue processing blades, visit our Tissue Converting Knife Range .
Featured Circular Slitter Blades
Explore some of our circular slitter knife products. If you need a different blade size, material or edge profile, send us your drawing for review.
Rotary Cutter, Scoring & Perforating Blades
In addition to conventional slitter knives, we offer specialized circular blade designs for selected cutting, scoring and perforating operations. Each blade needs to be selected for its intended equipment and material.
Need another blade design for corrugated board? Explore our Circular Blades for Corrugated Boxes .
Replacement Circular Blades: What to Check
Replacing an existing circular slitter knife starts with the correct blade specifications. Two knives may look similar but have different mounting details, edge profiles or working arrangements.
To help us review your request, please provide the following information where available:
- Blade dimensions: outside diameter, bore diameter and thickness.
- Knife type: top, bottom, matched set or another rotary blade.
- Edge design: bevel, groove, tooth profile or drawing.
- Application: cutting material, machine model and cutting method.
- Order details: required quantity and delivery country.
If you're replacing a top and bottom slitter blade set, send us the specifications for both knives. We'll help you check their matching requirements before quoting.
Send Your Blade Specifications
Browse Our Circular Slitter Blades
Explore our available circular slitter blades and replacement knives below. If you don't see the size or design you need, send us your drawing or sample details. We'll be pleased to review your request.
Material Options for Circular Slitter Blades
The right blade material depends on your cutting application, machine setup and sharpening requirements. At SHJ KNIFE, we can help you compare material options for circular slitter blades based on your existing knife and the material you process.
High-Speed Steel (HSS)
HSS slitter blades can be considered where toughness, edge retention and sharpening requirements need to be balanced. The appropriate grade depends on the knife design and cutting application.
Tungsten Carbide
Tungsten carbide blades offer high hardness and wear resistance. Their suitability depends on cutting conditions, edge geometry and handling requirements, including the risk of edge chipping.
Carbide-Tipped Designs
Carbide-tipped knives combine a supporting blade body with a carbide cutting edge. We can review these constructions for suitable applications, subject to the required blade design and specifications.
Not sure which material to choose? Tell us what you're cutting and which blade you're using now. We'll help you review the available options.
Custom Circular Blades & Replacement Supply
Need custom circular slitter blades or replacement knives made to your specifications? We'd be pleased to help. We can review drawings, samples and existing blade measurements before discussing manufacturing and order options.
Have a drawing or blade specification ready? Send us your requirements and we'll be pleased to review them.
Common Questions About Slitter Blades
Have questions about choosing or replacing slitter blades? These guides address common issues, from matching top and bottom knives to choosing materials and troubleshooting cutting problems.
How Do I Know if My Top and Bottom Slitter Knives Match?
Replacing a knife set? Learn what to check when matching upper and lower slitter blades before ordering replacements.
Should I Choose D2, HSS or Carbide for My Bottom Slitter Knife?
Not sure which blade material to use? Explore the differences between D2, HSS and carbide and the factors to consider for your application.
Why Are My Slitter Blades Leaving Paper Dust or Burrs?
Seeing dusty edges, burrs or uneven cuts? Review common blade and machine setup factors that may contribute to poor slitting quality.
How Do I Install and Adjust Slitter Blades Correctly?
Preparing to install replacement knives? Read about important slitter blade setup and adjustment considerations. Always follow your machine manufacturer's operating procedures.
Frequently Asked Questions
How do I choose a replacement circular slitter blade?
Start with the blade type, outside diameter, bore diameter and thickness. A drawing or photo can help us check the edge and mounting details.
Can I order top and bottom knives together?
Yes, we can review requests for top and bottom slitter blade sets. Please send the dimensions and profiles of both knives so we can check their matching requirements.
Can you manufacture custom circular blades?
We welcome custom blade enquiries. Send us your drawing or sample details, and we'll review the design, material and manufacturing requirements before quoting.
Are circular blades interchangeable across materials?
Not always. Paper, paperboard, film and tissue applications may require different cutting methods, materials and edge profiles. We'll review the intended application before discussing blade options.
Request a Quote for Circular Slitter Blades
Looking for a dependable circular slitter blade supplier? We'd be pleased to discuss your requirements.
Whether you need replacement top slitter blades, bottom slitter knives, matched sets or custom circular blades, send us your specifications and we'll review the available options.
Don't have a complete drawing? Send us the information you have. We'll let you know what else is needed.
Send Us Your Blade Details
- Blade type: top, bottom or set
- Outside diameter and bore diameter
- Thickness, edge profile or drawing
- Cutting material and machine model
- Quantity and delivery country
We're one of the most professional paper circular blade manufacturers and suppliers, offering grinding products for sharpening knife. Please feel free to buy paper circular blade and replacement parts at reasonable price from our factory.
cutting paper knife, industrial slitter blades, Paper circular blade