XT-4 magnetyzery CO i WODY użytkowej - XT-4 magnetizer

Pros as well as cons of neodymium magnets.

In addition to their pulling strength, neodymium magnets provide the following advantages:

• Their power is durable, and after around ten years it drops only by ~1% (according to research),
• Neodymium magnets remain extremely resistant to demagnetization caused by external field sources,
• By using a smooth coating of gold, the element has an aesthetic look,
• Magnets are distinguished by impressive magnetic induction on the active area,
• Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures reaching 230°C and above...
• Thanks to the option of accurate forming and customization to individualized needs, magnetic components can be created in a variety of shapes and sizes, which expands the range of possible applications,
• Key role in electronics industry – they find application in data components, motor assemblies, precision medical tools, as well as modern systems.
• Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Drawbacks and weaknesses of neodymium magnets: tips and applications.

• They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
• When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and 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 - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
• Limited ability of creating threads in the magnet and complicated forms - preferred is cover - magnet mounting.
• Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small elements of these devices can complicate diagnosis medical in case of swallowing.
• With mass production the cost of neodymium magnets can be a barrier,

Magnetic strength at its maximum – what it depends on?

Holding force of 0 kg is a theoretical maximum value performed under the following configuration:

• using a base made of mild steel, functioning as a magnetic yoke
• whose transverse dimension is min. 10 mm
• with an ground touching surface
• under conditions of ideal adhesion (surface-to-surface)
• for force applied at a right angle (in the magnet axis)
• at ambient temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

During everyday use, the real power results from many variables, presented from the most important:

• Distance – the presence of foreign body (paint, tape, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
• Force direction – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
• Steel thickness – too thin plate does not accept the full field, causing part of the power to be wasted to the other side.
• Material type – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
• Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
• Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

* Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance {between} the magnet’s surface and the plate lowers the load capacity.