tel: +48 22 499 98 98

neodymium magnets

We offer yellow color magnets Nd2Fe14B - our proposal. Practically all magnesy neodymowe in our store are in stock for immediate delivery (see the list). Check out the magnet pricing for more details check the magnet price list

Magnet for water searching F200 GOLD

Where to buy powerful magnet? Magnet holders in airtight, solid steel casing are excellent for use in challenging weather conditions, including during rain and snow check...

magnetic holders

Magnetic holders can be applied to improve production, underwater discoveries, or locating meteorites from gold check...

We promise to ship ordered magnets on the day of purchase by 2:00 PM on working days.

Dhit sp. z o.o. logo
Product available shipping tomorrow! Bestseller

MW 12.5x2 / N38 - neodymium magnet

cylindrical magnet

catalog number 010014

GTIN: 5906301810131

5.0

diameter Ø

12.5 mm [±0,1 mm]

height

2 mm [±0,1 mm]

magnetizing direction

↑ axial

capacity ~

1.38 kg / 13.53 N

magnetic induction ~

188.88 mT / 1,889 Gs

max. temperature

≤ 80 °C

0.75 PLN gross price (including VAT) / pcs +

0.61 PLN net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
0.61 PLN
0.75 PLN
price from 768 pcs
0.55 PLN
0.68 PLN
price from 1536 pcs
0.54 PLN
0.66 PLN

Don't know what to buy?

Give us a call tel: +48 22 499 98 98 or write through form on our website. You can check the lifting capacity and the appearance of neodymium magnets in our magnetic calculator force calculator

Orders placed by 2:00 PM will be shipped on the same business day.

Specification: cylindrical magnet 12.5x2 / N38 ↑ axial

Characteristics: cylindrical magnet 12.5x2 / N38 ↑ axial
Properties
Values
catalog number
010014
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
85059029
diameter Ø
12.5 mm [±0,1 mm]
height
2 mm [±0,1 mm]
magnetizing direction ?
↑ axial
capacity ~ ?
1.38 kg / 13.53 N
magnetic induction ~ ?
188.88 mT / 1,889 Gs
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
weight
1.84 g
execution tolerance
± 0.1 mm

Magnetic properties of the material N38

material characteristics N38
Properties
Values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
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 sintered neodymium magnets Nd2Fe14B

Physical properties of sintered neodymium magnets Nd2Fe14B
Properties
Values
units
Vickers hardness
≥550
Hv
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
Cylindrical Neodymium Magnets i.e. MW 12.5x2 / N38 are magnets created of neodymium in a cylindrical shape. They are known for their very strong magnetic properties, which exceed ordinary ferrite magnets. Because of their strength, they are often used in devices that need strong adhesion. The typical temperature resistance of these magnets is 80°C, but for cylindrical magnets, this temperature rises with their height. Additionally, various special coatings, such as nickel, gold, or chrome, are often applied to the surface of neodymium magnets to enhance their resistance to corrosion. The shape of a cylinder is also one of the most popular among neodymium magnets. The magnet designated MW 12.5x2 / N38 with a magnetic force 1.38 kg has a weight of only 1.84 grams.
Cylindrical neodymium magnets, often referred to as Nd2Fe14B, represent the strongest known material for magnet production. Their production process is complicated and includes sintering special neodymium alloys along with other metals such as iron and boron. After appropriate processing, such as heat and mechanical treatment, the magnets are made available for use in many applications, including electric motors, audio-video equipment, and in the automotive and aerospace industries.
Moreover, although neodymium is part of the strongest magnets, they are prone to corrosion in humid environments. For this reason, they are coated with a coating of epoxy to protect them from corrosion. It's worth noting that NdFeB neodymium magnets are about 13% lighter than SmCo magnets and, despite their power, are brittle, which requires care during their handling. Therefore, any mechanical processing should be done before they are magnetized.

