How To Choose The Right Cutting Tool for A CNC Oscillating Knife Machine

When using a CNC oscillating knife cutting machine, the cutting tool you choose has a huge impact on the cutting quality, efficiency, and tool lifespan. The right blade ensures smoother edges, cleaner cuts, and better overall performance. Here’s a practical guide to help you choose the best cutting tool for your CNC oscillating knife machine.

1. Choose the Blade Based on Material Type

Different materials require different blades for optimal results.

l Soft materials (like EVA, leather, rubber, foam, etc.)--Go for an oscillating knife or a rotary knife. The oscillating knife is perfect for detailed cuts, while the rotary knife works better for fast and continuous cutting.

l Hard materials (like PVC, composites, or carbon fiber)--Use carbide or tungsten steel blades, which are wear-resistant and maintain smooth edges.

l Honeycomb cardboard or corrugated board--Choose a serrated or vibration blade to avoid tearing and ensure cleaner cuts.

2. Match the Blade Length to Material Thickness

Blade length must match your material’s thickness.

l Thin materials (≤5mm)--Use a short blade for better stability and precision.

l Thick materials (≥10mm)--A longer blade is needed to reach full depth without incomplete cuts.

3. Pick the Blade Shape Based on Cutting Detail

If your design includes fine details or complex shapes, choose a sharp-point or precision oscillating blade.

For simple, repetitive shapes, select a durable, standard blade that can handle continuous work with consistent quality.

4. Match the Blade to Machine Power and Speed

The machine’s spindle power and oscillation frequency determine what type of blade you can use.

l Low-power machines--Suitable for lightweight carbon steel blades.

l High-power machines--Can handle high-hardness alloy blades for faster cutting and longer life.

Avoid using blades that exceed the machine’s load capacity--it can cause overload or breakage.

5. Maintain and Replace Blades Regularly

No matter which blade you choose, regular maintenance is key:

Clean blade edges after each use.

Inspect the blade regularly for wear and replace it when dull.

Ensure the blade holder is secure to prevent vibration or cutting deviation.

In Summary

Choosing the right cutting tool for your CNC oscillating knife machine depends on material type, thickness, cutting shape, and machine performance. The correct blade not only improves production efficiency but also extends equipment lifespan and reduces maintenance costs.

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