e-mail: bok@dhit.pl

neodymium magnets

We offer red color magnets Nd2Fe14B - our proposal. All magnesy neodymowe on our website are in stock for immediate delivery (see the list). Check out the magnet price list for more details see the magnet price list

Magnet for treasure hunters F300 GOLD

Where to purchase powerful magnet? Magnetic holders in airtight, solid steel enclosure are excellent for use in difficult, demanding weather conditions, including snow and rain read...

magnetic holders

Magnetic holders can be used to improve production, underwater exploration, or finding meteorites made of metal check...

Enjoy shipping of your order on the same day before 2:00 PM on business days.

Dhit sp. z o.o. logo
Product available shipping in 2 days!

MP 10x6x4 / N38 - neodymium magnet

ring magnet

catalog number 030179

GTIN: 5906301811961

5.0

external diameter Ø

10 mm [±0,1 mm]

internal diameter Ø

6 mm [±0,1 mm]

height

4 mm [±0,1 mm]

magnetizing direction

↑ axial

capacity ~

1.37 kg / 13.44 N

magnetic induction ~

108.09 mT / 1,081 Gs

max. temperature

≤ 80 °C

0.90 gross price (including VAT) / pcs +

0.73 ZŁ net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
0.73 ZŁ
0.90 ZŁ
price from 822 pcs
0.69 ZŁ
0.85 ZŁ
price from 3014 pcs
0.64 ZŁ
0.79 ZŁ

Don't know what to choose?

Give us a call tel: +48 22 499 98 98 or get in touch via contact form on our website. You can check the strength and the shape of neodymium magnets in our force calculator magnetic mass calculator

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

Specification: ring magnet 10x6x4 / N38 ↑ axial

Characteristics: ring magnet 10x6x4 / N38 ↑ axial
Properties
Values
catalog number
030179
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
85059029
external diameter Ø
10 mm [±0,1 mm]
internal diameter Ø
6 mm [±0,1 mm]
height
4 mm [±0,1 mm]
magnetizing direction ?
↑ axial
capacity ~ ?
1.37 kg / 13.44 N
magnetic induction ~ ?
108.09 mT / 1,081 Gs
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
weight
3.77 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
Neodymium magnets MP 10x6x4 / N38 in a ring form are commonly used in various industries due to their specific properties. Thanks to a powerful magnetic field of 1.37 kg, which can be described as strength, they are extremely useful in applications that require strong magnetism in a relatively small area. Usage of MP 10x6x4 / N38 magnets include electrical mechanisms, generating systems, audio systems, and several other devices that use magnets for generating motion or storing energy. Despite their significant strength, they have a comparatively low weight of 3.77 grams, which makes them more practical compared to heavier alternatives.
The operation of ring magnets results from their unique atomic structure. Their properties arise from a controlled production process, including sintering and magnetization, which allows for generating a strong and precise magnetic field. This field is ideal for applications in systems requiring motion control. Additionally, ring magnets are resistant to demagnetization.
They are used in various fields of technology and industry, such as electronics, e.g., in the production of speakers or electric motors, automotive, where they are used in brushless electric motors, and medical equipment, e.g., in scanning devices. Their ability to work in high temperatures and precise magnetic field control makes them ideal for technologically advanced applications.
Their uniqueness comes from extraordinary pulling power, ability to work in extreme conditions, and precision in generating the magnetic field. Thanks to their ring shape allows for application in devices requiring concentrated magnetic fields. Additionally, these magnets are more durable than traditional ferrite magnets, which has made them popular in advanced technologies and industrial applications.
Thanks to their resistance to high temperatures, ring magnets operate reliably even in tough conditions. They do not lose their magnetic properties, as long as the temperature does not exceed the Curie point. They are more resistant to loss of magnetism than traditional ferrite magnets. For this reason, they are ideal for applications in the automotive industry, robotics, and devices requiring operation in changing or extreme environmental conditions.

Choose recommended products

Advantages and disadvantages of neodymium magnets NdFeB.

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

  • They do not lose strength over time. After 10 years, their strength decreases by only ~1% (theoretically),
  • They are highly 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 extremely high magnetic induction on the surface of the magnet,
  • By using an appropriate combination of materials, they can achieve high 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 a wide range of shapes and sizes, which amplifies their universality in usage.
  • Significant importance in the industry of new technologies – find application in computer drives, electric drive mechanisms, medical equipment and other modern machines.

Disadvantages of neodymium magnets:

  • They are prone to breaking as they are extremely fragile when subjected to a powerful impact. If the magnets are exposed to impacts, it is suggested using magnets in a metal holder. The steel housing in the form of a holder protects the magnet from impacts and also increases its overall strength,
  • They lose power at high temperatures. Most neodymium magnets experience permanent loss of strength when heated above 80°C (depending on the form and height). However, we also offer special magnets with high temperature resistance, up to 230°C,
  • Due to their susceptibility to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic, or other moisture-resistant materials when using them outdoors,
  • 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 to health from tiny fragments of magnets pose a threat, when accidentally ingested, which is crucial in the aspect of protecting young children. Additionally, miniscule components of these products have the potential to complicate diagnosis after entering the body.

Be Cautious with Neodymium Magnets

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

To use magnets properly, it is best to familiarize yourself with our information beforehand. This will help you avoid significant harm to your body and the magnets themselves.

The magnet coating contains nickel, so be cautious if you have a nickel 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, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.

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.

Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.

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.

Neodymium magnets can become demagnetized at high temperatures.

Under specific conditions, Neodymium magnets may experience demagnetization when subjected to high temperatures.

Keep neodymium magnets as far away as possible from 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.

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

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 magnetic are highly delicate, they easily break and can crumble.

Neodymium magnets are highly delicate, and by joining them in an uncontrolled manner, they will crumble. Magnets made of neodymium 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.

Neodymium magnets will bounce and touch together within a distance of several to almost 10 cm from each other.

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

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98