UI 39x9x7 [BA] - badge holder
badge holder
Catalog no 150340
GTIN: 5906301813606
length [±0,1 mm]
39 mm
Width [±0,1 mm]
9 mm
Height [±0,1 mm]
7 mm
Weight
1 g
0.92 ZŁ with VAT / pcs + price for transport
0.75 ZŁ net + 23% VAT / pcs
bulk discounts:
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UI 39x9x7 [BA] - badge holder
Magnetic properties of material
Physical properties of NdFeB
Shopping tips
Advantages as well as disadvantages of neodymium magnets NdFeB.
In addition to their remarkable field intensity, neodymium magnets offer the following advantages:
- They virtually do not lose power, because even after ten years, the performance loss is only ~1% (according to literature),
- They protect against demagnetization induced by surrounding electromagnetic environments very well,
- By applying a reflective layer of gold, the element gains a sleek look,
- The outer field strength of the magnet shows elevated magnetic properties,
- They are suitable for high-temperature applications, operating effectively at 230°C+ due to advanced heat resistance and form-specific properties,
- The ability for accurate shaping and adjustment to specific needs – neodymium magnets can be manufactured in many forms and dimensions, which enhances their versatility in applications,
- Key role in cutting-edge sectors – they serve a purpose in hard drives, rotating machines, clinical machines and other advanced devices,
- Thanks to their efficiency per volume, small magnets offer high magnetic performance, while occupying minimal space,
Disadvantages of rare earth magnets:
- They can break when subjected to a powerful impact. If the magnets are exposed to shocks, we recommend in a metal holder. The steel housing, in the form of a holder, protects the magnet from cracks , and at the same time enhances its overall resistance,
- 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 profile). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
- They rust in a wet environment. If exposed to rain, we recommend using waterproof magnets, such as those made of rubber,
- The use of a protective casing or external holder is recommended, since machining multi-axis shapes in neodymium magnets is risky,
- Health risk related to magnet particles may arise, if ingested accidentally, which is important in the family environments. Moreover, miniature parts from these magnets can disrupt scanning when ingested,
- Higher purchase price is one of the drawbacks compared to ceramic magnets, especially in budget-sensitive applications
Precautions
Dust and powder from neodymium magnets are highly 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.
Magnets made of neodymium are noted for their fragility, which can cause them to shatter.
Magnets made of neodymium are highly delicate, and by joining them in an uncontrolled manner, they will crumble. 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 connection between the magnets, sharp metal fragments can be dispersed in different directions.
Neodymium magnets can demagnetize at high temperatures.
Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.
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.
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. 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 over 10 times stronger than ferrite magnets (the ones in speakers), and their strength can shock you.
Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.
It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.
Neodymium magnets jump and clash mutually within a radius of several to almost 10 cm from each other.
Keep neodymium magnets away from 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. 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.
Keep neodymium magnets away from TV, wallet, and computer HDD.
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, etc. devices. They can also destroy devices like video players, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.
Under no circumstances should neodymium magnets be brought close to GPS and smartphones.
Neodymium magnets are a source of strong magnetic fields that cause interference with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.
Be careful!
To raise awareness of why neodymium magnets are so dangerous, read the article titled How very dangerous are very strong neodymium magnets?.