SM 32x500 [2xM8] / N52 - magnetic separator

Advantages and disadvantages of neodymium magnets.

Besides their magnetic performance, neodymium magnets are valued for these benefits:

• They do not lose power, even after nearly ten years – the decrease in power is only ~1% (theoretically),
• They retain their magnetic properties even under strong external field,
• The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to look better,
• Magnetic induction on the surface of the magnet turns out to be maximum,
• Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
• Considering the possibility of precise forming and customization to specialized requirements, magnetic components can be manufactured in a broad palette of shapes and sizes, which makes them more universal,
• Key role in modern technologies – they are utilized in magnetic memories, motor assemblies, medical devices, as well as industrial machines.
• Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

What to avoid - cons of neodymium magnets: tips and applications.

• Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
• We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
• When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
• Limited ability of making threads in the magnet and complicated shapes - preferred is cover - magnetic holder.
• Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
• Due to neodymium price, their price is higher than average,

Detachment force of the magnet in optimal conditions – what affects it?

The declared magnet strength refers to the limit force, recorded under ideal test conditions, specifically:

• using a sheet made of low-carbon steel, functioning as a magnetic yoke
• with a cross-section of at least 10 mm
• characterized by even structure
• under conditions of gap-free contact (metal-to-metal)
• for force acting at a right angle (in the magnet axis)
• at temperature room level

Determinants of practical lifting force of a magnet

In practice, the actual holding force is determined by several key aspects, presented from the most important:

• Distance (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
• Load vector – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
• Plate thickness – too thin steel does not close the flux, causing part of the power to be escaped to the other side.
• Material composition – 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. Unevenness creates an air distance.
• Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

* Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the holding force is lower. Additionally, even a slight gap {between} the magnet and the plate decreases the lifting capacity.

Advantages and disadvantages of neodymium magnets.

Besides their magnetic performance, neodymium magnets are valued for these benefits:

• They do not lose power, even after nearly ten years – the decrease in power is only ~1% (theoretically),
• They retain their magnetic properties even under strong external field,
• The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to look better,
• Magnetic induction on the surface of the magnet turns out to be maximum,
• Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
• Considering the possibility of precise forming and customization to specialized requirements, magnetic components can be manufactured in a broad palette of shapes and sizes, which makes them more universal,
• Key role in modern technologies – they are utilized in magnetic memories, motor assemblies, medical devices, as well as industrial machines.
• Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

What to avoid - cons of neodymium magnets: tips and applications.

• Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
• We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
• When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
• Limited ability of making threads in the magnet and complicated shapes - preferred is cover - magnetic holder.
• Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
• Due to neodymium price, their price is higher than average,

Detachment force of the magnet in optimal conditions – what affects it?

The declared magnet strength refers to the limit force, recorded under ideal test conditions, specifically:

• using a sheet made of low-carbon steel, functioning as a magnetic yoke
• with a cross-section of at least 10 mm
• characterized by even structure
• under conditions of gap-free contact (metal-to-metal)
• for force acting at a right angle (in the magnet axis)
• at temperature room level

Determinants of practical lifting force of a magnet

In practice, the actual holding force is determined by several key aspects, presented from the most important:

• Distance (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
• Load vector – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
• Plate thickness – too thin steel does not close the flux, causing part of the power to be escaped to the other side.
• Material composition – 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. Unevenness creates an air distance.
• Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

* Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the holding force is lower. Additionally, even a slight gap {between} the magnet and the plate decreases the lifting capacity.