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MP 5x2.7/1.2x5 Z / N38 - ring magnet

ring magnet

Catalog no 030203

GTIN: 5906301812203

Diameter [±0,1 mm]

5 mm

internal diameter Ø [±0,1 mm]

2.7/1.2 mm

Height [±0,1 mm]

5 mm

Weight

3.59 g

Magnetization Direction

↑ axial

Load capacity

0.56 kg / 5.49 N

Magnetic Induction

56.04 mT

Coating

[NiCuNi] nickel

0.84 ZŁ with VAT / pcs + price for transport

0.68 ZŁ net + 23% VAT / pcs

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MP 5x2.7/1.2x5 Z / N38 - ring magnet

Specification/characteristics MP 5x2.7/1.2x5 Z / N38 - ring magnet

properties

values

Cat. no.

030203

GTIN

5906301812203

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter

5 mm [±0,1 mm]

internal diameter Ø

2.7/1.2 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

3.59 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

0.56 kg / 5.49 N

Magnetic Induction ~ ?

56.04 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 5x2.7/1.2x5 Z / N38 in a ring form are frequently used in various industries due to their unique properties. Thanks to a powerful magnetic field of 0.56 kg, which can be described as lifting capacity, they are key in applications that require strong magnetism in a compact space. Usage of MP 5x2.7/1.2x5 Z / N38 magnets include electric motors, generators, sound devices, and many other devices that use magnets for generating motion or storing energy. Despite their significant strength, they have a relatively low weight of 3.59 grams, which makes them more practical compared to bulkier alternatives.

Ring magnets work due to their atomic structure. In the production process, neodymium atoms are arranged appropriately, which allows for the creation of a concentrated magnetic field in a specific direction. This makes them perfect for devices such as stepper motors or industrial robots. Moreover, their resistance to high temperatures and demagnetization makes them indispensable in industry.

They are used in various fields of technology and industry, 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, precise control of the magnetic field. Thanks to their ring shape allows for application in devices requiring concentrated magnetic fields. Additionally, these magnets are significantly stronger and more versatile than ferrite counterparts, making them an ideal choice in the automotive, electronics, and medical industries.

Ring magnets perform excellently across a wide range of temperatures. They do not lose their magnetic properties, until the Curie temperature is exceeded, which for neodymium magnets is around 80°C. 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 N50 and N52 is a powerful and strong metallic component shaped like a ring, that provides high force and universal application. Good price, availability, durability and broad range of uses.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their immense pulling force, neodymium magnets offer the following advantages:

They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
They are very resistant to demagnetization caused by external magnetic sources,
In other words, due to the metallic nickel coating, the magnet obtains an professional appearance,
Magnetic induction on the surface of these magnets is notably high,
Neodymium magnets are known for exceptionally strong magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the magnetic form),
Thanks to the flexibility in shaping and the capability to adapt to specific requirements, neodymium magnets can be created in different geometries, which expands their usage potential,
Significant impact in new technology industries – they serve a purpose in data storage devices, rotating machines, healthcare devices and other advanced devices,
Compactness – despite their small size, they deliver powerful magnetism, making them ideal for precision applications

Disadvantages of neodymium magnets:

They are prone to breaking when subjected to a strong impact. If the magnets are exposed to physical collisions, they should be placed in a protective case. The steel housing, in the form of a holder, protects the magnet from cracks and additionally strengthens its overall resistance,
Magnets lose magnetic efficiency 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,
Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of synthetic coating for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the restrictions in manufacturing threads directly in the magnet,
Possible threat from tiny pieces may arise, in case of ingestion, which is important in the health of young users. It should also be noted that miniature parts from these devices can hinder health screening after being swallowed,
High unit cost – neodymium magnets are costlier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Exercise Caution with Neodymium Magnets

It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.

Magnets will crack or alternatively crumble with uncontrolled joining to each other. Remember not to move them to each other or have them firmly in hands at a distance less than 10 cm.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.

Neodymium magnets are fragile as well as can easily break and shatter.

Neodymium magnets are characterized by considerable fragility. 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 away from people with pacemakers.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes 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.

Avoid bringing neodymium magnets close to a phone or GPS.

Magnetic fields interfere with compasses and magnetometers used in navigation for air and sea transport, 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. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

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

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.

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

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

The strong magnetic field generated by neodymium magnets can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also destroy devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

Neodymium magnets are among the strongest magnets on Earth. The surprising force they generate between each other 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.

Safety rules!

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