CM PML-3 / N45 - magnetic gripper
magnetic gripper
Catalog no 100226
GTIN: 5906301812623
Weight
9400 g
Magnetization Direction
↑ axial
Load capacity
300 kg / 2941.99 N
938.99 ZŁ with VAT / pcs + price for transport
763.41 ZŁ net + 23% VAT / pcs
bulk discounts:
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Magnetic properties of material N45
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Strengths as well as weaknesses of NdFeB magnets.
Apart from their strong holding force, neodymium magnets have these key benefits:
- They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
- Neodymium magnets are highly resistant to demagnetization caused by external magnetic fields,
- A magnet with a shiny nickel surface has better aesthetics,
- Magnetic induction on the surface of the magnet remains extremely intense,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of exact machining and optimizing to atypical applications,
- Huge importance in modern technologies – they are used in HDD drives, motor assemblies, diagnostic systems, also other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in compact constructions
Disadvantages of neodymium magnets:
- At 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 experience a drop in power. 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
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complex forms.
- Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products can disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities
Maximum holding power of the magnet – what affects it?
The load parameter shown refers to the limit force, obtained under optimal environment, namely:
- with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by lack of roughness
- under conditions of ideal adhesion (surface-to-surface)
- during detachment in a direction perpendicular to the plane
- in neutral thermal conditions
Impact of factors on magnetic holding capacity in practice
It is worth knowing that the magnet holding may be lower influenced by elements below, in order of importance:
- Distance (betwixt the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
- Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
- Steel thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be lost into the air.
- Chemical composition of the base – mild steel attracts best. Higher carbon content lower magnetic properties and holding force.
- Surface finish – full contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).
* Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a slight gap {between} the magnet’s surface and the plate decreases the load capacity.
Safe handling of NdFeB magnets
Electronic hazard
Powerful magnetic fields can erase data on credit cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.
Shattering risk
Neodymium magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets leads to them breaking into small pieces.
Medical implants
Individuals with a pacemaker should keep an absolute distance from magnets. The magnetic field can interfere with the operation of the implant.
Keep away from electronics
Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Warning for allergy sufferers
A percentage of the population experience a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Frequent touching may cause a rash. We strongly advise use safety gloves.
Combustion hazard
Powder produced during cutting of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.
Caution required
Handle magnets with awareness. Their immense force can surprise even professionals. Plan your moves and respect their force.
Do not give to children
Neodymium magnets are not intended for children. Eating a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and requires immediate surgery.
Serious injuries
Pinching hazard: The attraction force is so great that it can result in blood blisters, crushing, and broken bones. Use thick gloves.
Heat warning
Avoid heat. Neodymium magnets are sensitive to heat. If you need operation above 80°C, look for HT versions (H, SH, UH).
Caution!
Learn more about hazards in the article: Safety of working with magnets.
