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MPL 30x10x8 / N38 - lamellar magnet

lamellar magnet

Catalog no 020139

GTIN: 5906301811459

length [±0,1 mm]

30 mm

Width [±0,1 mm]

10 mm

Height [±0,1 mm]

8 mm

Weight

18 g

Magnetization Direction

↑ axial

Load capacity

10.94 kg / 107.28 N

Magnetic Induction

427.56 mT

Coating

[NiCuNi] nickel

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6.50 ZŁ net + 23% VAT / pcs

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MPL 30x10x8 / N38 - lamellar magnet

Specification/characteristics MPL 30x10x8 / N38 - lamellar magnet

properties

values

Cat. no.

020139

GTIN

5906301811459

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

30 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

18 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

10.94 kg / 107.28 N

Magnetic Induction ~ ?

427.56 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 30x10x8 / N38 are magnets created from neodymium in a rectangular form. They are valued for their exceptionally potent magnetic properties, which outshine traditional iron magnets.
Due to their strength, flat magnets are commonly used in devices that need strong holding power.
The standard temperature resistance of these magnets is 80°C, but depending on the dimensions, this value rises.
Additionally, flat magnets often have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, to improve their strength.
The magnet labeled MPL 30x10x8 / N38 i.e. a lifting capacity of 10.94 kg weighing a mere 18 grams, making it the excellent choice for applications requiring a flat shape.

Neodymium flat magnets present a range of advantages versus other magnet shapes, which cause them being a perfect solution for a multitude of projects:
Contact surface: Due to their flat shape, flat magnets guarantee a greater contact surface with other components, which is beneficial in applications needing a stronger magnetic connection.
Technology applications: These are often used 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 simplifies mounting, especially when there's a need to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets gives the possibility designers a lot of flexibility in arranging them in devices, which can be more difficult with magnets of other shapes.
Stability: In certain applications, the flat base of the flat magnet may offer better stability, reducing the risk of shifting or rotating. However, one should remember that the optimal shape of the magnet is dependent on the specific project and requirements. In certain cases, other shapes, such as cylindrical or spherical, may be a better choice.

Magnets attract objects made of ferromagnetic materials, such as iron, objects containing nickel, cobalt or 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 is generated by the movement of electric charges within their material. The magnetic field of magnets creates attractive forces, which affect materials containing iron or other ferromagnetic substances.

Magnets have two poles: north (N) and south (S), which attract each other when they are oppositely oriented. Similar poles, such as two north poles, repel 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 highest power of attraction, making them indispensable for applications requiring strong magnetic fields. Additionally, the strength of a magnet depends on its size and the materials used.

Not all materials react to magnets, and examples of such substances are plastic, glass, wooden materials and most gemstones. Furthermore, magnets do not affect certain metals, such as copper, aluminum, 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 should be noted 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 under such conditions, the magnet stops being magnetic. Additionally, strong magnets can interfere with the operation of devices, such as compasses, magnetic stripe cards and even electronic devices sensitive to magnetic fields. Therefore, it is important to avoid placing magnets near such devices.

A neodymium plate magnet in classes N50 and N52 is a strong and powerful magnetic piece with the shape of a plate, that provides strong holding power and versatile application. Competitive price, availability, ruggedness and universal usability.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Besides their stability, neodymium magnets are valued for these benefits:

They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
They protect against demagnetization induced by ambient electromagnetic environments very well,
Thanks to the glossy finish and silver coating, they have an visually attractive appearance,
They have extremely strong magnetic induction on the surface of the magnet,
Neodymium magnets are known for strong magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the magnetic form),
Thanks to the flexibility in shaping and the capability to adapt to individual requirements, neodymium magnets can be created in different geometries, which broadens their application range,
Important function in advanced technical fields – they are utilized in computer drives, electric drives, healthcare devices as well as technologically developed systems,
Thanks to their concentrated strength, small magnets offer high magnetic performance, in miniature format,

Disadvantages of NdFeB magnets:

They may fracture when subjected to a sudden impact. If the magnets are exposed to external force, we recommend in a protective case. The steel housing, in the form of a holder, protects the magnet from breakage and additionally strengthens its overall robustness,
They lose power at increased temperatures. Most neodymium magnets experience permanent loss 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,
They rust in a humid environment – during outdoor use, we recommend using waterproof magnets, such as those made of non-metallic materials,
Limited ability to create precision features in the magnet – the use of a magnetic holder is recommended,
Possible threat due to small fragments may arise, if ingested accidentally, which is crucial in the family environments. It should also be noted that minuscule fragments from these products may disrupt scanning after being swallowed,
High unit cost – neodymium magnets are costlier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Safety Precautions

The magnet is coated with nickel. Therefore, exercise caution 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets should not be in the vicinity youngest 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.

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 radius of several to around 10 cm from each other.

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

Neodymium magnets are a source of strong magnetic fields that cause interference with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets can become demagnetized at high temperatures.

Despite the fact that 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.

Neodymium magnets are the most powerful magnets ever created, and their power 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 disruption to the magnets.

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 not recommended for people with pacemakers.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Neodymium magnets are delicate as well as can easily break as well as shatter.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. Despite being made of metal and 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.

Make sure not to bring neodymium magnets close to the TV, wallet, and computer HDD.

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 devices like video players, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

Safety precautions!

In order for you to know how powerful neodymium magnets are and why they are so dangerous, read the article - Dangerous very strong neodymium magnets.