SM 32x375 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130379
GTIN: 5906301813279
Diameter Ø
32 mm [±1 mm]
Height
375 mm [±1 mm]
Weight
2010 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1119.30 ZŁ with VAT / pcs + price for transport
910.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Magnetic properties of material N42
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Advantages and disadvantages of rare earth magnets.
Besides their tremendous field intensity, neodymium magnets offer the following advantages:
- They do not lose strength, even during approximately ten years – the drop in lifting capacity is only ~1% (according to tests),
- Neodymium magnets are characterized by highly resistant to magnetic field loss caused by magnetic disturbances,
- By applying a decorative coating of silver, the element acquires an modern look,
- Magnetic induction on the working part of the magnet is very high,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Thanks to freedom in designing and the ability to adapt to individual projects,
- Wide application in future technologies – they are used in mass storage devices, electric drive systems, diagnostic systems, and complex engineering applications.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Disadvantages of neodymium magnets:
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of producing nuts in the magnet and complex shapes - preferred is cover - mounting mechanism.
- Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that small components of these products can disrupt the diagnostic process medical when they are in the body.
- Due to complex production process, their price exceeds standard values,
Optimal lifting capacity of a neodymium magnet – what affects it?
The specified lifting capacity concerns the peak performance, recorded under laboratory conditions, specifically:
- using a base made of low-carbon steel, acting as a ideal flux conductor
- whose transverse dimension is min. 10 mm
- with an polished touching surface
- under conditions of no distance (surface-to-surface)
- under perpendicular application of breakaway force (90-degree angle)
- at standard ambient temperature
Determinants of practical lifting force of a magnet
Bear in mind that the working load will differ influenced by elements below, in order of importance:
- Clearance – the presence of any layer (paint, tape, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and lifting capacity.
- Surface structure – the more even the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
- Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
* Lifting capacity was determined using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance {between} the magnet and the plate decreases the load capacity.
Warnings
Combustion hazard
Machining of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Heat warning
Watch the temperature. Heating the magnet to high heat will ruin its magnetic structure and strength.
Adults only
Strictly keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are very dangerous.
Data carriers
Equipment safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).
Implant safety
Warning for patients: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.
Precision electronics
GPS units and mobile phones are highly sensitive to magnetism. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Magnets are brittle
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Handling rules
Be careful. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.
Crushing force
Large magnets can break fingers in a fraction of a second. Never place your hand between two attracting surfaces.
Avoid contact if allergic
Certain individuals have a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching may cause a rash. It is best to wear safety gloves.
Attention!
More info about hazards in the article: Magnet Safety Guide.
