Neodymium Magnets

Neodymium Magnet Products We Supply

Neodymium Disc Magnets
 

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Neodymium Block Magnets
 

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Neodymium Ring Magnets
 

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Neodymium Cylinder Magnets
 

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Neodymium Arc Magnets
 

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Countersunk Neodymium Magnets

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Neodymium Bar Magnets
 

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Neodymium Sphere Magnets

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Neodymium Magnet Grades

N35, N42 and N52 are among the most commonly requested neodymium magnet grades. The grade number relates to the magnetic energy of the material, but it does not directly tell you the finished magnets' pull force.

N52 is not always the best choice. If N42 already provides sufficient magnetic performance, using N52 may increase cost without creating a meaningful benefit. For high-temperature applications, temperature resistance may be more important than selecting the highest grade.

Neodymium Magnet Coating Options

Sintered neodymium magnets contain iron and may corrode when exposed to humidity, salt, or certain chemicals. Selecting the right coating helps protect the magnet during storage, assembly, and operation.

Your coating should be selected based on actual humidity, corrosion risk, friction, chemical exposure, and assembly method. If the magnet will be bonded, press-fitted, or overmolded, please tell us during the specification review.

Neodymium Magnetization Directions 

Magnetization direction determines where the north and south poles appear and how the magnet works inside your product. A magnet with the correct dimensions but the wrong magnetization direction may not function in the assembly.

 

Axial Magnetization

The poles are located on the two flat faces of the magnet. This is the most common direction for discs, rings, and blocks used for direct holding.

 

Diametrical Magnetization

The poles are positioned on opposite curved sides of a cylinder or ring. Diametrical magnetization is often used in rotary sensors, encoders, and switches.

 

Radial Magnetization

The magnetic field runs between the inner and outer surfaces of a ring or arc magnet. This arrangement is used in certain motors, rotors, and magnetic couplings.

 

Multipole Magnetization

Several alternating north and south poles are created around a ring or on a magnet surface. The pole count, pole pitch, and alignment must match the motor or sensor design.

Quality Control System Testing Machines

Magnetic Tester

 

Laser Granularity Analyzer

Scanning Electron Microscope

3D Flash Measuring Instrument 

EF5 Electronic Fluxmeter

Oxygen Analyzer

Hast Tester

Inductively Coupled Plasms

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Trusted by Leading Industrial Brands

GME provides NdFeB magnets and magnetic solutions to customers across sectors such as electric motors, power systems, home appliances, industrial automation, and aerospace equipment. Our partners include renowned brands such as WEG, China Wanxiang, Dyson, and Lexy. By exercising strict control over magnet grades, dimensions, coatings, magnetization directions, and batch consistency, we help our customers ensure reliable magnet performance throughout the entire process—from prototype testing to mass production.

NdFeB Magnet Production Equipment

Strip Casting Furnace

Hydrogen Decarburization Furnace

400 Jet Milling

Slicing Machines

Automatic Pressing Machine

Isostatic Pressing Machine

Vacuum Sintering Furnace

Chamfering Machine

How to Separate and Reassemble Magnets

To separate neodymium magnets safely, slide one magnet sideways off the stack instead of pulling it straight up. Keep your fingers away from the contact surfaces and do not allow the magnets to snap together. When reassembling them, check the pole direction, align the magnets carefully, and slide them slowly back into place. This helps prevent pinched fingers, chipped coatings, cracked magnets, and incorrect pole positioning.

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Applications of Neodymium Magnets 

Neodymium magnets are used in many industrial and commercial products where strong magnetic performance and compact size are required.
 

Electric Motors and Generators

Arc, block and ring magnets are used in permanent-magnet motors, generators and rotors. Grade, temperature resistance and magnetization direction are important selection factors.
 

Household Appliances

NdFeB magnets are used in appliance motors, pumps, switches, closures and other internal components.

 

Industrial Automation

Neodymium magnets are used in positioning systems, fixtures, robotic equipment, and automated production devices.

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Limitations of Neodymium Magnets

Understanding the limitations of NdFeB helps you avoid premature corrosion, cracking, and magnetic performance loss.

Temperature Sensitivity

Magnetic output decreases as temperature rises. Excessive heat may cause irreversible demagnetization, especially when the selected grade does not match the operating temperature.

Corrosion Risk

Unprotected NdFeB can corrode in humid, salty, or chemically aggressive environments. A suitable coating or sealed assembly is usually required.

Brittle Material

Neodymium magnets are hard but brittle. They may chip or crack if dropped, struck, over-tightened, or allowed to snap together.

Difficult to Machine After Magnetization

Finished neodymium magnets should not normally be drilled, cut, or ground. Special holes and profiles should be produced before coating and magnetization.

Strong Attraction Force

Large magnets can cause pinch injuries and may interfere with electronic devices, sensors, and medical implants. Suitable handling and packaging procedures are necessary.

Great Magtech (Xiamen) Electric Co., Ltd is one of the most experienced neodymium magnets manufacturers and suppliers in China. Welcome to wholesale neodymium magnets from our factory.