KM HF - 22 kg - magnetic bracket
magnetic bracket
Catalog no 170257
GTIN/EAN: 5906301813699
- Weight
- 593 g
29.52 zł with VAT / pcs + price for transport
24.00 zł net + 23% VAT / pcs
bulk discounts:
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Parameters as well as shape of neodymium magnets can be verified using our
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Orders placed before 14:00 will be shipped the same business day.
Technical of the product - KM HF - 22 kg - magnetic bracket
Specification / characteristics - KM HF - 22 kg - magnetic bracket
| properties | values |
|---|---|
| Cat. no. | 170257 |
| GTIN/EAN | 5906301813699 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 593 g |
| Load capacity ~ ? | 22.00 kg / 215.75 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 |
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 as well as cons of neodymium magnets.
Advantages
- They do not lose strength, even after approximately ten years – the drop in strength is only ~1% (according to tests),
- Magnets very well defend themselves against demagnetization caused by ambient magnetic noise,
- Thanks to the elegant finish, the layer of nickel, gold-plated, or silver gives an elegant appearance,
- Magnetic induction on the top side of the magnet remains impressive,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Considering the possibility of flexible molding and adaptation to specialized solutions, magnetic components can be modeled in a broad palette of shapes and sizes, which increases their versatility,
- Significant place in high-tech industry – they are commonly used in mass storage devices, brushless drives, precision medical tools, also multitasking production systems.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Cons
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- Due to limitations in creating threads and complex shapes in magnets, we recommend using cover - magnetic mount.
- Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum lifting capacity of the magnet – what contributes to it?
- on a base made of mild steel, effectively closing the magnetic field
- whose thickness is min. 10 mm
- with a surface cleaned and smooth
- with direct contact (no coatings)
- during detachment in a direction perpendicular to the plane
- at ambient temperature room level
What influences lifting capacity in practice
- Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Metal type – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
- Smoothness – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal environment – temperature increase results in weakening of induction. Check the thermal limit for a given model.
Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate lowers the holding force.
Precautions when working with NdFeB magnets
Keep away from children
NdFeB magnets are not toys. Accidental ingestion of a few magnets can lead to them attracting across intestines, which poses a critical condition and requires urgent medical intervention.
Phone sensors
An intense magnetic field disrupts the functioning of compasses in phones and navigation systems. Do not bring magnets near a smartphone to avoid breaking the sensors.
Shattering risk
Neodymium magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets will cause them breaking into small pieces.
Medical implants
Health Alert: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Protect data
Avoid bringing magnets near a purse, laptop, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.
Permanent damage
Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.
Crushing force
Danger of trauma: The attraction force is so great that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.
Dust explosion hazard
Dust created during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.
Respect the power
Handle magnets with awareness. Their powerful strength can shock even experienced users. Plan your moves and respect their power.
Warning for allergy sufferers
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If skin irritation appears, immediately stop working with magnets and wear gloves.
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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