Import Disc Magnet Neodymium Magnet — Buy in Bulk from Supplier in China

The disc neodymium magnets supplied by Nanjing Huajin Magnet Co., Ltd. are sintered NdFeB magnets with grades ranging from N35 to N52, including high-temperature variants such as N35M and N40UH. These magnets exhibit remanence values between 11.7 kG and 14.8 kG and intrinsic coercivity levels from 10.5 kOe to 20.5 kOe, depending on grade. Dimensions are available in standard diameters from 3 mm to 50 mm with thicknesses from 1 mm to 20 mm, with axial magnetisation as the default orientation.

The material composition follows the standard Nd2Fe14B crystal structure with additions of dysprosium or terbium in higher-grade variants to enhance coercivity. Surface treatment is typically nickel-copper-nickel triple-layer plating for corrosion resistance, though epoxy or gold plating may be requested. These magnets are not inherently waterproof and require protective coatings in humid or corrosive environments. They are brittle and susceptible to chipping if impacted, necessitating careful handling during assembly.

These magnets are used in precision motors, sensors, magnetic couplings, and holding systems across automotive, consumer electronics, and industrial automation sectors. Buyers include OEMs of brushless DC motors, medical device manufacturers, and robotics integrators. Trade terms are typically FOB Nanjing or CIF port of destination, with packaging in anti-magnetic foam-lined boxes. MOQ is typically 1,000 pieces per grade and size, but smaller batches may be negotiated.

Nanjing Huajin Magnet Co., Ltd. is a manufacturer based in Jiangning District, Nanjing, Jiangsu Province, with a physical address listed on record. The company is classified as an imported supplier with harbor-level trust verification, indicating confirmed business registration and export compliance. No claims are made regarding company size, years in operation, or client list in the source data.

The supplier focuses exclusively on the production and export of sintered neodymium magnets, with no indication of involvement in other magnetic materials or downstream assembly. Response rate and average response time are not available, suggesting limited or no active engagement on the platform. Buyers should verify technical capacity directly before placing orders.