SM 32x150 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130297
GTIN: 5906301812906
Diameter Ø
32 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
804 g
Magnetic Flux
~ 8 000 Gauss [±5%]
455.10 ZŁ with VAT / pcs + price for transport
370.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Strength along with structure of a magnet can be calculated using our
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Magnetic properties of material N42
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Strengths and weaknesses of neodymium magnets.
Besides their durability, neodymium magnets are valued for these benefits:
- They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
- Neodymium magnets are characterized by extremely resistant to loss of magnetic properties caused by external magnetic fields,
- In other words, due to the aesthetic finish of gold, the element is aesthetically pleasing,
- Neodymium magnets ensure maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of detailed creating and adapting to complex requirements,
- Fundamental importance in high-tech industry – they find application in mass storage devices, motor assemblies, medical devices, also technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
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.
- Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- We suggest cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
- Health risk to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Maximum magnetic pulling force – what affects it?
The declared magnet strength refers to the maximum value, measured under laboratory conditions, meaning:
- using a plate made of mild steel, serving as a magnetic yoke
- with a thickness minimum 10 mm
- characterized by even structure
- under conditions of ideal adhesion (metal-to-metal)
- during detachment in a direction vertical to the mounting surface
- in stable room temperature
Practical lifting capacity: influencing factors
Real force is influenced by specific conditions, mainly (from most important):
- Clearance – the presence of any layer (rust, tape, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
- Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Material type – ideal substrate is pure iron steel. Cast iron may generate lower lifting capacity.
- Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).
* Lifting capacity was determined by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance {between} the magnet and the plate reduces the holding force.
Warnings
Nickel allergy
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness happens, cease working with magnets and use protective gear.
Crushing risk
Big blocks can smash fingers in a fraction of a second. Never put your hand betwixt two strong magnets.
Cards and drives
Very strong magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.
Adults only
Always keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.
Fire warning
Dust generated during grinding of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Magnet fragility
Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Medical implants
Patients with a ICD must keep an safe separation from magnets. The magnetic field can disrupt the operation of the implant.
Keep away from electronics
Note: rare earth magnets generate a field that disrupts precision electronics. Maintain a safe distance from your phone, tablet, and GPS.
Handling guide
Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Maximum temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Safety First!
Learn more about risks in the article: Safety of working with magnets.
