The sintered cube neodymium magnets that have the same size on length, width, and height are called strong neodymium magnets cube, which can be understood as special neodymium block magnets.
Surface Treatment of Strong Neodymium Cube Magnets
Neodymium(NdFeB) cube magnets have super powerful magnetism, but they are easy to corrode, so 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
Custom Rare Earth Cube Magnets
Neodymium cube magnets are non-standard rare earth cube magnet for industry,due to sintered Nd-Fe-B material has good machinability and can be customized into different sizes of neodymium(NdFeB)
cube magnets, the exact mould is not demanded for customizing strong neodymium cube magnets.You can order tiny and large neodymium cube magnets for any quantity from us.
Maximum Working Temperature for Each Grade of Strong NdFeB Cube 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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