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 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 |
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 |
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Strengths as well as weaknesses of neodymium magnets.
Pros
- They do not lose power, even during around 10 years – the drop in power is only ~1% (based on measurements),
- They are resistant to demagnetization induced by external field influence,
- By covering with a shiny layer of nickel, the element has an aesthetic look,
- Magnets are characterized by excellent magnetic induction on the outer layer,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
- Possibility of exact modeling and modifying to defined needs,
- Significant place in future technologies – they are commonly used in mass storage devices, motor assemblies, medical equipment, and technologically advanced constructions.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Disadvantages
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing nuts and complicated shapes in magnets, we propose using casing - magnetic mechanism.
- Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these devices can complicate diagnosis medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Magnetic strength at its maximum – what it depends on?
- using a base made of mild steel, functioning as a ideal flux conductor
- possessing a massiveness of min. 10 mm to ensure full flux closure
- characterized by smoothness
- under conditions of ideal adhesion (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- at temperature room level
Determinants of lifting force in real conditions
- Distance (betwixt the magnet and the plate), because even a very small distance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
- Load vector – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Steel type – mild steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate decreases the load capacity.
Warnings
Product not for children
Only for adults. Small elements pose a choking risk, causing intestinal necrosis. Keep out of reach of children and animals.
Phone sensors
Remember: rare earth magnets produce a field that confuses sensitive sensors. Keep a safe distance from your mobile, device, and GPS.
Magnets are brittle
Despite the nickel coating, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Dust is flammable
Mechanical processing of neodymium magnets carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Nickel coating and allergies
Studies show that the nickel plating (the usual finish) is a strong allergen. For allergy sufferers, avoid touching magnets with bare hands or select coated magnets.
Threat to electronics
Powerful magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Danger to pacemakers
Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Serious injuries
Mind your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!
Immense force
Handle magnets with awareness. Their huge power can surprise even experienced users. Plan your moves and do not underestimate their force.
Permanent damage
Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and pulling force.
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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