KM HF - 22 kg - magnetic bracket
magnetic bracket
Catalog no 170257
GTIN/EAN: 5906301813699
Weight
593 g
Load capacity
22.00 kg / 215.75 N
29.52 ZŁ with VAT / pcs + price for transport
24.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - 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 |
Material specification
| 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 as well as disadvantages of rare earth magnets.
Strengths
- Their power is durable, and after approximately 10 years it drops only by ~1% (according to research),
- Neodymium magnets remain extremely resistant to demagnetization caused by external interference,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to look better,
- They feature high magnetic induction at the operating surface, making them more effective,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Considering the ability of free forming and customization to custom projects, magnetic components can be manufactured in a wide range of forms and dimensions, which expands the range of possible applications,
- Universal use in advanced technology sectors – they are commonly used in data components, drive modules, medical devices, also modern systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of making nuts in the magnet and complicated forms - preferred is casing - magnetic holder.
- Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these devices can complicate diagnosis medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Highest magnetic holding force – what it depends on?
- on a block made of mild steel, optimally conducting the magnetic flux
- possessing a massiveness of min. 10 mm to avoid saturation
- with an ground touching surface
- under conditions of no distance (surface-to-surface)
- during detachment in a direction vertical to the plane
- at ambient temperature room level
Determinants of lifting force in real conditions
- Gap (between the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, rust or debris).
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Plate thickness – insufficiently thick plate does not close the flux, causing part of the flux to be escaped into the air.
- Material composition – different alloys reacts the same. Alloy additives weaken the interaction with the magnet.
- Smoothness – ideal contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
- Temperature – temperature increase results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
Safety rules for work with NdFeB magnets
Data carriers
Very strong magnetic fields can destroy records on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.
Product not for children
NdFeB magnets are not suitable for play. Eating multiple magnets can lead to them connecting inside the digestive tract, which constitutes a critical condition and necessitates immediate surgery.
Physical harm
Big blocks can crush fingers in a fraction of a second. Never put your hand between two strong magnets.
Pacemakers
People with a ICD must maintain an large gap from magnets. The magnetism can interfere with the operation of the implant.
Fragile material
Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Handling rules
Use magnets with awareness. Their powerful strength can shock even professionals. Stay alert and respect their power.
Flammability
Machining of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Precision electronics
A powerful magnetic field interferes with the operation of magnetometers in phones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.
Demagnetization risk
Do not overheat. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, inquire about HT versions (H, SH, UH).
Skin irritation risks
Studies show that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands or opt for encased magnets.
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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