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

Pros as well as cons of neodymium magnets.

Besides their tremendous strength, neodymium magnets offer the following advantages:

• They do not lose magnetism, even during approximately 10 years – the drop in lifting capacity is only ~1% (theoretically),
• They retain their magnetic properties even under strong external field,
• A magnet with a metallic nickel surface has an effective appearance,
• The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
• 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 exact forming and optimizing to atypical conditions,
• Significant place in advanced technology sectors – they find application in hard drives, motor assemblies, advanced medical instruments, as well as complex engineering applications.
• Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages of NdFeB magnets:

• To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
• Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
• Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
• Limited ability of making nuts in the magnet and complicated shapes - recommended is cover - magnetic holder.
• Health risk resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Furthermore, tiny parts of these magnets are able to be problematic in diagnostics medical when they are in the body.
• High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Maximum holding power of the magnet – what affects it?

Holding force of 0 kg is a result of laboratory testing conducted under specific, ideal conditions:

• with the use of a sheet made of low-carbon steel, guaranteeing maximum field concentration
• possessing a massiveness of at least 10 mm to avoid saturation
• with a plane perfectly flat
• under conditions of ideal adhesion (surface-to-surface)
• during detachment in a direction perpendicular to the plane
• at temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

In real-world applications, the actual lifting capacity depends on several key aspects, listed from crucial:

• Air gap (betwixt the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
• Direction of force – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
• Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
• Material type – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
• Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
• Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

* Lifting capacity was assessed by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance {between} the magnet’s surface and the plate lowers the lifting capacity.