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The magnets with dimensions under 10mm are usually known as small or tiny magnets, and the 2mm or 1mm magnet is even called micro magnets. Because of the highest energy product of neodymium magnet material, even tiny neodymium magnets have a strong force and are known as tiny powerful, and strong magnets. Small and tiny rare earth neodymium magnets are often used in precision products. Meank does well in processing small&tiny neodymium magnets, even if the 1mm micro neodymium magnet.
Available surface treatment for tiny&small neodymium strong magnets
Although tiny& small neodymium strong magnets are widely used in many fields, they are not rust-resistant due to the material characteristic, specific layers must be selected according to different applications. Some available surface coating types for tiny&small rare earth neodymium strong magnets are listed on the table, please choose the appropriate coating after reading the details of each kind of coating.
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 |
The grade for small&tiny neodymium strong magnets
The highest grade of tiny&small neodymium strong&powerful magnets is N52, this form list out all available grade for tiny neodymium magnets, and maximum working temperature for each grade. Please correctly choose the grade for the tiny magnets.
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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