NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube
neocube
Catalog no 120229
GTIN/EAN: 5906301812685
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
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Technical data of the product - NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube
Specification / characteristics - NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube
| properties | values |
|---|---|
| Cat. no. | 120229 |
| GTIN/EAN | 5906301812685 |
| 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 |
Elemental analysis
| 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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Pros as well as cons of neodymium magnets.
Advantages
- They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
- Magnets perfectly defend themselves against demagnetization caused by ambient magnetic noise,
- In other words, due to the aesthetic surface of silver, the element is aesthetically pleasing,
- Neodymium magnets deliver maximum magnetic induction on a small surface, which ensures high operational effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to the option of free shaping and adaptation to unique needs, magnetic components can be manufactured in a wide range of geometric configurations, which amplifies use scope,
- Key role in electronics industry – they find application in HDD drives, electromotive mechanisms, advanced medical instruments, and industrial machines.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also raises their durability
- Neodymium magnets decrease their power 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 durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Limited possibility of producing threads in the magnet and complicated forms - recommended is cover - magnetic holder.
- Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small elements of these magnets 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
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- on a plate made of mild steel, optimally conducting the magnetic flux
- with a thickness no less than 10 mm
- with a plane free of scratches
- under conditions of gap-free contact (surface-to-surface)
- under axial force direction (90-degree angle)
- in stable room temperature
Impact of factors on magnetic holding capacity in practice
- Distance – existence of foreign body (rust, dirt, gap) acts as an insulator, which lowers capacity 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.
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
- Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
Safety rules for work with neodymium magnets
Crushing force
Mind your fingers. Two powerful magnets will snap together immediately with a force of massive weight, crushing everything in their path. Exercise extreme caution!
Beware of splinters
Beware of splinters. Magnets can explode upon violent connection, launching sharp fragments into the air. Wear goggles.
Powerful field
Handle with care. Rare earth magnets act from a long distance and connect with huge force, often faster than you can move away.
Implant safety
For implant holders: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.
Impact on smartphones
Navigation devices and mobile phones are extremely susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Magnetic media
Avoid bringing magnets near a wallet, laptop, or screen. The magnetism can permanently damage these devices and erase data from cards.
Allergy Warning
Some people experience a sensitization to nickel, which is the common plating for NdFeB magnets. Extended handling may cause an allergic reaction. We suggest use safety gloves.
Fire risk
Powder produced during machining of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
Maximum temperature
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.
This is not a toy
These products are not intended for children. Swallowing multiple magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and requires urgent medical intervention.
Tabela kosztu i czasu dostawy
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