SM 19x225 [2xM6] / N50 - magnetic separator
magnetic separator
Catalog no 130241
GTIN: 5906301812708
Diameter Ø [±0,1 mm]
19 mm
Height [±0,1 mm]
225 mm
Weight
0.01 g
492.00 ZŁ with VAT / pcs + price for transport
400.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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SM 19x225 [2xM6] / N50 - magnetic separator
Magnetic properties of material N50
Physical properties of NdFeB
Shopping tips
Advantages as well as disadvantages of neodymium magnets NdFeB.
Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
- They virtually do not lose strength, because even after ten years, the decline in efficiency is only ~1% (based on calculations),
- Their ability to resist magnetic interference from external fields is among the best,
- Because of the reflective layer of gold, the component looks high-end,
- They have very high magnetic induction on the surface of the magnet,
- These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to build),
- With the option for fine forming and precise design, these magnets can be produced in various shapes and sizes, greatly improving application potential,
- Significant impact in new technology industries – they serve a purpose in HDDs, electric motors, medical equipment or even high-tech tools,
- Compactness – despite their small size, they generate strong force, making them ideal for precision applications
Disadvantages of magnetic elements:
- They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to shocks, it is advisable to use in a metal holder. The steel housing, in the form of a holder, protects the magnet from damage , and at the same time reinforces its overall durability,
- High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent decline in performance (depending on height). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
- Magnets exposed to wet conditions can oxidize. Therefore, for outdoor applications, we suggest waterproof types made of non-metallic composites,
- The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is restricted,
- Safety concern due to small fragments may arise, in case of ingestion, which is crucial in the protection of children. It should also be noted that tiny components from these devices might complicate medical imaging after being swallowed,
- In cases of tight budgets, neodymium magnet cost is a challenge,
Maximum lifting capacity of the magnet – what affects it?
The given holding capacity of the magnet means the highest holding force, assessed in the best circumstances, specifically:
- using a steel plate with low carbon content, serving as a magnetic circuit closure
- of a thickness of at least 10 mm
- with a refined outer layer
- in conditions of no clearance
- in a perpendicular direction of force
- at room temperature
Impact of factors on magnetic holding capacity in practice
Practical lifting force is dependent on factors, listed from the most critical to the less significant:
- Air gap between the magnet and the plate, as 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.
* Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance {between} the magnet’s surface and the plate decreases the holding force.
Caution with Neodymium Magnets
Avoid contact with neodymium magnets if you have a nickel allergy.
Studies show a small percentage of people have allergies to certain metals, including 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.
Neodymium magnets can demagnetize at high temperatures.
Even though magnets have been observed 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 should not be near 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.
Magnets are not toys, children should not play with them.
Not all neodymium magnets are toys, so do not let children play with them. Small magnets pose a serious choking hazard or can attract to each other in the intestines. 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 due to their immense internal force, causing the skin and other body parts to get pinched and resulting in significant injuries.
Magnets will jump and also clash together within a radius of several to almost 10 cm from each other.
Magnets made of neodymium are fragile and can easily crack and get damaged.
Magnets made of neodymium are highly delicate, and by joining them in an uncontrolled manner, they will crack. Neodymium magnets are made of metal and coated with a shiny nickel, but they are not as durable as steel. At the moment of connection between the magnets, small metal fragments can be dispersed in different directions.
Comparing neodymium magnets to ferrite magnets (found in speakers), they are 10 times more powerful, and their strength can shock you.
On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.
Keep neodymium magnets as far away as possible from GPS and smartphones.
Magnetic fields interfere with compasses and magnetometers used in navigation for air and sea transport, as well as internal compasses of smartphones and GPS devices.
Dust and powder from neodymium magnets are flammable.
Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.
Do not place neodymium magnets near a computer HDD, TV, and wallet.
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. They can also damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.
Warning!
In order for you to know how powerful neodymium magnets are and why they are so dangerous, see the article - Dangerous powerful neodymium magnets.
