SMZR 32x125 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140238
GTIN: 5906301813460
Diameter Ø [±0,1 mm]
32 mm
Height [±0,1 mm]
125 mm
Weight
690 g
430.50 ZŁ with VAT / pcs + price for transport
350.00 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
Strengths and weaknesses of NdFeB magnets.
Apart from their strong magnetic energy, neodymium magnets have these key benefits:
- They do not lose magnetism, even over around 10 years – the decrease in strength is only ~1% (theoretically),
- They feature excellent resistance to magnetism drop when exposed to external magnetic sources,
- By covering with a reflective coating of gold, the element acquires an aesthetic look,
- Magnets have extremely high magnetic induction on the outer layer,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Considering the option of accurate forming and adaptation to specialized projects, magnetic components can be modeled in a broad palette of shapes and sizes, which amplifies use scope,
- Key role in modern industrial fields – they are commonly used in data components, drive modules, diagnostic systems, as well as other advanced devices.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Disadvantages of NdFeB magnets:
- At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Limited ability of producing threads in the magnet and complicated shapes - recommended is cover - magnet mounting.
- Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Optimal lifting capacity of a neodymium magnet – what contributes to it?
The lifting capacity listed is a measurement result executed under standard conditions:
- on a block made of mild steel, optimally conducting the magnetic field
- whose thickness equals approx. 10 mm
- with an polished contact surface
- without the slightest clearance between the magnet and steel
- under perpendicular force direction (90-degree angle)
- at temperature room level
Key elements affecting lifting force
In practice, the actual lifting capacity depends on many variables, listed from crucial:
- Gap between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – mild steel gives the best results. Alloy steels reduce magnetic permeability and lifting capacity.
- Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).
* Lifting capacity was determined using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the lifting capacity is smaller. Additionally, even a small distance {between} the magnet’s surface and the plate decreases the load capacity.
Precautions when working with neodymium magnets
Electronic hazard
Data protection: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, mechanical watches).
Fragile material
NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them breaking into shards.
Dust is flammable
Mechanical processing of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Adults only
Only for adults. Tiny parts can be swallowed, causing intestinal necrosis. Store away from children and animals.
Serious injuries
Watch your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Impact on smartphones
Navigation devices and smartphones are highly sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.
Caution required
Handle magnets with awareness. Their huge power can surprise even professionals. Plan your moves and respect their force.
Operating temperature
Regular neodymium magnets (grade N) lose power when the temperature exceeds 80°C. Damage is permanent.
Medical implants
Patients with a ICD should keep an safe separation from magnets. The magnetic field can disrupt the functioning of the implant.
Allergic reactions
Certain individuals have a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Frequent touching can result in dermatitis. It is best to use protective gloves.
Danger!
Need more info? Read our article: Are neodymium magnets dangerous?
