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AM ucho [M8] - magnetic accessories
magnetic accessories
Catalog no 080268
GTIN/EAN: 5906301812470
Weight
53 g
Load capacity
240.00 kg / 2353.60 N
4.92 ZŁ with VAT / pcs + price for transport
4.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Weight and structure of a neodymium magnet can be reviewed on our
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Technical - AM ucho [M8] - magnetic accessories
Specification / characteristics - AM ucho [M8] - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080268 |
| GTIN/EAN | 5906301812470 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 53 g |
| Load capacity ~ ? | 240.00 kg / 2353.60 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% |
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 Nd2Fe14B magnets.
Strengths
- They retain attractive force for around ten years – the loss is just ~1% (according to analyses),
- They are extremely resistant to demagnetization induced by external magnetic fields,
- Thanks to the smooth finish, the coating of nickel, gold-plated, or silver-plated gives an modern appearance,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
- Possibility of precise creating as well as adapting to complex needs,
- Key role in advanced technology sectors – they serve a role in data components, drive modules, medical devices, also complex engineering applications.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's 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, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of creating nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
- Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these devices can disrupt the diagnostic process medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what it depends on?
- on a plate made of structural steel, optimally conducting the magnetic flux
- with a cross-section of at least 10 mm
- with a surface perfectly flat
- without the slightest air gap between the magnet and steel
- during detachment in a direction perpendicular to the mounting surface
- at temperature room level
Practical lifting capacity: influencing factors
- Distance – existence of foreign body (paint, dirt, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Steel grade – ideal substrate is pure iron steel. Stainless steels may have worse magnetic properties.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
- Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.
Warnings
Adults only
Always keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are fatal.
Flammability
Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Health Danger
Individuals with a pacemaker should keep an absolute distance from magnets. The magnetism can stop the functioning of the implant.
Magnetic interference
A strong magnetic field negatively affects the functioning of magnetometers in phones and navigation systems. Do not bring magnets close to a smartphone to prevent damaging the sensors.
Safe operation
Use magnets consciously. Their powerful strength can shock even professionals. Plan your moves and respect their power.
Magnetic media
Intense magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of at least 10 cm.
Finger safety
Risk of injury: The pulling power is so great that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.
Skin irritation risks
Certain individuals have a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact might lead to a rash. We recommend use protective gloves.
Fragile material
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.
Demagnetization risk
Avoid heat. Neodymium magnets are susceptible to temperature. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
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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