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

Pros as well as cons of NdFeB magnets.

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

• They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
• Magnets effectively resist against loss of magnetization caused by foreign field sources,
• Thanks to the reflective finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an elegant appearance,
• Magnets have exceptionally strong magnetic induction on the active area,
• Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
• Possibility of detailed forming and adjusting to individual conditions,
• Huge importance in future technologies – they find application in hard drives, electric drive systems, medical equipment, and multitasking production systems.
• Compactness – despite small sizes they generate large force, making them ideal for precision applications

Problematic aspects of neodymium magnets and ways of using them

• To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
• When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
• They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
• Due to limitations in realizing nuts and complex shapes in magnets, we recommend using casing - magnetic holder.
• Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets can disrupt the diagnostic process medical when they are in the body.
• Due to expensive raw materials, their price is higher than average,

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

The force parameter is a measurement result executed under standard conditions:

• on a plate made of structural steel, optimally conducting the magnetic field
• with a cross-section of at least 10 mm
• with an ideally smooth touching surface
• without the slightest air gap between the magnet and steel
• for force applied at a right angle (pull-off, not shear)
• in temp. approx. 20°C

Lifting capacity in real conditions – factors

Real force is affected by working environment parameters, such as (from most important):

• Distance – the presence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
• Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
• Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
• Metal type – different alloys reacts the same. Alloy additives worsen the attraction effect.
• Surface structure – the more even the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
• Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

* Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap {between} the magnet’s surface and the plate lowers the holding force.