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
bulk discounts:
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Technical data - 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths and weaknesses of neodymium magnets.
Benefits
- They retain magnetic properties for around 10 years – the loss is just ~1% (in theory),
- Neodymium magnets remain remarkably resistant to loss of magnetic properties caused by external field sources,
- A magnet with a smooth nickel surface has better aesthetics,
- Magnets possess very high magnetic induction on the working surface,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- In view of the potential of flexible shaping and adaptation to custom projects, NdFeB magnets can be manufactured in a broad palette of shapes and sizes, which makes them more universal,
- Wide application in electronics industry – they are utilized in HDD drives, electromotive mechanisms, medical equipment, as well as complex engineering applications.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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 extremely resistant to heat
- They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing threads and complicated forms in magnets, we propose using casing - magnetic holder.
- Potential hazard to health – tiny shards of magnets are risky, if swallowed, which gains importance in the context of child safety. It is also worth noting that tiny parts of these devices are able to be problematic in diagnostics medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Lifting parameters
Magnetic strength at its maximum – what it depends on?
- with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
- with a thickness no less than 10 mm
- with a surface cleaned and smooth
- without any insulating layer between the magnet and steel
- during pulling in a direction vertical to the plane
- in temp. approx. 20°C
Magnet lifting force in use – key factors
- Air gap (between the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or debris).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Steel type – mild steel gives the best results. Alloy admixtures reduce magnetic properties and lifting capacity.
- Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
- Temperature – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.
Warnings
Heat sensitivity
Avoid heat. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).
Do not underestimate power
Use magnets with awareness. Their huge power can surprise even experienced users. Stay alert and respect their force.
Dust is flammable
Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Compass and GPS
GPS units and mobile phones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can ruin the sensors in your phone.
Material brittleness
Protect your eyes. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Wear goggles.
No play value
Product intended for adults. Small elements pose a choking risk, leading to severe trauma. Keep away from kids and pets.
Serious injuries
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Health Danger
For implant holders: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.
Nickel allergy
It is widely known that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, prevent direct skin contact and opt for versions in plastic housing.
Safe distance
Avoid bringing magnets near a purse, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.
Tabela kosztu i czasu dostawy
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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