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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Detailed specification - 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 |
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 and cons of neodymium magnets.
Pros
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- Neodymium magnets are characterized by extremely resistant to demagnetization caused by external field sources,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Thanks to the option of flexible shaping and adaptation to custom requirements, neodymium magnets can be modeled in a wide range of forms and dimensions, which amplifies use scope,
- Key role in innovative solutions – they serve a role in data components, motor assemblies, medical devices, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in miniature devices
Cons
- At very strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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
- They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited ability of creating nuts in the magnet and complex shapes - recommended is casing - mounting mechanism.
- Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these devices can disrupt the diagnostic process medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Lifting parameters
Best holding force of the magnet in ideal parameters – what affects it?
- on a block made of mild steel, perfectly concentrating the magnetic flux
- whose transverse dimension reaches at least 10 mm
- with a surface perfectly flat
- without the slightest insulating layer between the magnet and steel
- during detachment in a direction vertical to the plane
- in stable room temperature
Practical lifting capacity: influencing factors
- Clearance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
- Angle of force application – maximum parameter is available only during pulling at a 90° angle. The shear force of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – insufficiently thick steel does not close the flux, causing part of the power to be escaped into the air.
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels reduce magnetic permeability and lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity was determined by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate reduces the holding force.
Precautions when working with NdFeB magnets
Flammability
Dust generated during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
Permanent damage
Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
Precision electronics
Remember: neodymium magnets generate a field that confuses precision electronics. Keep a separation from your phone, tablet, and GPS.
Skin irritation risks
Studies show that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, prevent touching magnets with bare hands and select coated magnets.
Eye protection
Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Medical implants
Life threat: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Threat to electronics
Equipment safety: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, medical aids, timepieces).
Choking Hazard
Only for adults. Small elements pose a choking risk, leading to intestinal necrosis. Store out of reach of children and animals.
Powerful field
Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Bone fractures
Protect your hands. Two large magnets will snap together immediately with a force of massive weight, crushing everything in their path. Be careful!
Tabela kosztu i czasu dostawy
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