Rare earth magnets with large size or high magnetic energy products are known as super strong magnets or super powerful magnets. Large neodymium magnets are known worldwide people as super strong magnets.
Available surface treatment for super neodymium magnets
Because the main component of a super neodymium magnet is iron, and iron is easy to oxidize, so the anti-corrosion ability of a super neodymium magnet is poor, and the surface must be coated before it can be used for a long time. Please refer to the table below to select the right coating of super magnet neodymium for your application.
Surface | Coating | Thickness (Microns) | Color | Resistance |
Passivation | 1 | Silver Grey | Temporary Protection | |
Nickel | Ni+Ni | 10-20 | Bright Silver | Excellent Against Humidity |
Ni+Cu+Ni | Good Against Salt Spray | |||
Zinc | Zn | 8-20 | Bright Blue | Excellent Against Salt Spray |
C-Zn | Shinny Color | Superior Against Humidity | ||
Tin | Ni+Cu+Sn | 15-20 | Silver | Superior Against Humidity |
Silver | Ni+Cu+Ag | 10-20 | Silver | Superior Against Humidity |
Gold | Ni+Cu+Au | 10-20 | Gold | Temporary Protection |
Copper | Ni+Cu | 10-20 | Gold | Excellent Against Humidity&Salt Spray |
Epoxy | Epoxy | 15-25 | Black, Red, Grey | Excellent Against Humidity, Salt Spray, Superior Against Solvents, Gases, Fungi and Bacteria, FDA Approved |
Ni+Cu+Epoxy | Excellent Against Humidity | |||
Zn+Epoxy | Resistance | |||
Parylene | Parylene | 5-20 | Grey | Excellent Against Humidity |
Chemical | Ni | 10-20 | Silver Grey | Excellent Against Humidity |
Caution is necessary for super strong neodymium magnets
There is a strong magnetic field around the super-strong neodymium magnets. Any electronic products and all kinds of magnetic cards within the magnetic field range will be damaged. It is necessary to use professional tools to split super strong neodymium magnets, and they must not be split by hand, otherwise, the magnets will be damaged due to the collision of super-strong suction, and even hurt the fingers. You should be careful when operating a super-strong neodymium magnet, otherwise, it will cause harm to the body due to strong suction.
The grade for super-powerful neodymium magnets
We not only have a full-size range of super-powerful magnets for sale but also provide a full grade range for each size of super-powerful magnet neodymium. The highest available grade for super strong neodymium magnets is N52, Please refer to the table below to select the right grade of the super neodymium magnets for your applications.
Neodymium Material Grade | Maximum Working Temp. | Curie Temp. |
N(N35,N38,N40,N42,N45,N48,N50,N52) | 176°F (80°C) | 590°F (310°C) |
N-M(N35M,N38M,N40M,N42M,N45M,N48M,N50M,N52M) | 212°F (100°C) | 644°F (340°C) |
N-H(N35H,N38H,N40H,N42H,N45H,N48H,N50H) | 248°F (120°C) | 644°F (340°C) |
N-SH(N35SH,N38SH,N40H,N42SH,N45SH,N48SH) | 302°F (150°C) | 644°F (340°C) |
N-UH(N28UH,N30UH,N33UH,N35UH,N38UH,N40UH,N42UH) | 356°F (180°C) | 662°F (350°C) |
N-EH(N28EH,N30EH,N33EH,N35EH,N38EH,N40EH) | 392°F (200°C) | 662°F (350°C) |
N-AH(N28AH,N33AH,N35AH,N38AH) | 428°F (230°C) | 662°F (350°C) |
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