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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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Strength along with form of a neodymium magnet can be checked on our
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Technical specification - 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 |
Chemical composition
| 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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Advantages as well as disadvantages of neodymium magnets.
Benefits
- They retain full power for around ten years – the loss is just ~1% (based on simulations),
- Neodymium magnets remain exceptionally resistant to loss of magnetic properties caused by external interference,
- A magnet with a metallic nickel surface has better aesthetics,
- Neodymium magnets generate maximum magnetic induction on a their surface, which increases force concentration,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Considering the ability of flexible shaping and adaptation to specialized requirements, magnetic components can be created in a variety of shapes and sizes, which amplifies use scope,
- Universal use in modern industrial fields – they are utilized in hard drives, drive modules, precision medical tools, also complex engineering applications.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Limitations
- At strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and 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 power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated forms.
- Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these products are able to disrupt the diagnostic process medical after entering the body.
- Due to expensive raw materials, their price exceeds standard values,
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- on a plate made of structural steel, optimally conducting the magnetic field
- whose thickness is min. 10 mm
- with an ideally smooth touching surface
- without the slightest clearance between the magnet and steel
- under perpendicular force vector (90-degree angle)
- at temperature approx. 20 degrees Celsius
Practical aspects of lifting capacity – factors
- Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Steel grade – the best choice is pure iron steel. Cast iron may attract less.
- Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet and the plate reduces the load capacity.
H&S for magnets
Do not overheat magnets
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.
Respect the power
Be careful. Neodymium magnets act from a distance and connect with massive power, often quicker than you can move away.
Nickel coating and allergies
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness occurs, cease handling magnets and wear gloves.
ICD Warning
Patients with a heart stimulator have to keep an safe separation from magnets. The magnetic field can stop the functioning of the implant.
Crushing risk
Mind your fingers. Two powerful magnets will snap together immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Choking Hazard
Always store magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are tragic.
Shattering risk
Neodymium magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets leads to them shattering into small pieces.
Impact on smartphones
Note: rare earth magnets produce a field that disrupts precision electronics. Maintain a separation from your mobile, device, and GPS.
Flammability
Dust produced during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Cards and drives
Powerful magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.
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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