MPL 5x5x1.5 / N38 - lamellar magnet
lamellar magnet
Catalog no 020172
GTIN: 5906301811787
length [±0,1 mm]
5 mm
Width [±0,1 mm]
5 mm
Height [±0,1 mm]
1.5 mm
Weight
0.28 g
Magnetization Direction
↑ axial
Load capacity
0.59 kg / 5.79 N
Magnetic Induction
293.49 mT
Coating
[NiCuNi] nickel
0.1845 ZŁ with VAT / pcs + price for transport
0.1500 ZŁ net + 23% VAT / pcs
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MPL 5x5x1.5 / N38 - lamellar magnet
Magnetic properties of material N38
Physical properties of NdFeB
Shopping tips
Thanks to their mighty power, flat magnets are regularly applied in products that require strong holding power.
The standard temperature resistance of these magnets is 80 °C, but depending on the dimensions, this value rises.
Additionally, flat magnets usually have special coatings applied to their surfaces, e.g. nickel, gold, or chrome, for enhancing their durability.
The magnet named MPL 5x5x1.5 / N38 i.e. a lifting capacity of 0.59 kg weighing just 0.28 grams, making it the ideal choice for projects needing a flat magnet.
Contact surface: Thanks to their flat shape, flat magnets ensure a greater contact surface with other components, which is beneficial in applications needing a stronger magnetic connection.
Technology applications: They are often utilized in many devices, e.g. sensors, stepper motors, or speakers, where the flat shape is important for their operation.
Mounting: The flat form's flat shape simplifies mounting, especially when it is required to attach the magnet to some surface.
Design flexibility: The flat shape of the magnets gives the possibility designers greater flexibility in placing them in devices, which can be more difficult with magnets of more complex shapes.
Stability: In certain applications, the flat base of the flat magnet may provide better stability, minimizing the risk of sliding or rotating. However, one should remember that the optimal shape of the magnet depends on the specific application and requirements. In certain cases, other shapes, like cylindrical or spherical, are more appropriate.
Magnets have two main poles: north (N) and south (S), which interact with each other when they are different. Poles of the same kind, e.g. two north poles, act repelling on each other.
Thanks to this principle of operation, magnets are regularly used in magnetic technologies, such as motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the greatest strength of attraction, making them indispensable 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 and even electronic devices sensitive to magnetic fields. Therefore, it is important to avoid placing magnets near such devices.
Advantages and disadvantages of neodymium magnets NdFeB.
Besides their stability, neodymium magnets are valued for these benefits:
- Their strength is maintained, and after around 10 years, it drops only by ~1% (according to research),
- They remain magnetized despite exposure to magnetic surroundings,
- Because of the brilliant layer of nickel, the component looks aesthetically refined,
- Magnetic induction on the surface of these magnets is very strong,
- With the right combination of compounds, they reach significant thermal stability, enabling operation at or above 230°C (depending on the form),
- Thanks to the possibility in shaping and the capability to adapt to individual requirements, neodymium magnets can be created in diverse shapes and sizes, which increases their application range,
- Significant impact in new technology industries – they are utilized in hard drives, rotating machines, healthcare devices along with other advanced devices,
- Compactness – despite their small size, they generate strong force, making them ideal for precision applications
Disadvantages of neodymium magnets:
- They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to physical collisions, we recommend in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from damage and additionally enhances its overall resistance,
- They lose magnetic force at extreme temperatures. Most neodymium magnets experience permanent reduction in strength when heated above 80°C (depending on the form and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
- They rust in a wet environment. If exposed to rain, we recommend using moisture-resistant magnets, such as those made of plastic,
- The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is not feasible,
- Safety concern due to small fragments may arise, in case of ingestion, which is important in the family environments. Moreover, minuscule fragments from these products might interfere with diagnostics after being swallowed,
- In cases of tight budgets, neodymium magnet cost is a challenge,
Maximum lifting force for a neodymium magnet – what contributes to it?
The given holding capacity of the magnet corresponds to the highest holding force, calculated in the best circumstances, that is:
- with the use of low-carbon steel plate serving as a magnetic yoke
- 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
Practical lifting force is dependent on elements, by priority:
- Air gap between the magnet and the plate, as 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.
* Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. In addition, even a small distance {between} the magnet and the plate decreases the lifting capacity.
Safety Guidelines with Neodymium Magnets
Do not give neodymium magnets to children.
Neodymium magnets are not toys. You cannot allow them to become toys for children. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.
Neodymium magnets are highly susceptible to damage, resulting in breaking.
Neodymium magnets are characterized by considerable fragility. Neodymium magnets 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.
Neodymium magnets are the strongest magnets ever created, 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.
Dust and powder from neodymium magnets are flammable.
Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.
Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.
Neodymium magnets bounce and touch each other mutually within a distance of several to almost 10 cm from each other.
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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.
Neodymium magnets can demagnetize at high temperatures.
Even though 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.
Avoid bringing neodymium magnets close to a phone or GPS.
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.
Keep neodymium magnets away from 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. 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.
You should keep neodymium magnets at a safe distance from the wallet, computer, and TV.
The strong magnetic field generated by neodymium magnets can damage 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.
Caution!
So that know how strong neodymium magnets are and why they are so dangerous, see the article - Dangerous powerful neodymium magnets.
