XT-5 magnetyzery do silników - DIESEL + olej - XT-5 magnetizer

Strengths and weaknesses of rare earth magnets.

Apart from their superior power, neodymium magnets have these key benefits:

• They do not lose magnetism, even after approximately 10 years – the reduction in power is only ~1% (according to tests),
• They possess excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
• In other words, due to the smooth layer of nickel, the element is aesthetically pleasing,
• Magnets possess impressive magnetic induction on the working surface,
• Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
• Thanks to modularity in constructing and the ability to adapt to unusual requirements,
• Key role in advanced technology sectors – they find application in magnetic memories, electric motors, precision medical tools, and multitasking production systems.
• Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Problematic aspects of neodymium magnets and proposals for their use:

• Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
• Neodymium magnets decrease their force 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 oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
• We recommend casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complex forms.
• Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that small components of these products can complicate diagnosis medical in case of swallowing.
• High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Magnetic strength at its maximum – what contributes to it?

The lifting capacity listed is a measurement result performed under the following configuration:

• using a sheet made of mild steel, functioning as a ideal flux conductor
• with a thickness minimum 10 mm
• characterized by smoothness
• under conditions of ideal adhesion (metal-to-metal)
• under vertical force direction (90-degree angle)
• at conditions approx. 20°C

Lifting capacity in real conditions – factors

Bear in mind that the application force will differ depending on the following factors, starting with the most relevant:

• Space between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
• Load vector – maximum parameter is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
• Steel thickness – too thin plate causes magnetic saturation, causing part of the power to be wasted to the other side.
• Plate material – low-carbon steel attracts best. Alloy admixtures reduce magnetic properties and holding force.
• Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
• Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

* Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap {between} the magnet’s surface and the plate reduces the holding force.