← previous

Product available shipping tomorrow

MPL 7x7x3 / N38 - lamellar magnet

lamellar magnet

Catalog no 020176

GTIN: 5906301811824

length [±0,1 mm]

7 mm

Width [±0,1 mm]

7 mm

Height [±0,1 mm]

3 mm

Weight

1.1 g

Magnetization Direction

↑ axial

Load capacity

1.66 kg / 16.28 N

Magnetic Induction

376.99 mT

Coating

[NiCuNi] nickel

0.47 ZŁ with VAT / pcs + price for transport

0.38 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.38 ZŁ

0.47 ZŁ

price from 1579 pcs

0.36 ZŁ

0.44 ZŁ

price from 6579 pcs

0.33 ZŁ

0.41 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Give us a call +48 888 99 98 98 or drop us a message via form the contact section.
Lifting power as well as shape of magnetic components can be verified on our magnetic calculator.

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

MPL 7x7x3 / N38 - lamellar magnet

Specification/characteristics MPL 7x7x3 / N38 - lamellar magnet

properties

values

Cat. no.

020176

GTIN

5906301811824

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

7 mm [±0,1 mm]

Width

7 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

1.1 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

1.66 kg / 16.28 N

Magnetic Induction ~ ?

376.99 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!

MPL 25x15x2 / N38 - lamellar magnet

3.49 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MW 10x3 / N38 - cylindrical magnet

0.87 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMH 42x9x46 [M6] / N38 - magnetic holder with hook

35.99 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMT 20x25 white / N38 - board holder

3.49 ZŁ / pcs

Neodymium flat magnets i.e. MPL 7x7x3 / N38 are magnets made from neodymium in a flat form. They are known for their exceptionally potent magnetic properties, which surpass traditional iron magnets.
Due to their power, flat magnets are commonly used in structures that need very strong attraction.
Most common temperature resistance of these magnets is 80 °C, but depending on the dimensions, this value rises.
Additionally, flat magnets usually have different coatings applied to their surfaces, such as nickel, gold, or chrome, for enhancing their strength.
The magnet with the designation MPL 7x7x3 / N38 i.e. a magnetic force 1.66 kg with a weight of only 1.1 grams, making it the perfect choice for projects needing a flat magnet.

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 ensure a greater contact surface with adjacent parts, which is beneficial in applications requiring a stronger magnetic connection.
Technology applications: They are often applied in many devices, such as sensors, stepper motors, or speakers, where the thin and wide shape is crucial for their operation.
Mounting: This form's flat shape makes it easier mounting, especially when it is required to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets allows creators greater flexibility in arranging them in structures, which can be more difficult with magnets of more complex shapes.
Stability: In some applications, the flat base of the flat magnet may provide better stability, reducing the risk of sliding 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, may be more appropriate.

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

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. Magnetic fields of these objects creates attractive interactions, which attract objects made of cobalt or other magnetic materials.

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, repel each other.
Due to these properties, 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 powerful magnetic fields. Additionally, the strength of a magnet depends on its dimensions and the materials used.

Magnets do not attract plastics, glass, wood or precious stones. Additionally, 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 exposed to a very strong magnetic field.
It’s worth noting 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. Interestingly, strong magnets can interfere with the operation of devices, such as compasses, credit cards or electronic devices sensitive to magnetic fields. Therefore, it is important to avoid placing magnets near such devices.

A flat magnet with classification N50 and N52 is a powerful and strong magnetic piece designed as a plate, providing high force and broad usability. Good price, fast shipping, resistance and multi-functionality.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their tremendous field intensity, neodymium magnets offer the following advantages:

They retain their magnetic properties for around 10 years – the loss is just ~1% (in theory),
They are highly resistant to demagnetization caused by external magnetic sources,
Because of the reflective layer of nickel, the component looks visually appealing,
They have extremely strong magnetic induction on the surface of the magnet,
With the right combination of compounds, they reach increased thermal stability, enabling operation at or above 230°C (depending on the form),
Thanks to the possibility in shaping and the capability to adapt to unique requirements, neodymium magnets can be created in diverse shapes and sizes, which expands their usage potential,
Significant impact in advanced technical fields – they find application in data storage devices, electromechanical systems, healthcare devices or even other advanced devices,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in small dimensions, which makes them useful in miniature devices

Disadvantages of magnetic elements:

They are fragile when subjected to a powerful impact. If the magnets are exposed to physical collisions, it is suggested to place them in a steel housing. The steel housing, in the form of a holder, protects the magnet from fracture and additionally enhances its overall durability,
They lose strength at high 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,
Magnets exposed to moisture can degrade. Therefore, for outdoor applications, we advise waterproof types made of plastic,
The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is risky,
Safety concern related to magnet particles may arise, especially if swallowed, which is important in the health of young users. Additionally, miniature parts from these devices might complicate medical imaging when ingested,
Due to a complex production process, their cost is considerably higher,

Precautions with Neodymium Magnets

Maintain neodymium magnets far from children.

Remember that neodymium magnets are not toys. Do not allow children to play with them. In the case of swallowing multiple magnets simultaneously, they can attract to each other through the intestinal walls. In the worst case scenario, this can lead to death.

Neodymium magnets are extremely fragile, resulting in breaking.

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 collision between the magnets, small metal fragments can be dispersed in different directions.

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.

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

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. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Neodymium magnets are the strongest magnets ever invented. 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.

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.

If joining of neodymium magnets is not under control, at that time they may crumble and also crack. You can't move them to each other. At a distance less than 10 cm you should have them very firmly.

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 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.

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.

Neodymium magnets can demagnetize at high temperatures.

Although magnets have demonstrated their effectiveness up to 80°C or 175°F, the temperature can vary depending on the type, shape, and intended use of the specific magnet.

Safety rules!

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