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neodymium magnets

We provide yellow color magnets Nd2Fe14B - our proposal. All "neodymium magnets" in our store are in stock for immediate purchase (see the list). See the magnet price list for more details see the magnet price list

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Where to purchase very strong neodymium magnet? Holders with magnets in solid and airtight steel enclosure are excellent for use in challenging weather conditions, including during rain and snow check...

magnets with holders

Magnetic holders can be applied to enhance production processes, exploring underwater areas, or searching for space rocks from gold more information...

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UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread

magnetic holder rubber internal thread

Catalog no 160307

GTIN: 5906301813651

5

Diameter Ø [±0,1 mm]

43 mm

Height [±0,1 mm]

6 mm

Weight

29 g

Load capacity

8.7 kg / 85.32 N

10.46 with VAT / pcs + price for transport

8.50 ZŁ net + 23% VAT / pcs

bulk discounts:

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Weight as well as structure of magnets can be calculated using our magnetic calculator.

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UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread

Specification/characteristics UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
properties
values
Cat. no.
160307
GTIN
5906301813651
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
43 mm [±0,1 mm]
Height
6 mm [±0,1 mm]
Weight
29 g [±0,1 mm]
Load capacity ~ ?
8.7 kg / 85.32 N
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
T
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
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

Shopping tips

They function thanks to a powerful magnetic force that secures massive items, up to several kilograms – depending on the size of the magnet used. They are employed in the automotive industry, building industry, marketing, or logistics, where they serve well for both fixed and temporary attachment of components.
No! Magnetic holders are not recommended for people with implanted cardiac devices, as the strong magnetic field may interfere with their function. In this situation, we suggest using pin-type holders — we offer two such types in our range.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their immense magnetic power, neodymium magnets offer the following advantages:

  • Their magnetic field is maintained, and after approximately 10 years, it drops only by ~1% (theoretically),
  • They are very resistant to demagnetization caused by external magnetic fields,
  • By applying a reflective layer of nickel, the element gains a sleek look,
  • Magnetic induction on the surface of these magnets is impressively powerful,
  • Neodymium magnets are known for exceptionally strong magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the magnetic form),
  • With the option for fine forming and precise design, these magnets can be produced in multiple shapes and sizes, greatly improving design adaptation,
  • Wide application in modern technologies – they are utilized in data storage devices, electric drives, clinical machines and high-tech tools,
  • Relatively small size with high magnetic force – neodymium magnets offer intense magnetic field in small dimensions, which makes them useful in small systems

Disadvantages of NdFeB magnets:

  • They are fragile when subjected to a heavy impact. If the magnets are exposed to shocks, we recommend in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from cracks and additionally strengthens its overall strength,
  • Magnets lose pulling force when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible field weakening (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,
  • They rust in a humid environment. If exposed to rain, we recommend using encapsulated magnets, such as those made of polymer,
  • Using a cover – such as a magnetic holder – is advised due to the difficulty in manufacturing threads directly in the magnet,
  • Possible threat due to small fragments may arise, if ingested accidentally, which is crucial in the family environments. Additionally, tiny components from these devices have the potential to complicate medical imaging if inside the body,
  • In cases of tight budgets, neodymium magnet cost is a challenge,

Exercise Caution with Neodymium Magnets

If you have a nickel allergy, avoid contact with neodymium magnets.

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.

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.

Avoid bringing neodymium magnets close to a phone or GPS.

Intense magnetic 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 highly delicate, they easily fall apart as well as can crumble.

Neodymium magnets are characterized by significant 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, sharp metal fragments can be dispersed in different directions.

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

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

Strong magnetic fields emitted by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Keep neodymium magnets away from people with pacemakers.

Neodymium magnets produce strong magnetic fields that can interfere with the operation of a heart pacemaker. However, if the magnetic field does not affect the device, it can damage its components or deactivate the device when it is in a magnetic field.

Neodymium magnets can become demagnetized at high temperatures.

Despite the general resilience of magnets, their ability to retain their magnetic strength can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

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

Neodymium magnets are not toys. You cannot allow them to become toys for children. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

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

Magnets will attract each other within a distance of several to about 10 cm from each other. Remember not to insert fingers between magnets or in their path when they attract. Depending on how large the neodymium magnets are, they can lead to a cut or a fracture.

Warning!

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

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tel: +48 888 99 98 98