tel: +48 888 99 98 98

neodymium magnets

We offer red color magnetic Nd2Fe14B - our store's offer. All magnesy neodymowe on our website are in stock for immediate purchase (see the list). Check out the magnet price list for more details check the magnet price list

Magnets for fishing F200 GOLD

Where to purchase powerful magnet? Holders with magnets in airtight and durable steel enclosure are excellent for use in difficult climate conditions, including during snow and rain see...

magnetic holders

Magnetic holders can be used to facilitate production, underwater exploration, or searching for space rocks made of ore see more...

Enjoy delivery of your order if the order is placed by 2:00 PM on weekdays.

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

UMC 20x6/3x7 / N38 - cylindrical magnetic holder

cylindrical magnetic holder

Catalog no 320407

GTIN: 5906301814634

5

Diameter [±0,1 mm]

20 mm

internal diameter Ø [±0,1 mm]

6/3 mm

Height [±0,1 mm]

7 mm

Weight

12 g

Load capacity

6 kg / 58.84 N

Coating

[NiCuNi] nickel

6.99 with VAT / pcs + price for transport

5.68 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
5.68 ZŁ
6.99 ZŁ
price from 62 pcs
5.34 ZŁ
6.57 ZŁ
price from 141 pcs
5.00 ZŁ
6.15 ZŁ

Want to negotiate the price?

Call us +48 22 499 98 98 or write via form on the contact page. Test the magnet's power with our power calculator.

Orders placed by 14:00 are shipped the same day.

UMC 20x6/3x7 / N38 - cylindrical magnetic holder

Specification/characteristics UMC 20x6/3x7 / N38 - cylindrical magnetic holder
properties
values
Cat. no.
320407
GTIN
5906301814634
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter
20 mm [±0,1 mm]
internal diameter Ø
6/3 mm [±0,1 mm]
Height
7 mm [±0,1 mm]
Weight
12 g [±0,1 mm]
Load capacity ~ ?
6 kg / 58.84 N
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
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

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

  • They do not lose their even during around 10 years – the loss of strength is only ~1% (according to tests),
  • They are highly resistant to demagnetization caused by external magnetic fields,
  • The use of a decorative nickel surface provides a smooth finish,
  • They possess intense magnetic force measurable at the magnet’s surface,
  • Thanks to their high temperature resistance, they can operate (depending on the form) even at temperatures up to 230°C or more,
  • With the option for tailored forming and precise design, these magnets can be produced in various shapes and sizes, greatly improving application potential,
  • Key role in advanced technical fields – they serve a purpose in HDDs, electric motors, clinical machines along with sophisticated instruments,
  • Compactness – despite their small size, they provide high effectiveness, making them ideal for precision applications

Disadvantages of magnetic elements:

  • They are prone to breaking when subjected to a heavy impact. If the magnets are exposed to mechanical hits, we recommend in a protective case. The steel housing, in the form of a holder, protects the magnet from cracks and enhances its overall robustness,
  • 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 rubber for outdoor use,
  • Using a cover – such as a magnetic holder – is advised due to the challenges in manufacturing fine shapes directly in the magnet,
  • Safety concern from tiny pieces may arise, especially if swallowed, which is important in the protection of children. Additionally, minuscule fragments from these products have the potential to hinder health screening after being swallowed,
  • In cases of mass production, neodymium magnet cost is a challenge,

Exercise Caution with Neodymium Magnets

The magnet coating is made of nickel, so be cautious 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 the strongest magnets ever created, 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.

Avoid bringing neodymium magnets close to a phone or GPS.

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 should not be in the vicinity children.

Not all neodymium magnets are toys, so do not let children play with them. Small magnets pose a serious choking hazard or can attract to each other in the intestines. 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 become demagnetized at high temperatures.

Under specific conditions, Neodymium magnets can lose their magnetism when subjected to high temperatures.

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

Neodymium magnets produce intense magnetic fields that can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also destroy videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

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

Magnets will jump and also contact together within a distance of several to around 10 cm from each other.

Neodymium magnetic are particularly fragile, which leads to their breakage.

Neodymium magnetic are highly delicate, and by joining them in an uncontrolled manner, they will crack. Neodymium magnetic 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.

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

Neodymium magnets are not recommended for 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.

Warning!

Please read the article - What danger lies in neodymium magnets? You will learn how to handle them properly.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98