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
bulk discounts:
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Specifications and appearance of neodymium magnets can be tested on our
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Physical properties - 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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Pros and cons of Nd2Fe14B magnets.
Strengths
- They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
- They have excellent resistance to magnetic field loss when exposed to external magnetic sources,
- Thanks to the elegant finish, the layer of nickel, gold-plated, or silver gives an elegant appearance,
- Neodymium magnets ensure maximum magnetic induction on a small surface, which increases force concentration,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Possibility of precise creating and optimizing to specific requirements,
- Wide application in electronics industry – they serve a role in HDD drives, electric drive systems, medical equipment, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in small systems
Disadvantages
- At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and 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
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- Limited possibility of creating threads in the magnet and complicated shapes - preferred is cover - magnet mounting.
- Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical when they are in the body.
- With budget limitations the cost of neodymium magnets can be a barrier,
Pull force analysis
Maximum lifting capacity of the magnet – what contributes to it?
- on a plate made of structural steel, perfectly concentrating the magnetic flux
- whose transverse dimension equals approx. 10 mm
- with a plane cleaned and smooth
- with zero gap (no impurities)
- under vertical force direction (90-degree angle)
- at temperature approx. 20 degrees Celsius
Lifting capacity in practice – influencing factors
- Clearance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Base massiveness – too thin plate does not close the flux, causing part of the flux to be wasted into the air.
- Metal type – not every steel attracts identically. High carbon content weaken the attraction effect.
- Base smoothness – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Heat – NdFeB sinters 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 conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, however under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Safe handling of NdFeB magnets
Heat warning
Do not overheat. NdFeB magnets are susceptible to temperature. If you need operation above 80°C, ask us about special high-temperature series (H, SH, UH).
Bone fractures
Big blocks can crush fingers in a fraction of a second. Under no circumstances place your hand between two attracting surfaces.
Implant safety
Patients with a heart stimulator should maintain an large gap from magnets. The magnetism can interfere with the functioning of the implant.
Do not drill into magnets
Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Allergic reactions
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and use protective gear.
Eye protection
Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Compass and GPS
Be aware: rare earth magnets generate a field that disrupts precision electronics. Keep a safe distance from your mobile, tablet, and GPS.
Handling guide
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.
Electronic hazard
Powerful magnetic fields can corrupt files on credit cards, HDDs, and other magnetic media. Stay away of at least 10 cm.
Product not for children
Adult use only. Small elements can be swallowed, causing serious injuries. Keep out of reach of kids and pets.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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