![Magnetic accessories AM ucho małe [M8]](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Magnetic accessories AM ucho małe [M8]")
![AM ucho małe [M8] - magnetic accessories](https://cdn3.dhit.pl/graphics/products/am-ucho-małe-m8-zud.jpg)
AM ucho małe [M8] - magnetic accessories
magnetic accessories
Catalog no 080345
GTIN/EAN: 5906301812487
Weight
27 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
bulk discounts:
Need more?
Pick up the phone and ask
+48 888 99 98 98
or let us know by means of
inquiry form
the contact section.
Strength and form of a neodymium magnet can be estimated on our
force calculator.
Same-day shipping for orders placed before 14:00.
Technical specification - AM ucho małe [M8] - magnetic accessories
Specification / characteristics - AM ucho małe [M8] - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080345 |
| GTIN/EAN | 5906301812487 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 27 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 |
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also deals
![UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread](https://cdn3.dhit.pl/graphics/products/um32x18x8-m6-gw--hec.jpg "UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread")
![SM 32x225 [2xM8] / N52 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x225-2xm8-zix.jpg "SM 32x225 [2xM8] / N52 - magnetic separator")
Advantages as well as disadvantages of neodymium magnets.
Pros
- They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
- They have excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
- By using a smooth layer of gold, the element has an elegant look,
- Magnetic induction on the top side of the magnet remains strong,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to versatility in constructing and the capacity to adapt to individual projects,
- Universal use in future technologies – they are utilized in HDD drives, electromotive mechanisms, medical equipment, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which enables their usage in miniature devices
Cons
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- 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 stability even at temperatures 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 secure oxidation and corrosion.
- Limited ability of producing threads in the magnet and complicated forms - preferred is cover - magnetic holder.
- Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small components of these products are able to be problematic in diagnostics medical in case of swallowing.
- With budget limitations the cost of neodymium magnets can be a barrier,
Lifting parameters
Maximum lifting capacity of the magnet – what contributes to it?
- on a plate made of structural steel, perfectly concentrating the magnetic field
- possessing a thickness of min. 10 mm to avoid saturation
- characterized by even structure
- with total lack of distance (no paint)
- during pulling in a direction perpendicular to the plane
- at conditions approx. 20°C
What influences lifting capacity in practice
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Direction of force – highest force is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
- Metal type – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
- Surface finish – full contact is obtained only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Safety rules for work with NdFeB magnets
Shattering risk
Neodymium magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets will cause them cracking into shards.
Metal Allergy
A percentage of the population experience a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Prolonged contact might lead to a rash. It is best to wear safety gloves.
Heat sensitivity
Monitor thermal conditions. Heating the magnet to high heat will ruin its properties and pulling force.
Medical implants
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
Do not underestimate power
Handle magnets consciously. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their force.
Swallowing risk
Absolutely keep magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are fatal.
Flammability
Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Magnetic interference
GPS units and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Cards and drives
Do not bring magnets close to a purse, computer, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.
Crushing risk
Pinching hazard: The attraction force is so immense that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.
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
Rate the product
Your rating