Neodymium Magnet Buying Guide: Key Metrics & Applications for Wholesalers

Neodymium Magnet Buying Guide: Key Metrics & Applications for Wholesalers

For wholesalers sourcing neodymium magnets wholesale, focusing on core metrics and application matching is key to securing high-value, marketable inventory.

Start with grade and magnetic strength. Grades range from N35 to N52 neodymium magnets, with higher numbers indicating stronger magnetism. N52 neodymium magnets are the top commercial grade, ideal for precision motors and sensors, while N35 neodymium magnets offer cost-efficiency for toys, stationery, and basic industrial parts.

Next, temperature resistance cannot be overlooked. Standard N-series rare earth neodymium magnets work well below 80℃, but high-heat scenarios such as automotive components and industrial ovens demand SH (150℃ max) or EH (200℃ max) high temp neodymium magnets grades to prevent magnetic loss.

Plating choice depends on end-use environments. Nickel-copper-nickel plating is the go-to for corrosion resistance, fitting most outdoor and electronic applications of coated neodymium magnets. Zinc plating cuts costs for dry indoor use, and epoxy plating suits acidic or alkaline settings of industrial neodymium magnets.

Dimensional tolerance matters too. Tight tolerance (±0.05mm) is a must for precision devices, while ±0.1mm tolerance meets general needs at a lower cost for custom neodymium magnets.

Finally, follow smart procurement tips. Test samples with a gaussmeter to avoid grade fraud; partner with manufacturers offering customization for size and plating of neodymium magnet suppliers; and verify supply chain compliance to ensure smooth exports of neodymium magnets for export.

By aligning metrics with target applications, wholesalers can optimize inventory and meet diverse customer demands for bulk neodymium magnets.