Key features
- Knife sets ground as matched sets for your shim stack
- Outer diameters φ80 – φ1200 mm, thickness 0.5 – 40 mm
- Cr12MoV / SKD-11 / HSS grades, hardness HRC 58–64
- Burr-free edges on strip from 0.05 mm foil to 12 mm plate
- Resharpening service — send worn sets, we restore concentricity
Specifications
| Material | Cr12MoV, SKD-11 (D2), HSS M2, carbide inlay option |
| Hardness | HRC 58–64 |
| Outer diameter | φ80 – φ1200 mm |
| Inner bore | φ25 – φ400 mm, H7 tolerance |
| Thickness | 0.5 – 40 mm |
| Concentricity | ≤ 0.01 mm |
| Flatness | ≤ 0.005 mm |
| Edge | Single bevel, double bevel or flat; ground in matched sets |
| MOQ | 1 set |
Applications
Steel strip service centers
Slitting lines for hot-rolled and cold-rolled strip.
Stainless & aluminium strip
Precision slitting with clean, burr-free edges.
Copper & brass strip
Electrical and connector strip slitting.
Thin foil & electrode
Light-gauge foil and battery electrode 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.
Slitting line circular knivesRotary shear bladesKnife spacers & shim setsCut-to-length bladesHot shearing bladesBillet shearing knivesStrip slitting knife sets
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 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
Three factors decide the burr: knife sharpness, the horizontal and vertical clearance between upper and lower knives, and knife run-out. We grind matched sets so the whole set runs true in your stack — you set the clearances once per thickness and the edges stay clean.
Yes. Give us OD, ID, thickness and edge angle of one knife (or send a sample), and we confirm the drawing with you before production. Mixed sets — a few new knives blended with your used ones — are routine work for us.
It depends on the material and the coating. Cr12MoV on mild steel strip typically runs several hours between regrinds; HSS and carbide-inlaid knives last far longer on stainless and abrasive strip. Send us your strip specification and line speed and we will recommend a grade.