MPL 20x5x5 / N38 - neodymium magnet
lamellar magnet
catalog number 020132
GTIN: 5906301811381
length
20
mm [±0,1 mm]
width
5
mm [±0,1 mm]
height
5
mm [±0,1 mm]
magnetizing direction
↑ axial
capacity ~
3.95 kg / 38.74 N
magnetic induction ~
456.78 mT / 4,568 Gs
max. temperature
≤ 80
°C
catalog number 020132
GTIN: 5906301811381
length
20 mm [±0,1 mm]
width
5 mm [±0,1 mm]
height
5 mm [±0,1 mm]
magnetizing direction
↑ axial
capacity ~
3.95 kg / 38.74 N
magnetic induction ~
456.78 mT / 4,568 Gs
max. temperature
≤ 80 °C
2.76 ZŁ gross price (including VAT) / pcs +
2.24 ZŁ net price + 23% VAT / pcs
bulk discounts:
need more quantity?Don't know what to buy?
Give us a call tel: +48 888 99 98 98 or write via form on the contact page. You can check the lifting capacity and the appearance of neodymium magnet in our force calculator magnetic calculator
Orders placed by 2:00 PM will be shipped on the same business day.
Specification: lamellar magnet 20x5x5 / N38 ↑ axial
Magnetic properties of the material N38
Physical properties of sintered neodymium magnets Nd2Fe14B
Due to their power, flat magnets are regularly applied in devices that need exceptional adhesion.
Most common temperature resistance of these magnets is 80°C, but depending on the dimensions, this value rises.
In addition, flat magnets often have different coatings applied to their surfaces, such as nickel, gold, or chrome, to improve their strength.
The magnet named MPL 20x5x5 / N38 and a magnetic strength 3.95 kg weighing only 3.75 grams, making it the perfect choice for applications requiring a flat shape.
Contact surface: Thanks to their flat shape, flat magnets ensure a larger contact surface with other components, which is beneficial in applications needing a stronger magnetic connection.
Technology applications: These magnets are often applied in different devices, such as sensors, stepper motors, or speakers, where the flat shape is crucial for their operation.
Mounting: Their flat shape simplifies mounting, particularly when it is necessary to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets permits designers a lot of flexibility in arranging them in devices, which can be more difficult with magnets of more complex shapes.
Stability: In some applications, the flat base of the flat magnet can offer better stability, minimizing the risk of sliding or rotating. However, it's important to note that the optimal shape of the magnet is dependent on the specific project and requirements. In some cases, other shapes, such as cylindrical or spherical, may be more appropriate.
Magnets have two main poles: north (N) and south (S), which attract each other when they are different. Poles of the same kind, e.g. two north poles, repel each other.
Due to these properties, magnets are often used in magnetic technologies, e.g. motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the greatest strength of attraction, making them perfect for applications requiring strong magnetic fields. Moreover, the strength of a magnet depends on its size and the material it is made of.
It should be noted that extremely high temperatures, above the Curie point, cause a loss of magnetic properties in the magnet. The Curie temperature is specific to each type of magnet, meaning that under such conditions, the magnet stops being magnetic. Additionally, strong magnets can interfere with the operation of devices, such as navigational instruments, credit cards and even medical equipment, like pacemakers. Therefore, it is important to exercise caution when using magnets.
Compilation of suggested goods
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Advantages and disadvantages of neodymium magnets NdFeB.
Apart from immense power, neodymium magnets have the following advantages:
- They do not lose their power (of the magnet). After approximately 10 years, their power decreases by only ~1% (theoretically),
- They are extremely resistant to demagnetization by external magnetic sources,
- In other words, thanks to the shiny coating of nickel, gold, or silver, the element acquires an aesthetic appearance,
- They have exceptionally 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...
- Due to the option of accurate forming or adaptation to individual needs – neodymium magnets can be produced in a wide range of shapes and sizes, which amplifies their universality in usage.
- Key role in advanced technologically fields – are used in HDD drives, electric drive mechanisms, medical devices and various technologically advanced devices.
Disadvantages of neodymium magnets:
- They can break as they are extremely fragile when subjected to a strong impact. If the magnets are exposed to impacts, it is suggested using magnets in a steel housing. The steel housing in the form of a holder protects the magnet from impacts and also increases its overall strength,
- They lose strength 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 suggest using waterproof magnets made of rubber, plastic, or other moisture-resistant materials,
- The use of a cover or a magnetic holder is recommended due to the limited possibilities of manufacturing threads or complex shapes in the magnet
- Health risk arising from small pieces of magnets can be dangerous, when accidentally ingested, which is particularly important in the context of children's health. Furthermore, tiny parts of these devices have the potential to complicate diagnosis after entering the body.
Caution with Neodymium Magnets
Neodymium magnets can attract to each other due to their immense internal force, causing the skin and other body parts to get pinched and resulting in significant swellings.
If joining of neodymium magnets is not under control, at that time they may crumble and crack. You can't approach them to each other. At a distance less than 10 cm you should have them extremely firmly.
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.
Avoid contact with neodymium magnets 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.
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.
Neodymium magnets are not recommended for people with pacemakers.
Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.
Do not give neodymium magnets to youngest children.
Remember that neodymium magnets are not toys. Do not allow children to play 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 the strongest magnets ever created, and their strength can surprise 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.
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 made of neodymium are extremely delicate, they easily break and can crumble.
Neodymium magnets are characterized by significant fragility. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of connection between the magnets, small metal fragments can be dispersed in different directions.
Keep neodymium magnets away from TV, wallet, and computer HDD.
Neodymium magnets generate strong magnetic fields that can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also destroy videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.
So you are aware of why neodymium magnets are so dangerous, see the article titled How dangerous are strong neodymium magnets?.
Tabela kosztu i czasu dostawy
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23.00 ZŁ
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