SMZR 32x200 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140240
GTIN: 5906301813484
Diameter Ø [±0,1 mm]
32 mm
Height [±0,1 mm]
200 mm
Weight
1210 g
615.00 ZŁ with VAT / pcs + price for transport
500.00 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 rare earth magnets.
Besides their immense pulling force, neodymium magnets offer the following advantages:
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
- They are resistant to demagnetization induced by external magnetic fields,
- In other words, due to the shiny finish of nickel, the element looks attractive,
- Magnetic induction on the working layer of the magnet is maximum,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Possibility of detailed modeling as well as adjusting to concrete applications,
- Wide application in innovative solutions – they are used in mass storage devices, motor assemblies, precision medical tools, and modern systems.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Drawbacks and weaknesses of neodymium magnets: application proposals
- At strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic holder, due to difficulties in realizing threads inside the magnet and complex forms.
- Health risk resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these products are able to complicate diagnosis medical when they are in the body.
- With mass production the cost of neodymium magnets can be a barrier,
Maximum lifting capacity of the magnet – what affects it?
The lifting capacity listed is a result of laboratory testing executed under standard conditions:
- with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
- whose thickness equals approx. 10 mm
- with an ideally smooth touching surface
- with total lack of distance (no impurities)
- during pulling in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
In practice, the actual holding force results from several key aspects, presented from crucial:
- Gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Metal type – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
- Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
* Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance {between} the magnet’s surface and the plate reduces the lifting capacity.
Safe handling of NdFeB magnets
Magnetic media
Do not bring magnets close to a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.
Swallowing risk
Always keep magnets out of reach of children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are tragic.
Safe operation
Handle magnets with awareness. Their huge power can surprise even professionals. Plan your moves and respect their force.
Magnetic interference
An intense magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.
Bone fractures
Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!
Material brittleness
Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Warning for allergy sufferers
Some people suffer from a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Prolonged contact might lead to skin redness. We suggest use protective gloves.
Mechanical processing
Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Power loss in heat
Avoid heat. Neodymium magnets are sensitive to heat. If you need operation above 80°C, ask us about HT versions (H, SH, UH).
Life threat
Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or request help to work with the magnets.
Safety First!
More info about risks in the article: Safety of working with magnets.
