← previous

Product available shipping tomorrow

MPL 45x25x10 / N38 - lamellar magnet

lamellar magnet

Catalog no 020164

GTIN: 5906301811701

length [±0,1 mm]

45 mm

Width [±0,1 mm]

25 mm

Height [±0,1 mm]

10 mm

Weight

84.38 g

Magnetization Direction

↑ axial

Load capacity

26.49 kg / 259.78 N

Magnetic Induction

306.29 mT

Coating

[NiCuNi] nickel

42.00 ZŁ with VAT / pcs + price for transport

34.15 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

34.15 ZŁ

42.00 ZŁ

price from 600 pcs

32.10 ZŁ

39.48 ZŁ

price from 2200 pcs

30.05 ZŁ

36.96 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 45x25x10 / N38 - lamellar magnet

Specification/characteristics MPL 45x25x10 / N38 - lamellar magnet

properties

values

Cat. no.

020164

GTIN

5906301811701

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

45 mm [±0,1 mm]

Width

25 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

84.38 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

26.49 kg / 259.78 N

Magnetic Induction ~ ?

306.29 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 70x30 / N38 - cylindrical magnet

290.00 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMGZ 16x13x5 [M4] GZ / N38 - magnetic holder external thread

3.89 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MW 7x1.5 / N38 - cylindrical magnet

0.37 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder

200.00 ZŁ / pcs

Flat neodymium magnets min. MPL 45x25x10 / N38 are magnets created from neodymium in a flat form. They are valued for their extremely powerful magnetic properties, which are much stronger than ordinary iron magnets.
Due to their power, flat magnets are regularly used in devices that require exceptional adhesion.
The standard temperature resistance of these magnets is 80°C, but with larger dimensions, this value can increase.
Additionally, flat magnets commonly have special coatings applied to their surfaces, e.g. nickel, gold, or chrome, to increase their durability.
The magnet with the designation MPL 45x25x10 / N38 and a lifting capacity of 26.49 kg with a weight of a mere 84.38 grams, making it the ideal choice for applications requiring a flat shape.

Neodymium flat magnets offer a range of advantages compared to other magnet shapes, which cause them being a perfect solution for many applications:
Contact surface: Due to their flat shape, flat magnets ensure a greater contact surface with adjacent parts, which is beneficial in applications requiring a stronger magnetic connection.
Technology applications: These magnets are often applied in many devices, e.g. sensors, stepper motors, or speakers, where the flat shape is necessary for their operation.
Mounting: Their flat shape makes it easier mounting, particularly when there's a need to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets permits designers a lot of flexibility in placing them in devices, which is more difficult with magnets of other shapes.
Stability: In certain applications, the flat base of the flat magnet may offer better stability, minimizing the risk of shifting or rotating. However, it's important to note that the optimal shape of the magnet depends on the specific project and requirements. In certain cases, other shapes, such as cylindrical or spherical, are more appropriate.

How do magnets work? Magnets attract ferromagnetic materials, such as iron elements, objects containing nickel, cobalt or special alloys of ferromagnetic metals. Additionally, magnets may weaker affect alloys containing iron, such as steel. It’s worth noting that magnets are utilized in various devices and technologies.

Magnets work thanks to the properties of the magnetic field, which arises from the ordered movement of electrons in their structure. Magnetic fields of these objects creates attractive forces, which attract materials containing cobalt or other magnetic materials.

Magnets have two main poles: north (N) and south (S), which interact with each other when they are different. Similar poles, such as two north poles, act repelling on each other.
Due to these properties, magnets are often used in electrical devices, such as motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the greatest strength 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 plastics, glass items, wood and precious stones. Additionally, magnets do not affect certain metals, such as copper items, aluminum materials, 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 exposed to a very 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. Interestingly, strong magnets can interfere with the operation of devices, such as navigational instruments, magnetic stripe cards or medical equipment, like pacemakers. Therefore, it is important to avoid placing magnets near such devices.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from immense strength, neodymium magnets have the following advantages:

They do not lose their strength (of the magnet). After approximately 10 years, their power decreases by only ~1% (theoretically),
They protect against demagnetization caused by external magnetic sources very well,
In other words, thanks to the shiny nickel, gold, or silver finish, the element gains an visually attractive appearance,
They have exceptionally high magnetic induction on the surface of the magnet,
By using an appropriate combination of materials, they can achieve significant thermal resistance, allowing them to operate at temperatures up to 230°C and above...
The ability for precise shaping or customization to specific needs – neodymium magnets can be produced in various forms and dimensions, which amplifies their universality in usage.
Wide application in advanced technologically fields – are used in HDD drives, electric motors, medical apparatus and very highly developed apparatuses.

Disadvantages of neodymium magnets:

They are fragile when subjected to a powerful impact. If the magnets are exposed to impacts, we recommend using magnets in a protective case. The steel housing in the form of a holder protects the magnet from impacts and at the same time increases its overall strength,
High temperatures can reduce the power of neodymium magnets. Typically, after heating above 80°C, most of them experience a permanent loss in strength (although it is dependent on the shape and size). To prevent this, we offer special magnets marked with the symbol [AH], which are highly resistant to high temperatures. They can operate even at temperatures up to 230°C, making them an ideal solution for applications requiring high-temperature operation,
They rust in a humid environment. For outdoor use, we recommend using waterproof magnets, such as those made of rubber or plastic,
The use of a cover or a magnetic holder is recommended due to the limited possibilities of manufacturing threads or complex shapes in the magnet
Potential hazard associated with microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of children's health. Additionally, small elements of these magnets can hinder the diagnostic process in case of swallowing.

Exercise Caution with Neodymium Magnets

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 bounce and touch each other mutually within a distance of several to around 10 cm from each other.

Keep neodymium magnets away from people with pacemakers.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. However, if the magnetic field does not affect the device, it can damage its components or deactivate the device when it is in a magnetic field.

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

The strong magnetic field generated by neodymium magnets can damage 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.

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.

It is essential to maintain neodymium magnets out of reach from youngest children.

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

Neodymium magnets are especially fragile, resulting in damage.

Magnets made of neodymium are delicate as well as will crack if allowed to collide with each other, even from a distance of a few centimeters. 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.

Never bring neodymium magnets close to a phone and GPS.

Neodymium magnets generate strong magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets can demagnetize at high temperatures.

Under specific conditions, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Comparing neodymium magnets to ferrite magnets (found in speakers), they are 10 times stronger, and their strength can shock 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.

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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

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