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Neodymium Cylinder Magnets

The long and round shape sintered NdFeB magnets are give the name of strong neodymium(NdFeB) cylinder magnets,which also known as strong neodymium magnet rods,different from normal disc shape,the size of thickness is larger than its diameter,NdFeB cylinder magnet expressed by diameter(D) x length(L).


Surface Electroplating Treatment is Demanded Strong NdFeB Cylinder Magnets


Strong neodymium(NdFeB) cylinder magnets are easy to corrode, and electroplating is needed for rust-resistant, 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



The Magnetization Direction of Powerful Cylindrical Ndfeb Magnets


The magnetized direction of powerful neodymium(NdFeB) rod magnets is generally divided into axially magnetized and diameter magnetized, which is determined according to the required working face.


Custom Strong Rare Earth Neodymium Cylinder Shaped Magnets


NdFeB rod/cylinder magnets are custom products, sintered Nd-Fe-B material has good machinability and can be customized into different sizes of cylindrical neodymium(NdFeB) magnets, exact mold is not needed for customizing strong neodymium cylinder magnets. We can customize tiny and large size neodymium cylinder magnets for any quantity.


Maximum Working Temperature of Strong Cylindrical Neodymium Magnets for Different 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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