XT-6 magnetyzery do silników - BENZYNA + POWIETRZE - XT-6 magnetizer

Advantages as well as disadvantages of rare earth magnets.

Besides their high retention, neodymium magnets are valued for these benefits:

• They virtually do not lose power, because even after ten years the performance loss is only ~1% (according to literature),
• Magnets effectively defend themselves against loss of magnetization caused by ambient magnetic noise,
• By applying a smooth layer of nickel, the element acquires an elegant look,
• Neodymium magnets deliver maximum magnetic induction on a contact point, which ensures high operational effectiveness,
• Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
• Possibility of individual forming as well as adapting to concrete conditions,
• Universal use in modern technologies – they find application in HDD drives, motor assemblies, advanced medical instruments, also technologically advanced constructions.
• Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in small systems

Disadvantages of NdFeB magnets:

• At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
• We warn that neodymium magnets can lose 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 recommend using waterproof magnets e.g. in rubber, plastic
• Limited possibility of producing threads in the magnet and complex shapes - recommended is casing - mounting mechanism.
• Possible danger related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. Furthermore, tiny parts of these products are able to complicate diagnosis medical after entering the body.
• With large orders the cost of neodymium magnets is a challenge,

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

Holding force of 0.00 kg is a measurement result performed under the following configuration:

• with the contact of a sheet made of low-carbon steel, ensuring maximum field concentration
• possessing a massiveness of min. 10 mm to avoid saturation
• characterized by lack of roughness
• without the slightest clearance between the magnet and steel
• during detachment in a direction vertical to the plane
• in neutral thermal conditions

Lifting capacity in practice – influencing factors

Please note that the magnet holding will differ influenced by the following factors, starting with the most relevant:

• Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
• Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
• Steel thickness – too thin steel causes magnetic saturation, causing part of the flux to be escaped into the air.
• Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
• Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
• Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

* Lifting capacity was determined using a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under parallel forces the holding force is lower. Moreover, even a small distance {between} the magnet’s surface and the plate reduces the lifting capacity.