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AM ucho [M10] - magnetic accessories
magnetic accessories
Catalog no 080346
GTIN/EAN: 5906301812494
Weight
71.5 g
Load capacity
320.00 kg / 3138.13 N
7.38 ZŁ with VAT / pcs + price for transport
6.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power and appearance of a neodymium magnet can be calculated on our
magnetic mass calculator.
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Technical specification of the product - AM ucho [M10] - magnetic accessories
Specification / characteristics - AM ucho [M10] - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080346 |
| GTIN/EAN | 5906301812494 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 71.5 g |
| Load capacity ~ ? | 320.00 kg / 3138.13 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 |
See also proposals
![UMGGZ 43x6 [M6] GZ / N38 - rubber magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umg-43x6-m6-gz-miw.jpg "UMGGZ 43x6 [M6] GZ / N38 - rubber magnetic holder external thread")
Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- Their magnetic field is maintained, and after around 10 years it decreases only by ~1% (theoretically),
- They are resistant to demagnetization induced by presence of other magnetic fields,
- Thanks to the shimmering finish, the surface of Ni-Cu-Ni, gold, or silver gives an clean appearance,
- The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Possibility of detailed forming and adapting to precise applications,
- Wide application in innovative solutions – they serve a role in mass storage devices, brushless drives, medical devices, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in compact constructions
Limitations
- At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in creating threads and complicated shapes in magnets, we propose using casing - magnetic holder.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, tiny parts of these devices are able to complicate diagnosis medical when they are in the body.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Maximum magnetic pulling force – what it depends on?
- on a block made of mild steel, optimally conducting the magnetic flux
- whose transverse dimension reaches at least 10 mm
- with a plane cleaned and smooth
- under conditions of no distance (surface-to-surface)
- during pulling in a direction perpendicular to the mounting surface
- in temp. approx. 20°C
Determinants of practical lifting force of a magnet
- Distance – the presence of any layer (rust, dirt, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
- Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Temperature – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Warnings
Magnets are brittle
Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Do not give to children
NdFeB magnets are not suitable for play. Accidental ingestion of multiple magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and requires urgent medical intervention.
Heat sensitivity
Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Finger safety
Danger of trauma: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.
Fire warning
Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Handling guide
Exercise caution. Rare earth magnets attract from a distance and connect with huge force, often faster than you can move away.
Warning for heart patients
Life threat: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Protect data
Data protection: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).
Allergy Warning
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness appears, cease working with magnets and use protective gear.
Phone sensors
GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
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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