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AM szekla [M10] - magnetic accessories
magnetic accessories
Catalog no 080267
GTIN/EAN: 5906301812463
Weight
118 g
Load capacity
320.00 kg / 3138.13 N
4.92 ZŁ with VAT / pcs + price for transport
4.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Force and form of a magnet can be tested using our
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Detailed specification - AM szekla [M10] - magnetic accessories
Specification / characteristics - AM szekla [M10] - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080267 |
| GTIN/EAN | 5906301812463 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 118 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 |
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% |
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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Strengths as well as weaknesses of neodymium magnets.
Pros
- Their power remains stable, and after around ten years it decreases only by ~1% (according to research),
- Neodymium magnets are characterized by remarkably resistant to demagnetization caused by external interference,
- In other words, due to the smooth layer of silver, the element gains a professional look,
- The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
- Possibility of accurate shaping as well as adapting to complex applications,
- Versatile presence in high-tech industry – they are used in data components, brushless drives, medical equipment, also complex engineering applications.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Weaknesses
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as 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 rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of producing threads in the magnet and complicated shapes - recommended is a housing - magnet mounting.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these products are able to be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Magnetic strength at its maximum – what it depends on?
- with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
- whose transverse dimension is min. 10 mm
- with a surface cleaned and smooth
- without the slightest clearance between the magnet and steel
- under perpendicular application of breakaway force (90-degree angle)
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Distance (betwixt the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Pull-off angle – remember 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.
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Steel type – mild steel attracts best. Alloy steels decrease magnetic permeability and holding force.
- Surface finish – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate reduces the holding force.
Precautions when working with neodymium magnets
Magnet fragility
Beware of splinters. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.
Warning for allergy sufferers
It is widely known that nickel (standard magnet coating) is a potent allergen. If your skin reacts to metals, avoid direct skin contact and opt for versions in plastic housing.
Fire warning
Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
Implant safety
Individuals with a ICD must maintain an large gap from magnets. The magnetism can disrupt the functioning of the implant.
Phone sensors
GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Safe operation
Before use, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Maximum temperature
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
No play value
Absolutely store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are tragic.
Data carriers
Intense magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Maintain a gap of at least 10 cm.
Bodily injuries
Danger of trauma: The attraction force is so great that it can cause blood blisters, pinching, and even bone fractures. 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
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