NC NeoCube 5 mm kwadraty / N38 - neocube
neocube
Catalog no 120227
GTIN/EAN: 5906301812661
Weight
216.5 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
49.99 ZŁ with VAT / pcs + price for transport
40.64 ZŁ net + 23% VAT / pcs
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Product card - NC NeoCube 5 mm kwadraty / N38 - neocube
Specification / characteristics - NC NeoCube 5 mm kwadraty / N38 - neocube
| properties | values |
|---|---|
| Cat. no. | 120227 |
| GTIN/EAN | 5906301812661 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 216.5 g |
| Magnetization Direction | ↑ axial |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.2-12.6 | kGs |
| remenance Br [min. - max.] ? | 1220-1260 | mT |
| coercivity bHc ? | 10.8-11.5 | kOe |
| coercivity bHc ? | 860-915 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 36-38 | BH max MGOe |
| energy density [min. - max.] ? | 287-303 | BH max KJ/m |
| max. temperature ? | ≤ 80 | °C |
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% |
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 and weaknesses of neodymium magnets.
Pros
- They have stable power, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- They feature excellent resistance to weakening of magnetic properties when exposed to external fields,
- A magnet with a shiny gold surface looks better,
- Magnets are characterized by impressive magnetic induction on the surface,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to flexibility in shaping and the capacity to modify to client solutions,
- Wide application in modern technologies – they find application in data components, electric drive systems, medical devices, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices
Disadvantages
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their durability
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- Limited possibility of producing nuts in the magnet and complicated forms - preferred is casing - mounting mechanism.
- Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small components of these products can complicate diagnosis medical in case of swallowing.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Lifting parameters
Detachment force of the magnet in optimal conditions – what contributes to it?
- using a sheet made of high-permeability steel, functioning as a circuit closing element
- possessing a massiveness of minimum 10 mm to avoid saturation
- characterized by smoothness
- under conditions of no distance (metal-to-metal)
- during pulling in a direction vertical to the mounting surface
- in neutral thermal conditions
Lifting capacity in practice – influencing factors
- Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
- Plate thickness – too thin steel causes magnetic saturation, causing part of the power to be lost to the other side.
- Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
- Surface condition – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
- Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.
Safe handling of neodymium magnets
Metal Allergy
Studies show that the nickel plating (standard magnet coating) is a potent allergen. If you have an allergy, refrain from direct skin contact or select coated magnets.
Choking Hazard
Always store magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are life-threatening.
Eye protection
Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.
Bone fractures
Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying anything in their path. Exercise extreme caution!
Do not drill into magnets
Fire warning: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Demagnetization risk
Avoid heat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).
Impact on smartphones
GPS units and mobile phones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.
Electronic devices
Do not bring magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.
Powerful field
Exercise caution. Neodymium magnets act from a long distance and snap with massive power, often faster than you can react.
Warning for heart patients
Warning for patients: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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