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MPL 15x3x6 / N38 - lamellar magnet

lamellar magnet

Catalog no 020122

GTIN: 5906301811282

length [±0,1 mm]

15 mm

Width [±0,1 mm]

3 mm

Height [±0,1 mm]

6 mm

Weight

2.03 g

Magnetization Direction

↑ axial

Load capacity

3.18 kg / 31.19 N

Magnetic Induction

543.23 mT

Coating

[NiCuNi] nickel

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0.59 ZŁ net + 23% VAT / pcs

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MPL 15x3x6 / N38 - lamellar magnet

Specification/characteristics MPL 15x3x6 / N38 - lamellar magnet

properties

values

Cat. no.

020122

GTIN

5906301811282

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

15 mm [±0,1 mm]

Width

3 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

2.03 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

3.18 kg / 31.19 N

Magnetic Induction ~ ?

543.23 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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Flat neodymium magnets min. MPL 15x3x6 / N38 are magnets created from neodymium in a rectangular form. They are appreciated for their very strong magnetic properties, which outshine standard iron magnets.
Due to their power, flat magnets are frequently applied in products that require strong holding power.
Typical temperature resistance of these magnets is 80 °C, but depending on the dimensions, this value can increase.
Moreover, flat magnets usually have special coatings applied to their surfaces, such as nickel, gold, or chrome, for enhancing their strength.
The magnet with the designation MPL 15x3x6 / N38 i.e. a magnetic force 3.18 kg weighing just 2.03 grams, making it the ideal choice for applications requiring a flat shape.

Neodymium flat magnets present a range of advantages compared to other magnet shapes, which lead to them being an ideal choice for many applications:
Contact surface: Thanks to their flat shape, flat magnets guarantee a greater contact surface with other components, which is beneficial in applications requiring a stronger magnetic connection.
Technology applications: These magnets are often applied in various devices, e.g. sensors, stepper motors, or speakers, where the flat shape is crucial for their operation.
Mounting: This form's flat shape makes it easier mounting, particularly when it is necessary to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets allows creators greater flexibility in placing them in structures, which is more difficult with magnets of other shapes.
Stability: In certain applications, the flat base of the flat magnet can 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 specific application and requirements. In some cases, other shapes, like cylindrical or spherical, are more appropriate.

How do magnets work? Magnets attract objects made of ferromagnetic materials, such as iron, nickel, materials with cobalt and special alloys of ferromagnetic metals. Moreover, magnets may lesser 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 arises from the ordered movement of electrons in their structure. The magnetic field of these objects creates attractive interactions, which affect objects made of nickel or other ferromagnetic substances.

Magnets have two poles: north (N) and south (S), which attract 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 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 indispensable for applications requiring strong magnetic fields. Moreover, the strength of a magnet depends on its dimensions and the materials used.

Magnets do not attract plastic, glass, wooden materials or precious stones. Moreover, magnets do not affect certain metals, such as copper, aluminum, items made of gold. These metals, although they are conductors of 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 should be noted that high temperatures can weaken the magnet's effect. Every magnetic material has its Curie point, 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, magnetic stripe cards or medical equipment, like pacemakers. For this reason, it is important to exercise caution when using magnets.

A flat magnet N50 and N52 is a powerful and highly strong metal object in the form of a plate, providing strong holding power and universal applicability. Very good price, availability, durability and universal usability.

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

They virtually do not lose power, because even after 10 years, the decline in efficiency is only ~1% (in laboratory conditions),
They remain magnetized despite exposure to magnetic noise,
Because of the lustrous layer of nickel, the component looks aesthetically refined,
They exhibit superior levels of magnetic induction near the outer area of the magnet,
Neodymium magnets are known for very high magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the geometry),
With the option for tailored forming and targeted design, these magnets can be produced in various shapes and sizes, greatly improving application potential,
Important function in advanced technical fields – they are used in data storage devices, electromechanical systems, diagnostic apparatus or even high-tech tools,
Relatively small size with high magnetic force – neodymium magnets offer intense magnetic field in small dimensions, which allows for use in miniature devices

Disadvantages of rare earth magnets:

They may fracture when subjected to a heavy impact. If the magnets are exposed to external force, we recommend in a metal holder. The steel housing, in the form of a holder, protects the magnet from fracture and enhances its overall durability,
They lose power at extreme temperatures. Most neodymium magnets experience permanent degradation in strength when heated above 80°C (depending on the shape and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of synthetic coating for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the limitations in manufacturing threads directly in the magnet,
Safety concern from tiny pieces may arise, when consumed by mistake, which is important in the health of young users. Additionally, minuscule fragments from these products might complicate medical imaging once in the system,
High unit cost – neodymium magnets are pricier than other types of magnets (e.g., ferrite), which increases the cost of large-scale applications

Safety Precautions

Neodymium magnets can demagnetize at high temperatures.

Despite the general resilience of magnets, their ability to maintain their magnetic potency can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

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.

Keep neodymium magnets away from the wallet, computer, and TV.

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, etc. devices. They can also destroy videos, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

Magnets should not be treated as toys. Therefore, it is not recommended for youngest children to have access to them.

Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.

Neodymium magnets jump and also clash mutually within a distance of several to almost 10 cm from each other.

Neodymium magnets are incredibly delicate, they easily break as well as can become damaged.

Neodymium magnets are highly fragile, and by joining them in an uncontrolled manner, they will crack. 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.

Neodymium magnets are among the most powerful magnets on Earth. The astonishing force they generate between each other can surprise 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.

Under no circumstances should neodymium magnets be brought close to GPS and smartphones.

Strong fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.

If you have a nickel allergy, avoid contact with neodymium magnets.

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.

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.

Pay attention!

So you are aware of why neodymium magnets are so dangerous, see the article titled How very dangerous are powerful neodymium magnets?.