Why Neodymium Disc Magnet Are Essential for Hydraulic And Pneumatic Solenoid Valves?

Why do hydraulic and pneumatic solenoid valve manufacturers prefer disc neodymium magnets for internal sensor positioning?

Solenoid valves are core control components for industrial fluid automation, requiring fast response, stable sensing .Unlike ordinary magnet, neodymium disc magnet is the most common shape for valve internal Hall position detection and magnetic induction modules. The thin, flat structure fits compact valve inner space perfectly without affecting mechanical movement.

For standard hydraulic and pneumatic valve working conditions, N35 and N38 grades are the mainstream choices. For equipment with continuous temperature fluctuation, N35M and N38M temperature‑resistant grades are widely adopted to avoid magnetic demagnetization.  using Ni‑Cu‑Ni triple nickel plating, providing excellent anti‑corrosion and anti‑oxidation performance for humid industrial workshop environments.

The disc magnet adopt standard axial magnetization. Accurate magnetic consistency ensures precise valve switch judgment and sensitive sensor feedback. Strict dimensional tolerance supports automated mass assembly for valve manufacturers.

With stable magnetism and cost‑effective performance, our disc neodymium magnets have become standard matching accessories for European hydraulic and pneumatic solenoid valve industries.