Customized sizes are available, according to your drawing or sample.
Rounded 3-hole blades are precision circular slitting knives engineered for high-speed film, foil, and flexible packaging converting lines. These blades feature a three-hole mounting configuration for secure fitment on standard knife holders from major OEM slitter manufacturers. Manufactured from vacuum heat-treated tool steels or solid tungsten carbide, they deliver consistent cut quality and extended service life in continuous production environments. Typical hardness ranges from HRC 58–62 for D2/M2 grades to HRA 89–92 for carbide, with thickness tolerances held to ±0.001 mm and surface finishes below Ra 0.2 µm. Ideal for slitting BOPP, PET, LDPE, metallized films, and aluminum foil, these blades reduce downtime and material waste in demanding 24/7 operations.
Double-disc ground cutting edges achieve a surface finish of Ra 0.2 µm or better, ensuring burr-free cuts, reduced friction, and minimal film dust generation.
Available in D2 (Cr12MoV) for general-purpose film, M2 high-speed steel for heat-resistant applications, and tungsten carbide (K10/K20) for abrasive metallized films and foils.
Standard PCD and hole diameters match common knife holders; custom hole patterns, countersinks, and PCDs can be manufactured to your drawing or sample.
Tool steel blades undergo vacuum heat treatment to achieve uniform HRC 60–62 hardness with minimal distortion, enhancing edge retention and impact toughness.
Tungsten carbide grades typically outlast D2 steel by 3–6 times in high-volume metallized film slitting, significantly reducing blade changeover frequency and production interruptions.
Outer diameters from 60 mm to 300 mm, inner diameters from 20 mm to 100 mm, and thicknesses from 0.5 mm to 5 mm. Non-standard sizes produced to order with no minimum quantity.
Enhanced Durability & Longevity: Up to 600% more durable than conventional steel blades, offering superior wear resistance.
Increased Productivity: Fewer blade replacements lead to less downtime and more consistent operations.
Precise, Clean Cuts: Reduced friction ensures smoother and more accurate cutting results.
Reduced Waste: Minimizes start-up and end-of-line waste, improving material efficiency.
Optimized Cutting Performance: Ideal for high-speed, high-heat cutting environments, providing reliable performance under demanding conditions.
Global Reach: Our blades are trusted and exported to over 50 countries worldwide.
|
Lldpe |
Hdpe |
Ldpe |
Polyimide |
|
PP |
OPP |
BOPP |
Metalized |
|
PET |
OPET |
Metallocenes |
Strech Film |
|
Lonomers |
PVC |
Polycarbonates |
Coextruded Film |
|
Adhesive & Coated Film |
Rubber |
Foil |
Mat |
| Dimensions | OD 60–300 mm, ID 20–100 mm, thickness 0.5–5 mm; other sizes on request |
| Materials | D2 (Cr12MoV), M2, SKD11, tungsten carbide (K10/K20), HSS |
| Hardness | HRC 58–62 (tool steels); HRA 89–92 (carbide) |
| Tolerances | Thickness ±0.001 mm, ID/OD ±0.005 mm, parallelism ≤0.002 mm |
| Surface Finish | Ra 0.1–0.2 µm; mirror finish available for adhesive applications |
| Customisation | Custom OD, ID, thickness, hole pattern, PCD, countersink angle, edge geometry (single/double bevel), and material grade based on drawing or sample |
YISHI Machinery operates an in-house vacuum heat treatment facility and precision grinding shop, enabling tight control over hardness uniformity and dimensional accuracy. Every blade is inspected for runout, parallelism, and surface finish before shipment. We accept custom orders without minimum quantity requirements and deliver within 15–20 working days for standard custom blades. Our engineering team provides material selection guidance based on your specific film type, line speed, and blade life targets. With export experience to over 50 countries, we support OEM and aftermarket requirements with consistent quality and direct factory pricing.
We offer D2 (Cr12MoV) for general film slitting, M2 high-speed steel for elevated temperature applications, and tungsten carbide (K10/K20) for highly abrasive materials like metallized films and aluminum foil. Material selection depends on your specific film type, line speed, and desired blade life.
Yes. Provide a dimensional drawing or a sample blade, and we will reverse-engineer the exact OD, ID, thickness, hole diameter, PCD, and countersink specifications. We can also work from OEM part numbers if available.
Standard thickness tolerance is ±0.001 mm, with parallelism within 0.002 mm. Tighter tolerances can be achieved on request for ultra-precision slitting applications.
For custom dimensions without special material requirements, lead time is 15–20 working days. Carbide blades may require 20–25 working days. Rush orders can be accommodated depending on current production capacity.
Yes, we can supply sample blades in your specified dimensions and material for on-machine evaluation. Sample charges may apply, which are typically credited against the first production order.
Provide the hole diameter, the pitch circle diameter (PCD), and the angle between holes (typically 120° for three equally spaced holes). A drawing or CAD file is preferred to avoid miscommunication.
