FM Ruszt magnetyczny do leja fi 200 jednopoziomowy / N52 - magnetic filter

Advantages and disadvantages of rare earth magnets.

Besides their exceptional strength, neodymium magnets offer the following advantages:

• They retain full power for around 10 years – the loss is just ~1% (according to analyses),
• Neodymium magnets prove to be extremely resistant to demagnetization caused by magnetic disturbances,
• By using a decorative layer of nickel, the element has an professional look,
• Neodymium magnets achieve maximum magnetic induction on a contact point, which increases force concentration,
• Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
• In view of the ability of precise molding and customization to unique requirements, magnetic components can be manufactured in a variety of forms and dimensions, which makes them more universal,
• Wide application in future technologies – they are commonly used in magnetic memories, drive modules, diagnostic systems, as well as complex engineering applications.
• Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in miniature devices

Drawbacks and weaknesses of neodymium magnets: tips and applications.

• Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
• Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
• Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
• Limited possibility of making threads in the magnet and complex shapes - preferred is a housing - magnetic holder.
• Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
• Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Maximum lifting force for a neodymium magnet – what affects it?

The declared magnet strength refers to the peak performance, recorded under optimal environment, specifically:

• on a block made of structural steel, effectively closing the magnetic flux
• possessing a thickness of at least 10 mm to ensure full flux closure
• with a plane free of scratches
• without any air gap between the magnet and steel
• during detachment in a direction vertical to the plane
• at ambient temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Holding efficiency is influenced by specific conditions, including (from most important):

• Clearance – the presence of foreign body (paint, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
• Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
• Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
• Chemical composition of the base – mild steel gives the best results. Alloy steels lower magnetic properties and holding force.
• Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
• Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

* Lifting capacity was assessed using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance {between} the magnet’s surface and the plate decreases the holding force.

Advantages and disadvantages of rare earth magnets.

Besides their exceptional strength, neodymium magnets offer the following advantages:

• They retain full power for around 10 years – the loss is just ~1% (according to analyses),
• Neodymium magnets prove to be extremely resistant to demagnetization caused by magnetic disturbances,
• By using a decorative layer of nickel, the element has an professional look,
• Neodymium magnets achieve maximum magnetic induction on a contact point, which increases force concentration,
• Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
• In view of the ability of precise molding and customization to unique requirements, magnetic components can be manufactured in a variety of forms and dimensions, which makes them more universal,
• Wide application in future technologies – they are commonly used in magnetic memories, drive modules, diagnostic systems, as well as complex engineering applications.
• Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in miniature devices

Drawbacks and weaknesses of neodymium magnets: tips and applications.

• Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
• Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
• Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
• Limited possibility of making threads in the magnet and complex shapes - preferred is a housing - magnetic holder.
• Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
• Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Maximum lifting force for a neodymium magnet – what affects it?

The declared magnet strength refers to the peak performance, recorded under optimal environment, specifically:

• on a block made of structural steel, effectively closing the magnetic flux
• possessing a thickness of at least 10 mm to ensure full flux closure
• with a plane free of scratches
• without any air gap between the magnet and steel
• during detachment in a direction vertical to the plane
• at ambient temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Holding efficiency is influenced by specific conditions, including (from most important):

• Clearance – the presence of foreign body (paint, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
• Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
• Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
• Chemical composition of the base – mild steel gives the best results. Alloy steels lower magnetic properties and holding force.
• Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
• Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

* Lifting capacity was assessed using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance {between} the magnet’s surface and the plate decreases the holding force.