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Neodymium Arc Magnets

The strong neodymium(NdFeB) magnets in arc/segment shape are mainly used in permanent magnet motor and called neodymium magnetic tile. Strong neodymium(NdFeB) magnetic tile is mainly used in permanent magnet DC motors.



Surface Treatment is Needed for Strong Neodymium(NdFeB) Segment Magnets


Strong neodymium(NdFeB) arc/segment magnets are not rust-resistant and easy to corrode, and its surface need 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 Ndfeb Arc Magnets


The magnetized direction of powerful neodymium(NdFeB) ring magnets generally divided into radially magnetized and diameterly magnetization, which is determined according to the required working face.Please let us know the magnetization direction when you send us inquiry for rare earth NdFeB magnets.


Custom Strong Large Neodymium Arc Magnets


Neodymium arc magnets are custom magnetic tiles,sintered Nd-Fe-B material has good machinability and c.an be customized into different sizes of neodymium(NdFeB) arc/segment magnets,mould is not necessary for customizing strong neodymium arc magnets.We can make machine strong neodymium magnetic tile for all kinds of motors.Please provide drawings when you inquiry and order strong neodymium arc magnets for use.


The Maximum Working Temperature of Strong Neodymium Arc Magnets for All Material Grade


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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