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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
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Technical details - 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 |
Other offers
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Strengths and weaknesses of Nd2Fe14B magnets.
Strengths
- Their magnetic field is maintained, and after approximately 10 years it decreases only by ~1% (theoretically),
- They have excellent resistance to magnetism drop as a result of external fields,
- A magnet with a shiny gold surface is more attractive,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Thanks to the option of accurate forming and customization to unique requirements, magnetic components can be produced in a wide range of forms and dimensions, which makes them more universal,
- Universal use in future technologies – they are utilized in mass storage devices, brushless drives, medical devices, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in compact constructions
Limitations
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- Due to limitations in creating nuts and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
- Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these products are able to complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
- with a cross-section no less than 10 mm
- with an polished contact surface
- under conditions of no distance (metal-to-metal)
- under vertical force direction (90-degree angle)
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Clearance – the presence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
- Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material composition – not every steel attracts identically. High carbon content worsen the interaction with the magnet.
- Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
- Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was assessed with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet’s surface and the plate reduces the holding force.
H&S for magnets
Demagnetization risk
Control the heat. Heating the magnet above 80 degrees Celsius will ruin its properties and pulling force.
Beware of splinters
Neodymium magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them breaking into small pieces.
Adults only
Adult use only. Tiny parts can be swallowed, causing serious injuries. Keep away from kids and pets.
Pacemakers
Patients with a pacemaker must keep an safe separation from magnets. The magnetic field can stop the operation of the life-saving device.
Cards and drives
Device Safety: Neodymium magnets can damage payment cards and delicate electronics (heart implants, hearing aids, timepieces).
Nickel allergy
Certain individuals have a contact allergy to nickel, which is the common plating for NdFeB magnets. Extended handling may cause skin redness. We suggest wear protective gloves.
GPS Danger
An intense magnetic field disrupts the functioning of compasses in smartphones and GPS navigation. Do not bring magnets near a device to prevent damaging the sensors.
Fire risk
Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.
Serious injuries
Pinching hazard: The attraction force is so great that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Powerful field
Use magnets consciously. Their huge power can surprise even professionals. Be vigilant and do not underestimate their 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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