Neodymium Disc Magnets

Description：

GESmaterials offers a comprehensive range of high-performance rare earth neodymium disc magnets, ideal for various applications. Our neodymium magnets come in multiple grades, from N35 to the powerful N52, providing a broad selection to meet diverse needs. The most popular grade in our inventory is N42, which strikes an excellent balance between affordability and superior strength.

Our collection includes disc magnets and cylinder/rod magnets in sizes ranging from tiny 1/16″ diameter discs to large, robust 3″ diameter magnets, perfect for heavy-duty applications. We also offer thin flat disc magnets, with thicknesses starting from just 1/32″ (~0.8mm), ideal for applications requiring compact and space-efficient designs.

Specifications ：

• Material: Neodymium Iron Boron (NdFeB)
• Shape: Disc (Round)
• Tolerance： ±0.004″ (0.1mm) for all dimensions
• Grade: N35 N38 N40 N42 N45 N48 N50 N52
• Heat Grades: NM NH NSH NUH NEH NAH
• Plating/Coating: nickel (Ni-Cu-Ni), black nickel, gold, rubber, and plastic. （Our standard finish is a triple-layer Ni-Cu-Ni coating for corrosion protection and a smooth silver surface.）
• Magnetization Direction:
  

  Through-thickness axial polarization / Through-diameter diametric polarization

Applications：

• Electronics – Used in speakers, hard drives, and sensors.
• Medical Devices – MRI machines, prosthetics, and drug delivery systems.
• Industrial Uses – Magnetic couplings, motors, and holding systems.
• DIY & Crafts – Hobby projects, science experiments, and fridge magnets.