N52 Strong Neodymium Rare Earth Industrial Disc Magnets for Heavy Duty Use

As a professional magnetic material supplier, our disc magnets are manufactured using advanced sintered NdFeB (Neodymium Iron Boron) technology. NdFeB is the strongest commercially available permanent magnet with the highest magnetic energy product (BH max). We strictly control raw material ratios to ensure a high-purity combination of neodymium (Nd), iron (Fe), and boron (B). Compared with standard N35 or N42 grades, N52 magnets provide approximately 20%–30% extra pull force per unit volume. This enables B2B customers to design more compact devices with stronger magnetic performance, optimizing product spatial efficiency.

Advanced Triple-Layer Coating Technology
To resist oxidation and corrosion in industrial environments, all our magnets are equipped with Ni-Cu-Ni (nickel-copper-nickel) triple-layer plating. This coating has passed 24–96 hours of salt spray testing, exceeding typical industry standards.

• Top & Bottom Layers: High-quality nickel plating ensures a bright appearance and excellent wear resistance.

• Middle Layer: Highly ductile copper plating enhances adhesion between the magnet surface and the plating layers.

Exceptional Physical Properties & Thermal Stability
Our N52 magnets are engineered for industrial-grade stability, with a maximum operating temperature of 80°C (176°F). Precise sintering ensures outstanding coercivity (Hc) and remanence (Br), minimizing magnetic decay under long-term mechanical stress.

Quality Assurance & Compliance
We maintain rigorous QC procedures, including dimensional tolerance checks (precision within ±0.05mm), Gauss testing, and pull force testing. All materials meet RoHS and REACH environmental standards, ensuring compliance with global export regulations.