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Neodymium (Rare-Earth) Magnets

Neodymium (NdFeB) Magnets are known as extra strong magnets with high magnetic performance

Neodymium iron boron, also known as NdFeB magnet, is a tetragonal crystal formed by neodymium, iron and boron (Nd2Fe14B). The magnetic energy product (BHmax) of this magnet is greater than that of the samarium cobalt magnet, which was the largest magnet in the world at that time. Neodymium magnet is the most powerful permanent magnet and the most commonly used rare earth magnet. As a part of the rare earth magnet family, neodymium magnets have good magnetic performance, which makes them be they the first choice for many consumer, commercial, industrial and technological applications.

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Types of Neodymium (Rare-Earth) Magnets

Full Range Rare-Earth Neodymium Magnets for Sale

In terms of shape, we have round, ring, square, countersunk, spherical, cylinder and other standard shapes of neodymium magnets for sale.
In terms of application, we, professional in neodymium magnets including n52 arc magnets and neodymium channel magnets, have strong neodymium magnets for mounting, fishing, holding and hanging, as well as high-performance neodymium magnets for other different high-tech fields.
In terms of size, we have mini very strong magnets for sale as small as 0.5mm and super large neodymium magnets as large as 250mm.
In terms of surface treatment, in addition to the high power magnets for sale with normal electroplating coating, we also have plastic, rubber, PVC and Teflon coated neodymium for sale.
In short, we have a very full range of strong neodymium magnets for sale.

Custom Neodymium Magnets

With China's high-quality magnetic material resources, an experienced team of engineers and advanced processing equipment, we can customize special and irregular neodymium magnets, such as epoxy coated arc magnets and neodymium cone magnet, to meet your exact specifications. If you need special custom neodymium magnets or magnetic components, please contact us and send us a quotation request. We will help you determine the most economical solution for your project.

Magnetic Property of Sintere Neodymium Magnetic Material

Material	Remanence (Br)		HcB		HcJ		(B-H)max		Max.Temp.
Type (Grade)	(KGs)	(mT)	(Koe)	(KA/m)	(Koe)	(KA/m)	(MGOe)	(KJ/m3)	℃
N35	11.7-12.2	1170-1220	≥10.9	≥868	≥12	≥955	33-36	263-287	80℃
N38	12.2-12.5	1220-1250	≥11.3	≥899	≥12	≥955	36-39	287-310	80℃
N40	12.5-12.8	1250-1280	≥11.4	≥907	≥12	≥955	38-41	302-326	80℃
N42	12.8-13.2	1280-1320	≥11.5	≥915	≥12	≥955	40-43	318-342	80℃
N45	13.2-13.8	1320-1380	≥11.6	≥923	≥12	≥955	43-46	342-366	80℃
N48	13.8-14.2	1380-1420	≥10.5	≥836	≥12	≥955	46-49	366-390	80℃
N50	14.0-14.5	1400-1450	≥10.0	≥796	≥11	≥876	48-51	382-406	80℃
N52	14.3-14.8	1430-1480	≥10.0	≥796	≥11	≥876	50-53	398-422	60℃
N54	14.5-15.1	1450-1510	≥10.0	≥796	≥11	≥876	50-53	398-422	60℃
33M	11.3-11.7	1130-1170	≥10.5	≥836	≥14	≥1114	31-33	247-263	100℃
35M	11.7-12.2	1170-1220	≥10.9	≥868	≥14	≥1114	33-36	263-287	100℃
38M	12.2-12.5	1220-1250	≥11.3	≥899	≥14	≥1114	36-39	287-310	100℃
40M	12.5-12.8	1250-1280	≥11.6	≥923	≥14	≥1114	38-41	302-326	100℃
42M	12.8-13.2	1280-1320	≥12.0	≥955	≥14	≥1114	40-43	318-342	100℃
45M	13.2-13.8	1320-1380	≥12.5	≥995	≥14	≥1114	43-46	342-366	100℃
48M	13.6-14.3	1360-1430	≥12.9	≥1027	≥14	≥1114	46-49	366-390	100℃
50M	14.0-14.5	1400-1450	≥13.0	≥1033	≥14	≥1114	48-51	382-406	100℃
35H	11.7-12.2	1170-1220	≥10.9	≥868	≥17	≥1353	33-36	263-287	120℃
38H	12.2-12.5	1220-1250	≥11.3	≥899	≥17	≥1353	36-39	287-310	120℃
40H	12.5-12.8	1250-1280	≥11.6	≥923	≥17	≥1353	38-41	302-326	120℃
42H	12.8-13.2	1280-1320	≥12.0	≥955	≥17	≥1353	40-43	318-342	120℃
45H	13.2-13.6	1320-1360	≥12.1	≥963	≥17	≥1353	43-46	342-366	120℃
48H	13.7-14.3	1370-1430	≥12.5	≥995	≥17	≥1353	46-49	366-390	120℃
35SH	11.7-12.2	1170-1220	≥11.0	≥876	≥20	≥1592	33-36	263-287	150℃
38SH	12.2-12.5	1220-1250	≥11.4	≥907	≥20	≥1592	36-39	287-310	150℃
40SH	12.5-12.8	1250-1280	≥11.8	≥939	≥20	≥1592	38-41	302-326	150℃
42SH	12.8-13.2	1280-1320	≥12.4	≥987	≥20	≥1592	40-43	318-342	150℃
45SH	13.2-13.8	1320-1380	≥12.6	≥1003	≥20	≥1592	43-46	342-366	150℃
28UH	10.2-10.8	1020-1080	≥9.6	≥764	≥25	≥1990	26-29	207-231	180℃
30UH	10.8-11.3	1080-1130	≥10.2	≥812	≥25	≥1990	28-31	223-247	180℃
33UH	11.3-11.7	1130-1170	≥10.7	≥852	≥25	≥1990	31-34	247-271	180℃
35UH	11.8-12.2	1180-1220	≥10.8	≥860	≥25	≥1990	33-36	263-287	180℃
38UH	12.2-12.5	1220-1250	≥11.0	≥876	≥25	≥1990	36-39	287-310	180℃
40UH	12.5-12.8	1250-1280	≥11.3	≥899	≥25	≥1990	38-41	302-326	180℃
28EH	10.4-10.9	1040-1090	≥9.8	≥780	≥30	≥2388	26-29	207-231	200℃
30EH	10.8-11.3	1080-1130	≥10.2	≥812	≥30	≥2388	28-31	223-247	200℃
33EH	11.3-11.7	1130-1170	≥10.5	≥836	≥30	≥2388	31-34	247-271	200℃
35EH	11.7-12.2	1170-1220	≥11.0	≥876	≥30	≥2388	33-36	263-287	200℃
38EH	12.2-12.5	1220-1250	≥11.3	≥899	≥30	≥2388	36-39	287-310	200℃
28AH	10.4-10.9	1040-1090	≥9.9	≥787	≥33	≥2642	26-29	207-231	230℃
30AH	10.8-11.3	1080-1130	≥10.3	≥819	≥33	≥2642	28-31	223-247	230℃
33AH	11.3-11.7	1130-1170	≥10.6	≥843	≥33	≥2642	31-34	247-271	230℃

