Popular Neodymium Arc Magnet Types

Twisted neodymium arc magnets

This special type of curved magnet is called a twisted arc (curved) magnet, which is made of rare earth neodymium and used in permanent DC motors. 

Characteristics of twisted arc magnets:

Available grades:

N grade: N35, N38, N40, N42, N45, N48, N50, N50;

M grade: 33M, 35M, 38M, 40M, 42M, 45M, N48M, 50M;

H grade: 35H, 38H, 40H, 42H, 45H, 48H;

SH grade: 35SH, 38SH, 40SH, 42SH, 45SH;

UH grade: 28UH, 30UH, 33UH, 35UH, 38UH, 40UH;

EH grade: 28EH, 30EH, 33EH, 35EH, 38EH;

AH grade: 28AH, 30AH, 33AH, 35AH;

Surface treatment: 

nickel-copper-nickel (three-layer coating), zinc, phosphating, epoxy resin;

Operating temperature: 

n series ≤80℃; m series ≤100℃; h series ≤120℃; SH series ≤150℃; UH series ≤180℃; EH series ≤200℃; AH series ≤230℃.

Neodymium arc segment magnets with screw holes

Sometimes it is necessary to drill holes on the fan-shaped magnet for installation. Through-holes and countersunk holes can be made on the neodymium segment. We can stably produce high-performance neodymium arc segment magnets of N52, 50M, 48H, 45SH, 40UH and 35EH.

Characteristics of fan-shaped magnets with screw holes:

Surface treatment: 

nickel-copper-nickel (three-layer coating), zinc, phosphating, epoxy resin;

Available grades:

N grade: N35, N38, N40, N42, N45, N48, N50, N50;

M grade: 33M, 35M, 38M, 40M, 42M, 45M, N48M, 50M;

H grade: 35H, 38H, 40H, 42H, 45H, 48H;

SH grade: 35SH, 38SH, 40SH, 42SH, 45SH;

UH grade: 28UH, 30UH, 33UH, 35UH, 38UH, 40UH;

EH grade: 28EH, 30EH, 33EH, 35EH, 38EH;

AH grade: 28AH, 30AH, 33AH, 35AH;

Operating temperature: 

n series ≤80℃; m series ≤100℃; h series ≤120℃; SH series ≤150℃; UH series ≤180℃; EH series ≤200℃; AH series ≤230℃.

Epoxy-coated neodymium arc magnets

The most common coating for curved (arc-shaped) neodymium (NdFeB) magnets is epoxy resin. Epoxy coatings have the advantages of high temperature resistance and salt spray resistance. Our epoxy-coated neodymium arc magnets are coated with a nickel-copper coating and have three layers of nickel-copper + epoxy resin coating.

Meank Magnet's epoxy-coated arc-shaped neodymium magnets (magnetic tiles) are used in compressors, elevators, and motor fields.

Characteristics of epoxy-coated arc magnets:

Operating temperature: 

n series ≤80℃; m series ≤100℃; h series ≤120℃; SH series ≤150℃; UH series ≤180℃; EH series ≤200℃; AH series ≤230℃.

Surface treatment: 

nickel-copper-nickel (three-layer coating), zinc, phosphating, epoxy resin.

Available grades:

N grade: N35, N38, N40, N42, N45, N48, N50, N50;

M grade: 33M, 35M, 38M, 40M, 42M, 45M, N48M, 50M;

H grade: 35H, 38H, 40H, 42H, 45H, 48H;

SH grade: 35SH, 38SH, 40SH, 42SH, 45SH;

UH grade: 28UH, 30UH, 33UH, 35UH, 38UH, 40UH;

EH grade: 28EH, 30EH, 33EH, 35EH, 38EH;

AH grade: 28AH, 30AH, 33AH, 35AH;

High temperature resistant neodymium arc magnets

Neodymium arc magnets of SH, UH, EH, AH grades are called high temperature-resistant arc magnets. High temperature-resistant arc magnets are widely used in rotors, stators, and DC motors. Neodymium arc/arc magnets that are resistant to high temperatures are usually coated with epoxy resin, nickel, or galvanized.

Characteristics of high temperature-resistant arc magnets:

Available grades:

SH grade: 35SH, 38SH, 40SH, 42SH, 45SH;

UH grade: 28UH, 30UH, 33UH, 35UH, 38UH, 40UH;

EH grade: 28EH, 30EH, 33EH, 35EH, 38EH;

AH grade: 28AH, 30AH, 33AH, 35AH;

Operating temperature: 

SH series ≤150℃; UH series ≤180℃; EH series ≤200℃; AH series ≤230℃.

As one of the pro arc magnets manufacturers in China, BeiLun Meank can customize the sizes and temperature resistance of the arc magnets in accordance with your own requests. Feel free to contact us at any time.