Thin circular knife
Thin circular knives are available with plain bores, multi-hole patterns and shaped mounting openings for different corrugator systems.
Corrugator Slitter Knives
Tungsten Carbide Corrugator Slitter Knives
Thin circular knives for corrugated board slitting, edge trimming and carton-converting equipment.
This range includes machine-specific circular knives with different bores, hole patterns and thicknesses. Confirm the machine model, outside diameter, bore, mounting pattern and thickness before ordering.
Corrugated BoardMachine-Fit ReviewDrawing or Sample Matching
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What this product is
A corrugator slitter knife is a circular cutting component matched to the machine's shaft, holder and cutting position. The mounting geometry is as important as the diameter.
Corrugated board slitting
The primary page scope is corrugated board and carton converting, including longitudinal slitting and edge trimming duties.
Not one universal standard
A size that fits one machine may not fit another. Bore, bolt circle, hole count, thickness, edge position and clearance must be checked together.
Core parameters and reference configurations
The following configurations show machine-specific starting points. They are not a universal corrugator specification.
How to read the size format
The reference format is outside diameter × bore diameter × thickness in millimetres. Confirm the format against the old knife, holder or machine drawing before production.
| Item | Common size OD × ID × T (mm) | Holes / mounting | Machine reference |
|---|---|---|---|
| 01 | 230 × 110 × 1.1 | 6 holes × Ø9 | FOSBER |
| 02 | 230 × 135 × 1.1 | 4 key slots | FOSBER |
| 03 | 220 × 115 × 1.0 | 3 holes × Ø9 | AGNATI |
| 04 | 240 × 32 × 1.2 | 2 holes × Ø8.5 | BHS |
| 05 | 240 × 115 × 1.0 | 3 holes × Ø9 | AGNATI |
| 06 | 250 × 150 × 0.8 | No holes | PETERS |
| 07 | 257 × 135 × 1.1 | No holes | FOSBER |
| 08 | 260 × 112 × 1.5 | 6 holes × Ø11 | ORANDA |
| 09 | 260 × 140 × 1.5 | No holes | ISOWA |
| 10 | 260 × 168.3 × 1.2 | 8 holes × Ø10.5 | MARQUIP |
| 11 | 270 × 168.3 × 1.5 | 8 holes × Ø10.5 | HSIEH |
| 12 | 270 × 140 × 1.3 | 6 holes × Ø11 | VATANMAKEINA |
| 13 | 270 × 170 × 1.3 | 8 holes × Ø10.5 | Machine reference to confirm |
| 14 | 280 × 160 × 1.0 | 6 holes × Ø7.5 | MITSUBISHI |
| 15 | 280 × 202 × 1.4 | 6 holes × Ø8 | MITSUBISHI |
| 16 | 291 × 203 × 1.1 | 6 holes × Ø8.5 | FOSBER |
| 17 | 300 × 112 × 1.2 | 6 holes × Ø11 | TCY |
These common configurations are reference starting points shown in the supplied detail sheet. A different thickness, hole pattern or mounting form is a different reference; confirm the old knife, holder or machine drawing before ordering.
Applications and cutting duty
The product is primarily intended for corrugator and carton-converting work. Other web materials may require a separate cutting-duty review.
Corrugated board
Slitting and edge trimming for corrugated sheets and carton production lines where a clean, stable cut is required.
Paperboard and carton work
Paper, board and packaging converting duties may use similar circular forms, but the mounting system still needs to be checked.
Other web materials
Film, adhesive tape, foil and related web materials may require a separate review of material behavior, line speed and edge requirements.
Material and edge details to confirm
Material and edge design should be selected for the actual knife, machine setup and cutting duty.
Match the grade to the knife
Tungsten steel and selected steel grades can be specified for different knife designs. Confirm the final grade and construction for the approved machine reference.
Confirm the agreed grade
Grade options include 9CrSi, Cr12MoV, W6Mo5Cr4V2 and W18Cr4V. These materials are not interchangeable; the final choice depends on the knife and cutting duty.
Confirm the cutting detail
Confirm edge position, bevel or relief, finish, thickness and cutting direction against the approved drawing or sample.
How a machine-fit order is reviewed
Send the information available. We can begin with a clear photo and complete the match after the critical dimensions are confirmed.
Identify the line
Share the corrugator, slitter or converting-machine brand and model, if known.
Send the old knife
Provide both faces, the side profile, mounting area and any marking on the old knife.
Confirm the fit
Check OD, ID, thickness, hole count, pitch circle, key/slot and cutting orientation.
Approve the reference
Confirm material, quantity and the final drawing or sample before production.
Corrugator slitter knife FAQ
Short answers to the fit questions that usually affect a replacement order.
Are all of these knives tungsten carbide?
Material depends on the selected knife and machine reference. Some examples use tungsten steel, while other steel grades may also be available. Confirm the final grade before production.
What does 240 × 32 × 1.2 mean?
The size format is outside diameter × bore diameter × thickness in millimetres. Confirm the dimensions with the old knife or machine drawing before production.
Can I order by machine brand only?
Machine brand helps identify a starting point, but it is not enough by itself. Different generations and holders can use different bores, hole patterns and thicknesses.
Do these reference configurations fit all corrugators?
No. They represent different machine references and should be used to start a fit review, not as an interchangeable catalogue. Confirm the complete size, hole pattern, mounting form and cutting position before production.
What should I send for a custom knife?
Send the machine model, both faces of the old knife, a side photo, OD, bore, thickness, hole or key details, material being cut and required quantity. A drawing or sample is preferred.
GET IN TOUCH
Need a matched corrugator knife?
Please prepare the information you already have. The inquiry form is on our Connect Us page.
Helpful information to send
- Machine model or product type
- Key dimensions or mounting details
- Material or application and quantity
- Photo, drawing or old-part image if available