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MW 6x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010094

GTIN: 5906301810933

Diameter Ø [±0,1 mm]

6 mm

Height [±0,1 mm]

6 mm

Weight

1.27 g

Magnetization Direction

↑ axial

Load capacity

1.99 kg / 19.52 N

Magnetic Induction

553.38 mT

Coating

[NiCuNi] nickel

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0.57 ZŁ net + 23% VAT / pcs

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MW 6x6 / N38 - cylindrical magnet

Specification/characteristics MW 6x6 / N38 - cylindrical magnet

properties

values

Cat. no.

010094

GTIN

5906301810933

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

6 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

1.27 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

1.99 kg / 19.52 N

Magnetic Induction ~ ?

553.38 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 Cylindrical Magnets i.e. MW 6x6 / N38 are magnets created of neodymium in a cylinder form. They are valued for their very strong magnetic properties, which outperform traditional ferrite magnets. Thanks to their power, they are frequently employed in products that need powerful holding. The standard temperature resistance of these magnets is 80°C, but for magnets in a cylindrical form, this temperature increases with the growth of the magnet. Moreover, various special coatings, such as nickel, gold, or chrome, are frequently applied to the surface of neodymium magnets to enhance their durability to corrosion. The cylindrical shape is as well one of the most popular among neodymium magnets. The magnet with the designation MW 6x6 / N38 and a magnetic lifting capacity of 1.99 kg has a weight of only 1.27 grams.

Cylindrical neodymium magnets, also known as Nd₂Fe₁₄B, are the strongest known material for magnet production. Their production process is complicated and includes sintering special neodymium alloys along with other metals such as iron and boron. After a series of processes, such as heat and mechanical treatment, the magnets are made available for use in many applications, such as electric motors, audio-video equipment, and in the automotive and aerospace industries.
Moreover, although neodymium is a component of the strongest magnets, they are susceptible to corrosion in humid environments. Therefore, they are coated with a thin layer of gold to protect them from corrosion. It's worth noting that NdFeB neodymium magnets are about 13% lighter than SmCo magnets and, despite their power, easily break, which requires special caution during their handling. For this reason, 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 damage data on magnetic cards and hard drives, although data deletion using a neodymium magnet is not guaranteed.

In terms of purchasing of cylindrical neodymium magnets, many companies offer such products. One of the recommended suppliers is our company Dhit, located in Ożarów Mazowiecki, the address is available directly in the contact tab. It is recommended to check the website for the latest information as well as promotions, and before visiting, we recommend calling.

Although, cylindrical neodymium magnets are practical in various applications, they can also pose certain dangers. Because of their significant magnetic power, they can pull metallic objects with uncontrolled force, which can lead to crushing skin or other materials, especially fingers. One should not use neodymium magnets near electronic devices or data storage devices, such as credit cards, as they can destroy these devices in terms of magnetic recording. Furthermore, neodymium magnets are susceptible to corrosion in humid environments, thus they are coated with a thin protective layer. In short, although they are handy, one should handle them with due caution.

Neodymium magnets, with the formula neodymium-iron-boron, are at this time the strongest available magnets on the market. They are produced through a advanced sintering process, which involves fusing specific alloys of neodymium with additional metals and then shaping and heat treating. Their unmatched magnetic strength comes from the exceptional production technology and chemical structure.
In terms of properties in different environments, neodymium magnets are sensitive to corrosion, especially in humid conditions. Therefore, they are often covered with thin coatings, such as nickel, to shield them from external factors and extend their lifespan. Temperatures exceeding 130°C can result in a loss of their magnetic properties, although there are specific types of neodymium magnets that can withstand temperatures up to 230°C.
As for potential dangers, it is important to avoid using neodymium magnets in acidic conditions, basic conditions, organic or solvent environments, unless they are adequately insulated. Additionally, their use is not recommended in wet conditions, oil, or in an atmosphere containing hydrogen, as they may forfeit their magnetic strength.

A cylindrical magnet of class N52 and N50 is a strong and extremely powerful metallic component in the form of a cylinder, providing strong holding power and universal applicability. Good price, availability, ruggedness and broad range of uses.

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

They have unchanged lifting capacity, and over around ten years their performance decreases symbolically – ~1% (in testing),
Their ability to resist magnetic interference from external fields is notable,
In other words, due to the metallic gold coating, the magnet obtains an professional appearance,
They exhibit extremely high levels of magnetic induction near the outer area of the magnet,
Thanks to their enhanced temperature resistance, they can operate (depending on the geometry) even at temperatures up to 230°C or more,
With the option for tailored forming and targeted design, these magnets can be produced in multiple shapes and sizes, greatly improving engineering flexibility,
Important function in advanced technical fields – they are utilized in HDDs, electric drives, clinical machines or even technologically developed systems,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in compact dimensions, which makes them useful in small systems

Disadvantages of magnetic elements:

They are fragile when subjected to a heavy impact. If the magnets are exposed to physical collisions, they should be placed in a steel housing. The steel housing, in the form of a holder, protects the magnet from damage , and at the same time strengthens its overall robustness,
They lose magnetic force at extreme temperatures. Most neodymium magnets experience permanent loss in strength when heated above 80°C (depending on the form 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 advisable to use sealed magnets made of protective material for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the challenges in manufacturing threads directly in the magnet,
Possible threat due to small fragments may arise, especially if swallowed, which is important in the family environments. Moreover, minuscule fragments from these products have the potential to interfere with diagnostics after being swallowed,
Higher purchase price is an important factor to consider compared to ceramic magnets, especially in budget-sensitive applications

Safety Precautions

Neodymium magnets are over 10 times stronger than ferrite magnets (the ones in speakers), 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.

Keep neodymium magnets away from GPS and smartphones.

Neodymium magnets are a source of intense 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.

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

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

Avoid contact with neodymium magnets if you have a nickel allergy.

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 can become demagnetized at high temperatures.

Whilst 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 are highly susceptible to damage, leading to shattering.

Neodymium magnets are fragile as well as will break if allowed to collide with each other, even from a distance of a few centimeters. 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.

Neodymium magnets should not be around children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.

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

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

Magnetic fields generated by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other similar devices. They can also damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Be careful!

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