← previous

Product available shipping tomorrow

MP 62x42x25 / N38 - ring magnet

ring magnet

Catalog no 030205

GTIN: 5906301812227

Diameter [±0,1 mm]

62 mm

internal diameter Ø [±0,1 mm]

42 mm

Height [±0,1 mm]

25 mm

Weight

117.81 g

Magnetization Direction

↑ axial

Load capacity

59.85 kg / 586.93 N

Magnetic Induction

85.46 mT

Coating

[NiCuNi] nickel

165.00 ZŁ with VAT / pcs + price for transport

134.15 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

134.15 ZŁ

165.00 ZŁ

price from 5 pcs

126.10 ZŁ

155.10 ZŁ

price from 19 pcs

118.05 ZŁ

145.20 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Pick up the phone and ask +48 888 99 98 98 otherwise send us a note using form the contact form page.
Specifications as well as shape of magnets can be analyzed on our modular calculator.

Same-day processing for orders placed before 14:00.

MP 62x42x25 / N38 - ring magnet

Specification/characteristics MP 62x42x25 / N38 - ring magnet

properties

values

Cat. no.

030205

GTIN

5906301812227

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter

62 mm [±0,1 mm]

internal diameter Ø

42 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

117.81 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

59.85 kg / 586.93 N

Magnetic Induction ~ ?

85.46 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!

UMC 20x6/3x7 / N38 - cylindrical magnetic holder

6.99 ZŁ / pcs

Produkt dostępny wysyłka jutro!

XT-6 magnetyzery do silników - BENZYNA + POWIETRZE - XT-6 magnetizer

94.99 ZŁ / pcs

Produkt dostępny wysyłka jutro!

SM 32x325 [2xM8] / N42 - magnetic separator

971.70 ZŁ / pcs

Produkt dostępny wysyłka jutro!

NCM 15x13.5x5 / N38 - channel magnetic holder

5.10 ZŁ / pcs

Due to specific properties, MP 62x42x25 / N38 in a ring form finds extensive use in various industries. Thanks to a powerful magnetic field of 59.85 kg, which can be described as lifting capacity, they are extremely useful in applications that require high magnetic power in a relatively small area. Applications of MP 62x42x25 / N38 magnets include electrical mechanisms, generators, audio systems, and several other devices that use magnets for generating motion or storing energy. Despite their significant strength, they have a relatively low weight of 117.81 grams, which makes them more practical compared to bulkier alternatives.

The operation of ring magnets results from their unique atomic structure. In the production process, neodymium atoms are arranged appropriately, which allows for generating a strong and precise magnetic field. 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.

Ring magnets have a wide range of applications in many industries, such as production of electronic devices, such as speakers and electric motors, the automotive industry, e.g., in the construction of 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 high magnetic strength, resistance to high temperatures, and precision in generating the magnetic field. Their unique ring form allows for effective use in devices such as motors or speakers. Moreover, these magnets are more durable than traditional ferrite magnets, 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, as long as the temperature does not exceed the Curie point. They are more resistant to loss of magnetism than traditional ferrite magnets. 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 in classes N52 and N50 is a strong and extremely powerful metallic component in the form of a ring, that offers strong holding power and versatile application. Very good price, availability, ruggedness and multi-functionality.

Advantages and disadvantages of neodymium magnets NdFeB.

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

They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
They are very resistant to demagnetization caused by external field interference,
By applying a shiny layer of nickel, the element gains a modern look,
They possess significant magnetic force measurable at the magnet’s surface,
These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to build),
The ability for precise shaping as well as adjustment to individual needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which amplifies their functionality across industries,
Significant impact in new technology industries – they find application in HDDs, electric drives, healthcare devices as well as technologically developed systems,
Thanks to their efficiency per volume, small magnets offer high magnetic performance, with minimal size,

Disadvantages of magnetic elements:

They may fracture when subjected to a sudden impact. If the magnets are exposed to mechanical hits, we recommend in a metal holder. The steel housing, in the form of a holder, protects the magnet from cracks and additionally enhances its overall robustness,
They lose magnetic force at high temperatures. Most neodymium magnets experience permanent reduction 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 recommended to use sealed magnets made of protective material for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the restrictions in manufacturing holes directly in the magnet,
Potential hazard related to magnet particles may arise, in case of ingestion, which is notable in the health of young users. Furthermore, miniature parts from these assemblies have the potential to interfere with diagnostics 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

Do not give neodymium magnets to youngest children.

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.

Neodymium magnets are over 10 times stronger than ferrite magnets (the ones in speakers), and their strength can surprise you.

Read the information on our website on how to properly utilize neodymium magnets and avoid significant harm to your body and unintentional disruption to the magnets.

Keep neodymium magnets away from people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.

Neodymium magnets produce strong magnetic fields that can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also damage videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

Do not bring neodymium magnets close to GPS and smartphones.

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.

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.

If the joining of neodymium magnets is not under control, then they may crumble and crack. You can't move them to each other. At a distance less than 10 cm you should have them very firmly.

The magnet coating contains nickel, so be cautious 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.

Magnets made of neodymium are extremely fragile, leading to shattering.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. Despite being made of metal as well as coated with a shiny nickel plating, they are not as hard as steel. 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 can become demagnetized at high temperatures.

Despite the general resilience of magnets, their ability to retain their magnetic strength can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

Safety precautions!

To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are powerful neodymium magnets?.