SUS420 Magnetic Spring Sheet

Our magnetic spring plates achieve high hardness (up to HRC 50+) through heat treatment (quenching + tempering), while maintaining adequate elasticity and toughness. They offer excellent wear resistance and serve as durable elastic components for long-term, repeated contact applications.

Description

SUS420 Magnetic Spring Sheet

Primary Applications
Electromagnetic Shielding and Grounding

Used internally in electronic products such as mobile phones, tablets, and communication devices as electromagnetic shielding springs or grounding springs. It directs electromagnetic interference from circuit boards to the metal casing, reducing electromagnetic interference (EMI) and radio frequency interference (RFI) to enhance device stability.

Relays, Switches, and Sensors

In electromagnetic relays, microswitches, or magnetic sensors, it functions as a magnetic-conductive and elastic contact component. Its magnetic properties and elasticity enable circuit closure and disconnection.

Hard Disk Drives (HDD) and Optical Drives

Used in head positioning mechanisms or micro-motors, its magnetic conductivity and elasticity provide support, positioning, or damping functions.

Micro Motors and Speakers

In vibration motors, miniature speakers, or earpieces, they function as magnetic spring elements, participating in magnetic circuit construction or providing elastic support.

Precision Machinery and Automation Equipment

Used in precision mechanisms requiring small-range elastic displacement and magnetic sensing, such as autofocus camera modules and optical devices.