AM klisza magnetyczna 50 x 50 mm - magnetic accessories
magnetic accessories
Catalog no 080471
GTIN/EAN: 5906301812517
Weight
0.05 g
24.60 ZŁ with VAT / pcs + price for transport
20.00 ZŁ net + 23% VAT / pcs
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Detailed specification - AM klisza magnetyczna 50 x 50 mm - magnetic accessories
Specification / characteristics - AM klisza magnetyczna 50 x 50 mm - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080471 |
| GTIN/EAN | 5906301812517 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 0.05 g |
| Manufacturing Tolerance | ±1 mm |
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
| properties | values | units |
|---|---|---|
| Vickers hardness | ≥550 | Hv |
| Density | ≥7.4 | g/cm3 |
| Curie Temperature TC | 312 - 380 | °C |
| Curie Temperature TF | 593 - 716 | °F |
| Specific resistance | 150 | μΩ⋅cm |
| Bending strength | 250 | MPa |
| Compressive strength | 1000~1100 | MPa |
| Thermal expansion parallel (∥) to orientation (M) | (3-4) x 10-6 | °C-1 |
| Thermal expansion perpendicular (⊥) to orientation (M) | -(1-3) x 10-6 | °C-1 |
| Young's modulus | 1.7 x 104 | kg/mm² |
Elemental analysis
| iron (Fe) | 64% – 68% |
| neodymium (Nd) | 29% – 32% |
| boron (B) | 1.1% – 1.2% |
| dysprosium (Dy) | 0.5% – 2.0% |
| coating (Ni-Cu-Ni) | < 0.05% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of rare earth magnets.
Advantages
- They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- Neodymium magnets are characterized by highly resistant to loss of magnetic properties caused by external field sources,
- By using a reflective layer of silver, the element has an professional look,
- Magnets are distinguished by excellent magnetic induction on the working surface,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling action at temperatures reaching 230°C and above...
- Possibility of precise modeling as well as modifying to concrete requirements,
- Huge importance in high-tech industry – they are utilized in HDD drives, electromotive mechanisms, medical devices, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in miniature devices
Cons
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets experience a drop in force. 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
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in realizing nuts and complicated shapes in magnets, we recommend using casing - magnetic mount.
- Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum lifting capacity of the magnet – what affects it?
- with the application of a sheet made of special test steel, ensuring maximum field concentration
- whose transverse dimension reaches at least 10 mm
- characterized by lack of roughness
- without the slightest clearance between the magnet and steel
- under perpendicular force vector (90-degree angle)
- at temperature room level
Impact of factors on magnetic holding capacity in practice
- Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
- Steel thickness – too thin sheet does not close the flux, causing part of the power to be lost into the air.
- Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Surface condition – ground elements guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
- Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Safety rules for work with neodymium magnets
Keep away from computers
Very strong magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Stay away of at least 10 cm.
Handling rules
Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.
Dust is flammable
Drilling and cutting of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Warning for allergy sufferers
A percentage of the population have a hypersensitivity to Ni, which is the standard coating for NdFeB magnets. Extended handling can result in dermatitis. We suggest use safety gloves.
Medical interference
Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
Demagnetization risk
Monitor thermal conditions. Exposing the magnet to high heat will permanently weaken its properties and pulling force.
Do not give to children
Neodymium magnets are not toys. Swallowing multiple magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and necessitates urgent medical intervention.
Magnet fragility
NdFeB magnets are ceramic materials, which means they are prone to chipping. Impact of two magnets leads to them shattering into shards.
Hand protection
Large magnets can crush fingers in a fraction of a second. Never put your hand between two attracting surfaces.
GPS and phone interference
A powerful magnetic field disrupts the operation of magnetometers in smartphones and navigation systems. Do not bring magnets near a smartphone to prevent breaking the sensors.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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