Neodymium Bar Magnets
The thin&long neodymium rectangle magnets are give another name of strong neodymium(NdFeB) bar or strip magnets, The same as normal block(rectangular) neodymium magnet, neodymium bar and strip magnets also expressed by length(L) x width(W) x thickness(T).
Surface Treatment of Strong Rare Earth NdFeB Bar Magnets
Strong neodymium(NdFeB) bar magnets are easy to corrode, and their surface needs to be coated, generally including zinc plating, nickel, environmental protection zinc, environmental protection nickel, nickel copper-nickel, environmental protection nickel copper-nickel, epoxy coating, etc.
|
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 |
Magnetization Direction of Powerful & Strong neodymium strip
The magnetized direction of powerful neodymium(NdFeB) bar&strip magnets can be magnetized through all directions, which is determined according to the required working face. Please let us know the magnetization direction when sending us an inquiry.
Custom Strong Neodymium(NdFeB) Strip Magnets
Neodymium bar&strip magnets are non-standard products, rare earth NdFeB magnets are made according to customers' needs. Sintered neodymium material has good machinability and can be machined into different sizes of neodymium(NdFeB) bar magnets, mould is not needed for customizing strong neodymium bar or strip magnets. We can make tiny and large neodymium bar magnets for any quantity.
Maximum Working Temperature for Each Grade of Simple Bar Shaped Magnet
|
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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