Strong Neodymium Bar Magnets Zn Coating NdFeB Permanent Magnets
Neodymium magnets are a composition of mostly Neodymium, Iron and Boron. If left exposed to the elements, the iron in the magnet will rust. To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated. There are a variety of options for coatings, but nickel is the most common and usually preferred. Our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again. This triple coating makes our magnets much more durable than the more common single nickel plated magnets. Some other options for coating are Zn, Cr, Gold, Silver, Epoxy, Phosphating.
Specification
Grade | Max Operating Temperature | Grade | Max Operating Temperature |
N35-N48 | 80℃ (176℉) | 30SH-45SH | 150℃ (302℉) |
N50-N52 | 60℃ (140℉) | 30UH-45UH | 180℃ (356℉) |
30M-50M | 100℃ (212℉) | 28EH-38EH | 200℃ (392℉) |
30H-48H | 120℃ (248℉) | 28AH-35AH | 230℃ (446℉) |
Sintered neodymium iron boron permanent magnet materials have excellent magnetic properties and are widely used in fields such as electronics, power machinery, medical equipment, toys, packaging, hardware machinery, aerospace, etc. Common ones include permanent magnet motors, speakers, magnetic separators, computer disk drives, magnetic resonance imaging equipment instruments, etc.