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
How we measure these parameters — certificates and measurements
40.64 zł net / pcs
49.99 zł with VAT (23% VAT) / pcs
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Need more?Frequently asked questions
Are these magnets safe for children?
What happens if a magnet is dropped on a hard floor?
Can magnets damage electronic equipment?
Guides from the knowledge base
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Specifications and structure of a neodymium magnet can be estimated using our
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Physical properties - 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 | 310 | °C |
| Curie Temperature TF | 590 | °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% |
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 as well as disadvantages of Nd2Fe14B magnets.
Pros
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- Magnets perfectly protect themselves against demagnetization caused by foreign field sources,
- Thanks to the shimmering finish, the plating of nickel, gold-plated, or silver gives an aesthetic appearance,
- Magnets exhibit exceptionally strong magnetic induction on the active area,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Possibility of custom creating as well as adjusting to precise needs,
- Key role in advanced technology sectors – they are used in computer drives, electric motors, advanced medical instruments, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in compact constructions
Cons
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
- Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We suggest casing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of 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, serving as a ideal flux conductor
- possessing a thickness of at least 10 mm to avoid saturation
- with an polished contact surface
- under conditions of no distance (surface-to-surface)
- under axial application of breakaway force (90-degree angle)
- in temp. approx. 20°C
What influences lifting capacity in practice
- Clearance – existence of any layer (paint, dirt, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
- Base smoothness – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as 75%. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.
Warnings
Compass and GPS
An intense magnetic field interferes with the functioning of magnetometers in phones and GPS navigation. Maintain magnets near a device to prevent breaking the sensors.
Bone fractures
Pinching hazard: The attraction force is so immense that it can cause hematomas, pinching, and broken bones. Use thick gloves.
Mechanical processing
Machining of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Life threat
For implant holders: Powerful magnets disrupt electronics. Keep at least 30 cm distance or request help to work with the magnets.
Magnets are brittle
Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. We recommend safety glasses.
Protect data
Do not bring magnets near a wallet, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.
Sensitization to coating
Allergy Notice: The Ni-Cu-Ni coating contains nickel. If redness happens, immediately stop handling magnets and wear gloves.
Safe operation
Be careful. Neodymium magnets attract from a distance and connect with huge force, often faster than you can move away.
Heat sensitivity
Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
Do not give to children
Neodymium magnets are not intended for children. Accidental ingestion of a few magnets may result in them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.
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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