SM 32x125 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130357
GTIN: 5906301813057
Diameter Ø [±0,1 mm]
32 mm
Height [±0,1 mm]
125 mm
Weight
690 g
455.10 ZŁ with VAT / pcs + price for transport
370.00 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 as well as cons of neodymium magnets.
Besides their tremendous strength, neodymium magnets offer the following advantages:
- Their power remains stable, and after around ten years it decreases only by ~1% (according to research),
- Magnets very well defend themselves against demagnetization caused by ambient magnetic noise,
- In other words, due to the shiny layer of silver, the element looks attractive,
- Neodymium magnets ensure maximum magnetic induction on a small area, which allows for strong attraction,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
- In view of the option of flexible forming and adaptation to individualized requirements, NdFeB magnets can be created in a broad palette of forms and dimensions, which increases their versatility,
- Wide application in future technologies – they are used in hard drives, electromotive mechanisms, advanced medical instruments, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in small systems
Disadvantages of neodymium magnets:
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Limited possibility of making nuts in the magnet and complex forms - recommended is cover - magnetic holder.
- Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Furthermore, small elements of these products can complicate diagnosis medical in case of swallowing.
- With mass production the cost of neodymium magnets can be a barrier,
Maximum magnetic pulling force – what affects it?
Information about lifting capacity was defined for the most favorable conditions, assuming:
- using a base made of mild steel, acting as a magnetic yoke
- possessing a thickness of minimum 10 mm to avoid saturation
- with an polished touching surface
- under conditions of gap-free contact (surface-to-surface)
- under axial force vector (90-degree angle)
- at room temperature
Lifting capacity in practice – influencing factors
Real force is influenced by specific conditions, including (from most important):
- Distance – the presence of any layer (paint, dirt, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Load vector – maximum parameter is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
- Surface quality – the smoother and more polished the surface, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
- Temperature influence – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
* Lifting capacity was assessed with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance {between} the magnet and the plate lowers the lifting capacity.
Warnings
Respect the power
Use magnets with awareness. Their powerful strength can shock even professionals. Stay alert and respect their force.
Fragile material
Despite metallic appearance, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Warning for heart patients
Warning for patients: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or request help to handle the magnets.
Magnetic media
Very strong magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.
Finger safety
Protect your hands. Two large magnets will join instantly with a force of massive weight, destroying anything in their path. Be careful!
Fire risk
Dust produced during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Magnetic interference
GPS units and mobile phones are highly sensitive to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Metal Allergy
Some people have a sensitization to Ni, which is the standard coating for neodymium magnets. Prolonged contact might lead to dermatitis. It is best to use protective gloves.
Demagnetization risk
Watch the temperature. Heating the magnet to high heat will destroy its properties and pulling force.
Swallowing risk
Strictly keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are very dangerous.
Danger!
More info about hazards in the article: Safety of working with magnets.
