Cutting and sealing blades for mask machines, diaper lines, non-woven converting and ultrasonic cutting stations. Hardened stainless and tool steel grades that hold an edge against abrasive synthetic fibre without rusting in a wash-down room.
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.
Blades and welding rolls for mask machines, hygiene production lines and non-woven converting equipment. Ultrasonic welding tooth rolls are made to the pattern drawing; the tooth height and pitch decide the bond strength, so we do not change them without your approval.
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.
Yes, to your pattern drawing. Send the drawing with tooth height, pitch and pattern; we quote the roll and the matching blade together because they have to run as a pair.
Check the gap between horn and roll first, then the pattern alignment. A new roll that is a few hundredths different in diameter changes the gap, and the weld drops off before anything else does.
Not sure which blade fits?
Send a photo of the blade you use now with a ruler next to it. We will tell you the grade and the edge angle.