UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder
search holder
Catalog no 210339
GTIN: 5906301813989
Diameter Ø [±0,1 mm]
135 mm
Height [±0,1 mm]
40 mm
Weight
4300 g
Load capacity
680 kg / 6668.52 N
Coating
[NiCuNi] nickel
599.99 ZŁ with VAT / pcs + price for transport
487.80 ZŁ net + 23% VAT / pcs
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UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder
Magnetic properties of material N38
Physical properties of NdFeB
Shopping tips

Advantages as well as disadvantages of neodymium magnets NdFeB.
In addition to their long-term stability, neodymium magnets provide the following advantages:
- They do not lose their even during around 10 years – the decrease of power is only ~1% (according to tests),
- They are very resistant to demagnetization caused by external magnetic fields,
- In other words, due to the metallic gold coating, the magnet obtains an professional appearance,
- Magnetic induction on the surface of these magnets is very strong,
- Neodymium magnets are known for strong magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the shape),
- With the option for customized forming and targeted design, these magnets can be produced in multiple shapes and sizes, greatly improving engineering flexibility,
- Wide application in cutting-edge sectors – they are used in HDDs, electromechanical systems, healthcare devices and technologically developed systems,
- Compactness – despite their small size, they provide high effectiveness, making them ideal for precision applications
Disadvantages of neodymium magnets:
- They are prone to breaking when subjected to a strong impact. If the magnets are exposed to external force, we recommend in a metal holder. The steel housing, in the form of a holder, protects the magnet from cracks and increases its overall resistance,
- Magnets lose pulling force when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible field weakening (influenced by the magnet’s dimensions). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
- They rust in a wet environment, especially when used outside, we recommend using sealed magnets, such as those made of rubber,
- Limited ability to create precision features in the magnet – the use of a magnetic holder is recommended,
- Safety concern linked to microscopic shards may arise, when consumed by mistake, which is notable in the protection of children. Furthermore, minuscule fragments from these magnets may interfere with diagnostics when ingested,
- Due to a complex production process, their cost is above average,
Optimal lifting capacity of a neodymium magnet – what affects it?
The given strength of the magnet means the optimal strength, measured under optimal conditions, specifically:
- with the use of low-carbon steel plate acting as a magnetic yoke
- of a thickness of at least 10 mm
- with a polished side
- in conditions of no clearance
- in a perpendicular direction of force
- under standard ambient temperature
Determinants of lifting force in real conditions
Practical lifting force is dependent on factors, listed from the most critical to the less significant:
- Air gap between the magnet and the plate, because even a very small distance (e.g. 0.5 mm) can cause a drop in lifting force of up to 50%.
- Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
- Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
- Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
- Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
- Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.
* Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the holding force is lower. Additionally, even a small distance {between} the magnet’s surface and the plate reduces the load capacity.
Handle Neodymium Magnets with Caution
Dust and powder from neodymium magnets are flammable.
Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.
Neodymium magnets can demagnetize at high temperatures.
Despite the fact that magnets have been found to maintain their efficacy up to temperatures of 80°C or 175°F, it's essential to consider that this threshold may fluctuate depending on the magnet's type, configuration, and intended usage.
Neodymium magnets are extremely delicate, they easily break as well as can crumble.
Neodymium magnetic are extremely fragile, and by joining them in an uncontrolled manner, they will crack. Neodymium magnetic are made of metal and coated with a shiny nickel, but they are not as durable as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.
Do not give neodymium magnets to children.
Neodymium magnets are not toys. You cannot allow them to become toys for children. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.
Neodymium Magnets can attract to each other, pinch the skin, and cause significant injuries.
Magnets will jump and contact together within a distance of several to almost 10 cm from each other.
The magnet coating is made of nickel, so be cautious if you have an allergy.
Studies clearly indicate a small percentage of people who suffer from metal allergies such as nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.
Avoid bringing neodymium magnets close to a phone or GPS.
Magnetic fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.
Neodymium magnets are the strongest magnets ever created, and their power can surprise you.
To handle magnets properly, it is best to familiarize yourself with our information beforehand. This will help you avoid significant harm to your body and the magnets themselves.
You should maintain neodymium magnets at a safe distance from the wallet, computer, and TV.
Magnetic fields generated by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other similar devices. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.
Keep neodymium magnets away from people with pacemakers.
Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.
Safety rules!
To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are very powerful neodymium magnets?.