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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Parameters along with structure of a neodymium magnet can be estimated using our
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Technical of the product - 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% |
Environmental data
| 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.
Pros
- They retain magnetic properties for almost 10 years – the loss is just ~1% (based on simulations),
- Neodymium magnets are characterized by exceptionally resistant to demagnetization caused by external magnetic fields,
- A magnet with a smooth nickel surface looks better,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Thanks to versatility in forming and the ability to adapt to complex applications,
- Huge importance in high-tech industry – they are utilized in computer drives, electric motors, diagnostic systems, as well as industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in compact constructions
Weaknesses
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
- Neodymium magnets lose force 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 usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- We recommend cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complex shapes.
- Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these devices can be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets is a challenge,
Holding force characteristics
Magnetic strength at its maximum – what it depends on?
- with the contact of a sheet made of low-carbon steel, ensuring maximum field concentration
- with a cross-section no less than 10 mm
- with a surface perfectly flat
- without any air gap between the magnet and steel
- during pulling in a direction vertical to the plane
- at standard ambient temperature
Magnet lifting force in use – key factors
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Material composition – different alloys attracts identically. Alloy additives worsen the interaction with the magnet.
- Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Temperature – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the lifting capacity.
Safety rules for work with NdFeB magnets
Warning for allergy sufferers
Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation happens, cease working with magnets and use protective gear.
Do not overheat magnets
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.
Protect data
Equipment safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).
Handling guide
Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their power.
Do not give to children
These products are not intended for children. Eating multiple magnets may result in them attracting across intestines, which poses a direct threat to life and necessitates immediate surgery.
Life threat
People with a heart stimulator must keep an safe separation from magnets. The magnetism can interfere with the functioning of the life-saving device.
Fire warning
Combustion risk: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
Fragile material
Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.
Bodily injuries
Pinching hazard: The pulling power is so great that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.
Magnetic interference
Note: rare earth magnets generate a field that disrupts sensitive sensors. Maintain a safe distance from your mobile, device, and GPS.
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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