MW 6x6 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010094
GTIN: 5906301810933
Diameter Ø [±0,1 mm]
6 mm
Height [±0,1 mm]
6 mm
Weight
1.27 g
Magnetization Direction
↑ axial
Load capacity
1.99 kg / 19.52 N
Magnetic Induction
553.38 mT
Coating
[NiCuNi] nickel
0.677 ZŁ with VAT / pcs + price for transport
0.550 ZŁ net + 23% VAT / pcs
bulk discounts:
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Force along with form of neodymium magnets can be tested on our
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Magnetic properties of material N38
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Strengths as well as weaknesses of rare earth magnets.
Apart from their notable holding force, neodymium magnets have these key benefits:
- They have stable power, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
- They are resistant to demagnetization induced by presence of other magnetic fields,
- By applying a smooth layer of gold, the element presents an proper look,
- Magnetic induction on the working layer of the magnet is very high,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of custom machining and adjusting to concrete applications,
- Fundamental importance in future technologies – they are utilized in data components, brushless drives, advanced medical instruments, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in small systems
Cons of neodymium magnets: weaknesses and usage proposals
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in realizing nuts and complicated forms in magnets, we recommend using a housing - magnetic mount.
- Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these devices are able to complicate diagnosis medical in case of swallowing.
- With large orders the cost of neodymium magnets is economically unviable,
Magnetic strength at its maximum – what affects it?
The lifting capacity listed is a theoretical maximum value executed under the following configuration:
- with the application of a sheet made of low-carbon steel, ensuring full magnetic saturation
- whose thickness is min. 10 mm
- with an ground touching surface
- with total lack of distance (without impurities)
- during pulling in a direction perpendicular to the plane
- at temperature approx. 20 degrees Celsius
Lifting capacity in real conditions – factors
Effective lifting capacity is influenced by working environment parameters, mainly (from most important):
- Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – too thin sheet causes magnetic saturation, causing part of the power to be wasted to the other side.
- Material composition – not every steel attracts identically. Alloy additives worsen the attraction effect.
- Surface structure – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).
* Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, however under shearing force the holding force is lower. In addition, even a minimal clearance {between} the magnet and the plate lowers the load capacity.
Warnings
Dust is flammable
Powder created during machining of magnets is flammable. Do not drill into magnets unless you are an expert.
GPS Danger
Navigation devices and mobile phones are highly sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Shattering risk
Neodymium magnets are sintered ceramics, meaning they are very brittle. Impact of two magnets will cause them breaking into shards.
Allergy Warning
Certain individuals have a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching might lead to a rash. We suggest wear protective gloves.
Serious injuries
Pinching hazard: The attraction force is so immense that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.
Do not overheat magnets
Avoid heat. NdFeB magnets are sensitive to heat. If you need operation above 80°C, ask us about HT versions (H, SH, UH).
Electronic devices
Very strong magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Stay away of min. 10 cm.
ICD Warning
Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
This is not a toy
Strictly keep magnets away from children. Ingestion danger is high, and the consequences of magnets connecting inside the body are fatal.
Powerful field
Handle magnets consciously. Their huge power can surprise even professionals. Be vigilant and do not underestimate their force.
Security!
Learn more about risks in the article: Safety of working with magnets.
