KM HF - 11,3 kg - magnetic bracket
magnetic bracket
Catalog no 170256
GTIN/EAN: 5906301813682
Weight
304 g
Load capacity
11.30 kg / 110.82 N
24.60 ZŁ with VAT / pcs + price for transport
20.00 ZŁ net + 23% VAT / pcs
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Technical - KM HF - 11,3 kg - magnetic bracket
Specification / characteristics - KM HF - 11,3 kg - magnetic bracket
| properties | values |
|---|---|
| Cat. no. | 170256 |
| GTIN/EAN | 5906301813682 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 304 g |
| Load capacity ~ ? | 11.30 kg / 110.82 N |
| 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 |
Chemical composition
| 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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Advantages and disadvantages of neodymium magnets.
Pros
- They have stable power, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- They are noted for resistance to demagnetization induced by external field influence,
- Thanks to the glossy finish, the coating of nickel, gold-plated, or silver-plated gives an clean appearance,
- Neodymium magnets achieve maximum magnetic induction on a small area, which increases force concentration,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- In view of the possibility of free molding and adaptation to unique needs, neodymium magnets can be created in a variety of shapes and sizes, which amplifies use scope,
- Significant place in advanced technology sectors – they are commonly used in data components, electromotive mechanisms, advanced medical instruments, and modern systems.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Weaknesses
- At very strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Due to limitations in realizing nuts and complicated shapes in magnets, we recommend using a housing - magnetic mount.
- Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
- Due to neodymium price, their price exceeds standard values,
Lifting parameters
Detachment force of the magnet in optimal conditions – what contributes to it?
- with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
- with a thickness minimum 10 mm
- with an ideally smooth touching surface
- under conditions of no distance (metal-to-metal)
- during pulling in a direction perpendicular to the plane
- in neutral thermal conditions
Lifting capacity in real conditions – factors
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Material composition – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
- Base smoothness – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under shearing force the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Precautions when working with neodymium magnets
Crushing force
Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Risk of cracking
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.
Combustion hazard
Fire hazard: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.
Implant safety
Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Do not give to children
Neodymium magnets are not suitable for play. Eating multiple magnets may result in them attracting across intestines, which poses a critical condition and requires urgent medical intervention.
Avoid contact if allergic
Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, cease working with magnets and wear gloves.
Demagnetization risk
Watch the temperature. Exposing the magnet to high heat will permanently weaken its properties and strength.
Data carriers
Device Safety: Neodymium magnets can damage payment cards and delicate electronics (heart implants, medical aids, mechanical watches).
Compass and GPS
Be aware: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your mobile, tablet, and GPS.
Safe operation
Handle with care. Neodymium magnets act from a long distance and connect with massive power, often quicker than you can move away.
Tabela kosztu i czasu dostawy
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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