UMC 42x7/4x9 / N38
cylindrical magnetic holder
catalog number 320411
GTIN: 5906301814672
external diameter Ø
42
mm [±0,1 mm]
internal diameter Ø
7/4
mm [±0,1 mm]
height
9
mm [±0,1 mm]
capacity ~
32.00 kg / 313.81 N
max. temperature
≤ 80
°C
catalog number 320411
GTIN: 5906301814672
external diameter Ø
42 mm [±0,1 mm]
internal diameter Ø
7/4 mm [±0,1 mm]
height
9 mm [±0,1 mm]
capacity ~
32.00 kg / 313.81 N
max. temperature
≤ 80 °C
29.99 ZŁ gross price (including VAT) / pcs +
24.38 ZŁ net price + 23% VAT / pcs
bulk discounts:
need more quantity?Want to talk about magnets?
Give us a call tel: +48 888 99 98 98 or get in touch via contact form on our website. You can check the mass and the shape of neodymium magnets in our power calculator force calculator
Orders placed by 2:00 PM will be shipped on the same business day.
Specification: cylindrical magnetic holder 42x7/4x9 / N38
Magnetic properties of the material N38
Physical properties of sintered neodymium magnets Nd2Fe14B
Compilation of suggested goods
![magnetic holder rubber internal thread 29x8 [M4] GW / N38](https://cdn3.dhit.pl/graphics/products/umg-29x8-m4-gw-duf.jpg "magnetic holder rubber internal thread 29x8 [M4] GW / N38")
Advantages as well as disadvantages of neodymium magnets NdFeB.
In addition to immense strength, neodymium magnets have the following advantages:
- They do not lose power over time - after about 10 years, their power decreases by only ~1% (theoretically),
- They are highly resistant to demagnetization by external magnetic sources,
- Thanks to the shiny finish and nickel, gold, or silver coating, they have an aesthetic appearance,
- They exhibit very high magnetic induction on the surface of the magnet,
- Magnetic neodymium magnets are characterized by very high magnetic induction on the surface of the magnet and can operate (depending on the form) even at temperatures of 230°C or higher...
- Due to the option of accurate forming and adaptation to individual needs – neodymium magnets can be produced in many variants of shapes and sizes, which expands the range of their possible uses.
- Key role in the industry of new technologies – are utilized in computer drives, electric motors, medical devices or various technologically 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, we recommend using magnets in a steel housing. The steel housing in the form of a holder protects the magnet from impacts and simultaneously increases its overall strength,
- High temperatures can reduce the strength of neodymium magnets. Typically, after heating above 80°C, most of them experience a permanent loss in strength (although it is dependent on the form and size). To prevent this, we offer special magnets marked with the symbol [AH], which are highly resistant to high temperatures. They can operate even at temperatures up to 230°C, making them an ideal solution for applications requiring high-temperature operation,
- 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 - a magnetic holder is recommended due to the limited production capabilities of creating threads or complex shapes in the magnet
- Health risk to health from tiny fragments of magnets pose a threat, if swallowed, which is crucial in the context of child safety. Additionally, tiny parts of these devices have the potential to be problematic in medical diagnosis when they are in the body.
Exercise Caution with Neodymium Magnets
The magnet coating is made of nickel, so be cautious if you have an allergy.
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.
Neodymium magnetic are known for their fragility, which can cause them to crumble.
Neodymium magnets are characterized by considerable 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 connection between the magnets, small metal fragments can be dispersed in different directions.
Keep neodymium magnets as far away as possible from 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 are among the most powerful magnets on Earth. The astonishing force they generate between each other can shock 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 TV, wallet, and computer HDD.
Neodymium magnets produce strong magnetic fields that can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. 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 should not be near 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. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.
Neodymium magnets can demagnetize at high temperatures.
Under specific conditions, Neodymium magnets may experience demagnetization when subjected to high temperatures.
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 will jump and also touch together within a distance of several to almost 10 cm from each other.
Maintain neodymium magnets far from youngest children.
Remember that neodymium magnets are not toys. Be cautious and make sure no child plays 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.
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.
In order to show why neodymium magnets are so dangerous, read the article - How very dangerous are strong neodymium magnets?.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 4 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 4 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 4 dni
23.00 ZŁ
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