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AM ucho [M12] - magnetic accessories
magnetic accessories
Catalog no 080347
GTIN/EAN: 5906301812500
Weight
101.5 g
Load capacity
480.00 kg / 4707.19 N
9.84 ZŁ with VAT / pcs + price for transport
8.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specifications AM ucho [M12] - magnetic accessories
Specification / characteristics - AM ucho [M12] - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080347 |
| GTIN/EAN | 5906301812500 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 101.5 g |
| Load capacity ~ ? | 480.00 kg / 4707.19 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% |
Sustainability
| 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 rare earth magnets.
Strengths
- Their magnetic field is maintained, and after around ten years it drops only by ~1% (according to research),
- They are noted for resistance to demagnetization induced by external field influence,
- By covering with a reflective layer of nickel, the element presents an elegant look,
- Magnetic induction on the surface of the magnet turns out to be extremely intense,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of exact shaping as well as adjusting to defined conditions,
- Key role in innovative solutions – they serve a role in mass storage devices, brushless drives, precision medical tools, and technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in small systems
Disadvantages
- At strong impacts they can crack, therefore we recommend 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 suffer a drop in force. Often, when the temperature exceeds 80°C, their power 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
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- Limited ability of creating nuts in the magnet and complicated forms - recommended is cover - mounting mechanism.
- Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these devices can disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Lifting parameters
Maximum magnetic pulling force – what contributes to it?
- on a base made of structural steel, perfectly concentrating the magnetic field
- with a cross-section no less than 10 mm
- characterized by even structure
- with direct contact (no paint)
- during detachment in a direction vertical to the plane
- in stable room temperature
Lifting capacity in real conditions – factors
- Gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, rust or dirt).
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Material type – ideal substrate is high-permeability steel. Stainless steels may attract less.
- Base smoothness – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
- Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.
Safety rules for work with NdFeB magnets
Crushing force
Protect your hands. Two large magnets will snap together immediately with a force of massive weight, crushing everything in their path. Be careful!
Heat warning
Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.
Medical interference
For implant holders: Powerful magnets disrupt medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.
Magnets are brittle
NdFeB magnets are ceramic materials, which means they are very brittle. Collision of two magnets will cause them breaking into shards.
Dust is flammable
Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Keep away from computers
Avoid bringing magnets near a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.
GPS and phone interference
A powerful magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.
Sensitization to coating
Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, refrain from direct skin contact and choose versions in plastic housing.
Immense force
Be careful. Neodymium magnets act from a long distance and connect with massive power, often quicker than you can react.
Swallowing risk
Only for adults. Small elements pose a choking risk, causing severe trauma. Store away from children and animals.
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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