The square shape strong neodymium (NdFeB) magnets are given the name of rare earth neodymium(NdFeB) block magnets or rectangular magnets,one strong NdFeB block(rectangular) magnet is expressed by length(L) x width(W) x thickness(T) / height(H).The strongest rare earth magnet blocks are made of neodymium.
The square shape strong neodymium (NdFeB) magnets are give the name of rare earth neodymium(NdFeB) block magnets or rectangular magnets,one strong NdFeB block(rectangular) magnet is expressed by length(L) x width(W) x thickness(T) / height(H).The strongest rare earth magnet blocks are made of neodymium.
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 | ||||
Parylene | Parylene | 5-20 | Grey | Excellent Against Humidity |
Chemical | Ni | 10-20 | Silver Grey | Excellent Against Humidity |
NdFeB block magnets are non-standard products, sintered NdFeB material has good machinability and can be customized into different sizes of neodymium(NdFeB) block magnets, mold is not needed for customizing strong neodymium rectangular magnets. We can make tiny and large neodymium block magnets for any quantity.
1, Choose the correct neodymium magnet grade for the block magnets according to working temperature and the needed magnetic performance.
2, Choose the correct surface treatment according to the application conditions.
3, Clear for the magnetization directions for the block neodymium magnets.
We have various square/block rare earth NdFeB magnets for sale, customization is also available. Contact us to know the square magnet price.
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) |
Related Products
Please fill the form to let us know your need. Our sales will get in touch with you ASAP.