MPL 25x25x10 / N38 - lamellar magnet
lamellar magnet
Catalog no 020137
GTIN: 5906301811435
length [±0,1 mm]
25 mm
Width [±0,1 mm]
25 mm
Height [±0,1 mm]
10 mm
Weight
46.88 g
Magnetization Direction
↑ axial
Load capacity
19.74 kg / 193.58 N
Magnetic Induction
361.04 mT
Coating
[NiCuNi] nickel
12.77 ZŁ with VAT / pcs + price for transport
10.38 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?Want to talk magnets?
Contact us by phone
+48 888 99 98 98
if you prefer drop us a message through
contact form
our website.
Strength along with form of magnets can be calculated using our
force calculator.
Orders placed before 14:00 will be shipped the same business day.
MPL 25x25x10 / N38 - lamellar magnet
Magnetic properties of material N38
Physical properties of NdFeB
Shopping tips
Due to their strength, flat magnets are commonly used in structures that need very strong attraction.
The standard temperature resistance of flat magnets is 80°C, but depending on the dimensions, this value grows.
In addition, flat magnets often have special coatings applied to their surfaces, such as nickel, gold, or chrome, to improve their corrosion resistance.
The magnet with the designation MPL 25x25x10 / N38 and a magnetic force 19.74 kg weighing only 46.88 grams, making it the excellent choice for applications requiring a flat shape.
Contact surface: Thanks to their flat shape, flat magnets guarantee a larger contact surface with other components, which can be beneficial in applications requiring a stronger magnetic connection.
Technology applications: These magnets are often applied in various devices, such as sensors, stepper motors, or speakers, where the thin and wide shape is important for their operation.
Mounting: The flat form's flat shape simplifies mounting, especially when it is necessary to attach the magnet to some surface.
Design flexibility: The flat shape of the magnets allows creators a lot of flexibility in placing them in structures, which is more difficult with magnets of more complex shapes.
Stability: In certain applications, the flat base of the flat magnet can offer 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 application and requirements. In certain cases, other shapes, such as cylindrical or spherical, may be more appropriate.
Magnets have two poles: north (N) and south (S), which interact with each other when they are different. Poles of the same kind, such as two north poles, act repelling on each other.
Due to these properties, magnets are regularly used in magnetic technologies, e.g. motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the highest power of attraction, making them perfect for applications requiring strong magnetic fields. Moreover, the strength of a magnet depends on its size and the materials used.
It’s worth noting 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 once this temperature is exceeded, the magnet stops being magnetic. Additionally, strong magnets can interfere with the operation of devices, such as navigational instruments, magnetic stripe cards or electronic devices sensitive to magnetic fields. For this reason, it is important to avoid placing magnets near such devices.
Advantages as well as disadvantages of neodymium magnets NdFeB.
Besides their durability, neodymium magnets are valued for these benefits:
- They virtually do not lose strength, because even after ten years, the decline in efficiency is only ~1% (based on calculations),
- They are extremely resistant to demagnetization caused by external magnetic fields,
- Because of the brilliant layer of silver, the component looks high-end,
- They have very high magnetic induction on the surface of the magnet,
- Thanks to their enhanced temperature resistance, they can operate (depending on the shape) even at temperatures up to 230°C or more,
- With the option for fine forming and personalized design, these magnets can be produced in numerous shapes and sizes, greatly improving engineering flexibility,
- Key role in cutting-edge sectors – they are used in computer drives, electromechanical systems, medical equipment as well as sophisticated instruments,
- Compactness – despite their small size, they deliver powerful magnetism, 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 physical collisions, they should be placed in a metal holder. The steel housing, in the form of a holder, protects the magnet from breakage and additionally increases its overall durability,
- They lose power at extreme temperatures. Most neodymium magnets experience permanent reduction in strength when heated above 80°C (depending on the dimensions and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
- Magnets exposed to humidity can corrode. Therefore, for outdoor applications, we advise waterproof types made of non-metallic composites,
- The use of a protective casing or external holder is recommended, since machining multi-axis shapes in neodymium magnets is restricted,
- Safety concern related to magnet particles may arise, if ingested accidentally, which is notable in the protection of children. Furthermore, tiny components from these assemblies may hinder health screening when ingested,
- High unit cost – neodymium magnets are more expensive than other types of magnets (e.g., ferrite), which can restrict large-scale applications
We Recommend Caution with Neodymium Magnets
Neodymium Magnets can attract to each other, pinch the skin, and cause significant injuries.
If you have a finger between or on the path of attracting magnets, there may be a severe cut or even a fracture.
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.
Keep neodymium magnets as far away as possible from GPS and smartphones.
Magnetic fields can interfere with compasses and magnetometers used in aviation and maritime navigation, as well as internal compasses of smartphones and GPS devices. There are neodymium magnets in every smartphone, for example, in the microphone and speakers.
Neodymium magnets are extremely delicate, they easily break and can become damaged.
Neodymium magnets are extremely fragile, and by joining them in an uncontrolled manner, they will break. Magnets made of neodymium are made of metal and coated with a shiny nickel, but they are not as durable 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.
Neodymium magnets generate intense 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. Remember not to place neodymium magnets close to these electronic devices.
Magnets are not toys, children should not play with them.
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 over 10 times more powerful than ferrite magnets (the ones in speakers), and their strength can shock you.
On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.
The magnet coating is made of nickel, so be cautious 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 should not be near people with pacemakers.
Neodymium magnets produce strong magnetic fields that can interfere 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 can become demagnetized at high temperatures.
While Neodymium magnets can lose their magnetic properties 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.
Pay attention!
To raise awareness of why neodymium magnets are so dangerous, see the article titled How very dangerous are very powerful neodymium magnets?.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za ${delivery-gls-courier-cod-days-to-deliver} dni
${delivery-gls-courier-cod-cost}
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za ${delivery-inpost-transfer-days-to-deliver} dni
${delivery-inpost-transfer-cost}
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za ${delivery-gls-courier-transfer-days-to-deliver} dni
${delivery-gls-courier-transfer-cost}
Rate the product
Your rating