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neodymium magnets

We offer red color magnets Nd2Fe14B - our store's offer. All magnesy neodymowe in our store are available for immediate delivery (see the list). Check out the magnet price list for more details see the magnet price list

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MPL 10x10x3 / N38 - neodymium magnet

lamellar magnet

catalog number 020111

GTIN: 5906301811176

5.0

length

10 mm [±0,1 mm]

width

10 mm [±0,1 mm]

height

3 mm [±0,1 mm]

magnetizing direction

↑ axial

capacity ~

2.37 kg / 23.24 N

magnetic induction ~

293.71 mT / 2,937 Gs

max. temperature

≤ 80 °C

1.55 PLN gross price (including VAT) / pcs +

1.26 PLN net price + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
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Give us a call tel: +48 888 99 98 98 or contact us through contact form on the contact page. You can check the mass and the appearance of neodymium magnets in our magnetic calculator power calculator

Orders placed by 2:00 PM will be shipped on the same business day.

Specification: lamellar magnet 10x10x3 / N38 ↑ axial

Characteristics: lamellar magnet 10x10x3 / N38 ↑ axial
Properties
Values
catalog number
020111
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
85059029
length
10 mm [±0,1 mm]
width
10 mm [±0,1 mm]
height
3 mm [±0,1 mm]
magnetizing direction ?
↑ axial
capacity ~ ?
2.37 kg / 23.24 N
magnetic induction ~ ?
293.71 mT / 2,937 Gs
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
weight
2.25 g
execution tolerance
± 0.1 mm

Magnetic properties of the material N38

material characteristics N38
Properties
Values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
coercivity bHc ?
10.8-11.5
kOe
coercivity bHc ?
860-915
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.]
36-38
BH max MGOe
energy density [Min. - Max.]
287-303
BH max KJ/m
max. temperature
≤ 80
°C

Physical properties of sintered neodymium magnets Nd2Fe14B

Physical properties of sintered neodymium magnets Nd2Fe14B
Properties
Values
units
Vickers hardness
≥550
Hv
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
Neodymium disc magnets provide a range of advantages in relation to other magnet shapes, which cause them to be the best choice for many applications:
Contact Surface: Due to their flat shape, disc magnets provide a larger contact surface with other elements, which is beneficial in applications requiring a stronger magnetic connection.
Applications in Technology: They are often used in various devices, such as sensors, stepper motors, or speakers, where a flat shape is crucial for their operation.
Mounting: Their flat shape makes mounting, especially when there's a need to adhere the magnet to another surface.
Design Flexibility: The flat shape of the magnets gives designers with significant flexibility in placing them in devices, which can sometimes be more difficult with magnets of more complex shapes.
Stability: In some applications, the flat base of a disc magnet can offer better stability, minimizing the risk of sliding or rotating. It should be noted that the optimal shape of a magnet depends on the specific project and requirements. In certain cases, other shapes, such as cylindrical or spherical, may be a better choice.

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Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from immense strength, neodymium magnets have the following advantages:

  • They do not lose strength over time. After 10 years, their strength decreases by only ~1% (theoretically),
  • They are highly resistant to demagnetization by external magnetic field,
  • Thanks to the shiny finish and nickel, gold, or silver coating, they have an aesthetic appearance,
  • They exhibit extremely high magnetic induction on the surface of the magnet,
  • Magnetic neodymium magnets are characterized by very high magnetic induction on the surface of the magnet and can operate (depending on the shape) even at temperatures of 230°C or higher...
  • Thanks to the flexibility in shaping or the ability to adapt to specific requirements – neodymium magnets can be produced in a wide range of shapes and sizes, which expands the range of their possible uses.
  • Wide application in modern technologies – find application in computer drives, electric motors, medical devices and other highly developed apparatuses.

Disadvantages of neodymium magnets:

  • They are fragile when subjected to a strong impact. If the magnets are exposed to impacts, we recommend using magnets in a steel housing. The steel housing in the form of a holder protects the magnet from impacts and at the same time increases its overall strength,
  • They lose power at high temperatures. Most neodymium magnets experience permanent loss of strength when heated above 80°C (depending on the shape and height). However, we also offer special magnets with high temperature resistance, up to 230°C,
  • Magnets exposed to a humid environment can corrode. Therefore, when using them outdoors, we recommend using waterproof magnets made of rubber, plastic, or other moisture-resistant materials,
  • The use of a cover - a magnetic holder is recommended due to the limited production capabilities of creating threads or complex shapes in the magnet
  • Potential hazard arising from small pieces of magnets pose a threat, when accidentally ingested, which is crucial in the context of children's health. Furthermore, miniscule components of these magnets can be problematic in medical diagnosis in case of swallowing.

Exercise Caution with Neodymium Magnets

People with pacemakers are advised to avoid neodymium magnets.

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.

The magnet is coated with nickel. Therefore, exercise caution if you have an allergy.

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, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets are the most powerful, most remarkable magnets on earth, and the surprising force between them can shock you at first.

Familiarize yourself with our information to properly handle these magnets and avoid significant swellings to your body and prevent disruption to the magnets.

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.

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

Remember that neodymium magnets are not toys. Be cautious and make sure no child plays with them. In the case of swallowing multiple magnets simultaneously, they can attract to each other through the intestinal walls. In the worst case scenario, this can lead to death.

Do not place neodymium magnets near a computer HDD, TV, and wallet.

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. Avoid placing neodymium magnets in close proximity to electronic devices.

Neodymium magnets can demagnetize at high temperatures.

Under specific conditions, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Under no circumstances should neodymium magnets be brought close to GPS and smartphones.

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.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

Magnets will jump and touch together within a radius of several to almost 10 cm from each other.

Neodymium magnets are fragile as well as can easily break as well as get damaged.

Magnets made of neodymium are fragile 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. At the moment of collision between the magnets, small sharp metal pieces can be propelled in various directions at high speed. Eye protection is recommended.

In order to illustrate why neodymium magnets are so dangerous, see the article - How very dangerous are powerful neodymium magnets?.

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98