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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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Parameters as well as structure of neodymium magnets can be analyzed using our
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Physical properties - 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 Nd2Fe14B magnets.
Pros
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
- They are noted for resistance to demagnetization induced by presence of other magnetic fields,
- The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
- Magnets are characterized by exceptionally strong magnetic induction on the active area,
- 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 forming and the ability to adapt to complex applications,
- Versatile presence in modern technologies – they find application in HDD drives, drive modules, precision medical tools, also multitasking production systems.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 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 protecting against moisture
- Limited ability of making threads in the magnet and complicated forms - preferred is a housing - magnet mounting.
- Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products can be problematic in diagnostics medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Highest magnetic holding force – what affects it?
- with the application of a yoke made of special test steel, ensuring full magnetic saturation
- whose transverse dimension is min. 10 mm
- characterized by smoothness
- under conditions of gap-free contact (metal-to-metal)
- under axial force vector (90-degree angle)
- in neutral thermal conditions
Magnet lifting force in use – key factors
- Clearance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
- Pull-off angle – 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.
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Metal type – different alloys reacts the same. High carbon content weaken the attraction effect.
- Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (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 perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Precautions when working with NdFeB magnets
Fire risk
Dust produced during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Warning for heart patients
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Permanent damage
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.
Allergy Warning
A percentage of the population have a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact may cause a rash. We recommend wear safety gloves.
Keep away from computers
Avoid bringing magnets near a purse, laptop, or screen. The magnetic field can destroy these devices and erase data from cards.
Bodily injuries
Big blocks can crush fingers in a fraction of a second. Never place your hand between two strong magnets.
Compass and GPS
Be aware: rare earth magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your phone, tablet, and navigation systems.
Handling rules
Handle with care. Neodymium magnets attract from a distance and connect with huge force, often faster than you can react.
Magnet fragility
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.
Swallowing risk
Always store magnets away from children. Choking hazard is significant, and the effects of magnets clamping inside the body are very dangerous.
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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