Circular Dished Slitter Knives Knife Blades Knives For Shear Cutting Machinery
Circular dished slitter knives (often called top dish slitter knives, rotary shear blades, or dished knives) are specialized circular blades designed primarily for shear cutting machinery used in various industrial applications.
Key Features and Applications:
· Shape: Dished (slightly concave) for precise web shearing; available in multiple diameters and thicknesses.
· Materials: Typically made from high-carbon tool steel, hardened tool steel, or stainless steel for durability and wear resistance.
· Applications:
o Cutting paper, cardboard, and paperboard
o Converting film, foils, textiles, non-woven materials, rubber, and cable
o Metal slitting, food and packaging industries
· Use in Shear Cutters: Always paired top and bottom; the top "dished" slitter knife works against a bottom anvil knife for a scissor-like cut, ensuring clean and accurate slitting of continuous material webs.
Technical Specifications:
· Diameter and Thickness: Available in standard and custom sizes, e.g., Ø130x100 mm, Ø62mm, Ø75mm, 1.5 mm thick, and tailored to the user's machinery.
· Edge Profile: Options include double bevel, single bevel, square edge; most shear slitting knives have low cutting angles and are toothless for a fine slit.
Customization and Supply:
· Leading manufacturers (e.g., Shenzhen Oyea Machinery Co., Ltd.e) offer both standard and custom blades based on machine specs or user needs
· Customization is possible for metallurgical properties, coatings (for sticky/difficult materials), edge angles, and mounting styles.
Summary Table of Key Characteristics:
|
Feature |
Typical Options |
|
Shape |
Dished, double-bevel, square edge |
|
Diameter |
62–140 mm (custom on request) |
|
Thickness |
~1.0–1.5 mm (varies) |
|
Materials |
High-carbon tool steel, D2, 52100 |
|
Applications |
Paper, film, foil, non-woven, etc. |
|
Edge Types |
Double/single bevel, toothless |
|
Mounting |
Plain bore, keyed, or custom |
Specification:
| Size (mm) | Knife Type | Grade |
| Ø130×Ø100×48 | Bottom | GF30/GM30/GM23 |
| Ø73×Ø35×18 | Bottom | GF30/GM30/GM23 |
| Ø75xØ30×17.5 | Bottom | GF30/GM30/GM23 |
| Ø105xØ90×10 | Bottom | GF30/GM30/GM23 |
| Ø60xØ30×10 | Bottom | GF30/GM30/GM23 |
| Ø180xØ150×50 | Bottom | GF30/GM30/GM23 |
| Ø170.5xØ135×12.5 | Bottom | GF30/GM30/GM23 |
| Ø280xØ240×70 | Bottom | GF30/GM30/GM23 |
| Ø250×Ø188×15 | Bottom | GF30/GM30/GM23 |
| Ø190×Ø138×15 | Bottom | GF30/GM30/GM23 |
| Ø120xØ65×1.2-30° | Top | KS27 |
| Ø100xØ20×1.8-14° | Top | KS27 |
| Ø100xØ20×1.5 | Top | KS27 |
| Ø120×Ø60×1.5 | Top | KS27 |
| Ø120×Ø55×1-32° | Top | KS27 |
| Ø102×Ø22×0.5-6° | Top | KS27 |
| Ø80×Ø20×1.8 | Top | KS27 |
| Ø120×Ø20×1.8 | Top | KS27 |
| Ø150×Ø20×1.8 | Top | KS27 |
| Ø100xØ25.4×1.3 | Top | KS27 |
Shenzhen Oyea Machinery distinguishes itself by catering to diverse global market requirements and prioritizing long-term partnerships based on reliability and exceptional quality. Its extensive international presence covers regions such as Europe, the USA, the Middle East, and Asia, reaching countries like Germany, France, the UK, Poland, the United States, Russia, Vietnam, Thailand, Indonesia, Singapore, the Netherlands, Switzerland, South Korea, Japan, Turkey, the Philippines, Hong Kong, Taiwan, Italy, Spain, Hungary, and the Czech Republic. By aligning with the evolving demands of these markets through innovative and tailored solutions, the company emphasizes its dedication to fostering sustainable collaborations and delivering advanced manufacturing practices that continually redefine industry benchmarks.
