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MP 10x6x4 / N38 - ring magnet

ring magnet

Catalog no 030179

GTIN: 5906301811961

Diameter [±0,1 mm]

10 mm

internal diameter Ø [±0,1 mm]

6 mm

Height [±0,1 mm]

4 mm

Weight

3.77 g

Magnetization Direction

↑ axial

Load capacity

1.37 kg / 13.44 N

Magnetic Induction

108.09 mT

Coating

[NiCuNi] nickel

0.90 ZŁ with VAT / pcs + price for transport

0.73 ZŁ net + 23% VAT / pcs

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MP 10x6x4 / N38 - ring magnet

Specification/characteristics MP 10x6x4 / N38 - ring magnet

properties

values

Cat. no.

030179

GTIN

5906301811961

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter

10 mm [±0,1 mm]

internal diameter Ø

6 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

3.77 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

1.37 kg / 13.44 N

Magnetic Induction ~ ?

108.09 mT

Coating

[NiCuNi] nickel

Manufacturing Tolerance

± 0.1 mm

Magnetic properties of material N38

properties

values

units

coercivity bHc ?

860-915

kA/m

coercivity bHc ?

10.8-11.5

kOe

energy density [Min. - Max.] ?

287-303

BH max KJ/m

energy density [Min. - Max.] ?

36-38

BH max MGOe

remenance Br [Min. - Max.] ?

12.2-12.6

kGs

remenance Br [Min. - Max.] ?

1220-1260

actual internal force iHc

≥ 955

kA/m

actual internal force iHc

≥ 12

kOe

max. temperature ?

≤ 80

°C

Physical properties of NdFeB

properties

values

units

Vickers hardness

≥550

Density

≥7.4

g/cm³

Curie Temperature TC

312 - 380

°C

Curie Temperature TF

593 - 716

°F

Specific resistance

150

μΩ⋅Cm

Bending strength

250

Mpa

Compressive strength

1000~1100

Mpa

Thermal expansion parallel (∥) to orientation (M)

(3-4) x 106

°C^-1

Thermal expansion perpendicular (⊥) to orientation (M)

-(1-3) x 10-6

°C^-1

Young's modulus

1.7 x 104

kg/mm²

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MP 10x7/3.5x3 / N38 - ring magnet

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Due to unique properties, neodymium element MP 10x6x4 / N38 in a ring form finds extensive use in various industries. Thanks to a powerful magnetic field of 1.37 kg, which can be described as lifting capacity, they are very helpful in applications that require high magnetic power in a relatively small area. Applications of MP 10x6x4 / N38 magnets include electric motors, generating systems, sound devices, and several other devices that use magnets for producing motion or energy storage. Despite their significant strength, they have a relatively low weight of 3.77 grams, which makes them more convenient to use compared to bulkier alternatives.

Ring magnets work due to their atomic structure. In the production process, neodymium atoms are arranged appropriately, which allows for generating a strong and precise magnetic field. This makes them perfect for devices such as stepper motors or industrial robots. Moreover, their resistance to high temperatures and demagnetization makes them indispensable in industry.

They are used in various fields of technology and industry, such as electronics, e.g., in the production of speakers or electric motors, automotive, where they are used in brushless electric motors, and medical equipment, e.g., in scanning devices. Their ability to work in high temperatures and precise magnetic field control makes them indispensable in challenging industrial conditions.

Their uniqueness comes from high magnetic strength, ability to work in extreme conditions, precise control of the magnetic field. Thanks to their ring shape allows for application in devices requiring concentrated magnetic fields. Moreover, these magnets are more durable than traditional ferrite magnets, which has made them popular in advanced technologies and industrial applications.

Thanks to their resistance to high temperatures, ring magnets operate reliably even in tough conditions. They do not lose their magnetic properties, until the Curie temperature is exceeded, which for neodymium magnets is around 80°C. Compared to other types of magnets, ring magnets show greater resistance to demagnetization. For this reason, they are ideal for applications in the automotive industry, robotics, and devices requiring operation in changing or extreme environmental conditions.

A neodymium ring magnet N50 and N52 is a strong and extremely powerful metallic component shaped like a ring, featuring strong holding power and universal applicability. Very good price, availability, stability and multi-functionality.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Besides their stability, neodymium magnets are valued for these benefits:

They virtually do not lose power, because even after ten years, the performance loss is only ~1% (according to literature),
Their ability to resist magnetic interference from external fields is notable,
Thanks to the glossy finish and gold coating, they have an aesthetic appearance,
Magnetic induction on the surface of these magnets is notably high,
With the right combination of materials, they reach significant thermal stability, enabling operation at or above 230°C (depending on the form),
The ability for custom shaping as well as adjustment to individual needs – neodymium magnets can be manufactured in many forms and dimensions, which enhances their versatility in applications,
Significant impact in modern technologies – they serve a purpose in HDDs, rotating machines, healthcare devices along with sophisticated instruments,
Thanks to their concentrated strength, small magnets offer high magnetic performance, in miniature format,

Disadvantages of rare earth magnets:

They are prone to breaking when subjected to a strong impact. If the magnets are exposed to mechanical hits, they should be placed in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from fracture and strengthens its overall durability,
Magnets lose power when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible field weakening (influenced by the magnet’s form). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
Magnets exposed to moisture can rust. Therefore, for outdoor applications, it's best to use waterproof types made of coated materials,
The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is not feasible,
Safety concern from tiny pieces may arise, in case of ingestion, which is significant in the context of child safety. It should also be noted that minuscule fragments from these devices have the potential to complicate medical imaging when ingested,
Due to expensive raw materials, their cost is considerably higher,

Exercise Caution with Neodymium Magnets

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

If you have a nickel allergy, avoid contact with neodymium magnets.

Studies clearly indicate a small percentage of people who suffer from metal allergies such as nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets are the strongest magnets ever invented. Their power can shock you.

Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.

Neodymium Magnets can attract to each other, pinch the skin, and cause significant injuries.

Neodymium magnets jump and touch each other mutually within a distance of several to around 10 cm from each other.

Neodymium magnets are delicate as well as can easily break as well as shatter.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. They are coated with a shiny nickel plating similar to steel, but they are not as hard. In the case of a collision between two magnets, there can be a scattering of small sharp metal fragments in different directions. Protecting your eyes is essential.

Do not give neodymium magnets to children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. Small magnets pose a serious choking hazard or can attract to each other in the intestines. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Do not bring neodymium magnets close to GPS and smartphones.

Neodymium magnets are a source of strong magnetic fields that cause interference with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets can demagnetize at high temperatures.

Although magnets are generally resilient, their ability to maintain their magnetic potency can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets produce strong magnetic fields that can interfere with the operation of a heart pacemaker. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.

Keep neodymium magnets away from TV, wallet, and computer HDD.

Strong magnetic fields emitted by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Exercise caution!

So you are aware of why neodymium magnets are so dangerous, read the article titled How very dangerous are very strong neodymium magnets?.