← previous

Product available shipping tomorrow

MPL 30x10x8 / N38 - lamellar magnet

lamellar magnet

Catalog no 020139

GTIN: 5906301811459

length [±0,1 mm]

30 mm

Width [±0,1 mm]

10 mm

Height [±0,1 mm]

8 mm

Weight

18 g

Magnetization Direction

↑ axial

Load capacity

10.94 kg / 107.28 N

Magnetic Induction

427.56 mT

Coating

[NiCuNi] nickel

10.71 ZŁ with VAT / pcs + price for transport

8.71 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

8.71 ZŁ

10.71 ZŁ

price from 100 pcs

8.19 ZŁ

10.07 ZŁ

price from 300 pcs

7.66 ZŁ

9.42 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Call us +48 22 499 98 98 or send us a note via form the contact section.
Specifications and shape of a neodymium magnet can be estimated with our magnetic calculator.

Order by 14:00 and we’ll ship today!

MPL 30x10x8 / N38 - lamellar magnet

Specification/characteristics MPL 30x10x8 / N38 - lamellar magnet

properties

values

Cat. no.

020139

GTIN

5906301811459

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

length

30 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

18 g [±0,1 mm]

Magnetization Direction

↑ axial

Load capacity ~ ?

10.94 kg / 107.28 N

Magnetic Induction ~ ?

427.56 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!

NC kulka fi 2 cale / N52 - neocube

1 200.00 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 - search holder

300.00 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MP 36.2x11/6x7.5 / N38 - ring magnet

35.01 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MW 10x30 / N38 - cylindrical magnet

6.38 ZŁ / pcs

Neodymium flat magnets min. MPL 30x10x8 / N38 are magnets created from neodymium in a flat form. They are known for their exceptionally potent magnetic properties, which outshine standard ferrite magnets.
Due to their power, flat magnets are commonly used in structures that need exceptional adhesion.
The standard temperature resistance of flat magnets is 80 °C, but depending on the dimensions, this value grows.
Additionally, flat magnets commonly have different coatings applied to their surfaces, e.g. nickel, gold, or chrome, to increase their durability.
The magnet labeled MPL 30x10x8 / N38 i.e. a magnetic force 10.94 kg which weighs only 18 grams, making it the excellent choice for projects needing a flat magnet.

Neodymium flat magnets offer a range of advantages compared to other magnet shapes, which make them being a perfect solution for a multitude of projects:
Contact surface: Due to their flat shape, flat magnets ensure a larger contact surface with adjacent parts, which can be beneficial in applications requiring a stronger magnetic connection.
Technology applications: These are often used in various devices, e.g. sensors, stepper motors, or speakers, where the flat shape is crucial for their operation.
Mounting: This form's flat shape makes mounting, particularly when it is necessary to attach the magnet to some surface.
Design flexibility: The flat shape of the magnets allows creators a lot of flexibility in placing them in devices, which is more difficult with magnets of more complex shapes.
Stability: In certain applications, the flat base of the flat magnet may provide better stability, minimizing the risk of shifting or rotating. However, one should remember that the optimal shape of the magnet is dependent on the specific project and requirements. In certain cases, other shapes, such as cylindrical or spherical, are more appropriate.

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

Magnets work thanks to the properties of their magnetic field, which arises from the ordered movement of electrons in their structure. The magnetic field of magnets creates attractive interactions, which attract 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, act repelling on each other.
Thanks to this principle of operation, magnets are commonly used in magnetic technologies, e.g. motors, speakers, sensors, or magnetic locks. Neodymium magnets stand out with the highest power of attraction, making them perfect 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 plastic, glass, wood or precious stones. Additionally, magnets do not affect most metals, such as copper, aluminum materials, 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’s worth noting that high temperatures can weaken the magnet's effect. The Curie temperature is specific to each type of magnet, meaning that under such conditions, the magnet stops being magnetic. Interestingly, strong magnets can interfere with the operation of devices, such as navigational instruments, credit cards and even electronic devices sensitive to magnetic fields. For this reason, it is important to avoid placing magnets near such devices.

A neodymium plate magnet in classes N52 and N50 is a powerful and strong magnetic product in the form of a plate, providing strong holding power and universal applicability. Very good price, fast shipping, ruggedness and versatility.

Advantages and disadvantages of neodymium magnets NdFeB.

Apart from their superior magnetism, neodymium magnets have these key benefits:

They virtually do not lose power, because even after ten years, the performance loss is only ~1% (based on calculations),
They are very resistant to demagnetization caused by external magnetic sources,
Thanks to the glossy finish and nickel coating, they have an elegant appearance,
The outer field strength of the magnet shows elevated magnetic properties,
Thanks to their high temperature resistance, they can operate (depending on the geometry) even at temperatures up to 230°C or more,
The ability for accurate shaping or adaptation to individual needs – neodymium magnets can be manufactured in multiple variants of geometries, which enhances their versatility in applications,
Significant impact in advanced technical fields – they find application in computer drives, electric motors, diagnostic apparatus along with sophisticated instruments,
Relatively small size with high magnetic force – neodymium magnets offer intense magnetic field in tiny dimensions, which allows for use in small systems

Disadvantages of neodymium magnets:

They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to physical collisions, it is advisable to use in a protective case. The steel housing, in the form of a holder, protects the magnet from damage while also reinforces its overall resistance,
Magnets lose pulling force when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible performance loss (influenced by the magnet’s dimensions). 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 complex details in the magnet – the use of a magnetic holder is recommended,
Potential hazard due to small fragments may arise, if ingested accidentally, which is significant in the context of child safety. It should also be noted that small elements from these magnets have the potential to disrupt scanning once in the system,
In cases of tight budgets, neodymium magnet cost may be a barrier,

Highest magnetic holding force – what contributes to it?

The given strength of the magnet represents the optimal strength, calculated under optimal conditions, specifically:

using a steel plate with low carbon content, acting as a magnetic circuit closure
of a thickness of at least 10 mm
with a smooth surface
with no separation
under perpendicular detachment force
in normal thermal conditions

Determinants of practical lifting force of a magnet

In practice, the holding capacity of a magnet is affected by these factors, from crucial to less important:

Air gap between the magnet and the plate, as even a very small distance (e.g. 0.5 mm) can cause a drop in lifting force of up to 50%.
Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.

* Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a small distance {between} the magnet and the plate decreases the load capacity.

Handle Neodymium Magnets with Caution

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

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

Neodymium magnets generate intense 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 destroy devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

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

Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional damage to the magnets.

Keep neodymium magnets away from GPS and smartphones.

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.

Keep neodymium magnets away from 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.

Neodymium magnets should not be in the vicinity children.

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.

The magnet coating is made of nickel, so be cautious if you have an 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.

Neodymium magnets can become demagnetized 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.

Neodymium magnets are fragile and can easily crack as well as shatter.

Neodymium magnets are characterized by considerable fragility. Neodymium magnets are made of metal and coated with a shiny nickel, but they are not as durable as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.

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

Magnets will bounce and clash together within a distance of several to almost 10 cm from each other.

Be careful!

In order to show why neodymium magnets are so dangerous, read the article - How very dangerous are powerful neodymium magnets?.