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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
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Physical properties - 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 |
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 |
Other products
Advantages and disadvantages of rare earth magnets.
Benefits
- They retain attractive force for nearly ten years – the loss is just ~1% (according to analyses),
- They are noted for resistance to demagnetization induced by external magnetic fields,
- Thanks to the shiny finish, the surface of nickel, gold, or silver-plated gives an aesthetic appearance,
- They are known for high magnetic induction at the operating surface, making them more effective,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
- Considering the option of free shaping and adaptation to individualized needs, NdFeB magnets can be modeled in a variety of geometric configurations, which expands the range of possible applications,
- Key role in future technologies – they are used in mass storage devices, brushless drives, medical equipment, as well as modern systems.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Disadvantages
- At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets decrease their strength 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 durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of producing threads in the magnet and complex forms - recommended is casing - mounting mechanism.
- Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these magnets can complicate diagnosis medical when they are in the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what it depends on?
- using a sheet made of high-permeability steel, functioning as a circuit closing element
- possessing a thickness of min. 10 mm to avoid saturation
- with a plane cleaned and smooth
- under conditions of gap-free contact (metal-to-metal)
- under perpendicular force direction (90-degree angle)
- at standard ambient temperature
Key elements affecting lifting force
- Space between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick plate does not close the flux, causing part of the flux to be lost into the air.
- Chemical composition of the base – mild steel attracts best. Higher carbon content lower magnetic permeability and lifting capacity.
- Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet and the plate decreases the load capacity.
Safe handling of NdFeB magnets
Warning for allergy sufferers
A percentage of the population suffer from a sensitization to Ni, which is the common plating for NdFeB magnets. Prolonged contact can result in a rash. We suggest wear protective gloves.
Danger to the youngest
Absolutely keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are tragic.
Maximum temperature
Do not overheat. Neodymium magnets are susceptible to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Magnets are brittle
NdFeB magnets are ceramic materials, meaning they are fragile like glass. Collision of two magnets will cause them breaking into shards.
Cards and drives
Do not bring magnets near a wallet, laptop, or screen. The magnetism can permanently damage these devices and wipe information from cards.
Do not underestimate power
Before starting, check safety instructions. Sudden snapping can break the magnet or injure your hand. Think ahead.
Warning for heart patients
Patients with a ICD have to keep an safe separation from magnets. The magnetism can interfere with the operation of the life-saving device.
GPS Danger
A strong magnetic field disrupts the operation of compasses in smartphones and navigation systems. Keep magnets near a device to avoid damaging the sensors.
Finger safety
Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Flammability
Mechanical processing of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
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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