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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