← previous

Product available shipping tomorrow

MP 20x8x6 / N38 - ring magnet

ring magnet

Catalog no 030189

GTIN: 5906301812067

Diameter [±0,1 mm]

20 mm

internal diameter Ø [±0,1 mm]

8 mm

Height [±0,1 mm]

6 mm

Weight

16.96 g

Magnetization Direction

↑ axial

Load capacity

2.74 kg / 26.87 N

Magnetic Induction

196.23 mT

Coating

[NiCuNi] nickel

5.17 ZŁ with VAT / pcs + price for transport

4.20 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

4.20 ZŁ

5.17 ZŁ

price from 143 pcs

4.20 ZŁ

5.17 ZŁ

price from 596 pcs

4.20 ZŁ

5.17 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Call us now +48 22 499 98 98 or get in touch through our online form our website.
Strength and shape of a neodymium magnet can be reviewed with our online calculation tool.

Same-day shipping for orders placed before 14:00.

MP 20x8x6 / N38 - ring magnet

Specification/characteristics MP 20x8x6 / N38 - ring magnet

properties

values

Cat. no.

030189

GTIN

5906301812067

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter

20 mm [±0,1 mm]

internal diameter Ø

8 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

16.96 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

2.74 kg / 26.87 N

Magnetic Induction ~ ?

196.23 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

Shopping tips

Produkt dostępny wysyłka jutro!

XT-5 magnetyzery do silników - DIESEL + powietrze - XT-5 magnetizer

94.99 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MPL 20x20x20 / N38 - lamellar magnet

31.98 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread

17.98 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MPL 17x17x3 / N38 - lamellar magnet

4.71 ZŁ / pcs

Neodymium magnets MP 20x8x6 / N38 in a ring-shaped form are frequently used in various industries due to their unique properties. Thanks to a powerful magnetic field of 2.74 kg, which can be described as force, they are very helpful in applications that require high magnetic power in a compact space. Applications of MP 20x8x6 / N38 magnets include electrical mechanisms, generators, audio systems, and several other devices that use magnets for producing motion or storing energy. Despite their powerful strength, they have a comparatively low weight of 16.96 grams, which makes them more convenient to use compared to heavier 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. Additionally, ring magnets are resistant to demagnetization.

They are used in various fields of technology and industry, such as electronics, e.g., in the production of speakers or electric motors, the automotive industry, e.g., in the construction of electric motors, and medical equipment, e.g., in scanning devices. Their ability to work in high temperatures and precise magnetic field control makes them ideal for technologically advanced applications.

Ring magnets stand out extraordinary pulling power, 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, 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. Their magnetic properties remain stable, as long as the temperature does not exceed the Curie point. Compared to other types of magnets, ring magnets show greater resistance to demagnetization. Because of this, they are ideal for applications in the automotive industry, robotics, and devices requiring operation in changing or extreme environmental conditions.

A ring magnet N52 and N50 is a strong and powerful magnetic piece shaped like a ring, featuring high force and universal applicability. Very good price, availability, durability and universal usability.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from their notable magnetism, neodymium magnets have these key benefits:

They do not lose their power nearly 10 years – the loss of lifting capacity is only ~1% (according to tests),
They are very resistant to demagnetization caused by external magnetic sources,
Thanks to the polished finish and gold coating, they have an aesthetic appearance,
The outer field strength of the magnet shows remarkable magnetic properties,
These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to profile),
Thanks to the flexibility in shaping and the capability to adapt to individual requirements, neodymium magnets can be created in various configurations, which broadens their functional possibilities,
Significant impact in modern technologies – they are used in hard drives, electric motors, diagnostic apparatus as well as other advanced devices,
Compactness – despite their small size, they generate strong force, making them ideal for precision applications

Disadvantages of neodymium magnets:

They are fragile when subjected to a powerful impact. If the magnets are exposed to physical collisions, they should be placed in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from cracks , and at the same time enhances its overall durability,
Magnets lose power when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible power drop (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,
They rust in a damp environment. For outdoor use, we recommend using waterproof magnets, such as those made of non-metallic materials,
Using a cover – such as a magnetic holder – is advised due to the limitations in manufacturing complex structures directly in the magnet,
Health risk linked to microscopic shards may arise, in case of ingestion, which is significant in the family environments. It should also be noted that minuscule fragments from these assemblies may hinder health screening after being swallowed,
Due to the price of neodymium, their cost is considerably higher,

Handle Neodymium Magnets with Caution

Neodymium Magnets can attract to each other due to their immense internal force, causing the skin and other body parts to get pinched and resulting in significant injuries.

If joining of neodymium magnets is not controlled, at that time they may crumble and also crack. Remember not to approach them to each other or hold them firmly in hands at a distance less than 10 cm.

Do not place neodymium magnets near a computer HDD, TV, and wallet.

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.

Magnets are not toys, children should not play with them.

Remember that neodymium magnets are not toys. Be cautious and make sure no child plays with them. In the case of swallowing multiple magnets simultaneously, they can attract to each other through the intestinal walls. In the worst case scenario, this can lead to death.

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

Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional disruption to the magnets.

Neodymium magnetic are highly fragile, they easily crack as well as can become damaged.

Neodymium magnetic are highly fragile, and by joining them in an uncontrolled manner, they will crack. Neodymium magnetic are made of metal and coated with a shiny nickel, but they are not as durable as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.

Keep neodymium magnets as far away as possible from 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 become demagnetized at high temperatures.

Whilst Neodymium magnets can demagnetize 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.

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

The magnet is coated with nickel. Therefore, exercise caution 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Exercise caution!

So that know how powerful neodymium magnets are and why they are so dangerous, read the article - Dangerous powerful neodymium magnets.