XT-6 magnetyzery do silników - BENZYNA i LPG + olej - XT-6 magnetizer

Pros as well as cons of NdFeB magnets.

Besides their immense pulling force, neodymium magnets offer the following advantages:

• They retain magnetic properties for nearly ten years – the loss is just ~1% (based on simulations),
• They have excellent resistance to magnetism drop when exposed to opposing magnetic fields,
• The use of an refined coating of noble metals (nickel, gold, silver) causes the element to present itself better,
• They show high magnetic induction at the operating surface, which improves attraction properties,
• 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 freedom in constructing and the capacity to customize to specific needs,
• Huge importance in modern industrial fields – they are utilized in HDD drives, brushless drives, precision medical tools, and other advanced devices.
• Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Problematic aspects of neodymium magnets: application proposals

• Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their 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 recommend using waterproof magnets e.g. in rubber, plastic
• Due to limitations in realizing nuts and complicated forms in magnets, we recommend using casing - magnetic mount.
• Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products can disrupt the diagnostic process medical after entering the body.
• With budget limitations the cost of neodymium magnets is a challenge,

Magnetic strength at its maximum – what it depends on?

The lifting capacity listed is a result of laboratory testing performed under standard conditions:

• with the application of a yoke made of special test steel, ensuring full magnetic saturation
• possessing a thickness of at least 10 mm to avoid saturation
• with a surface cleaned and smooth
• under conditions of gap-free contact (surface-to-surface)
• during pulling in a direction vertical to the mounting surface
• at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the working load may be lower depending on the following factors, starting with the most relevant:

• Distance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
• Angle of force application – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
• Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
• Steel grade – the best choice is pure iron steel. Hardened steels may generate lower lifting capacity.
• Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
• Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

* Lifting capacity was measured with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under shearing force the lifting capacity is smaller. Additionally, even a small distance {between} the magnet’s surface and the plate decreases the holding force.