← previous

Product available shipping tomorrow

MPL 40x10x4 / N38 - lamellar magnet

lamellar magnet

Catalog no 020150

GTIN: 5906301811565

length [±0,1 mm]

40 mm

Width [±0,1 mm]

10 mm

Height [±0,1 mm]

4 mm

Weight

12 g

Magnetization Direction

↑ axial

Load capacity

6.32 kg / 61.98 N

Magnetic Induction

275.57 mT

Coating

[NiCuNi] nickel

3.75 ZŁ with VAT / pcs + price for transport

3.05 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

3.05 ZŁ

3.75 ZŁ

price from 197 pcs

2.87 ZŁ

3.53 ZŁ

price from 820 pcs

2.68 ZŁ

3.30 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Contact us by phone +48 888 99 98 98 or get in touch through our online form the contact section.
Force and structure of magnetic components can be estimated using our our magnetic calculator.

Same-day processing for orders placed before 14:00.

MPL 40x10x4 / N38 - lamellar magnet

Specification/characteristics MPL 40x10x4 / N38 - lamellar magnet

properties

values

Cat. no.

020150

GTIN

5906301811565

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

40 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

12 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

6.32 kg / 61.98 N

Magnetic Induction ~ ?

275.57 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

Shopping tips

Produkt dostępny wysyłka jutro!

MW 5x30 / N38 - cylindrical magnet

3.57 ZŁ / pcs

Produkt dostępny wysyłka jutro!

SM 25x150 [2xM8] / N42 - magnetic separator

393.60 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMC 36x6/4X8 / N38 - cylindrical magnetic holder

21.49 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MW 45x20 / N38 - cylindrical magnet

127.50 ZŁ / pcs

Neodymium flat magnets i.e. MPL 40x10x4 / N38 are magnets made from neodymium in a flat form. They are known for their extremely powerful magnetic properties, which surpass traditional iron magnets.
Thanks to their high strength, flat magnets are regularly applied in structures that need very strong attraction.
Typical temperature resistance of flat magnets is 80 °C, but depending on the dimensions, this value grows.
Moreover, flat magnets usually have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, to increase their corrosion resistance.
The magnet with the designation MPL 40x10x4 / N38 and a lifting capacity of 6.32 kg with a weight of only 12 grams, making it the perfect choice for applications requiring a flat shape.

Neodymium flat magnets provide a range of advantages versus other magnet shapes, which lead to them being an ideal choice for a multitude of projects:
Contact surface: Due to their flat shape, flat magnets guarantee a greater contact surface with adjacent parts, which is beneficial in applications requiring a stronger magnetic connection.
Technology applications: They are often utilized in many devices, such as sensors, stepper motors, or speakers, where the thin and wide shape is crucial for their operation.
Mounting: Their flat shape simplifies mounting, especially when it is necessary to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets allows designers a lot of flexibility in arranging them in structures, 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. However, one should remember that the optimal shape of the magnet depends on the given use and requirements. In certain cases, other shapes, like cylindrical or spherical, are a better choice.

How do magnets work? Magnets attract ferromagnetic materials, such as iron, nickel, materials with cobalt and alloys of metals with magnetic properties. Moreover, magnets may lesser affect some other metals, such as steel. Magnets are used in many fields.

The operation of magnets is based on the properties of the magnetic field, which is generated by the movement of electric charges within their material. The magnetic field of these objects creates attractive interactions, which affect objects made of cobalt or other magnetic materials.

Magnets have two main 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 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 powerful magnetic fields. Moreover, the strength of a magnet depends on its size and the materials used.

Magnets do not attract plastic, glass, wooden materials or precious stones. Furthermore, magnets do not affect certain metals, such as copper, aluminum, items made of 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 navigational instruments, magnetic stripe cards and even electronic devices sensitive to magnetic fields. Therefore, it is important to avoid placing magnets near such devices.

A neodymium magnet N52 and N50 is a powerful and strong metallic component with the shape of a plate, featuring strong holding power and universal applicability. Competitive price, availability, stability and multi-functionality.

Advantages and disadvantages of neodymium magnets NdFeB.

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

They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
They are extremely resistant to demagnetization caused by external field interference,
The use of a decorative gold surface provides a refined finish,
They exhibit elevated levels of magnetic induction near the outer area of the magnet,
These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to profile),
With the option for tailored forming and precise design, these magnets can be produced in numerous shapes and sizes, greatly improving engineering flexibility,
Significant impact in cutting-edge sectors – they are utilized in hard drives, electric motors, clinical machines along with other advanced devices,
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 heavy impact. If the magnets are exposed to mechanical hits, they should be placed in a metal holder. The steel housing, in the form of a holder, protects the magnet from cracks , and at the same time reinforces its overall strength,
They lose strength at increased temperatures. Most neodymium magnets experience permanent loss in strength when heated above 80°C (depending on the dimensions 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 recommended to use sealed magnets made of synthetic coating for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the difficulty in manufacturing fine shapes directly in the magnet,
Potential hazard related to magnet particles may arise, especially if swallowed, which is notable in the health of young users. Additionally, small elements from these magnets can interfere with diagnostics once in the system,
In cases of tight budgets, neodymium magnet cost may not be economically viable,

Exercise Caution with Neodymium Magnets

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 should not be around youngest children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Neodymium magnets are particularly delicate, resulting in shattering.

Neodymium magnets are characterized by considerable fragility. Magnets made of neodymium are made of metal and coated with a shiny nickel, but they are not as durable as steel. At the moment of connection between the magnets, small metal fragments can be dispersed in different directions.

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

Neodymium magnets produce strong magnetic fields that can destroy 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. Do not forget to keep neodymium magnets away from these electronic devices.

Neodymium magnets can demagnetize at high temperatures.

While Neodymium magnets can demagnetize at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

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.

Neodymium magnets are over 10 times more powerful than ferrite magnets (the ones in speakers), and their power can surprise 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.

Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.

Magnets attract each other within a distance of several to around 10 cm from each other. Don't put your fingers in the path of magnet attraction, because a serious injury may occur. Depending on how massive the neodymium magnets are, they can lead to a cut or a fracture.

Avoid bringing neodymium magnets close to a phone or GPS.

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.

Be careful!

So that know how powerful neodymium magnets are and why they are so dangerous, read the article - Dangerous very strong neodymium magnets.