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MW 6x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010092

GTIN: 5906301810919

Diameter Ø [±0,1 mm]

6 mm

Height [±0,1 mm]

2 mm

Weight

0.42 g

Magnetization Direction

↑ axial

Load capacity

0.66 kg / 6.47 N

Magnetic Induction

343.37 mT

Coating

[NiCuNi] nickel

0.26 ZŁ with VAT / pcs + price for transport

0.21 ZŁ net + 23% VAT / pcs

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MW 6x2 / N38 - cylindrical magnet

Specification/characteristics MW 6x2 / N38 - cylindrical magnet

properties

values

Cat. no.

010092

GTIN

5906301810919

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

6 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

0.42 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

0.66 kg / 6.47 N

Magnetic Induction ~ ?

343.37 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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Cylindrical Neodymium Magnets min. MW 6x2 / N38 are magnets made of neodymium in a cylinder form. They are known for their very strong magnetic properties, which outperform ordinary iron magnets. Because of their strength, they are frequently employed in products that require strong adhesion. The typical temperature resistance of such magnets is 80 degrees C, but for magnets in a cylindrical form, this temperature increases with their height. Additionally, various special coatings, such as nickel, gold, or chrome, are frequently applied to the surface of neodymium magnets to enhance their resistance to corrosion. The cylindrical shape is as well one of the most popular among neodymium magnets. The magnet with the designation MW 6x2 / N38 with a magnetic force 0.66 kg weighs only 0.42 grams.

Cylindrical neodymium magnets, often referred to as Nd₂Fe₁₄B, are the strongest known material for magnet production. The technology of their production is complicated and includes sintering special neodymium alloys along with other metals such as iron and boron. After appropriate processing, such as heat and mechanical treatment, the magnets become ready for use in varied applications, including electric motors, audio-video equipment, and in the automotive and aerospace industries.
Moreover, although neodymium is part of the strongest magnets, they are susceptible to corrosion in humid environments. Therefore, they are coated with a coating of gold-nickel to protect them from corrosion. Interestingly that NdFeB neodymium magnets are about 13% lighter than SmCo magnets and, despite their power, are brittle, which requires care during their handling. Therefore, any mechanical processing should be done before they are magnetized.

In terms of safety, there are many recommendations regarding the use of these magnets. They should not be used in acidic, basic, organic environments or in solvents, as well as in water or oil. Additionally, they can distort data on magnetic cards and hard drives, although data deletion using a neodymium magnet is not always certain.

In terms of purchasing of cylindrical neodymium magnets, several enterprises offer such products. One of the recommended suppliers is our company Dhit, located in Ożarów Mazowiecki, the address can be found directly in the contact tab. It's always worth visit the website for the current information as well as promotions, and before visiting, we recommend calling.

Although, cylindrical neodymium magnets are very practical in various applications, they can also constitute certain dangers. Due to their strong magnetic power, they can pull metallic objects with great force, which can lead to damaging skin as well as other surfaces, especially be careful with fingers. One should not use neodymium magnets near electronic devices or data storage devices, such as credit cards, as they can damage these devices in terms of magnetic recording. Furthermore, neodymium magnets are prone to corrosion in humid environments, therefore they are coated with a thin protective layer. In short, although they are very useful, one should handle them with due caution.

Neodymium magnets, with the formula Nd₂Fe₁₄B, are presently the strongest available magnets on the market. They are produced through a complicated sintering process, which involves melting specific alloys of neodymium with additional metals and then forming and thermal processing. Their powerful magnetic strength comes from the specific production technology and chemical composition.
In terms of properties in different environments, neodymium magnets are susceptible to corrosion, especially in humid conditions. Therefore, they are often coated with coatings, such as silver, to shield them from environmental factors and extend their lifespan. High temperatures exceeding 130°C can result in a loss of their magnetic strength, although there are specific types of neodymium magnets that can withstand temperatures up to 230°C.
As for dangers, it is important to avoid using neodymium magnets in acidic conditions, basic environments, organic or solvent environments, unless they are insulated. Additionally, their use is not recommended in water, oil, or in an environment containing hydrogen, as they may lose their magnetic properties.

A cylindrical magnet of class N50 and N52 is a powerful and strong metallic component with the shape of a cylinder, featuring high force and broad usability. Attractive price, 24h delivery, durability and universal usability.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their long-term stability, neodymium magnets provide the following advantages:

They do not lose their strength nearly 10 years – the reduction of power is only ~1% (according to tests),
They protect against demagnetization induced by ambient magnetic influence remarkably well,
Because of the lustrous layer of nickel, the component looks aesthetically refined,
They possess intense magnetic force measurable at the magnet’s surface,
These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to build),
With the option for tailored forming and personalized design, these magnets can be produced in multiple shapes and sizes, greatly improving application potential,
Significant impact in modern technologies – they serve a purpose in computer drives, electric motors, diagnostic apparatus as well as other advanced devices,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in small dimensions, which makes them useful in compact constructions

Disadvantages of magnetic elements:

They may fracture when subjected to a powerful impact. If the magnets are exposed to mechanical hits, it is advisable to use in a metal holder. The steel housing, in the form of a holder, protects the magnet from damage while also increases its overall strength,
They lose power at high temperatures. Most neodymium magnets experience permanent decline in strength when heated above 80°C (depending on the dimensions and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
They rust in a wet environment. For outdoor use, we recommend using sealed magnets, such as those made of rubber,
Limited ability to create threads in the magnet – the use of a external casing is recommended,
Health risk due to small fragments may arise, especially if swallowed, which is important in the family environments. Furthermore, small elements from these assemblies can disrupt scanning if inside the body,
In cases of tight budgets, neodymium magnet cost may not be economically viable,

Safety Precautions

People with pacemakers are advised to avoid neodymium magnets.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. However, if the magnetic field does not affect the device, it can damage its components or deactivate the device when it is in a magnetic field.

Neodymium magnetic are especially fragile, resulting in shattering.

Neodymium magnetic are highly delicate, and by joining them in an uncontrolled manner, they will break. 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 connection between the magnets, small metal fragments can be dispersed in different directions.

Keep neodymium magnets away 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.

Comparing neodymium magnets to ferrite magnets (found in speakers), they are 10 times stronger, and their strength can surprise 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 demagnetize 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.

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 swellings.

If have a finger between or on the path of attracting magnets, there may be a large cut or even a fracture.

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.

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.

Dust and powder from neodymium magnets are flammable.

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

Make sure not to bring neodymium magnets close to the 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. They can also damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Caution!

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