XT-6 magnetyzery do silników - BENZYNA i LPG + olej - XT-6 magnetizer

Pros and cons of NdFeB magnets.

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

• Their power remains stable, and after approximately ten years it drops only by ~1% (theoretically),
• Magnets perfectly protect themselves against loss of magnetization caused by foreign field sources,
• A magnet with a smooth nickel surface has an effective appearance,
• Magnetic induction on the surface of the magnet is extremely intense,
• Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
• Considering the possibility of precise forming and adaptation to custom projects, NdFeB magnets can be modeled in a variety of geometric configurations, which increases their versatility,
• Key role in modern technologies – they are used in computer drives, drive modules, medical equipment, also multitasking production systems.
• Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in compact constructions

Disadvantages of NdFeB magnets:

• To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
• Neodymium magnets decrease their power 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 stability even at temperatures up to 230°C
• Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
• We suggest cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complex shapes.
• Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, small components of these magnets can disrupt the diagnostic process medical when they are in the body.
• Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Best holding force of the magnet in ideal parameters – what affects it?

Holding force of 0 kg is a measurement result conducted under standard conditions:

• on a block made of structural steel, effectively closing the magnetic flux
• with a cross-section minimum 10 mm
• characterized by smoothness
• under conditions of ideal adhesion (surface-to-surface)
• during pulling in a direction perpendicular to the mounting surface
• at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Effective lifting capacity is affected by working environment parameters, mainly (from priority):

• Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
• Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
• Base massiveness – insufficiently thick steel does not close the flux, causing part of the power to be escaped to the other side.
• Steel grade – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
• Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
• Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

* Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the lifting capacity is smaller. In addition, even a small distance {between} the magnet and the plate decreases the load capacity.