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
bulk discounts:
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Magnetic properties of material N52
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Pros and cons of NdFeB magnets.
Apart from their notable magnetism, neodymium magnets have these key benefits:
- They retain attractive force for almost 10 years – the drop is just ~1% (in theory),
- They are noted for resistance to demagnetization induced by external field influence,
- In other words, due to the aesthetic surface of nickel, the element is aesthetically pleasing,
- Magnetic induction on the top side of the magnet turns out to be very high,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Considering the potential of precise forming and customization to unique requirements, neodymium magnets can be produced in a wide range of forms and dimensions, which amplifies use scope,
- Significant place in modern industrial fields – they are used in mass storage devices, electric motors, diagnostic systems, as well as technologically advanced constructions.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Disadvantages of NdFeB magnets:
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises their durability
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Limited possibility of making nuts in the magnet and complicated shapes - preferred is casing - mounting mechanism.
- Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Maximum lifting force for a neodymium magnet – what contributes to it?
The specified lifting capacity represents the limit force, obtained under ideal test conditions, meaning:
- on a base made of mild steel, optimally conducting the magnetic flux
- whose transverse dimension is min. 10 mm
- with an polished touching surface
- under conditions of no distance (surface-to-surface)
- for force acting at a right angle (in the magnet axis)
- in temp. approx. 20°C
Determinants of practical lifting force of a magnet
In practice, the actual holding force results from a number of factors, ranked from the most important:
- Distance (betwixt the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
- Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
- Plate material – low-carbon steel gives the best results. Alloy steels lower magnetic permeability and holding force.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
- Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
* Lifting capacity was assessed with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the lifting capacity is smaller. Moreover, even a small distance {between} the magnet and the plate reduces the load capacity.
H&S for magnets
Do not overheat magnets
Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Mechanical processing
Machining of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Medical interference
People with a ICD have to keep an absolute distance from magnets. The magnetism can disrupt the operation of the implant.
Bone fractures
Big blocks can break fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.
Magnets are brittle
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Choking Hazard
Absolutely store magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are tragic.
Immense force
Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.
Keep away from electronics
GPS units and smartphones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Electronic devices
Very strong magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Stay away of min. 10 cm.
Warning for allergy sufferers
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, cease handling magnets and use protective gear.
Important!
More info about risks in the article: Safety of working with magnets.
