NC kulka fi 2 cale / N52 - neocube
neocube
Catalog no 120453
GTIN/EAN: 5906301812692
Weight
1098 g
Magnetization Direction
↑ axial
Coating
[Gold] Gold
1200.00 ZŁ with VAT / pcs + price for transport
975.61 ZŁ net + 23% VAT / pcs
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Product card - NC kulka fi 2 cale / N52 - neocube
Specification / characteristics - NC kulka fi 2 cale / N52 - neocube
| properties | values |
|---|---|
| Cat. no. | 120453 |
| GTIN/EAN | 5906301812692 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 1098 g |
| Magnetization Direction | ↑ axial |
| Coating | [Gold] Gold |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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% |
Sustainability
| 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 Nd2Fe14B magnets.
Pros
- They do not lose magnetism, even over approximately ten years – the drop in strength is only ~1% (based on measurements),
- Neodymium magnets are distinguished by extremely resistant to demagnetization caused by external field sources,
- By covering with a smooth layer of nickel, the element acquires an professional look,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of precise shaping and optimizing to atypical conditions,
- Fundamental importance in advanced technology sectors – they find application in data components, brushless drives, advanced medical instruments, also other advanced devices.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Disadvantages
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We suggest a housing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
- Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small elements of these products can be problematic in diagnostics medical when they are in the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- with the use of a sheet made of special test steel, guaranteeing maximum field concentration
- whose thickness reaches at least 10 mm
- with a plane cleaned and smooth
- without the slightest clearance between the magnet and steel
- under axial force direction (90-degree angle)
- at ambient temperature room level
Practical aspects of lifting capacity – factors
- Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Steel grade – ideal substrate is high-permeability steel. Hardened steels may generate lower lifting capacity.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
- Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity was determined by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.
Safety rules for work with NdFeB magnets
Do not underestimate power
Exercise caution. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can move away.
Implant safety
Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or request help to work with the magnets.
Heat warning
Do not overheat. NdFeB magnets are susceptible to heat. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).
Crushing risk
Large magnets can crush fingers instantly. Do not put your hand betwixt two strong magnets.
Danger to the youngest
These products are not suitable for play. Accidental ingestion of several magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and requires urgent medical intervention.
Electronic hazard
Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can destroy these devices and wipe information from cards.
GPS Danger
A powerful magnetic field interferes with the operation of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.
Allergic reactions
Some people have a contact allergy to nickel, which is the common plating for neodymium magnets. Frequent touching may cause dermatitis. It is best to use protective gloves.
Dust explosion hazard
Dust created during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.
Shattering risk
Neodymium magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets will cause them breaking into shards.
