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 - 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Strengths and weaknesses of Nd2Fe14B magnets.
Pros
- They have stable power, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
- They show high resistance to demagnetization induced by external field influence,
- By using a decorative coating of nickel, the element gains an nice look,
- The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Considering the option of precise shaping and customization to individualized needs, magnetic components can be produced in a wide range of geometric configurations, which makes them more universal,
- Significant place in modern technologies – they find application in computer drives, brushless drives, diagnostic systems, and industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of making threads in the magnet and complex forms - recommended is cover - magnetic holder.
- Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Maximum holding power of the magnet – what contributes to it?
- on a plate made of structural steel, effectively closing the magnetic flux
- with a thickness no less than 10 mm
- characterized by even structure
- with direct contact (no paint)
- under axial application of breakaway force (90-degree angle)
- in temp. approx. 20°C
Practical lifting capacity: influencing factors
- Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of maximum force).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material composition – not every steel attracts identically. Alloy additives worsen the attraction effect.
- Smoothness – full contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Safety rules for work with neodymium magnets
Machining danger
Machining of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Do not underestimate power
Handle magnets consciously. Their huge power can shock even professionals. Be vigilant and do not underestimate their power.
Electronic hazard
Avoid bringing magnets near a wallet, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.
This is not a toy
Adult use only. Small elements can be swallowed, leading to severe trauma. Store away from children and animals.
Eye protection
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets will cause them cracking into small pieces.
Maximum temperature
Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Nickel coating and allergies
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If redness occurs, immediately stop working with magnets and use protective gear.
ICD Warning
Individuals with a ICD have to maintain an absolute distance from magnets. The magnetic field can interfere with the operation of the life-saving device.
GPS Danger
A strong magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets near a device to prevent damaging the sensors.
Hand protection
Watch your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
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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