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CNC knife cutting machine

Different cutting tools for different flexible materials

Different cutting tools for different flexible materials

How to Choose the Right Cutting Tool for Flexible Materials with CNC Precision

CNC knife cutting machines are a game-changer for industries handling materials as diverse as rubber, foam, and textiles. But as versatile as these machines are, the key to getting top-notch results depends on picking the right cutting tool for the job. Every flexible material has its quirks—its own texture, density, and behavior under the blade—so pairing each with the ideal tool can save time, reduce waste, and improve your output quality. Below, we'll walk through a quick breakdown of which tool best suits some common materials in CNC cutting:

Rubber/Asbestos/graphite, etc.: Managing Density and Elasticity

Recommended Tools: Oscillating Knife, Servo knife

Description: For these gasket materials that are relatively hard and require precision cutting, vibration knives or servo knives are usually chosen, which can cut faster and produce cleaner edges.

Applications: Ideal for gaskets, seals, and industrial rubber products where clean edges are critical.

Foam: Lightweight and Flexible

Recommended Tools: Rotary Knife,Large amplitude knife

Description: Foam types vary in structure, from lightweight open-cell to denser closed-cell forms. A rotary knife is effective for intricate designs in lighter foam, while a large amplitude knife offers stability and depth control for denser foam to prevent deformation.

Applications: Packaging inserts, cushions, and automotive interiors where smooth, continuous cuts are essential.

Textiles and Fabrics: Soft, Stretchable, or Multi-Layered

Recommended Tools: Oscillating Knife, Rotary Knife

Description: For textiles such as cotton, polyester, and technical fabrics, an oscillating knife provides precise, clean cuts through multiple layers without damaging material edges. Delicate fabrics benefit from a rotary blade to prevent fraying and snagging.

Applications: Apparel, upholstery, and industrial textiles where precision and edge quality are required.

Leather: Durable and Pliable

Recommended Tools: Oscillating Knife

Description: Leather is dense and requires a tool that balances durability and flexibility. An oscillating knife can manage the material’s toughness, providing smooth, consistent cuts, especially for thick or layered leather.

Applications: Fashion accessories, automotive upholstery, and furniture where precise edge control is necessary.

Plastic Films and Thin Sheets: Rigid and Sensitive

Recommended Tools: Drag Knife, Vibration Knife, Milling tool

Description: Thin plastic sheets require stable, controlled cutting to avoid cracking or fraying. Drag knife is effective for general use, while a milling tool can handle thicker laminates or multi-layered plastics without causing stress on the material.

Applications: Packaging materials, printed graphics, and industrial parts where precision without material damage is essential.

Carpet and Floor Mats: Thick, Durable, and Fibered

Recommended Tools: Rotary Knife, Oscillating knife

Description: Carpets and floor mats are thick and sometimes multi-layered. A rotary knife ensures controlled, deep cuts that prevent fraying and allow smooth, continuous motion across tough fibers

Applications: Automotive carpets, custom floor mats, and rugs where cutting depth and smooth edges are needed.

Vinyl and Synthetic Materials: Elastic and Textured

Recommended Tools: Drag Knife, Oscillating Knife

Description: Vinyl and synthetic materials have a certain elasticity, often requiring a drag knife for consistent cuts without tugging. Oscillating knives can also be used for thicker vinyl applications where texture and precision are critical.

Applications: Signage, flooring, and automotive interiors where detailed, clean cuts enhance product quality.