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MPL 40x15x5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020153

GTIN: 5906301811596

length [±0,1 mm]

40 mm

Width [±0,1 mm]

15 mm

Height [±0,1 mm]

5 mm

Weight

22.5 g

Magnetization Direction

↑ axial

Load capacity

9.67 kg / 94.83 N

Magnetic Induction

249.11 mT

Coating

[NiCuNi] nickel

6.70 ZŁ with VAT / pcs + price for transport

5.45 ZŁ net + 23% VAT / pcs

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MPL 40x15x5 / N38 - lamellar magnet

Specification/characteristics MPL 40x15x5 / N38 - lamellar magnet

properties

values

Cat. no.

020153

GTIN

5906301811596

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

40 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

22.5 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

9.67 kg / 94.83 N

Magnetic Induction ~ ?

249.11 mT

Coating

[NiCuNi] nickel

Manufacturing Tolerance

± 0.1 mm

Magnetic properties of material N38

properties

values

units

coercivity bHc ?

860-915

kA/m

coercivity bHc ?

10.8-11.5

kOe

energy density [Min. - Max.] ?

287-303

BH max KJ/m

energy density [Min. - Max.] ?

36-38

BH max MGOe

remenance Br [Min. - Max.] ?

12.2-12.6

kGs

remenance Br [Min. - Max.] ?

1220-1260

actual internal force iHc

≥ 955

kA/m

actual internal force iHc

≥ 12

kOe

max. temperature ?

≤ 80

°C

Physical properties of NdFeB

properties

values

units

Vickers hardness

≥550

Density

≥7.4

g/cm³

Curie Temperature TC

312 - 380

°C

Curie Temperature TF

593 - 716

°F

Specific resistance

150

μΩ⋅Cm

Bending strength

250

Mpa

Compressive strength

1000~1100

Mpa

Thermal expansion parallel (∥) to orientation (M)

(3-4) x 106

°C^-1

Thermal expansion perpendicular (⊥) to orientation (M)

-(1-3) x 10-6

°C^-1

Young's modulus

1.7 x 104

kg/mm²

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Neodymium flat magnets min. MPL 40x15x5 / N38 are magnets created from neodymium in a rectangular form. They are appreciated for their extremely powerful magnetic properties, which outshine traditional iron magnets.
Due to their strength, flat magnets are frequently used in devices that need very strong attraction.
The standard temperature resistance of these magnets is 80°C, but with larger dimensions, this value can increase.
Moreover, flat magnets often have different coatings applied to their surfaces, such as nickel, gold, or chrome, to increase their durability.
The magnet named MPL 40x15x5 / N38 and a magnetic strength 9.67 kg with a weight of a mere 22.5 grams, making it the perfect choice for projects needing a flat magnet.

Neodymium flat magnets provide a range of advantages compared to other magnet shapes, which make them being the best choice for various uses:
Contact surface: Due 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 various devices, such as sensors, stepper motors, or speakers, where the flat shape is necessary for their operation.
Mounting: The flat form's flat shape makes it easier mounting, especially when it is required to attach the magnet to some surface.
Design flexibility: The flat shape of the magnets permits creators greater flexibility in placing them in devices, 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 given use and requirements. In some cases, other shapes, like cylindrical or spherical, may be a better choice.

Magnets attract ferromagnetic materials, such as iron, nickel, cobalt and alloys of metals with magnetic properties. Moreover, magnets may weaker affect some other metals, such as steel. It’s worth noting that magnets are utilized in various devices and technologies.

Magnets work thanks to the properties of their magnetic field, which is generated by the movement of electric charges within their material. Magnetic fields of these objects creates attractive interactions, which affect materials containing cobalt or other ferromagnetic substances.

Magnets have two poles: north (N) and south (S), which interact with each other when they are oppositely oriented. Poles of the same kind, such as 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 highest power of attraction, making them ideal for applications requiring strong magnetic fields. Moreover, the strength of a magnet depends on its dimensions and the materials used.

Not all materials react to magnets, and examples of such substances are plastics, glass, wooden materials or most gemstones. Additionally, magnets do not affect certain metals, such as copper items, aluminum materials, copper, aluminum, and gold. Although these metals conduct electricity, do not exhibit ferromagnetic properties, meaning that they do not respond to a standard magnetic field, unless they are subjected to an extremely strong magnetic field.
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. Interestingly, strong magnets can interfere with the operation of devices, such as compasses, magnetic stripe cards or medical equipment, like pacemakers. For this reason, it is important to avoid placing magnets near such devices.

A neodymium magnet N52 and N50 is a strong and extremely powerful metallic component designed as a plate, providing high force and universal applicability. Competitive price, fast shipping, ruggedness and universal usability.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from their superior holding force, neodymium magnets have these key benefits:

Their magnetic field remains stable, and after approximately ten years, it drops only by ~1% (according to research),
They are highly resistant to demagnetization caused by external magnetic fields,
By applying a bright layer of nickel, the element gains a clean look,
Magnetic induction on the surface of these magnets is impressively powerful,
These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to form),
The ability for precise shaping as well as customization to individual needs – neodymium magnets can be manufactured in many forms and dimensions, which amplifies their functionality across industries,
Key role in new technology industries – they are used in data storage devices, electric motors, healthcare devices as well as sophisticated instruments,
Compactness – despite their small size, they deliver powerful magnetism, making them ideal for precision applications

Disadvantages of neodymium magnets:

They can break when subjected to a heavy impact. If the magnets are exposed to mechanical hits, it is advisable to use in a metal holder. The steel housing, in the form of a holder, protects the magnet from cracks and enhances its overall robustness,
High temperatures may significantly reduce the holding force 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 protective material for outdoor use,
The use of a protective casing or external holder is recommended, since machining internal cuts in neodymium magnets is difficult,
Possible threat linked to microscopic shards may arise, when consumed by mistake, which is notable in the context of child safety. Additionally, minuscule fragments from these magnets have the potential to interfere with diagnostics once in the system,
Due to expensive raw materials, their cost is considerably higher,

Precautions

Neodymium magnets can attract to each other, pinch the skin, and cause significant injuries.

Magnets will jump and also touch together within a radius of several to around 10 cm from each other.

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets produce strong magnetic fields that can interfere with the operation of a heart pacemaker. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets have demonstrated their effectiveness up to 80°C or 175°F, the temperature can vary depending on the type, shape, and intended use of the specific magnet.

Dust and powder from neodymium magnets are highly flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

The magnet coating is made of nickel, so be cautious if you have an 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 are the most powerful magnets ever created, and their strength can shock you.

Read the information on our website on how to properly utilize neodymium magnets and avoid significant harm to your body and unintentional damage to the magnets.

Maintain neodymium magnets far from children.

Neodymium magnets are not toys. Do not allow children to play with them. They can be a significant choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing significant injuries, and even death.

Neodymium magnetic are characterized by their fragility, which can cause them to shatter.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. Despite being made of metal as well as coated with a shiny nickel plating, they are not as hard as steel. In the case of a collision between two magnets, there can be a scattering of small sharp metal fragments in different directions. Protecting your eyes is essential.

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. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Avoid bringing neodymium magnets close to a phone or GPS.

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.

Be careful!

In order to illustrate why neodymium magnets are so dangerous, read the article - How very dangerous are very powerful neodymium magnets?.