MW 6x2 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010092
GTIN: 5906301810919
Diameter Ø
6 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
0.42 g
Magnetization Direction
↑ axial
Load capacity
0.66 kg / 6.47 N
Magnetic Induction
343.37 mT
Coating
[NiCuNi] nickel
0.246 ZŁ with VAT / pcs + price for transport
0.200 ZŁ net + 23% VAT / pcs
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Magnetic properties of material N38
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Strengths and weaknesses of NdFeB magnets.
Besides their durability, neodymium magnets are valued for these benefits:
- They retain magnetic properties for nearly ten years – the loss is just ~1% (according to analyses),
- Neodymium magnets are remarkably resistant to loss of magnetic properties caused by external interference,
- By using a shiny layer of gold, the element presents an elegant look,
- Magnetic induction on the top side of the magnet remains exceptional,
- Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to versatility in constructing and the capacity to modify to client solutions,
- Universal use in modern technologies – they are commonly used in HDD drives, electric drive systems, medical devices, and multitasking production systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Characteristics of disadvantages of neodymium magnets: application proposals
- To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing threads and complicated forms in magnets, we recommend using a housing - magnetic mount.
- Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
- With large orders the cost of neodymium magnets is a challenge,
Detachment force of the magnet in optimal conditions – what affects it?
The lifting capacity listed is a measurement result conducted under specific, ideal conditions:
- using a plate made of low-carbon steel, acting as a circuit closing element
- with a thickness of at least 10 mm
- with a plane perfectly flat
- without any clearance between the magnet and steel
- for force applied at a right angle (pull-off, not shear)
- at temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
It is worth knowing that the working load will differ subject to elements below, in order of importance:
- Gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
- Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of nominal force).
- Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be wasted to the other side.
- Material type – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
- Surface structure – the more even the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
- Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.
* Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the load capacity is reduced by as much as 75%. In addition, even a small distance {between} the magnet’s surface and the plate decreases the lifting capacity.
Precautions when working with NdFeB magnets
Danger to pacemakers
Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Caution required
Handle magnets consciously. Their immense force can surprise even professionals. Plan your moves and respect their force.
Product not for children
Product intended for adults. Small elements can be swallowed, leading to serious injuries. Store away from children and animals.
Compass and GPS
A powerful magnetic field disrupts the operation of magnetometers in phones and navigation systems. Do not bring magnets close to a device to prevent breaking the sensors.
Sensitization to coating
Medical facts indicate that the nickel plating (the usual finish) is a common allergen. If you have an allergy, avoid touching magnets with bare hands and choose encased magnets.
Power loss in heat
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.
Risk of cracking
Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Threat to electronics
Do not bring magnets near a purse, computer, or screen. The magnetism can destroy these devices and erase data from cards.
Fire risk
Machining of NdFeB material poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Bodily injuries
Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.
Warning!
Details about risks in the article: Safety of working with magnets.
