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MP 16x12x2 / N38 - ring magnet

ring magnet

Catalog no 030183

GTIN: 5906301812005

Diameter [±0,1 mm]

16 mm

internal diameter Ø [±0,1 mm]

12 mm

Height [±0,1 mm]

2 mm

Weight

1.88 g

Magnetization Direction

↑ axial

Load capacity

1.37 kg / 13.44 N

Magnetic Induction

45.64 mT

Coating

[NiCuNi] nickel

1.30 ZŁ with VAT / pcs + price for transport

1.06 ZŁ net + 23% VAT / pcs

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MP 16x12x2 / N38 - ring magnet

Specification/characteristics MP 16x12x2 / N38 - ring magnet

properties

values

Cat. no.

030183

GTIN

5906301812005

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter

16 mm [±0,1 mm]

internal diameter Ø

12 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

1.88 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

1.37 kg / 13.44 N

Magnetic Induction ~ ?

45.64 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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Due to unique properties, MP 16x12x2 / N38 in a ring form finds extensive use in various industries. Thanks to a powerful magnetic field of 1.37 kg, which can be described as force, they are very helpful in applications that require strong magnetism in a compact space. Usage of MP 16x12x2 / N38 magnets include electrical mechanisms, generating systems, audio systems, and numerous other devices that use magnets for producing motion or storing energy. Despite their significant strength, they have a relatively low weight of 1.88 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 generating a strong and precise magnetic field. This makes them perfect for devices such as stepper motors or industrial robots. Additionally, ring magnets are resistant to demagnetization.

They are used in various fields of technology and industry, such as electronics, e.g., in the production of speakers or 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 indispensable in challenging industrial conditions.

Ring magnets stand out high magnetic strength, ability to work in extreme conditions, and precision in generating the magnetic field. Thanks to their ring shape 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.

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. 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 neodymium magnet with classification N50 and N52 is a strong and powerful metal object shaped like a ring, providing strong holding power and universal applicability. Competitive price, fast shipping, durability and multi-functionality.

Advantages and disadvantages of neodymium magnets NdFeB.

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

Their strength is maintained, and after approximately ten years, it drops only by ~1% (theoretically),
They show strong resistance to demagnetization from external magnetic fields,
In other words, due to the shiny silver coating, the magnet obtains an aesthetic appearance,
The outer field strength of the magnet shows advanced magnetic properties,
With the right combination of magnetic alloys, they reach significant thermal stability, enabling operation at or above 230°C (depending on the design),
The ability for precise shaping as well as adjustment to specific needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which amplifies their functionality across industries,
Significant impact in modern technologies – they serve a purpose in computer drives, rotating machines, diagnostic apparatus and other advanced devices,
Relatively small size with high magnetic force – neodymium magnets offer intense magnetic field in tiny dimensions, which allows for use in compact constructions

Disadvantages of magnetic elements:

They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to shocks, they should be placed in a metal holder. The steel housing, in the form of a holder, protects the magnet from fracture , and at the same time reinforces its overall durability,
High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent deterioration in performance (depending on form). 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 recommended to use sealed magnets made of rubber for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the challenges in manufacturing holes directly in the magnet,
Possible threat from tiny pieces may arise, in case of ingestion, which is significant in the family environments. It should also be noted that small elements from these devices have the potential to hinder health screening when ingested,
Due to the price of neodymium, their cost is considerably higher,

Be Cautious with Neodymium Magnets

Keep neodymium magnets far from children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. Small magnets pose a serious choking hazard or can attract to each other in the intestines. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

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.

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

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.

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.

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.

Neodymium magnets are the most powerful magnets ever invented. Their strength can shock 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 the wallet, computer, and TV.

Neodymium magnets generate strong magnetic fields that can damage 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. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

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. 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 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.

In the situation of placing a finger in the path of a neodymium magnet, in that situation, a cut or even a fracture may occur.

Neodymium magnetic are highly fragile, they easily fall apart as well as can become damaged.

Magnets made of neodymium are delicate and will shatter 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.

Safety rules!

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