← previous

Product available shipping tomorrow

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

bulk discounts:

Need more?

price from 1 pcs

0.68 ZŁ

0.84 ZŁ

price from 883 pcs

0.64 ZŁ

0.79 ZŁ

price from 3677 pcs

0.60 ZŁ

0.74 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to negotiate?

Call us +48 22 499 98 98 or drop us a message using inquiry form the contact form page.
Force as well as appearance of a magnet can be estimated with our force calculator.

Orders placed before 14:00 will be shipped the same business day.

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

Shopping tips

Produkt dostępny wysyłka jutro!

MW 50x20 / N38 - cylindrical magnet

105.01 ZŁ / pcs

Produkt dostępny wysyłka jutro!

NCM 30x13.5x5 / N38 - channel magnetic holder

9.40 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder

200.00 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MPL 3x3x3 / N38 - lamellar magnet

0.16 ZŁ / pcs

Neodymium magnets MP 5x2.7/1.2x5 Z / N38 in a ring form are commonly used in various industries due to their specific properties. Thanks to a powerful magnetic field of 0.56 kg, which can be described as force, they are key in applications that require high magnetic power in a relatively small area. Applications of MP 5x2.7/1.2x5 Z / N38 magnets include electrical mechanisms, generating systems, 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 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 the creation of a concentrated magnetic field in a specific direction. This field is ideal for applications in systems requiring motion control. Moreover, their resistance to high temperatures and demagnetization makes them indispensable in industry.

Ring magnets have a wide range of applications in many industries, such as production of electronic devices, such as speakers and electric motors, automotive, where they are used in brushless electric motors, and medical equipment, e.g., in scanning devices. Thanks to their temperature resistance and precision makes them ideal for technologically advanced applications.

Their uniqueness comes from extraordinary pulling power, ability to work in extreme conditions, and precision in generating the magnetic field. Their unique ring form allows for application in devices requiring concentrated magnetic fields. Additionally, 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. They do not lose their magnetic properties, until the Curie temperature is exceeded, which for neodymium magnets is around 80°C. They are more resistant to loss of magnetism than traditional ferrite magnets. For this reason, they are ideal for applications in the automotive industry, robotics, and devices requiring operation in changing or extreme environmental conditions.

A neodymium ring magnet of class N50 and N52 is a strong and powerful metallic component shaped like a ring, providing strong holding power and universal applicability. Competitive price, fast shipping, stability and universal usability.

Advantages and disadvantages of neodymium magnets NdFeB.

Besides their high retention, neodymium magnets are valued for these benefits:

They retain their magnetic properties for nearly ten years – the drop is just ~1% (in theory),
They remain magnetized despite exposure to magnetic surroundings,
In other words, due to the metallic silver coating, the magnet obtains an professional appearance,
They exhibit elevated levels of magnetic induction near the outer area of the magnet,
These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to form),
Thanks to the freedom in shaping and the capability to adapt to unique requirements, neodymium magnets can be created in various configurations, which increases their usage potential,
Key role in cutting-edge sectors – they serve a purpose in data storage devices, electromechanical systems, clinical machines or even high-tech tools,
Relatively small size with high magnetic force – neodymium magnets offer strong power in tiny dimensions, which allows for use in miniature devices

Disadvantages of NdFeB magnets:

They can break when subjected to a heavy impact. If the magnets are exposed to mechanical hits, it is advisable to use in a steel housing. The steel housing, in the form of a holder, protects the magnet from damage and additionally reinforces its overall durability,
High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent weakening in performance (depending on size). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of protective material for outdoor use,
Limited ability to create internal holes in the magnet – the use of a housing is recommended,
Health risk from tiny pieces may arise, when consumed by mistake, which is significant in the health of young users. Moreover, tiny components from these devices have the potential to disrupt scanning if inside the body,
In cases of mass production, neodymium magnet cost is a challenge,

Be Cautious with Neodymium Magnets

Neodymium magnets can attract to each other, pinch the skin, and cause significant swellings.

Magnets may crack or alternatively crumble with careless connecting to each other. Remember not to approach them to each other or hold them firmly in hands at a distance less than 10 cm.

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

Remember that neodymium magnets are not toys. Do not allow children to play with them. They can be a significant choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing significant injuries, and even death.

Magnets made of neodymium are highly fragile, they easily break as well as can become damaged.

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.

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

To use 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.

Neodymium magnets should not be near people with pacemakers.

Neodymium magnets produce strong magnetic fields that can interfere 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.

Keep neodymium magnets as far away as possible 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.

Make sure not to bring neodymium magnets close to the TV, wallet, and computer HDD.

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, or other devices. They can also damage devices like video players, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

If you have a nickel allergy, avoid contact with neodymium magnets.

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 highly flammable.

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

Neodymium magnets can become demagnetized at high temperatures.

Despite the fact that magnets have been observed to maintain their efficacy up to temperatures of 80°C or 175°F, it's essential to consider that this threshold may fluctuate depending on the magnet's type, configuration, and intended usage.

Exercise caution!

In order to show why neodymium magnets are so dangerous, read the article - How dangerous are very strong neodymium magnets?.