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

Pros as well as cons of rare earth magnets.

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:

• They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
• They are resistant to demagnetization induced by presence of other magnetic fields,
• In other words, due to the smooth surface of nickel, the element is aesthetically pleasing,
• Magnetic induction on the working layer of the magnet remains strong,
• Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
• Thanks to the ability of precise forming and customization to specialized projects, NdFeB magnets can be produced in a broad palette of shapes and sizes, which makes them more universal,
• Significant place in innovative solutions – they find application in hard drives, brushless drives, precision medical tools, and modern systems.
• Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages of NdFeB magnets:

• At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
• We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
• They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
• Limited ability of creating nuts in the magnet and complicated forms - recommended is cover - magnet mounting.
• Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that small components of these magnets are able to complicate diagnosis medical in case of swallowing.
• With mass production the cost of neodymium magnets can be a barrier,

Detachment force of the magnet in optimal conditions – what contributes to it?

The force parameter is a theoretical maximum value conducted under the following configuration:

• with the application of a yoke made of special test steel, ensuring full magnetic saturation
• possessing a massiveness of at least 10 mm to ensure full flux closure
• with a surface cleaned and smooth
• under conditions of ideal adhesion (surface-to-surface)
• during detachment in a direction perpendicular to the mounting surface
• at room temperature

Practical aspects of lifting capacity – factors

Real force impacted by specific conditions, including (from most important):

• Distance – existence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
• Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
• Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
• Steel grade – ideal substrate is high-permeability steel. Cast iron may attract less.
• Surface finish – full contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
• Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

* Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance {between} the magnet and the plate lowers the load capacity.