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Neodymium Disc Magnets

The flat and round shape strong NdFeB magnets are give the name of disc neodymium(NdFeB) strong magnets,the size of diameter is larger than its thickness,NdFeB disc magnet expressed by ...



Surface Treatment of Strong Disc NdFeB Magnets


Strong neodymium(NdFeB) disc 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

Resistance

Parylene

Parylene

5-20

Grey

Excellent Against Humidity

Chemical

Ni

10-20

Silver Grey

Excellent Against Humidity



The Magnetization Direction of Powerful Neodymium Disc Magnets


The magnetized direction of powerful neodymium(NdFeB) disc magnets is generally divided into axially magnetized and diametrically magnetized, which is determined according to the required working face. Please tell us the magnetization direction of the magnets you need.


Custom Round Shaped Rare Earth Disc Magnets for Sale


NdFeB magnets are non-standard rare earth industry magnetic products, sintered Nd-Fe-B material has good machinability and can be customized into different sizes of neodymium(NdFeB) disc magnets, mold is not needed for customizing strong neodymium disc magnets. We can make tiny and large neodymium disc magnets for any quantity.


The Maximum Working Temperature of Neodymium Disk Magnets for Each 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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