NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube
neocube
Catalog no 120228
GTIN/EAN: 5906301812678
Weight
145 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
49.99 ZŁ with VAT / pcs + price for transport
40.64 ZŁ net + 23% VAT / pcs
bulk discounts:
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NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube
Specification / characteristics NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube
| properties | values |
|---|---|
| Cat. no. | 120228 |
| GTIN/EAN | 5906301812678 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 145 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 |
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 |
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Advantages and disadvantages of neodymium magnets.
Pros
- They retain full power for around ten years – the loss is just ~1% (in theory),
- They maintain their magnetic properties even under external field action,
- The use of an refined finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- In view of the option of accurate molding and customization to individualized needs, NdFeB magnets can be created in a variety of forms and dimensions, which expands the range of possible applications,
- Significant place in advanced technology sectors – they are utilized in data components, motor assemblies, precision medical tools, as well as multitasking production systems.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Disadvantages
- To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We suggest cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex forms.
- Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Additionally, small elements of these devices can disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Detachment force of the magnet in optimal conditions – what contributes to it?
- using a base made of high-permeability steel, functioning as a circuit closing element
- possessing a massiveness of minimum 10 mm to avoid saturation
- with a plane perfectly flat
- without the slightest air gap between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at temperature room level
Lifting capacity in practice – influencing factors
- Gap between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – too thin plate causes magnetic saturation, causing part of the flux to be escaped into the air.
- Metal type – not every steel reacts the same. Alloy additives worsen the attraction effect.
- Surface structure – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate decreases the load capacity.
Data carriers
Very strong magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.
Skin irritation risks
It is widely known that nickel (the usual finish) is a potent allergen. If you have an allergy, refrain from direct skin contact or opt for versions in plastic housing.
Crushing risk
Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
GPS Danger
GPS units and mobile phones are highly susceptible to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Do not underestimate power
Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
Demagnetization risk
Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Health Danger
Warning for patients: Strong magnetic fields disrupt medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.
Adults only
These products are not intended for children. Swallowing a few magnets can lead to them attracting across intestines, which poses a critical condition and necessitates urgent medical intervention.
Eye protection
Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Clashing of two magnets leads to them shattering into shards.
Fire risk
Machining of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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14.99 ZŁ
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12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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