Why Diametrically Magnetized Cylindrical N38M Magnets Are Ideal for Rotary Encoders

Why Diametrically Magnetized Cylindrical N38M Magnets Are Ideal for Rotary Encoders

Diametrically magnetized cylindrical N38M neodymium magnets have become the preferred magnetic component for general-purpose rotary position encoder assemblies in industrial automation. Unlike axially magnetized magnets, their north and south poles distribute on opposite curved sides, generating a stable rotating magnetic field that matches the working principle of magnetic encoders perfectly.

The N38M grade features a 100℃ maximum operating temperature, fully adapting to the normal working environment of conventional encoders. It balances stable magnetic flux density and cost efficiency, avoiding excessive performance waste for standard positioning and speed detection scenarios.

These compact cylindrical magnets support non-contact signal induction with Hall sensors, ensuring accurate angular measurement and consistent rotary position feedback. They are widely applied in servo equipment, automated machinery, and small motor positioning systems.

For most civilian and industrial encoder projects, diametrically magnetized N38M cylindrical neodymium magnets provide reliable. As a professional neodymium magnet manufacturer, we supply custom magnet with different grades and dimensions. Feel free to contact us for samples and quotations.