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Product available shipping tomorrow! Bestseller

MP 8x6/3.5x3 / N38 - neodymium magnet

ring magnet

catalog number 030206

GTIN: 5906301812234

5.0

external diameter Ø

8 mm [±0,1 mm]

internal diameter Ø

6/3.5 mm [±0,1 mm]

height

3 mm [±0,1 mm]

magnetizing direction

↑ axial

capacity ~

0.81 kg / 7.94 N

magnetic induction ~

162.10 mT / 1,621 Gs

max. temperature

≤ 80 °C

0.70 PLN gross price (including VAT) / pcs +

0.57 PLN net price + 23% VAT / pcs

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Give us a call tel: +48 888 99 98 98 or get in touch through form on our website. You can check the lifting capacity as well as the appearance of neodymium magnets in our force calculator magnetic mass calculator

Orders placed by 2:00 PM will be shipped on the same business day.

Specification: ring magnet 8x6/3.5x3 / N38 ↑ axial

Characteristics: ring magnet 8x6/3.5x3 / N38 ↑ axial

Properties

Values

catalog number

030206

GTIN

5906301812234

production / distribution

Dhit sp. z o.o.

country of origin

Poland / China / Germany

customs code

85059029

external diameter Ø

8 mm [±0,1 mm]

internal diameter Ø

6/3.5 mm [±0,1 mm]

height

3 mm [±0,1 mm]

magnetizing direction ?

↑ axial

capacity ~ ?

0.81 kg / 7.94 N

magnetic induction ~ ?

162.10 mT / 1,621 Gs

max. temperature ?

≤ 80 °C

coating type ?

[NiCuNi] nickel

weight

0.73 g

execution tolerance

± 0.1 mm

Magnetic properties of the material N38

material characteristics N38

Properties

Values

units

remenance Br [Min. - Max.] ?

12.2-12.6

kGs

remenance Br [Min. - Max.] ?

1220-1260

coercivity bHc ?

10.8-11.5

kOe

coercivity bHc ?

860-915

kA/m

actual internal force iHc

≥ 12

kOe

actual internal force iHc

≥ 955

kA/m

energy density [Min. - Max.]

36-38

BH max MGOe

energy density [Min. - Max.]

287-303

BH max KJ/m

max. temperature

≤ 80

°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B

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

Due to unique properties, neodymium element MP 8x6/3.5x3 / N38 in a ring-shaped form finds extensive use in various industries. Thanks to a powerful magnetic field of 0.81 kg, which can be described as lifting capacity, they are key in applications that require strong magnetism in a compact space. Applications of MP 8x6/3.5x3 / N38 magnets include electrical mechanisms, generating systems, sound devices, and many other devices that use magnets for generating motion or energy storage. Despite their powerful strength, they have a relatively low weight of 0.73 grams, which makes them more practical compared to heavier alternatives.

List recommended items

Product available shipping tomorrow!

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

17.98 PLN / pcs

Product available shipping tomorrow!

conical magnetic holder 25x10.5x5.5x8 / N38

11.48 PLN / pcs

Product available shipping tomorrow! Bestseller

cylindrical magnet 12.5x2 / N38 ↑ axial

0.75 PLN / pcs

Product available shipping tomorrow!

badge holder 45x13x5 [M301] / N38

2.52 PLN / pcs

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from immense strength, neodymium magnets have the following advantages:

They do not lose power over time. After 10 years, their strength decreases by only ~1% (theoretically),
They are exceptionally resistant to demagnetization caused by an external magnetic field,
Thanks to the shiny finish and nickel, gold, or silver coating, they have an aesthetic appearance,
They have very high magnetic induction on the surface of the magnet,
Magnetic neodymium magnets are characterized by very high magnetic induction on the surface of the magnet and can operate (depending on the shape) even at temperatures of 230°C or higher...
Due to the option of accurate forming and adaptation to individual needs – neodymium magnets can be produced in a wide range of shapes and sizes, which enhances their versatility in applications.
Key role in the industry of new technologies – find application in computer drives, electric drive mechanisms, medical equipment or very advanced devices.

Disadvantages of neodymium magnets:

They can break when subjected to a powerful impact. If the magnets are exposed to impacts, we recommend using magnets in a protective case. The steel housing in the form of a holder protects the magnet from impacts, and at the same time increases its overall strength,
High temperatures can reduce the strength of neodymium magnets. Typically, after heating above 80°C, most of them experience a permanent loss in strength (although it is dependent on the shape and size). To prevent this, we offer special magnets marked with the symbol [AH], which are highly resistant to high temperatures. They can operate even at temperatures up to 230°C, making them an ideal solution for applications requiring high-temperature operation,
Due to their susceptibility to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic, or other moisture-resistant materials when using them outdoors,
Limited ability to create threads or complex shapes in the magnet - the use of a housing is recommended - magnetic holder
Potential hazard to health from tiny fragments of magnets are risky, if swallowed, which is crucial in the context of children's health. Additionally, tiny parts of these magnets can be problematic in medical diagnosis when they are in the body.

Be Cautious with Neodymium Magnets

Neodymium magnets are known for their fragility, which can cause them to shatter.

Neodymium magnets are characterized by significant fragility. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard 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.

Neodymium magnets are not recommended for people with pacemakers.

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.

Neodymium magnets can demagnetize at high temperatures.

In certain circumstances, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

Neodymium magnets bounce and also touch each other mutually within a radius of several to almost 10 cm from each other.

Avoid bringing neodymium magnets close to a phone or GPS.

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.

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.

It is important to keep neodymium magnets away from youngest children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

Neodymium magnets are the most powerful magnets ever created, and their power can surprise you.

To handle magnets properly, it is best to familiarize yourself with our information beforehand. This will help you avoid significant harm to your body and the magnets themselves.

You should maintain neodymium magnets at a safe distance from the wallet, computer, and TV.

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, or other devices. They can also destroy devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

The magnet coating contains nickel, so be cautious if you have a nickel 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.

To illustrate why neodymium magnets are so dangerous, see the article - How very dangerous are very powerful neodymium magnets?.

MP 8x6/3.5x3 / N38 - neodymium magnet

ring magnet

Specification: ring magnet 8x6/3.5x3 / N38 ↑ axial

Magnetic properties of the material N38

Physical properties of sintered neodymium magnets Nd2Fe14B

List recommended items

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

conical magnetic holder 25x10.5x5.5x8 / N38

cylindrical magnet 12.5x2 / N38 ↑ axial

badge holder 45x13x5 [M301] / N38

Advantages as well as disadvantages of neodymium magnets NdFeB.

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B