Precision small magnetic steel for instruments and meters is a kind of miniature high-precision permanent magnet component tailored for precision instruments, testing meters, electronic measuring equipment and laboratory precision devices. It is made of high-purity neodymium iron boron and high-grade ferrite magnetic materials through ultra-precision processing, fine magnetization and strict performance screening, featuring small size, high precision, low magnetic leakage, stable magnetic field and high temperature resistance, which meets the ultra-high precision magnetic matching requirements of precision instrument equipment.

This series of small magnetic steel has extremely strict dimensional tolerance control, with the dimensional error controlled within ±0.03mm, and the flatness and verticality of the product reach the industry's high-precision standard, which can realize precise embedded assembly of miniature instrument structures. Through professional magnetic field stabilization treatment, the product has extremely low magnetic attenuation rate, and the magnetic field strength remains stable for a long time, avoiding instrument detection deviation and data error caused by magnetic force changes. The product adopts low-temperature demagnetization prevention process, with good anti-interference performance, which can resist the influence of external weak magnetic field and temperature changes, and ensure the long-term accurate operation of precision instruments and meters.

In terms of performance matching, precision magnetic steel has uniform magnetic field distribution and accurate magnetic parameter values, which can provide stable magnetic field sources for pointer instruments, electromagnetic measuring instruments, pressure sensors, flow meters and other equipment, and assist in accurate data detection and signal feedback. The surface is treated with high-precision anti-corrosion coating, which is smooth and wear-resistant, free from dust and corrosion, and adapts to the dust-free and precise working environment of laboratory and instrument workshop. The miniaturized and lightweight design is suitable for the compact structural layout of modern precision instruments, saving internal space of equipment and optimizing instrument performance. Widely used in aerospace instruments, industrial measuring meters, medical testing instruments, laboratory precision equipment and other fields, precision small magnetic steel is the core basic component to ensure the precision, stability and reliability of instrument operation.