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MPL 30x15x2 / N38 - lamellar magnet

lamellar magnet

Catalog no 020140

GTIN: 5906301811466

length [±0,1 mm]

30 mm

Width [±0,1 mm]

15 mm

Height [±0,1 mm]

2 mm

Weight

6.75 g

Magnetization Direction

↑ axial

Load capacity

3.35 kg / 32.85 N

Magnetic Induction

115.11 mT

Coating

[NiCuNi] nickel

3.15 ZŁ with VAT / pcs + price for transport

2.56 ZŁ net + 23% VAT / pcs

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MPL 30x15x2 / N38 - lamellar magnet

Specification/characteristics MPL 30x15x2 / N38 - lamellar magnet

properties

values

Cat. no.

020140

GTIN

5906301811466

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

30 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

6.75 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

3.35 kg / 32.85 N

Magnetic Induction ~ ?

115.11 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 30x15x2 / N38 are magnets made from neodymium in a flat form. They are known for their very strong magnetic properties, which are much stronger than standard iron magnets.
Thanks to their mighty power, flat magnets are commonly applied in products that need strong holding power.
Typical temperature resistance of these magnets is 80 °C, but with larger dimensions, this value grows.
In addition, flat magnets usually have special coatings applied to their surfaces, such as nickel, gold, or chrome, to improve their durability.
The magnet with the designation MPL 30x15x2 / N38 i.e. a magnetic force 3.35 kg with a weight of just 6.75 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 various uses:
Contact surface: Thanks to their flat shape, flat magnets guarantee a greater contact surface with adjacent parts, which is beneficial in applications needing a stronger magnetic connection.
Technology applications: These magnets are often applied in different devices, such as sensors, stepper motors, or speakers, where the thin and wide shape is crucial for their operation.
Mounting: The flat form's flat shape makes mounting, particularly when there's a need to attach the magnet to another surface.
Design flexibility: The flat shape of the magnets gives the possibility creators greater flexibility in placing them in devices, which can be more difficult with magnets of other shapes.
Stability: In some 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 depends on the given use and requirements. In some cases, other shapes, like cylindrical or spherical, may be a better choice.

How do magnets work? Magnets attract objects made of ferromagnetic materials, such as iron, nickel, materials with cobalt and 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 their magnetic field, which is generated by the movement of electric charges within their material. Magnetic fields of magnets creates attractive forces, 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 oppositely oriented. Similar poles, such as two north poles, repel each other.
Due to these properties, magnets are often used in magnetic technologies, e.g. 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 dimensions and the material it is made of.

Magnets do not attract plastics, glass items, wood or most gemstones. Additionally, magnets do not affect certain metals, such as copper items, aluminum materials, copper, aluminum, and gold. Although these metals conduct electricity, do not exhibit ferromagnetic properties, meaning that they remain unaffected by a magnet, 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. 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, magnetic stripe cards and even electronic devices sensitive to magnetic fields. Therefore, it is important to exercise caution when using magnets.

A neodymium magnet in classes N52 and N50 is a strong and extremely powerful metallic component in the form of a plate, providing strong holding power and broad usability. Good price, availability, resistance and universal usability.

Advantages and disadvantages of neodymium magnets NdFeB.

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

They have unchanged lifting capacity, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
They protect against demagnetization induced by ambient electromagnetic environments effectively,
By applying a bright layer of gold, the element gains a sleek look,
They have very high 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 design),
With the option for customized forming and targeted design, these magnets can be produced in numerous shapes and sizes, greatly improving application potential,
Key role in new technology industries – they find application in HDDs, electric motors, diagnostic apparatus along with high-tech tools,
Compactness – despite their small size, they generate strong force, making them ideal for precision applications

Disadvantages of neodymium magnets:

They can break when subjected to a powerful impact. If the magnets are exposed to shocks, it is advisable to use in a metal holder. The steel housing, in the form of a holder, protects the magnet from breakage and strengthens its overall resistance,
Magnets lose power when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible field weakening (influenced by the magnet’s structure). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
Due to corrosion risk in humid conditions, it is common to use sealed magnets made of synthetic coating for outdoor use,
Limited ability to create internal holes in the magnet – the use of a magnetic holder is recommended,
Health risk due to small fragments may arise, if ingested accidentally, which is notable in the protection of children. It should also be noted that minuscule fragments from these assemblies may disrupt scanning once in the system,
Due to the price of neodymium, their cost is considerably higher,

Be Cautious with Neodymium Magnets

Neodymium magnetic are noted for their fragility, which can cause them to shatter.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. They are coated with a shiny nickel plating similar to steel, but they are not as hard. 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.

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

You should maintain neodymium magnets at a safe distance from the wallet, computer, and TV.

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, or other devices. They can also damage devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

Do not bring neodymium magnets close to GPS and smartphones.

Magnetic fields can interfere with compasses and magnetometers used in aviation and maritime navigation, as well as internal compasses of smartphones and GPS devices. There are neodymium magnets in every smartphone, for example, in the microphone and speakers.

Dust and powder from neodymium magnets are 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 can demagnetize at high temperatures.

While Neodymium magnets can lose their magnetic properties 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.

Neodymium magnets can attract to each other, pinch the skin, and cause significant injuries.

Magnets will attract each other within a distance of several to around 10 cm from each other. Remember not to insert fingers between magnets or in their path when attract. Magnets, depending on their size, can even cut off a finger or alternatively there can be a significant pressure or a fracture.

Neodymium magnets are the most powerful magnets ever invented. Their strength can surprise you.

Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.

Maintain neodymium magnets far from youngest children.

Neodymium magnets are not toys. Do not allow children to play with them. They can be a significant 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 not recommended for 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.

Pay attention!

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