Spiral Spring Gasket

Spiral Spring Gasket

  • Spiral-Spring-Gasket
  • Spiral-Spring-Gasket-with-Silicone-Core
  • Spiral-Spring-Gasket-with-Silicone

Overview

  • Mainly used in semiconductor manufacturing equipment, precision medical equipment, and communication equipment, which require highly EMI/RFI management secured excellent electromagnetic wave shielding effectiveness.
  • High elasticity beryllium copper or stainless steel sheet is spiraled to provide excellent elasticity, flexibility and high shielding effectiveness.

Features

  • RoHS Compliant
  • Superior shielding effectiveness over 100 dB
  • It can be cut in the longitudinal direction and can be easily inserted into the groove in a circular shape (Groove Mounting)
  • Hardness can be adjusted according to material thickness and spiral pitch of gaskets.

Details

Material Specification

Contents Silicone Sponge Silicone Rubber Tube Test Method
Core Color White Translucent -
Specific Gravity (g/cm3) 1.16 1.16 JIS K 6220
Hardness (JIS A) 53 61 JIS K 6253
Tensile Strength 91Kgf/㎠ 104Kgf/㎠ JIS K 6251
Elongation 320% 365% JIS K 6251
Metal Spring Material Beryllium copper #C17200 / Stainless steel #304H


Test Results

[Shielding Effectiveness]
Graph-Spiral-Gasket-Shielding-Effectiveness
  • Advantest Test [MIL STD-83528C Equivalent]
  • Sample#: SBT-044W
  • Sample Spec.: D4.4mm, Sn plated BeCu
[Compression Resistance]
Graph-Spiral-Gasket-Compression-Test
  • Test Spec.: ESQ-517-27 (Self-specification)
  • Recommended compression rate: 25%
  • Sample#: SBT-064W (3pins)

Applications

It is mainly used in precision equipment sensitive to electromagnetic waves such as semiconductor manufacturing equipment, display production equipment, and communication equipment.

  • Spiral-Spring-Gasket-in-Groove
  • Spiral-Spring-Gasket-in-Shielding-Case
  • Spiral-Spring-Gasket-with-Silicone-Seal