Neodymium Magnets (NdFeB)

Neodymium iron boron magnets (NdFeB) are among the strongest permanent magnets and provide maximum magnetic force in the smallest of spaces. Thanks to their high energy density, they are ideal for demanding applications in industry, technology, and electronics. masetec offers a wide selection of NdFeB magnets – perfectly tailored to your requirements.

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Application Areas

Position control, contactless switching, speed measurement

All advantages at a glance

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Extremely high magnetic force:

Strongest permanent magnets for maximum performance.

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Space-saving:

High energy density enables compact design.

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Versatile applications:

Ideal for industry, technology, and electronics.

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Durable:

High resistance with the correct coating.

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Individually customizable:

Available in various shapes, sizes, and alloys

Caution with NdFeB magnets

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Coating required:

For use in humid or aggressive atmospheres, a coating for corrosion protection is essential.

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Not infinitely temperature-resistant:

Maximum recommended temperature is +230°C.

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Observe temperature coefficient:

Always depending on the grade

Use of NdFeB magnets

Due to their stable and high magnetic effect with low heat generation, NdFeB magnets are particularly suitable for sensor technology or in electric motors and generators. They are even frequently used in wind turbines. Advantages of NdFeB magnets include their high adhesive strength even at small sizes and their low cost. This saves both space and money.

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Structure of Neodymium Magnets

Neodymium magnets (NdFeB) consist of an alloy of neodymium, iron, and boron. This composition gives them an exceptionally high magnetic force. To prevent corrosion, they are often provided with a protective coating of nickel, zinc, or epoxy resin. Depending on the application, they can be manufactured in various shapes and magnetization directions.

Production of Neodymium Magnets

The components of NdFeB magnets are finely ground and pressed under the influence of a strong magnetic field. Sintering stabilizes the magnetic effect. The strength of the magnet is determined by the energy density. Due to the occurrence of raw materials, the majority of NdFeB magnets are manufactured in Asia.

Coatings on NdFeB Magnets

NdFeB magnets are susceptible to corrosion and are therefore coated with protective layers such as nickel, zinc, or epoxy resin. These coatings increase resistance to moisture, chemical influences, and mechanical wear, making the magnets more durable and robust.

Magnet Selection Guide


ENERGY PRODUCT	Ferrite	AlNiCo	NdFeB
COSTS	Ferrite	AlNiCo	SmCo
MAX. OPERATING TEMPERATURE	NdFeB	SmCo	AlNiCo
CORROSION RESISTANCE	NdFeB	AlNiCo	Ferrite
RESISTANCE TO DEMAGNETIZATION	AlNiCo	Ferrite	SmCo
MECHANICAL STRENGTH	Ferrite	NdFeB	AlNiCo
TEMPERATURE COEFFICIENT	AlNiCo	SmCo	Ferrite
MAGNETIC STABILITY AT HIGH TEMPERATURES	NdFeB	Ferrite	SmCo


Energy product	Ferrite	AlNiCo	NdFeB
Costs	Ferrite	AlNiCo	SmCo
Maximum operating temperature	NdFeB	SmCo	AlNiCo
Corrosion resistance	NdFeB	AlNiCo	Ferrite
Resistance to demagnetization	AlNiCo	Ferrite	SmCo
Mechanical strength	Ferrite	NdFeB	AlNiCo
Temperature coefficient	AlNiCo	SmCo	Ferrite
Magnetic stability at high temperatures	NdFeB	Ferrite	SmCo