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neodymium magnets

We provide red color magnets Nd2Fe14B - our store's offer. Practically all "neodymium magnets" in our store are in stock for immediate purchase (check the list). See the magnet pricing for more details see the magnet price list

Magnets for treasure hunters F300 GOLD

Where to purchase powerful neodymium magnet? Holders with magnets in solid and airtight steel enclosure are perfect for use in challenging weather conditions, including during rain and snow check...

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Magnetic holders can be applied to facilitate manufacturing, underwater discoveries, or finding meteors from gold check...

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MPL 50x25x12 / N38 - neodymium magnet

lamellar magnet

catalog number 020343

GTIN: 5906301811855

5.0

length

50 mm [±0,1 mm]

width

25 mm [±0,1 mm]

height

12 mm [±0,1 mm]

magnetizing direction

↑ axial

capacity ~

33.50 kg / 328.52 N

magnetic induction ~

340.43 mT / 3,404 Gs

max. temperature

≤ 80 °C

27.33 PLN gross price (including VAT) / pcs +

22.22 PLN net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
22.22 PLN
27.33 PLN
price from 28 pcs
20.89 PLN
25.69 PLN
price from 100 pcs
19.55 PLN
24.05 PLN

Don't know what to buy?

Give us a call tel: +48 888 99 98 98 or get in touch via form on the contact page. You can check the lifting capacity and the appearance of neodymium magnets in our force calculator force calculator

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

Specification: lamellar magnet 50x25x12 / N38 ↑ axial

Characteristics: lamellar magnet 50x25x12 / N38 ↑ axial
Properties
Values
catalog number
020343
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
85059029
length
50 mm [±0,1 mm]
width
25 mm [±0,1 mm]
height
12 mm [±0,1 mm]
magnetizing direction ?
↑ axial
capacity ~ ?
33.50 kg / 328.52 N
magnetic induction ~ ?
340.43 mT / 3,404 Gs
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
weight
112.50 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 offer a range of advantages compared to other magnet shapes, which make an excellent solution for numerous projects:
Contact Surface: Due to their flat shape, disc magnets guarantee a significant contact surface with other elements, which can be beneficial in applications needing a stronger magnetic connection.
Applications in Technology: The magnets are often utilized in different devices, like sensors, stepper motors, or speakers, where a flat shape is essential for their operation.
Mounting: The flat form's flat shape facilitates mounting, particularly when you need to adhere the magnet to another surface.
Design Flexibility: The disc shape of the magnets gives designers with significant flexibility in placing them in devices, which can be more difficult with magnets of other shapes.
Stability: In certain applications, the flat base of a disc magnet can provide better stability, reducing 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, might be a better choice.

List recommended items

Advantages and disadvantages of neodymium magnets NdFeB.

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

  • They do not lose strength over time. After about 10 years, their strength decreases by only ~1% (theoretically),
  • They are exceptionally resistant to demagnetization caused by an external magnetic field,
  • By applying a shiny coating of nickel, gold, or silver, the element gains an aesthetic appearance,
  • They possess very high magnetic induction on the surface of the magnet,
  • By using an appropriate combination of materials, they can achieve significant thermal resistance, allowing them to operate at temperatures up to 230°C and above...
  • The ability for precise shaping or customization to specific needs – neodymium magnets can be produced in many variants of shapes or sizes, which enhances their versatility in applications.
  • Key role in the industry of new technologies – are used in hard drives, electric motors, medical apparatus and very advanced devices.

Disadvantages of neodymium magnets:

  • They can break as they are fragile when subjected to a powerful impact. If the magnets are exposed to impacts, we recommend using magnets in a metal holder. The steel housing in the form of a holder protects the magnet from impacts and also 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,
  • Due to their susceptibility to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic, or other moisture-resistant materials when using them outdoors,
  • Limited ability to create threads or complex shapes in the magnet - the use of a housing is recommended - magnetic holder
  • Health risk associated with microscopic parts of magnets are risky, if swallowed, which becomes significant in the context of children's health. Additionally, miniscule components of these devices are able to be problematic in medical diagnosis when they are in the body.

Safety Precautions

Comparing neodymium magnets to ferrite magnets (found in speakers), they are 10 times more powerful, and 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 as far away as possible from GPS and smartphones.

Intense magnetic fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.

  Neodymium magnets should not be around youngest children.

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.

Neodymium magnets are especially fragile, resulting in damage.

Neodymium magnets are fragile as well as will crack 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 connection between the magnets, tiny sharp metal pieces can be propelled in various directions at high speed. Eye protection is recommended.

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 bounce and touch together within a distance of several to around 10 cm from each other.

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

Strong magnetic fields emitted by neodymium magnets can destroy magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. They can also damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.

Neodymium magnets should not be near 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.

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

Neodymium magnets can demagnetize at high temperatures.

Whilst Neodymium magnets can demagnetize at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

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

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98