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MP 22x6x10 / N38 - ring magnet

ring magnet

Catalog no 030394

GTIN: 5906301812319

Diameter [±0,1 mm]

22 mm

internal diameter Ø [±0,1 mm]

6 mm

Height [±0,1 mm]

10 mm

Weight

37.7 g

Magnetization Direction

↑ axial

Load capacity

3.31 kg / 32.46 N

Magnetic Induction

175.75 mT

Coating

[NiCuNi] nickel

13.95 ZŁ with VAT / pcs + price for transport

11.34 ZŁ net + 23% VAT / pcs

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MP 22x6x10 / N38 - ring magnet

Specification/characteristics MP 22x6x10 / N38 - ring magnet

properties

values

Cat. no.

030394

GTIN

5906301812319

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter

22 mm [±0,1 mm]

internal diameter Ø

6 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

37.7 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

3.31 kg / 32.46 N

Magnetic Induction ~ ?

175.75 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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Neodymium magnets MP 22x6x10 / N38 in a ring-shaped form are frequently used in various industries due to their specific properties. Thanks to a powerful magnetic field of 3.31 kg, which can be described as lifting capacity, they are very helpful in applications that require strong magnetism in a compact space. Applications of MP 22x6x10 / N38 magnets include electrical mechanisms, generating systems, audio systems, and many other devices that use magnets for producing motion or storing energy. Despite their significant strength, they have a relatively low weight of 37.7 grams, which makes them more convenient to use compared to bulkier alternatives.

The operation of ring magnets results from their unique atomic structure. Their properties arise from a controlled production process, including sintering and magnetization, which allows for generating a strong and precise magnetic field. This makes them perfect for devices such as stepper motors or industrial robots. Moreover, ring magnets are resistant to demagnetization.

Ring magnets have a wide range of applications in many industries, 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, and precision in generating the magnetic field. Thanks to their ring shape allows for effective use in devices such as motors or speakers. Moreover, these magnets are significantly stronger and more versatile than ferrite counterparts, making them an ideal choice in the automotive, electronics, and medical industries.

Thanks to their resistance to high temperatures, ring magnets operate reliably even in tough conditions. They do not lose their magnetic properties, as long as the temperature does not exceed the Curie point. They are more resistant to loss of magnetism than traditional ferrite magnets. Because of this, they are ideal for applications in the automotive industry, robotics, and devices requiring operation in changing or extreme environmental conditions.

A neodymium magnet of class N50 and N52 is a strong and powerful magnetic product in the form of a ring, that offers strong holding power and universal application. Attractive price, availability, durability and versatility.

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

They virtually do not lose strength, because even after ten years, the performance loss is only ~1% (based on calculations),
They are extremely resistant to demagnetization caused by external magnetic sources,
In other words, due to the metallic gold coating, the magnet obtains an aesthetic appearance,
Magnetic induction on the surface of these magnets is impressively powerful,
Neodymium magnets are known for very high magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the shape),
The ability for accurate shaping or adjustment to specific needs – neodymium magnets can be manufactured in multiple variants of geometries, which enhances their versatility in applications,
Significant impact in advanced technical fields – they find application in computer drives, electric motors, medical equipment or even other advanced devices,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in compact dimensions, which makes them ideal in small systems

Disadvantages of rare earth magnets:

They are prone to breaking when subjected to a sudden impact. If the magnets are exposed to external force, we recommend in a steel housing. The steel housing, in the form of a holder, protects the magnet from damage and additionally strengthens its overall robustness,
They lose power at extreme temperatures. Most neodymium magnets experience permanent reduction in strength when heated above 80°C (depending on the shape and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
Due to corrosion risk in humid conditions, it is recommended to use sealed magnets made of synthetic coating for outdoor use,
Limited ability to create complex details in the magnet – the use of a magnetic holder is recommended,
Potential hazard related to magnet particles may arise, in case of ingestion, which is crucial in the protection of children. Furthermore, tiny components from these devices can complicate medical imaging if inside the body,
Higher purchase price is one of the drawbacks compared to ceramic magnets, especially in budget-sensitive applications

Handle Neodymium Magnets with Caution

Magnets should not be treated as toys. Therefore, it is not recommended for youngest children to have access to them.

Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

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

Neodymium magnets generate strong magnetic fields that can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also damage videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

Keep neodymium magnets away from people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Neodymium magnets are the most powerful, most remarkable magnets on the planet, and the surprising force between them can shock you at first.

On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.

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

Magnets attract each other within a distance of several to around 10 cm from each other. Don't put your fingers in the path of magnet attraction, because a serious injury may occur. Depending on how huge the neodymium magnets are, they can lead to a cut or alternatively a fracture.

Dust and powder from neodymium magnets are highly flammable.

Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.

Neodymium magnets can become demagnetized at high temperatures.

While Neodymium magnets can lose their magnetic properties at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

The magnet coating is made of nickel, so be cautious if you have an allergy.

Studies show a small percentage of people have allergies to certain metals, including 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.

Keep neodymium magnets as far away as possible from GPS and smartphones.

Magnetic fields can interfere with compasses and magnetometers used in aviation and maritime navigation, as well as internal compasses of smartphones and GPS devices. There are neodymium magnets in every smartphone, for example, in the microphone and speakers.

Neodymium magnetic are incredibly delicate, they easily crack and can crumble.

Magnets made of neodymium are extremely delicate, and by joining them in an uncontrolled manner, they will crumble. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of collision between the magnets, small metal fragments can be dispersed in different directions.

Caution!

Please see the article - What danger lies in neodymium magnets? You will learn how to handle them properly.