UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread

Advantages and disadvantages of rare earth magnets.

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

• They retain magnetic properties for around 10 years – the loss is just ~1% (according to analyses),
• They do not lose their magnetic properties even under close interference source,
• The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to look better,
• They show high magnetic induction at the operating surface, making them more effective,
• Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
• Thanks to flexibility in constructing and the ability to modify to unusual requirements,
• Significant place in electronics industry – they serve a role in data components, electric drive systems, medical devices, as well as multitasking production systems.
• Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Characteristics of disadvantages of neodymium magnets: application proposals

• They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
• Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
• They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
• We recommend a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated shapes.
• Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
• With large orders the cost of neodymium magnets is a challenge,

Maximum lifting capacity of the magnet – what it depends on?

The load parameter shown concerns the maximum value, measured under laboratory conditions, meaning:

• using a plate made of mild steel, serving as a ideal flux conductor
• possessing a massiveness of min. 10 mm to avoid saturation
• characterized by even structure
• with zero gap (no paint)
• under perpendicular force direction (90-degree angle)
• in neutral thermal conditions

Determinants of lifting force in real conditions

It is worth knowing that the application force may be lower depending on elements below, starting with the most relevant:

• Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
• Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
• Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the flux to be wasted to the other side.
• Metal type – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
• Base smoothness – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
• Temperature – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.

* Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap {between} the magnet’s surface and the plate lowers the load capacity.

Advantages and disadvantages of rare earth magnets.

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

• They retain magnetic properties for around 10 years – the loss is just ~1% (according to analyses),
• They do not lose their magnetic properties even under close interference source,
• The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to look better,
• They show high magnetic induction at the operating surface, making them more effective,
• Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
• Thanks to flexibility in constructing and the ability to modify to unusual requirements,
• Significant place in electronics industry – they serve a role in data components, electric drive systems, medical devices, as well as multitasking production systems.
• Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Characteristics of disadvantages of neodymium magnets: application proposals

• They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
• Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
• They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
• We recommend a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated shapes.
• Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
• With large orders the cost of neodymium magnets is a challenge,

Maximum lifting capacity of the magnet – what it depends on?

The load parameter shown concerns the maximum value, measured under laboratory conditions, meaning:

• using a plate made of mild steel, serving as a ideal flux conductor
• possessing a massiveness of min. 10 mm to avoid saturation
• characterized by even structure
• with zero gap (no paint)
• under perpendicular force direction (90-degree angle)
• in neutral thermal conditions

Determinants of lifting force in real conditions

It is worth knowing that the application force may be lower depending on elements below, starting with the most relevant:

• Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
• Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
• Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the flux to be wasted to the other side.
• Metal type – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
• Base smoothness – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
• Temperature – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.

* Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap {between} the magnet’s surface and the plate lowers the load capacity.