NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube

Strengths as well as weaknesses of NdFeB magnets.

Besides their durability, neodymium magnets are valued for these benefits:

• They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
• They maintain their magnetic properties even under close interference source,
• By covering with a smooth layer of gold, the element has an aesthetic look,
• Magnets have huge magnetic induction on the surface,
• Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
• Possibility of precise creating as well as optimizing to specific needs,
• Wide application in innovative solutions – they are commonly used in data components, drive modules, precision medical tools, and industrial machines.
• Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Problematic aspects of neodymium magnets: tips and applications.

• They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
• NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
• When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
• Due to limitations in realizing nuts and complex shapes in magnets, we recommend using cover - magnetic mechanism.
• Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
• Due to complex production process, their price is higher than average,

Highest magnetic holding force – what affects it?

The load parameter shown concerns the limit force, measured under ideal test conditions, meaning:

• on a block made of structural steel, optimally conducting the magnetic field
• whose transverse dimension is min. 10 mm
• with an ground touching surface
• without the slightest insulating layer between the magnet and steel
• under perpendicular force direction (90-degree angle)
• at conditions approx. 20°C

Lifting capacity in real conditions – factors

Bear in mind that the magnet holding will differ depending on elements below, in order of importance:

• Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
• Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
• Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
• Material composition – not every steel attracts identically. Alloy additives worsen the attraction effect.
• Plate texture – ground elements guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
• Temperature influence – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

* Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance {between} the magnet’s surface and the plate lowers the lifting capacity.