SM 32x250 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130299
GTIN: 5906301812920
Diameter Ø [±0,1 mm]
32 mm
Height [±0,1 mm]
250 mm
Weight
1240 g
750.30 ZŁ with VAT / pcs + price for transport
610.00 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?Hunting for a discount?
Call us
+48 22 499 98 98
alternatively get in touch through
our online form
our website.
Weight and shape of neodymium magnets can be analyzed with our
modular calculator.
Order by 14:00 and we’ll ship today!
SM 32x250 [2xM8] / N42 - magnetic separator
Magnetic properties of material N42
Physical properties of NdFeB
Shopping tips
Advantages as well as disadvantages of neodymium magnets NdFeB.
In addition to their immense pulling force, neodymium magnets offer the following advantages:
- They do not lose their even over approximately ten years – the reduction of power is only ~1% (based on measurements),
- They protect against demagnetization induced by surrounding electromagnetic environments remarkably well,
- Because of the brilliant layer of gold, the component looks high-end,
- They exhibit superior levels of magnetic induction near the outer area of the magnet,
- They are suitable for high-temperature applications, operating effectively at 230°C+ due to advanced heat resistance and form-specific properties,
- Thanks to the freedom in shaping and the capability to adapt to individual requirements, neodymium magnets can be created in diverse shapes and sizes, which broadens their usage potential,
- Important function in advanced technical fields – they serve a purpose in data storage devices, electromechanical systems, diagnostic apparatus and sophisticated instruments,
- Relatively small size with high magnetic force – neodymium magnets offer intense magnetic field in tiny dimensions, which makes them ideal in miniature devices
Disadvantages of rare earth magnets:
- They may fracture when subjected to a sudden impact. If the magnets are exposed to physical collisions, it is suggested to place them in a metal holder. The steel housing, in the form of a holder, protects the magnet from damage and increases its overall strength,
- High temperatures may significantly reduce the magnetic power of neodymium magnets. Typically, above 80°C, they experience permanent deterioration in performance (depending on form). 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 damp air can degrade. Therefore, for outdoor applications, it's best to use waterproof types made of coated materials,
- Limited ability to create internal holes in the magnet – the use of a housing is recommended,
- Safety concern from tiny pieces may arise, especially if swallowed, which is crucial in the protection of children. Furthermore, small elements from these magnets can interfere with diagnostics when ingested,
- Due to the price of neodymium, their cost is relatively high,
Optimal lifting capacity of a neodymium magnet – what affects it?
The given lifting capacity of the magnet means the maximum lifting force, assessed in a perfect environment, that is:
- using a steel plate with low carbon content, acting as a magnetic circuit closure
- having a thickness of no less than 10 millimeters
- with a polished side
- with zero air gap
- under perpendicular detachment force
- in normal thermal conditions
Lifting capacity in practice – influencing factors
Practical lifting force is determined by factors, by priority:
- Air gap between the magnet and the plate, since 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 testing was performed on a smooth plate of optimal thickness, under perpendicular forces, whereas under shearing force the holding force is lower. Additionally, even a minimal clearance {between} the magnet and the plate reduces the load capacity.
Handle Neodymium Magnets Carefully
Keep neodymium magnets as far away as possible from GPS and smartphones.
Magnetic fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.
Dust and powder from neodymium magnets are highly flammable.
Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. If the magnet is crushed into fine powder or dust, it becomes highly flammable.
Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.
Magnets will attract each other within a distance of several to around 10 cm from each other. Remember not to insert fingers between magnets or in their path when attract. Magnets, depending on their size, can even cut off a finger or there can be a serious pressure or even a fracture.
Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.
Strong magnetic fields emitted by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. They can also damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.
Neodymium magnets can demagnetize at high temperatures.
Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.
Neodymium magnets are the strongest magnets ever invented. Their strength can shock you.
Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional damage to the magnets.
Neodymium magnets are not recommended for people with pacemakers.
Neodymium magnets produce strong magnetic fields that can interfere with the operation of a heart pacemaker. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.
The magnet is coated with nickel. Therefore, exercise caution 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, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.
Neodymium magnets should not be around children.
Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.
Neodymium magnetic are fragile as well as can easily crack and get damaged.
Neodymium magnets are characterized by considerable fragility. Magnets made of neodymium 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.
Be careful!
So you are aware of why neodymium magnets are so dangerous, read the article titled How very dangerous are powerful neodymium magnets?.