MPL 25x15x2 / N38 - lamellar magnet
lamellar magnet
Catalog no 020392
GTIN: 5906301811893
length [±0,1 mm]
25 mm
Width [±0,1 mm]
15 mm
Height [±0,1 mm]
2 mm
Weight
5.63 g
Magnetization Direction
↑ axial
Load capacity
3.06 kg / 30.01 N
Magnetic Induction
120.03 mT
Coating
[NiCuNi] nickel
2.39 ZŁ with VAT / pcs + price for transport
1.94 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?Want to talk magnets?
Call us
+48 888 99 98 98
alternatively drop us a message via
form
the contact section.
Specifications and form of magnets can be estimated using our
magnetic calculator.
Order by 14:00 and we’ll ship today!
MPL 25x15x2 / N38 - lamellar magnet
Magnetic properties of material N38
Physical properties of NdFeB
Shopping tips
Due to their power, flat magnets are regularly used in devices that need exceptional adhesion.
The standard temperature resistance of flat magnets is 80°C, but with larger dimensions, this value grows.
Additionally, flat magnets commonly have special coatings applied to their surfaces, e.g. nickel, gold, or chrome, to increase their corrosion resistance.
The magnet named MPL 25x15x2 / N38 i.e. a lifting capacity of 3.06 kg with a weight of a mere 5.63 grams, making it the perfect choice for applications requiring a flat shape.
Contact surface: Due to their flat shape, flat magnets guarantee a larger contact surface with other components, which can be beneficial in applications needing a stronger magnetic connection.
Technology applications: They are often used in different devices, such as sensors, stepper motors, or speakers, where the flat shape is necessary for their operation.
Mounting: This form's flat shape simplifies mounting, particularly when it is required 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 may provide better stability, minimizing the risk of shifting or rotating. However, one should remember that the optimal shape of the magnet is dependent on the given use and requirements. In some cases, other shapes, such as cylindrical or spherical, are more appropriate.
Magnets have two poles: north (N) and south (S), which interact with each other when they are different. Similar poles, such as two north poles, act repelling on each other.
Due to these properties, magnets are commonly used in magnetic technologies, such as motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the highest power of attraction, making them indispensable for applications requiring strong magnetic fields. Moreover, the strength of a magnet depends on its dimensions and the material it is made of.
It’s worth noting that extremely high temperatures, above the Curie point, cause a loss of magnetic properties in the magnet. Every magnetic material has its Curie point, 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 electronic devices sensitive to magnetic fields. Therefore, it is important to exercise caution when using magnets.
Advantages and disadvantages of neodymium magnets NdFeB.
Besides their durability, neodymium magnets are valued for these benefits:
- They do not lose their magnetism, even after around 10 years – the loss of power is only ~1% (theoretically),
- Their ability to resist magnetic interference from external fields is among the best,
- By applying a bright layer of gold, the element gains a modern look,
- Magnetic induction on the surface of these magnets is notably high,
- These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to form),
- With the option for fine forming and personalized design, these magnets can be produced in multiple shapes and sizes, greatly improving application potential,
- Important function in modern technologies – they find application in hard drives, rotating machines, clinical machines and technologically developed systems,
- Compactness – despite their small size, they provide high effectiveness, making them ideal for precision applications
Disadvantages of NdFeB magnets:
- They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to external force, it is suggested to place them in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from breakage and enhances its overall resistance,
- High temperatures may significantly reduce the strength of neodymium magnets. Typically, above 80°C, they experience permanent loss 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,
- They rust in a humid environment. If exposed to rain, we recommend using encapsulated magnets, such as those made of polymer,
- Limited ability to create precision features in the magnet – the use of a magnetic holder is recommended,
- Potential hazard linked to microscopic shards may arise, when consumed by mistake, which is notable in the context of child safety. Additionally, small elements from these products have the potential to hinder health screening when ingested,
- Higher purchase price is an important factor to consider compared to ceramic magnets, especially in budget-sensitive applications
Magnetic strength at its maximum – what contributes to it?
The given lifting capacity of the magnet means the maximum lifting force, measured in a perfect environment, that is:
- using a steel plate with low carbon content, acting as a magnetic circuit closure
- with a thickness of minimum 10 mm
- with a polished side
- with no separation
- with vertical force applied
- at room temperature
Practical lifting capacity: influencing factors
The lifting capacity of a magnet is influenced by in practice the following factors, from primary to secondary:
- Air gap between the magnet and the plate, since even a very small distance (e.g. 0.5 mm) causes a drop in lifting force of up to 50%.
- Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
- Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
- Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
- Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
- Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.
* Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance {between} the magnet and the plate decreases the lifting capacity.
Handle Neodymium Magnets Carefully
Neodymium magnets can attract to each other, pinch the skin, and cause significant injuries.
If have a finger between or on the path of attracting magnets, there may be a large cut or even a fracture.
Neodymium magnets are the strongest magnets ever created, and their power can shock you.
Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.
Avoid contact with neodymium magnets if you have a nickel 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.
Neodymium magnets can become demagnetized at high temperatures.
Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.
Keep neodymium magnets far from children.
Remember that neodymium magnets are not toys. Be cautious and make sure no child plays with them. Small magnets can pose a serious choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing severe injuries, and even death.
Keep neodymium magnets as far away as possible from GPS and smartphones.
Neodymium magnets generate strong magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.
Dust and powder from neodymium magnets are flammable.
Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.
Neodymium magnets are extremely fragile, resulting in breaking.
In the event of a collision between two neodymium magnets, it can result in them getting chipped. 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.
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. You should especially avoid placing neodymium magnets near electronic devices.
Neodymium magnets are not recommended for 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.
Exercise caution!
To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are strong 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