Key features
- Ultrasonic horn-matching blades and cold-cut knives
- 440C stainless: no rust in humid, wash-down mask rooms
- Edge held against abrasive PP / PET / nylon fibre
- Wave, straight and serrated edges for sealing and cutting
- Small batch friendly — non-woven lines change products often
Specifications
| Material | 440C, SKD-11, HSS M2, Cr12MoV |
| Hardness | HRC 54–58 (stainless); HRC 58–62 (tool steel) |
| Length | 30 – 800 mm |
| Thickness | 0.5 – 10 mm |
| Edge | Straight, wave, serrated, ultrasonic weld edge |
| Surface | Polished; anti-stick coating option |
| Tolerance | Length ±0.05 mm; edge straightness ≤ 0.02 mm |
| MOQ | 5 pcs |
Applications
Mask production lines
Ear-loop welding, folding and edge trimming blades.
Diaper & sanitary lines
Leg-cuff cutting and core shaping blades.
Non-woven converting
Roll slitting and sheet cutting.
Ultrasonic cutting stations
Horn-matched blades for sealed edges.
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.
Mask machine bladesMelt-blown fabric slitting knivesNonwoven slitting circular knivesStrip-cutting round knivesUltrasonic welding tooth rollsWelding die assembliesMask machine fixing barsProtective-suit slitting 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 guideHSS M2 / M42
HRC 62–66 · Very high
M42 (cobalt) for heat resistance at very high line speeds.
Read the full grade guide440C Stainless
HRC 54–58 · Medium-high
Rust-free. Required wherever blades see water and cleaning.
Read the full grade guideFrequently asked questions
An ultrasonic blade vibrates at 20–40 kHz and welds the edge as it cuts, giving a sealed, fray-free finish — used where the edge must not unravel. A cold-cut blade simply shears the material and is used where a welded edge is not required. They are not interchangeable: send us the machine type and we will confirm which you need.
Synthetic fibre — especially PP and glass-filled material — is abrasive. A blade cutting meltblown at line speed dulls faster than one cutting paper. Two things help: a harder substrate (SKD-11 at HRC 60–62 rather than 420 stainless) and a correct edge angle. Too sharp an angle rolls over immediately; too blunt an angle drags the fibre rather than cutting it.
Yes. Send a photo of the blade with its dimensions, or one used blade. These blades are small and the geometry varies between machine builders, so we always confirm the drawing before production.
Yes, 5 pieces. Non-woven lines change products frequently, so we deliberately keep the minimum low and repeat orders fast for an established profile.