KM HF - 22 kg - magnetic bracket

Advantages and disadvantages of neodymium magnets.

Apart from their superior holding force, neodymium magnets have these key benefits:

• They do not lose magnetism, even after nearly ten years – the drop in strength is only ~1% (according to tests),
• They are noted for resistance to demagnetization induced by external disturbances,
• In other words, due to the aesthetic finish of silver, the element is aesthetically pleasing,
• Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
• Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
• Thanks to modularity in constructing and the ability to adapt to individual projects,
• Versatile presence in future technologies – they are commonly used in hard drives, electromotive mechanisms, precision medical tools, as well as technologically advanced constructions.
• Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Characteristics of disadvantages of neodymium magnets and ways of using them

• They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
• We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
• Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
• Limited possibility of creating threads in the magnet and complex shapes - preferred is casing - magnet mounting.
• Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child safety. Furthermore, tiny parts of these devices can complicate diagnosis medical when they are in the body.
• Due to complex production process, their price exceeds standard values,

Maximum holding power of the magnet – what affects it?

Magnet power is the result of a measurement for the most favorable conditions, taking into account:

• using a sheet made of mild steel, functioning as a circuit closing element
• possessing a thickness of minimum 10 mm to avoid saturation
• with a plane cleaned and smooth
• with zero gap (without impurities)
• during pulling in a direction vertical to the plane
• at conditions approx. 20°C

Determinants of practical lifting force of a magnet

Bear in mind that the magnet holding may be lower influenced by elements below, starting with the most relevant:

• Air gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
• Direction of force – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
• Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
• Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
• Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
• Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

* Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a slight gap {between} the magnet’s surface and the plate decreases the load capacity.

Advantages and disadvantages of neodymium magnets.

Apart from their superior holding force, neodymium magnets have these key benefits:

• They do not lose magnetism, even after nearly ten years – the drop in strength is only ~1% (according to tests),
• They are noted for resistance to demagnetization induced by external disturbances,
• In other words, due to the aesthetic finish of silver, the element is aesthetically pleasing,
• Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
• Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
• Thanks to modularity in constructing and the ability to adapt to individual projects,
• Versatile presence in future technologies – they are commonly used in hard drives, electromotive mechanisms, precision medical tools, as well as technologically advanced constructions.
• Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Characteristics of disadvantages of neodymium magnets and ways of using them

• They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
• We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
• Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
• Limited possibility of creating threads in the magnet and complex shapes - preferred is casing - magnet mounting.
• Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child safety. Furthermore, tiny parts of these devices can complicate diagnosis medical when they are in the body.
• Due to complex production process, their price exceeds standard values,

Maximum holding power of the magnet – what affects it?

Magnet power is the result of a measurement for the most favorable conditions, taking into account:

• using a sheet made of mild steel, functioning as a circuit closing element
• possessing a thickness of minimum 10 mm to avoid saturation
• with a plane cleaned and smooth
• with zero gap (without impurities)
• during pulling in a direction vertical to the plane
• at conditions approx. 20°C

Determinants of practical lifting force of a magnet

Bear in mind that the magnet holding may be lower influenced by elements below, starting with the most relevant:

• Air gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
• Direction of force – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
• Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
• Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
• Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
• Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

* Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a slight gap {between} the magnet’s surface and the plate decreases the load capacity.