e-mail: bok@dhit.pl

neodymium magnets

We offer red color magnets Nd2Fe14B - our store's offer. All "magnets" in our store are in stock for immediate delivery (check the list). See the magnet price list for more details see the magnet price list

Magnets for fishing F200 GOLD

Where to buy strong magnet? Magnetic holders in solid and airtight enclosure are excellent for use in difficult weather, including during rain and snow more...

magnetic holders

Holders with magnets can be used to improve production, exploring underwater areas, or locating meteorites made of metal check...

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UI 39x9x7 [BA] - badge holder

badge holder

Catalog no 150340

GTIN: 5906301813606

5

length [±0,1 mm]

39 mm

Width [±0,1 mm]

9 mm

Height [±0,1 mm]

7 mm

Weight

1 g

0.92 with VAT / pcs + price for transport

0.75 ZŁ net + 23% VAT / pcs

bulk discounts:

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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.

UI 39x9x7 [BA] - badge holder

Specification/characteristics UI 39x9x7 [BA] - badge holder
properties
values
Cat. no.
150340
GTIN
5906301813606
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
length
39 mm [±0,1 mm]
Width
9 mm [±0,1 mm]
Height
7 mm [±0,1 mm]
Weight
1 g [±0,1 mm]
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material

properties
values
units

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

The most recommended mountings for ID badges include options such as this UI 39x9x7 [BA]. They ensure security and an aesthetic appearance. Magnetic holders are valued as the best because they are gentle on clothing, are simple to mount, and provide stable badge attachment. A model equipped with powerful neodymium magnets and high-quality adhesive tapes, such as 3M tape, is especially recommended.
No!, magnetic holders are contraindicated for individuals with heart implants, as the strong magnetic field may disrupt their functioning. In this situation, it is advised to use alternative fastening methods, and we offer two such types in our range.

Advantages and disadvantages of neodymium magnets NdFeB.

Apart from immense strength, neodymium magnets have the following advantages:

  • They do not lose power over time - after 10 years, their strength decreases by only ~1% (theoretically),
  • They protect against demagnetization caused by external magnetic field very well,
  • By applying a shiny coating of nickel, gold, or silver, the element gains an aesthetic appearance,
  • They have very high magnetic induction on the surface of the magnet,
  • Thanks to their high temperature resistance, they can operate (depending on the shape) even at temperatures up to 230°C and above...
  • Due to the option of accurate forming or adaptation to individual needs – neodymium magnets can be produced in many variants of shapes or sizes, which amplifies their universality in usage.
  • Key role in modern technologies – find application in HDD drives, electric drive mechanisms, medical apparatus or other advanced devices.

Disadvantages of neodymium magnets:

  • They are prone to breaking as they are 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,
  • Magnets lose their strength due to exposure to high temperatures. In most cases, when the temperature exceeds 80°C, these magnets experience permanent loss in strength (although it is worth noting that this is dependent on the shape 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,
  • They rust in a humid environment. For outdoor use, we recommend using waterproof magnets, such as those made of rubber or plastic,
  • 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
  • Health risk to health from tiny fragments of magnets are risky, if swallowed, which is particularly important in the aspect of protecting young children. It's also worth noting that small elements of these devices can complicate diagnosis in case of swallowing.

Handle Neodymium Magnets with Caution

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

Read the information on our website on how to properly utilize neodymium magnets and avoid significant harm to your body and unintentional damage to the magnets.

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

Strong 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.

 Keep neodymium magnets far from youngest children.

Neodymium magnets are not toys. Do not allow children to play with them. Small magnets can pose a serious choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing severe injuries, and even death.

Neodymium magnets are particularly fragile, which leads to shattering.

Neodymium magnets are characterized by significant fragility. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of collision between the magnets, sharp metal fragments can be dispersed in different directions.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

Magnets will crack or crumble with careless connecting to each other. You can't approach them to each other. At a distance less than 10 cm you should have them extremely firmly.

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

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

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.

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.

Do not bring neodymium magnets close to GPS and smartphones.

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 can become demagnetized at high temperatures.

Whilst Neodymium magnets can demagnetize at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

Exercise caution!

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

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98