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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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Specifications along with structure of a neodymium magnet can be reviewed on our
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Technical parameters - 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 |
Elemental analysis
| 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 |
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Advantages as well as disadvantages of rare earth magnets.
Pros
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- They retain their magnetic properties even under close interference source,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to look better,
- Neodymium magnets ensure maximum magnetic induction on a small surface, which allows for strong attraction,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Thanks to flexibility in designing and the ability to customize to client solutions,
- Wide application in advanced technology sectors – they are utilized in data components, electric drive systems, diagnostic systems, also modern systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems
Cons
- To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of producing nuts in the magnet and complex shapes - preferred is cover - mounting mechanism.
- Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, small components of these devices can complicate diagnosis medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- on a base made of structural steel, perfectly concentrating the magnetic field
- with a thickness no less than 10 mm
- characterized by smoothness
- under conditions of gap-free contact (surface-to-surface)
- under perpendicular application of breakaway force (90-degree angle)
- in stable room temperature
Impact of factors on magnetic holding capacity in practice
- Clearance – the presence of any layer (paint, tape, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Steel thickness – too thin steel causes magnetic saturation, causing part of the flux to be lost to the other side.
- Steel grade – the best choice is pure iron steel. Stainless steels may have worse magnetic properties.
- Plate texture – ground elements guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
- Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate decreases the holding force.
Safe handling of NdFeB magnets
Respect the power
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.
Medical implants
Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Data carriers
Do not bring magnets near a purse, laptop, or screen. The magnetism can permanently damage these devices and wipe information from cards.
Choking Hazard
Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Keep out of reach of children and animals.
Bodily injuries
Big blocks can break fingers in a fraction of a second. Never place your hand betwixt two attracting surfaces.
Sensitization to coating
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness appears, cease working with magnets and use protective gear.
Shattering risk
Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.
Precision electronics
A strong magnetic field interferes with the operation of compasses in smartphones and GPS navigation. Do not bring magnets close to a device to prevent damaging the sensors.
Fire risk
Machining of neodymium magnets carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Demagnetization risk
Control the heat. Exposing the magnet to high heat will destroy its properties and strength.
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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