Key features
- Lengths up to 4,500 mm, single-piece — no joint, no weak point
- Straightness within 0.1 mm per metre over the full length
- Parallel edges: two usable cutting edges per knife
- HSS and carbide-tipped versions for abrasive coated board
- Matched sets for three-knife trimmers
Specifications
| Material | Cr12MoV, SKD-11 (D2), 9CrSi, HSS M2, HSS with carbide tip |
| Hardness | HRC 56–62 (body); HRC 64–66 (carbide tip) |
| Length | Up to 4,500 mm single piece |
| Width | 40 – 200 mm |
| Thickness | 6 – 25 mm |
| Straightness | ≤ 0.1 mm / m |
| Edge angle | 17° – 24° (paper); 30° – 45° (board) |
| Surface | Ground and polished; optional Teflon coating for sticky stock |
| Heat treatment | Vacuum quench + double temper |
| MOQ | 1 pc (sample) / 5 pcs (batch) |
Applications
Sheet-fed guillotines
Single-sheet paper cutters of all makes.
Metal sheet shearing
Guillotine and swing-beam shears for plate, sheet and scrap.
Three-knife trimmers
Bookbinding and print finishing lines.
Tissue & towel converting
Log saw and perforation knives.
Corrugated board
Sheeter and cut-off knives for corrugated lines.
Blade types we make in this line
A partial list — if you do not see your blade, send us the drawing or a photo and we will confirm.
Guillotine paper knivesThree-knife trimmer bladesShearing machine bladesCrocodile shear bladesCombined punch & shear bladesRebar cutting bladesScrap steel shear bladesInlaid-steel crosscut knivesHSS long straight knivesCoated long knives
Materials used for this blade
Cr12MoV
HRC 58–62 · High
Widely used, well understood grade. Good balance of cost and life.
Read the full grade guideSKD-11 (D2)
HRC 60–64 · Very high
Longer life than Cr12MoV at higher cost. The default upgrade.
Read the full grade guide9CrSi
HRC 56–60 · Medium-high
Economical and forgiving. Common for large straight knives.
Read the full grade guideHSS M2 / M42
HRC 62–66 · Very high
M42 (cobalt) for heat resistance at very high line speeds.
Read the full grade guideFrequently asked questions
Yes — we produce single-piece knives up to 4,500 mm. Long knives are the reason straightness matters: a knife that bends will leave a step in the cut. We verify straightness on a granite surface plate and ship with a dimensional report.
A standard 12.7 mm thick knife in Cr12MoV can normally be resharpened 8–12 times before it reaches minimum width. HSS and carbide-tipped knives take more regrinds and hold their edge longer between services. We can advise the minimum safe width for your holder.
Yes. Send the length, width and thickness of your current knife, or a photo of the blade with a ruler next to it. We follow the original mounting slot pattern and bolt hole positions.
Almost always one of three things: a dull edge, an incorrect clamp pressure, or a knife that has lost its bevel angle through repeated sharpening at the wrong angle. Send us a photo of the edge and we can usually identify which. Our knives ship with the bevel angle marked so your grinding shop can restore it correctly.