SM 32x425 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130464
GTIN: 5906301813354
Diameter Ø [±0,1 mm]
32 mm
Height [±0,1 mm]
425 mm
Weight
2353 g
1340.70 ZŁ with VAT / pcs + price for transport
1090.00 ZŁ net + 23% VAT / pcs
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SM 32x425 [2xM8] / N52 - magnetic separator
Magnetic properties of material N52
Physical properties of NdFeB
Shopping tips
Advantages and disadvantages of neodymium magnets NdFeB.
In addition to their long-term stability, neodymium magnets provide the following advantages:
- They have stable power, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
- They show superior resistance to demagnetization from external magnetic fields,
- Thanks to the polished finish and silver coating, they have an visually attractive appearance,
- They have exceptional magnetic induction on the surface of the magnet,
- With the right combination of materials, they reach increased thermal stability, enabling operation at or above 230°C (depending on the design),
- With the option for customized forming and personalized design, these magnets can be produced in multiple shapes and sizes, greatly improving engineering flexibility,
- Significant impact in advanced technical fields – they are used in hard drives, electromechanical systems, clinical machines and high-tech tools,
- Thanks to their concentrated strength, small magnets offer high magnetic performance, with minimal size,
Disadvantages of rare earth magnets:
- They can break when subjected to a powerful impact. If the magnets are exposed to shocks, they should be placed in a steel housing. The steel housing, in the form of a holder, protects the magnet from damage and enhances its overall durability,
- They lose power at extreme temperatures. Most neodymium magnets experience permanent degradation in strength when heated above 80°C (depending on the geometry and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
- They rust in a wet environment. For outdoor use, we recommend using waterproof magnets, such as those made of rubber,
- Limited ability to create internal holes in the magnet – the use of a housing is recommended,
- Safety concern due to small fragments may arise, if ingested accidentally, which is crucial in the context of child safety. Furthermore, minuscule fragments from these products might complicate medical imaging if inside the body,
- High unit cost – neodymium magnets are more expensive than other types of magnets (e.g., ferrite), which increases the cost of large-scale applications
Breakaway strength of the magnet in ideal conditions – what affects it?
The given pulling force of the magnet corresponds to the maximum force, calculated in the best circumstances, namely:
- using a steel plate with low carbon content, acting as a magnetic circuit closure
- of a thickness of at least 10 mm
- with a smooth surface
- in conditions of no clearance
- with vertical force applied
- under standard ambient temperature
Key elements affecting lifting force
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.
* Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the holding force is lower. In addition, even a slight gap {between} the magnet and the plate lowers the lifting capacity.
Handle Neodymium Magnets with Caution
If you have a nickel allergy, avoid contact with neodymium magnets.
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.
Under no circumstances should neodymium magnets be brought close to 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.
Keep neodymium magnets away from TV, wallet, and computer HDD.
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.
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 are not recommended for people with pacemakers.
Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.
Magnets should not be treated as toys. Therefore, it is not recommended for youngest children to have access to them.
Neodymium magnets are not toys. Do not allow children to play with them. They can be a significant choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing severe injuries, and even death.
Neodymium magnets can attract to each other, pinch the skin, and cause significant swellings.
If you have a finger between or on the path of attracting magnets, there may be a serious cut or a fracture.
Neodymium magnets are among the most powerful magnets on Earth. The astonishing force they generate between each other can shock you.
Read the information on our website on how to properly utilize neodymium magnets and avoid significant harm to your body and unintentional damage to the magnets.
Neodymium magnets can demagnetize at high temperatures.
Even though 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.
Magnets made of neodymium are especially fragile, which leads to shattering.
Neodymium magnetic are highly fragile, and by joining them in an uncontrolled manner, they will crumble. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of collision between the magnets, small metal fragments can be dispersed in different directions.
Caution!
In order for you to know how strong neodymium magnets are and why they are so dangerous, see the article - Dangerous very powerful neodymium magnets.
