UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

Advantages and disadvantages of rare earth magnets.

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

• Their strength is durable, and after around ten years it decreases only by ~1% (theoretically),
• They do not lose their magnetic properties even under external field action,
• A magnet with a metallic nickel surface has better aesthetics,
• Magnets exhibit huge magnetic induction on the outer layer,
• Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
• Thanks to flexibility in constructing and the ability to modify to client solutions,
• Huge importance in modern industrial fields – they are used in data components, brushless drives, medical equipment, and complex engineering applications.
• Thanks to concentrated force, small magnets offer high operating force, in miniature format,

What to avoid - cons of neodymium magnets and proposals for their use:

• To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
• When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
• When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
• We recommend casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
• Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical after entering the body.
• Due to neodymium price, their price is higher than average,

Maximum lifting capacity of the magnet – what contributes to it?

Breakaway force was determined for optimal configuration, including:

• using a base made of low-carbon steel, functioning as a circuit closing element
• possessing a thickness of at least 10 mm to avoid saturation
• with a surface cleaned and smooth
• without any air gap between the magnet and steel
• for force acting at a right angle (in the magnet axis)
• at standard ambient temperature

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity is determined by many variables, listed from crucial:

• Air gap (between the magnet and the plate), because even a tiny clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
• Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
• Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
• Plate material – mild steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
• Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
• Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.

* Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance {between} the magnet’s surface and the plate lowers the load capacity.

Advantages and disadvantages of rare earth magnets.

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

• Their strength is durable, and after around ten years it decreases only by ~1% (theoretically),
• They do not lose their magnetic properties even under external field action,
• A magnet with a metallic nickel surface has better aesthetics,
• Magnets exhibit huge magnetic induction on the outer layer,
• Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
• Thanks to flexibility in constructing and the ability to modify to client solutions,
• Huge importance in modern industrial fields – they are used in data components, brushless drives, medical equipment, and complex engineering applications.
• Thanks to concentrated force, small magnets offer high operating force, in miniature format,

What to avoid - cons of neodymium magnets and proposals for their use:

• To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
• When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
• When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
• We recommend casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
• Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical after entering the body.
• Due to neodymium price, their price is higher than average,

Maximum lifting capacity of the magnet – what contributes to it?

Breakaway force was determined for optimal configuration, including:

• using a base made of low-carbon steel, functioning as a circuit closing element
• possessing a thickness of at least 10 mm to avoid saturation
• with a surface cleaned and smooth
• without any air gap between the magnet and steel
• for force acting at a right angle (in the magnet axis)
• at standard ambient temperature

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity is determined by many variables, listed from crucial:

• Air gap (between the magnet and the plate), because even a tiny clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
• Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
• Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
• Plate material – mild steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
• Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
• Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.

* Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance {between} the magnet’s surface and the plate lowers the load capacity.