Traditional manual cutting or die-cutting often fails to meet these strict requirements. That is why more gasket manufacturers are turning to CNC oscillating knife cutting machines.
1. The Problem With Traditional Gasket Cutting
1) High Mold Cost for Die-Cutting
Every new size or shape requires a new steel mold, which increases production cost.
2) Slow Order Switching
Mold changing and setup time reduce flexibility, especially during small-batch or customized orders.
3) Inconsistent Accuracy
Manual cutting leads to size variations, uneven edges, and waste of expensive materials like rubber and silicone.
4) Difficulty Cutting Complex Internal Holes
Gaskets often require multiple small inner holes, which are hard to achieve manually.
2. Why CNC Oscillating Knife Cutting Is Ideal for Gasket Production
✔ Supports a Wide Range of Materials
Including:
Rubber (EPDM, NBR, SBR, CR)
Silicone sheets
Neoprene
EVA foam
Cork composite
PVC/PU foams
Insulation boards
✔ Clean, Accurate Cuts Without Burning
Because it is cold cutting, materials maintain their sealing performance, thickness, and structural integrity.
✔ Perfect for Complex Shapes
Ideal for:
Pump sealing rings
Automotive gaskets
Electrical insulation pads
HVAC sealing parts
Machine maintenance parts
✔ Zero Mold Cost and Rapid Switching
Patterns can be changed instantly via software—no physical tools required.
3. Benefits for Industrial Plants
• Exceptional Dimensional Precision
Ensures proper sealing performance over long-term operation.
• Faster Production Speed
Suitable for both mass production and custom one-off orders.
• Minimal Material Waste
Automatic nesting increases yield from expensive rubber sheets.
• Cleaner and Safer Working Environment
No smoke, no burning smell, no dust compared to other methods.
4. Where CNC Gasket Cutting Is Commonly Used
Automotive sealing parts
Industrial machinery gaskets
Oil-resistant rubber seals
Electronic insulation pads
Water pump and valve gaskets
HVAC system sealing components
Foam protective inserts
Conclusion
CNC oscillating knife cutting machines offer gasket manufacturers a modern, flexible, and highly precise method of production. They reduce cost, improve accuracy, and support a wide range of materials without requiring molds or heat.
