← previous

Product available shipping tomorrow

MPL 25x15x2 / N38 - lamellar magnet

lamellar magnet

Catalog no 020392

GTIN: 5906301811893

length [±0,1 mm]

25 mm

Width [±0,1 mm]

15 mm

Height [±0,1 mm]

2 mm

Weight

5.63 g

Magnetization Direction

↑ axial

Load capacity

3.06 kg / 30.01 N

Magnetic Induction

120.03 mT

Coating

[NiCuNi] nickel

3.49 ZŁ with VAT / pcs + price for transport

2.84 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.84 ZŁ

3.49 ZŁ

price from 600 pcs

2.67 ZŁ

3.28 ZŁ

price from 2200 pcs

2.50 ZŁ

3.07 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to negotiate the price?

Call us +48 22 499 98 98 or write via form on the contact page. Test the magnet's power with our power calculator.

Orders placed by 14:00 are shipped the same day.

MPL 25x15x2 / N38 - lamellar magnet

Specification/characteristics MPL 25x15x2 / N38 - lamellar magnet

properties

values

Cat. no.

020392

GTIN

5906301811893

Production/Distribution

Dhit sp. z o.o.

Country of origin

Polska / Chiny / Niemcy

Customs code

85059029

length

25 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

5.63 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

3.06 kg / 30.01 N

Magnetic Induction ~ ?

120.03 mT

Coating

[NiCuNi] nickel

tolerancja wykonania

± 0.1 mm

Magnetic properties of material N38

properties

values

units

remenance Br [Min. - Max.] ?

12.2-12.6

kGs

remenance Br [Min. - Max.] ?

1220-1260

coercivity bHc ?

10.8-11.5

kOe

coercivity bHc ?

860-915

kA/m

actual internal force iHc

≥ 12

kOe

actual internal force iHc

≥ 955

kA/m

energy density [Min. - Max.] ?

36-38

BH max MGOe

energy density [Min. - Max.] ?

287-303

BH max KJ/m

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!

NCM 40x13.5x5 / N38 - channel magnetic holder

14.19 ZŁ / pcs

Produkt dostępny wysyłka jutro!

SM 32x425 [2xM8] / N52 - magnetic separator

1 340.70 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMGW 25x17x8 [M5] GW / N38 - magnetic holder internal thread

11.91 ZŁ / pcs

Produkt dostępny wysyłka jutro!

SM 25x350 [2xM8] / N42 - magnetic separator

984.00 ZŁ / pcs

Neodymium flat magnets i.e. MPL 25x15x2 / N38 are magnets made from neodymium in a flat form. They are valued for their extremely powerful magnetic properties, which outshine standard iron magnets.
Thanks to their high strength, flat magnets are frequently applied in structures that require exceptional adhesion.
Most common temperature resistance of these magnets is 80 °C, but with larger dimensions, this value grows.
In addition, flat magnets commonly have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, to improve their corrosion resistance.
The magnet named MPL 25x15x2 / N38 i.e. a magnetic strength ${capacity} kg which weighs a mere ${weight} grams, making it the ideal choice for applications requiring a flat shape.

Neodymium flat magnets provide a range of advantages versus other magnet shapes, which make them being the best choice for a multitude of projects:
Contact surface: Due to their flat shape, flat magnets guarantee a greater contact surface with adjacent parts, which can be beneficial in applications needing a stronger magnetic connection.
Technology applications: These magnets are often utilized in different devices, e.g. sensors, stepper motors, or speakers, where the thin and wide shape is important 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 gives the possibility designers a lot of flexibility in arranging them in structures, which can be 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 sliding or rotating. However, one should remember that the optimal shape of the magnet depends on the specific application and requirements. In some cases, other shapes, such as cylindrical or spherical, are a better choice.

Attracted by magnets are objects made of ferromagnetic materials, such as iron, objects containing nickel, materials with cobalt or special alloys of ferromagnetic metals. Moreover, magnets may weaker affect some other metals, such as steel. Magnets are used in many fields.

The operation of magnets is based on the properties of their magnetic field, which arises from the ordered movement of electrons in their structure. The magnetic field of magnets creates attractive forces, which affect materials containing cobalt or other magnetic materials.

Magnets have two poles: north (N) and south (S), which attract each other when they are different. Similar poles, e.g. two north poles, act repelling on each other.
Thanks to this principle of operation, magnets are regularly 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 items, wooden materials or precious stones. Furthermore, magnets do not affect most metals, such as copper items, aluminum, copper, aluminum, and 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 under such conditions, the magnet stops being magnetic. Additionally, strong magnets can interfere with the operation of devices, such as compasses, credit cards and even medical equipment, like pacemakers. Therefore, it is important to exercise caution when using magnets.

Advantages and disadvantages of neodymium magnets

Neodymium magnets, also known as NdFeB magnets, are currently the strongest permanent magnets available on the market. Their exceptional magnetic properties make them suitable for various industries, technologies, and everyday life. Below are the key advantages:

Immense attractive force: Even small neodymium magnets generate a very strong magnetic field.
High coercivity: They are resistant to demagnetization by external magnetic fields.
Wide operating temperature range: Standard neodymium magnets operate up to 80°C, with special versions up to 230°C.
Variety of shapes and sizes: Available in many forms, making them easy to adapt to specific applications.
Relatively low price compared to strength: They offer the best strength-to-price ratio among all magnets.
Longevity: With proper use, they retain their magnetic properties for many years.
Versatility of applications: From electric motors to speakers, separators, toys, and jewelry.

Despite numerous advantages, neodymium magnets also have certain disadvantages to consider:

Brittleness: They are hard but brittle and prone to cracking or chipping upon impact.
Limited operating temperature for standard versions: Above the Curie temperature, they lose their magnetic properties.
Strong magnetic field can be dangerous: They can damage electronics, magnetic cards, and pose a risk of attracting metal objects with great force.
Difficulties in mechanical processing: Due to their hardness and brittleness, processing them is complex.

Exercise Caution with Neodymium Magnets

Magnets made of neodymium are noted for being fragile, which can cause them to shatter.

Neodymium magnetic are highly delicate, and by joining them in an uncontrolled manner, they will break. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of connection between the magnets, small metal fragments can be dispersed in different directions.

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

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

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

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

The magnet coating is made of nickel, so be cautious 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 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.

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.

Neodymium magnets are among the strongest magnets on Earth. The astonishing force they generate between each other 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.

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. They can also damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.

Neodymium magnets should not be near people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are strong neodymium magnets?.