UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
magnetic holder rubber internal thread
Catalog no 160304
GTIN: 5906301813620
Diameter Ø [±0,1 mm]
22 mm
Height [±0,1 mm]
6 mm
Weight
12 g
Load capacity
5.1 kg / 50.01 N
7.38 ZŁ with VAT / pcs + price for transport
6.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
Magnetic properties of material N38
Physical properties of NdFeB
Shopping tips
Advantages and disadvantages of neodymium magnets NdFeB.
Besides their magnetic performance, neodymium magnets are valued for these benefits:
- They do not lose their magnetism, even after approximately 10 years – the reduction of strength is only ~1% (theoretically),
- They remain magnetized despite exposure to strong external fields,
- The use of a decorative gold surface provides a eye-catching finish,
- Magnetic induction on the surface of these magnets is notably high,
- Thanks to their exceptional temperature resistance, they can operate (depending on the form) even at temperatures up to 230°C or more,
- With the option for fine forming and precise design, these magnets can be produced in numerous shapes and sizes, greatly improving design adaptation,
- Important function in advanced technical fields – they are utilized in computer drives, electromechanical systems, healthcare devices or even other advanced devices,
- Compactness – despite their small size, they provide high effectiveness, making them ideal for precision applications
Disadvantages of NdFeB magnets:
- They can break when subjected to a heavy impact. If the magnets are exposed to shocks, it is suggested to place them in a metal holder. The steel housing, in the form of a holder, protects the magnet from fracture , and at the same time strengthens its overall durability,
- High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent loss in performance (depending on form). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
- They rust in a moist environment. If exposed to rain, we recommend using waterproof magnets, such as those made of rubber,
- Limited ability to create threads in the magnet – the use of a magnetic holder is recommended,
- Potential hazard linked to microscopic shards may arise, when consumed by mistake, which is significant in the family environments. It should also be noted that tiny components from these products might disrupt scanning if inside the body,
- Due to a complex production process, their cost is considerably higher,
Best holding force of the magnet in ideal parameters – what it depends on?
The given strength of the magnet corresponds to the optimal strength, determined in ideal conditions, that is:
- with the use of low-carbon steel plate serving as a magnetic yoke
- of a thickness of at least 10 mm
- with a refined outer layer
- with no separation
- in a perpendicular direction of force
- at room temperature
What influences lifting capacity in practice
The lifting capacity of a magnet depends on in practice the following factors, ordered from most important to least significant:
- Air gap between the magnet and the plate, since even a very small distance (e.g. 0.5 mm) causes a drop in lifting force of up to 50%.
- Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
- Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
- Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
- Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
- Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.
* Lifting capacity was assessed by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance {between} the magnet’s surface and the plate decreases the lifting capacity.
Caution with Neodymium Magnets
Neodymium magnets should not be near 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.
The magnet is coated with nickel - be careful 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.
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. 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 significant injuries, and even death.
Neodymium magnets can demagnetize at high temperatures.
Although magnets are generally resilient, 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.
Never bring neodymium magnets close to a phone and GPS.
Neodymium magnets generate strong magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.
Neodymium magnets are particularly delicate, resulting in shattering.
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, small metal fragments can be dispersed in different directions.
Dust and powder from neodymium magnets are highly flammable.
Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. If the magnet is crushed into fine powder or dust, it becomes highly flammable.
Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.
Magnets will jump and also contact together within a distance of several to around 10 cm from each other.
Comparing neodymium magnets to ferrite magnets (found in speakers), they are 10 times stronger, and their power can shock you.
To handle 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.
Keep neodymium magnets away from TV, wallet, and computer HDD.
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, etc. devices. They can also destroy videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.
Warning!
In order to illustrate why neodymium magnets are so dangerous, read the article - How dangerous are powerful neodymium magnets?.
