In EMI shielding applications requiring low compression force and high conductivity, Fabric-over-Foam gaskets are the preferred choice. However, their soft structure, a foam core wrapped in conductive fabric, makes custom cutting a critical operation: excessive pressure or an unsuitable blade can deform the profile, compromising shielding effectiveness.
To overcome this challenge, Euro Technologies has implemented a precision automatic cutting system specifically dedicated to these sensitive materials.
The Technical Challenge of "Soft" Materials
Fabric-over-Foam gaskets are designed to adapt to mechanical irregularities and wide closure tolerances. When supplied in spools, customers often handle the cutting internally, facing two main risks:
- Fabric Fraying: An imprecise cut can expose the foam core or create volatile conductive debris that is hazardous to electronics.
- “Mushrooming” Effect: Mechanical compression during manual or non-optimized cutting alters the profile shape at the ends, creating gaps where EMI interference can leak through.
Euro Technologies' Automated System
Our Cut-to-Length service for Fabric-over-Foam utilizes a synchronized feed and cut system that minimizes mechanical stress on the material. The advantages for the integrator are immediate:
- Profile Integrity: Each segment maintains its original cross-section, ensuring a uniform contact surface along the entire gasket.
- Millimetric Accuracy: Electronic length control ensures every piece is identical, which is essential for mass production in the Automotive and Telecom sectors.
- Ready-to-install: Providing pre-cut pieces ready for application (often with pre-applied pressure-sensitive adhesive) drastically reduces manual assembly times.
