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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Technical parameters - 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% |
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 as well as weaknesses of Nd2Fe14B magnets.
Strengths
- Their strength remains stable, and after around 10 years it decreases only by ~1% (theoretically),
- They feature excellent resistance to magnetic field loss due to opposing magnetic fields,
- The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- Neodymium magnets generate maximum magnetic induction on a small surface, which increases force concentration,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to the option of precise forming and adaptation to unique requirements, NdFeB magnets can be produced in a variety of geometric configurations, which makes them more universal,
- Versatile presence in advanced technology sectors – they serve a role in magnetic memories, drive modules, precision medical tools, also complex engineering applications.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Weaknesses
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- We recommend a housing - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated shapes.
- Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical after entering the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- using a plate made of low-carbon steel, serving as a magnetic yoke
- with a thickness minimum 10 mm
- characterized by smoothness
- without the slightest air gap between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- at temperature room level
What influences lifting capacity in practice
- Distance – existence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
- Base smoothness – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Thermal environment – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.
Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet and the plate decreases the holding force.
H&S for magnets
Combustion hazard
Machining of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Eye protection
Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
Precision electronics
GPS units and mobile phones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Operating temperature
Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Keep away from children
Always keep magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are tragic.
ICD Warning
Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.
Skin irritation risks
Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, refrain from touching magnets with bare hands or opt for encased magnets.
Powerful field
Use magnets with awareness. Their huge power can shock even experienced users. Be vigilant and do not underestimate their power.
Keep away from computers
Device Safety: Strong magnets can damage data carriers and sensitive devices (pacemakers, medical aids, mechanical watches).
Pinching danger
Pinching hazard: The attraction force is so immense that it can cause hematomas, crushing, and broken bones. Use thick 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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