MPL 50x20x20 / N38 - lamellar magnet
lamellar magnet
Catalog no 020166
GTIN: 5906301811725
length [±0,1 mm]
50 mm
Width [±0,1 mm]
20 mm
Height [±0,1 mm]
20 mm
Weight
150 g
Magnetization Direction
↑ axial
Load capacity
49.94 kg / 489.74 N
Magnetic Induction
478.99 mT
Coating
[NiCuNi] nickel
49.00 ZŁ with VAT / pcs + price for transport
39.84 ZŁ net + 23% VAT / pcs
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MPL 50x20x20 / N38 - lamellar magnet
Magnetic properties of material N38
Physical properties of NdFeB
Shopping tips
Due to their strength, flat magnets are commonly applied in devices that need exceptional adhesion.
Typical temperature resistance of flat magnets is 80 °C, but with larger dimensions, this value rises.
Moreover, flat magnets often have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, to increase their corrosion resistance.
The magnet with the designation MPL 50x20x20 / N38 and a magnetic force 49.94 kg which weighs just 150 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 adjacent parts, which is beneficial in applications needing a stronger magnetic connection.
Technology applications: They are often utilized in different devices, such as sensors, stepper motors, or speakers, where the flat shape is important for their operation.
Mounting: Their flat shape makes it easier mounting, especially when there's a need to attach the magnet to some surface.
Design flexibility: The flat shape of the magnets gives the possibility designers greater flexibility in arranging them in structures, which is more difficult with magnets of more complex shapes.
Stability: In some applications, the flat base of the flat magnet may provide better stability, minimizing the risk of sliding or rotating. It’s important to keep in mind that the optimal shape of the magnet depends on the specific project and requirements. In some cases, other shapes, like cylindrical or spherical, may be a better choice.
Magnets have two main poles: north (N) and south (S), which attract each other when they are oppositely oriented. Similar poles, e.g. two north poles, repel each other.
Thanks to this principle of operation, magnets are commonly used in electrical devices, such as motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the greatest strength of attraction, making them indispensable for applications requiring powerful magnetic fields. Additionally, the strength of a magnet depends on its dimensions and the materials used.
It’s worth noting that high temperatures can weaken the magnet's effect. The Curie temperature is specific to each type of magnet, meaning that once this temperature is exceeded, the magnet stops being magnetic. Additionally, strong magnets can interfere with the operation of devices, such as compasses, credit cards and even medical equipment, like pacemakers. Therefore, it is important to exercise caution when using magnets.
Advantages as well as disadvantages of neodymium magnets NdFeB.
Apart from their notable magnetism, neodymium magnets have these key benefits:
- They virtually do not lose power, because even after ten years, the performance loss is only ~1% (according to literature),
- They are highly resistant to demagnetization caused by external magnetic fields,
- In other words, due to the glossy gold coating, the magnet obtains an stylish appearance,
- They possess strong magnetic force measurable at the magnet’s surface,
- With the right combination of materials, they reach excellent thermal stability, enabling operation at or above 230°C (depending on the form),
- The ability for custom shaping or adaptation to custom needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which amplifies their functionality across industries,
- Wide application in new technology industries – they find application in data storage devices, electromechanical systems, clinical machines as well as other advanced devices,
- Compactness – despite their small size, they provide high effectiveness, making them ideal for precision applications
Disadvantages of rare earth magnets:
- They are fragile when subjected to a heavy impact. If the magnets are exposed to mechanical hits, we recommend in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from fracture while also enhances its overall durability,
- High temperatures may significantly reduce the magnetic power of neodymium magnets. Typically, above 80°C, they experience permanent weakening in performance (depending on size). 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 plastic for outdoor use,
- Limited ability to create internal holes in the magnet – the use of a mechanical support is recommended,
- Potential hazard from tiny pieces may arise, in case of ingestion, which is significant in the health of young users. Furthermore, miniature parts from these products might hinder health screening once in the system,
- In cases of tight budgets, neodymium magnet cost may be a barrier,
We Recommend Caution with 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 are known for their fragility, which can cause them to shatter.
Neodymium magnets are highly delicate, and by joining them in an uncontrolled manner, they will crumble. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.
Do not place neodymium magnets near a computer HDD, TV, and wallet.
The strong magnetic field generated by neodymium magnets can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also damage devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.
Neodymium magnets are the strongest, most remarkable magnets on earth, and the surprising force between them can shock you at first.
Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional damage to the magnets.
Keep neodymium magnets away from children.
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 can demagnetize at high temperatures.
In certain circumstances, Neodymium magnets can lose their magnetism when subjected to high temperatures.
Keep neodymium magnets as far away as possible from GPS and smartphones.
Neodymium magnets are a source of intense magnetic fields that cause interference with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.
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. Remember not to move them to each other or hold them firmly in hands at a distance less than 10 cm.
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.
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.
Pay attention!
To raise awareness of why neodymium magnets are so dangerous, read the article titled How very dangerous are very powerful neodymium magnets?.
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