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Neodymium Cone Magnets

The strong neodymium(NdFeB) cone magnets are special disc or cylinder magnets that the two ends have not the same size. One rare earth strong neodymium cone magnet is expressed by bottom diameter(D1)x top diameter(D2) x thickness(T).



Surface Treatment is Needed for Rare Earth Strong Cone Shape Neodymium Magnets


Strong neodymium(NdFeB) cone 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 NdFeB Cone Magnets


The magnetized direction of powerful neodymium(NdFeB) cone magnets generally divided into axially magnetized and diameterly magnetization, which is determined according to the required working face.Please tell us which end is N-pole when you order cone shape strong neodymium magnets from us.


Custom Rare Earth Neodymium(NdFeB) Cone Magnets


Rare earth NdFeB magnets are non-standard products,sintered Nd-Fe-B material has good machinability and can be customized into different sizes of neodymium(NdFeB) cone magnets,mould is not necessary for customizing powerful neodymium cone magnets.We can make machine cone shape neodymium magnets for any quantity from tiny size to large size.


Maximum Working Temperature for Various Grade of Strong Neodymium Cone Shaped 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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