Neodymium Magnet Buying Guide: Key Metrics & Applications for Wholesalers

Neodymium Magnet Buying Guide: Key Metrics & Applications for Wholesalers

For magnet wholesalers, choosing the right neodymium magnets is key to satisfying client needs, cutting costs, and winning market share. This condensed guide outlines core performance metrics and application matches to streamline your purchasing decisions.

Core Performance Metrics to Prioritize

1. Magnetic Strength (BHmax)

Higher grades (e.g., N52) deliver stronger magnetism but cost more; lower grades (e.g., N35) are budget-friendly for low-demand uses. Stock a mix to cover high-performance and cost-sensitive clients.

2. Temperature Resistance

Standard N-series grades work up to 80°C; high-temperature EH/AH-series withstand 150–200°C. Match grades to end-use environments—overheating causes permanent magnetism loss.

3. Corrosion Resistance & Coatings

Bare neodymium magnets rust easily, so coatings are mandatory:

◦ Ni-Cu-Ni: All-purpose, excellent corrosion resistance

◦ Zinc plating: Cost-effective for indoor use

◦ Epoxy coating: Superior protection for harsh environments

Application & Grade Matchup (Wholesaler-Focused)

Application Sector Recommended Grade Wholesaler Selling Points

New Energy Vehicle Motors N48SH / N50UH Meets auto industry standards; stable performance cuts client replacement costs

Warehouse Magnetic Shelving N35-N42 (Zinc-plated) Competitive bulk pricing; customizable sizes for diverse shelf designs

Consumer Electronics N38-N45 (Ni-Cu-Ni coated) RoHS-compliant; compact packaging for efficient shipping

Industrial Sensors N42EH Tight tolerance; reliable in extreme temperatures for automation lines

Conclusion & CTA

Align neodymium magnet grades with client application needs to optimize inventory and reduce returns.