Double-Bevel Flat Slitter Knives are precision cutting tools designed for slitting machines, rewinders, pneumatic knife holders, and other slitting systems. Their double-bevel edge geometry provides sharp, stable, and consistent cutting performance for high-speed slitting.
They are suitable for paper, paperboard, plastic films, aluminum foil, laminates, flexible packaging, nonwoven materials, and adhesive materials. A mirror-polished surface finish can help reduce material and adhesive buildup, surface friction, and dust during demanding slitting operations.
As a custom slitter knife manufacturer, WINGCHONG KNIFE can produce double-bevel flat knives in customized diameters, thicknesses, bevel angles, materials, edge geometries, and surface finishes according to your machine configuration and application requirements.
Double-bevel edge for stable and precise high-speed slitting
Flat knife design suitable for various slitting systems and knife holders
Mirror-polished finish available for adhesive and demanding materials
Reduced material and adhesive buildup during slitting
Consistent cutting performance for continuous production
Customized dimensions, materials, bevel angles, and edge geometries
Suitable for pneumatic and mechanical knife holder systems
Double-Bevel Flat Slitter Knives are suitable for a wide range of web materials, including:
Paper and paperboard
Plastic films
Aluminum foil
Flexible packaging
Laminates and composite materials
Adhesive tapes and labels
Nonwoven materials
Textile materials
Other specialty web materials
Different slitting machines and materials require different knife specifications. WINGCHONG KNIFE manufactures custom double-bevel flat slitter knives according to your technical requirements.
Customization options include:
| Outer Diameter | Inner Diameter | Thickness |
| 90 | 60 | 1,2 |
| 105 | 65 / 70 / 75 | 1,2 / 1,5 / 2 |
| 150 | 80 / 120 | 1.5 / 2.5 |
| 180 | 70 | 3/5 |
| 190 | 75 | 1.5 / 2 / 3 |
| 200 | 65 / 70 / 80 / 90 | 2 / 2.5 / 3 / 5 |
| 220 | 80 / 90 / 120 / 180 | 3/5 |
| Material: 1.2379、1.3343、1.5%Cr、chrome alloyed (1.5% Cr)、high chrome alloyed tool steels (12% Cr) and powder high speed steels | ||
● Knife diameter and thickness
● Bore and mounting dimensions
● Bevel angle and edge geometry
● Knife material and hardness
● Precision grinding or mirror polishing
● Surface treatment and coating
● Dimensional and geometric tolerances
Drawings, samples, and machine specifications can be used as references for custom production.

These flat slitter knives can be supplied for use with pneumatic knife holders, mechanical knife holders, slitting machines, and slitter rewinders.
We can manufacture knives according to your existing holder dimensions, mounting requirements, and machine configuration to help ensure proper installation and cutting performance.

Double-Bevel Flat Slitter Knives are commonly used for:
● Flexible packaging converting
● Paper and paperboard converting
● Film and foil slitting
● Label and adhesive material processing
● Nonwoven and textile converting
● Laminate slitting
● Rewinding and web processing
● High-speed industrial slitting
Custom Manufacturer — Knives manufactured according to your drawings, samples, or specifications.
Precision Grinding — Controlled edge geometry for consistent cutting performance.
Multiple Materials — Steel, powder metallurgy steel, carbide, and other knife materials available.
Surface Finishing — Precision-ground and mirror-polished finishes for different applications.
Application Support — Knife specifications can be matched to your material and slitting system.
B2B Custom Production — Suitable for OEM, replacement, and customized industrial slitting requirements.
Abrasive Cutting Knives are industrial cutting tools specifically designed for cutting abrasive rolls such as sandpaper and abrasive cloth.
Dished knives are circular cutting tools used for shear-type slitting. Unlike completely flat “flat knives,” their blades feature a concave geometric shape (resembling a plate or dish), a design that enables them to generate specific lateral cutting forces during rotational shearing.
Adhesive materials: Self-adhesive labels, adhesive tape, various composite films (die-cutting can create a temporary seal along the cut edges).
Elastic/soft materials: Rubber, non-woven fabric (NWF), textiles, tissue paper.
Abrasive/hard materials: Materials such as sandpaper that can quickly wear down standard sharp blades.