In terms of safety, there are several recommendations regarding the use of these magnets. It is advisable to avoid their use in acidic, basic, organic environments or where solvents are present, and also in water or oil. Additionally, they can damage data on magnetic cards and hard drives, although data deletion using a neodymium magnet is not always certain.
Regarding the purchase of cylindrical neodymium magnets, several enterprises offer such products. One of the recommended suppliers is our company Dhit, situated in Ożarów Mazowiecki, the address can be found directly in the contact tab. It is recommended to check the site for the current information and offers, and before visiting, we recommend calling.
Although, cylindrical neodymium magnets are very useful in many applications, they can also pose certain risk. Because of their strong magnetic power, they can pull metallic objects with significant force, which can lead to damaging skin and other materials, especially be careful with fingers. Do not use neodymium magnets near equipment or data storage devices, such as credit cards, as they can damage these devices in terms of magnetic recording. Furthermore, neodymium magnets are prone to corrosion in humid environments, therefore they are coated with a thin e.g., nickel layer. Generally, although they are very useful, one should handle them with due caution.
Neodymium magnets, with the formula Nd2Fe14B, are currently the strong magnets on the market. They are produced through a complicated sintering process, which involves melting specific alloys of neodymium with additional metals and then shaping and heat treating. Their unmatched magnetic strength comes from the specific production technology and chemical structure.
In terms of properties in different environments, neodymium magnets are susceptible to corrosion, especially in humid conditions. Therefore, they are often coated with thin coatings, such as nickel, to preserve them from external factors and prolong their durability. Temperatures exceeding 130°C can cause a loss of their magnetic strength, although there are particular types of neodymium magnets that can withstand temperatures up to 230°C.
As for potential dangers, it is important to avoid using neodymium magnets in acidic environments, basic environments, organic or solvent environments, unless they are adequately insulated. Additionally, their use is not recommended in water, oil, or in an atmosphere containing hydrogen, as they may lose their magnetic strength.

List recommended items

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to immense power, neodymium magnets have the following advantages:

  • They do not lose power over time. After 10 years, their power decreases by only ~1% (theoretically),
  • They are extremely resistant to demagnetization by external magnetic field,
  • By applying a shiny coating of nickel, gold, or silver, the element gains an aesthetic appearance,
  • They exhibit very high magnetic induction on the surface of the magnet,
  • Magnetic neodymium magnets are characterized by very high magnetic induction on the surface of the magnet and can operate (depending on the shape) even at temperatures of 230°C or higher...
  • Due to the option of accurate forming and adaptation to individual needs – neodymium magnets can be produced in a wide range of shapes and sizes, which amplifies their universality in usage.
  • Significant importance in the industry of new technologies – are utilized in computer drives, electric drive mechanisms, medical equipment or other highly developed apparatuses.

Disadvantages of neodymium magnets:

  • They are fragile when subjected to a strong impact. If the magnets are exposed to impacts, we recommend using magnets in a steel housing. The steel housing in the form of a holder protects the magnet from impacts and at the same time increases its overall strength,
  • Magnets lose their power due to exposure to high temperatures. In most cases, when the temperature exceeds 80°C, these magnets experience permanent reduction in strength (although it is worth noting that this is dependent on the form and size of the magnet). To avoid this problem, we offer special magnets marked with the [AH] symbol, which exhibit high temperature resistance. They can operate even at temperatures as high as 230°C or more,
  • Magnets exposed to a humid environment can corrode. Therefore, when using them outdoors, we recommend using waterproof magnets made of rubber, plastic, or other moisture-resistant materials,
  • Limited ability to create threads or complex shapes in the magnet - the use of a housing is recommended - magnetic holder
  • Possible danger associated with microscopic parts of magnets pose a threat, if swallowed, which is crucial in the context of child safety. Additionally, miniscule components of these products are able to complicate diagnosis when they are in the body.

Notes with Neodymium Magnets

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

Neodymium magnets are not toys. Be cautious and make sure no child plays 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.

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.

Under no circumstances should neodymium magnets be placed 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.

The magnet is coated with nickel. Therefore, exercise caution 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 are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.

Magnets will attract each other within a distance of several to about 10 cm from each other. Don't put your fingers in the path of magnet attraction, as a serious injury may occur. Magnets, depending on their size, can even cut off a finger or there can be a serious pressure or even a fracture.

Neodymium magnets are not recommended for 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. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.

Under no circumstances should neodymium magnets be brought close to GPS and smartphones.

Strong fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets are known for their fragility, which can cause them to become damaged.

Neodymium magnets are delicate as well as will break if allowed to collide with each other, even from a distance of a few centimeters. 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.

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.

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

To show why neodymium magnets are so dangerous, see the article - How very dangerous are strong neodymium magnets?.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98