Note:

The above-mentioned magnetic performance dates are all given under room temperature.
The above-mentioned maximum working temperature of neodymium magnets is changeable due to the ratio of length and diameter,surface treatment and environmental factors.
All above mentioned magnetic property dates are just for reference.

Manufacturing Process of Neodymium Magnets

Questions and Answers About Neodymium Magnets

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Why are neodymium magnets so strong?

Neodymium rare earth magnets are considered the strongest magnets because they have high saturation magnetization and the highest magnetic energy product. One of the main benefits of using neodymium magnets is that the size of the whole equipment can be minimized.

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How long can neodymium magnets keep the magnetism?

As long as the physical characteristics of neodymium magnets remain unchanged and are not affected by demagnetization (such as high temperature, reverse magnetic field, radiation, etc.), the loss of magnetic flux density of neodymium magnet may be less than 1% within 10 years.

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What are the main characteristics of neodymium magnets over samarium cobalt magnets?

Compared with other rare earth magnetic materials such as samarium cobalt magnets, neodymium magnets are not easy to crack and break, and the cost is low. However, they are more sensitive to temperature. For this critical application, samarium cobalt may be a better choice because its magnetism is very stable at high temperature.

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What shapes are available for neodymium magnets?

Neodymium magnetic material can be made into many shapes,normally include disc magnets,ring&tube magnets,cylinder magnets,cone magnets,countersunk magnets,cube magnet,sphere magnets,rectangular&square magnet blocks.For special shapes that not shown on the website,please contact us for customizing.

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Do neodymium magnets need surface coating?

Yes,neodymium magnets must be done with surface coating,any neodymium magnets without surface coating may rust in humid conditions.

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What are permanent magnets?

The magnets which have magnetic fields that do not turn on and off like electromagnets are known as permanent magnets. We supply all kinds of permanent magnets, such as neodymium magnets, AlNiCo magnets, SmCo magnets, ferrite magnets and rubber magnets. Permanent magnets represent the majority of magnetic materials available today.

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How are permanent magnets rated?

Permanent magnets are rated by their residual induction, coercive force & maximum energy product. This refers to the maximum strength that the magnetic material can be magnetized.

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Do we need safety precautions when using neodymium magnets?

Neodymium magnets are hard, quite fragile and have high magnetic strength. They can bite together strongly, so please make sure that all personnel operating these magnets know to operate with care to avoid injury. If they fall or get stuck together, they can also break or break, so please be very careful when handling these powerful magnets!