XT-6 magnetyzer do silników - BENZYNA + olej - XT-6 magnetizer

Pros and cons of rare earth magnets.

Apart from their strong magnetism, neodymium magnets have these key benefits:

• They do not lose magnetism, even over approximately 10 years – the decrease in lifting capacity is only ~1% (theoretically),
• Magnets perfectly protect themselves against demagnetization caused by ambient magnetic noise,
• By applying a smooth coating of nickel, the element presents an proper look,
• Magnets have maximum magnetic induction on the outer layer,
• Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
• Thanks to the possibility of flexible molding and adaptation to specialized requirements, magnetic components can be modeled in a variety of forms and dimensions, which amplifies use scope,
• Universal use in innovative solutions – they find application in hard drives, brushless drives, precision medical tools, also other advanced devices.
• Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in small systems

Disadvantages of NdFeB magnets:

• At very strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
• Neodymium magnets lose 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 durability even at temperatures up to 230°C
• They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
• We suggest a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
• Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
• Due to expensive raw materials, their price exceeds standard values,

Maximum lifting capacity of the magnet – what it depends on?

Breakaway force was determined for the most favorable conditions, assuming:

• with the use of a yoke made of low-carbon steel, ensuring full magnetic saturation
• with a cross-section no less than 10 mm
• with a surface cleaned and smooth
• without the slightest insulating layer between the magnet and steel
• under perpendicular force vector (90-degree angle)
• in neutral thermal conditions

Practical aspects of lifting capacity – factors

During everyday use, the actual lifting capacity depends on a number of factors, presented from the most important:

• Gap (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to varnish, corrosion or dirt).
• Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
• Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
• Material composition – not every steel attracts identically. High carbon content weaken the attraction effect.
• Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
• Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

* Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance {between} the magnet and the plate decreases the lifting capacity.