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NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube

neocube

Catalog no 120228

GTIN/EAN: 5906301812678

5.00

Weight

145 g

Magnetization Direction

↑ axial

Coating

[NiCuNi] Nickel

49.99 with VAT / pcs + price for transport

40.64 ZŁ net + 23% VAT / pcs

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Technical details - NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube

Specification / characteristics - NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube

properties
properties values
Cat. no. 120228
GTIN/EAN 5906301812678
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
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

Specification / characteristics NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube
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

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
Engineering data and GPSR
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%
Ecology and recycling (GPSR)
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 120228-2026
Magnet Unit Converter
Pulling force

Magnetic Field

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It is a magnetic puzzle allowing for building solids, chains, and jewelry. Playing develops spatial imagination and manual skills. It's an ideal gift for teenagers and adults looking for intellectual entertainment.
The product is dedicated to teenagers and adults, it must be absolutely kept away from children. Swallowing several balls can lead to dangerous joining of them in the intestines. We recommend using the product by persons aware of the danger.
Color abrasion at ball contacts is a normal process resulting from metal-on-metal friction. Black and gold versions are also very durable, but rainbow colors may wear off faster. Coating wear does not affect the magnetic force of the balls.
Yes, sets can be combined without limits, creating gigantic structures. If you have 5mm balls, buy the same ones so they fit perfectly together. With two sets (432 balls), you can build much more interesting figures than with one.
The best method to organize balls is to form them into a long chain. You will find many video tutorials on the internet on how to arrange basic shapes. Over time you will gain practice and arranging will become relaxing.

Strengths and weaknesses of neodymium magnets.

Benefits

Besides their durability, neodymium magnets are valued for these benefits:
  • They do not lose power, even after nearly 10 years – the decrease in strength is only ~1% (based on measurements),
  • They retain their magnetic properties even under close interference source,
  • The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to look better,
  • They feature high magnetic induction at the operating surface, which affects their 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...
  • Considering the potential of precise shaping and customization to custom projects, NdFeB magnets can be produced in a wide range of geometric configurations, which expands the range of possible applications,
  • Versatile presence in advanced technology sectors – they are utilized in hard drives, electric drive systems, medical devices, as well as technologically advanced constructions.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Cons of neodymium magnets and proposals for their use:
  • At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • 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.
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • We suggest casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
  • Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Highest magnetic holding forcewhat contributes to it?

The lifting capacity listed is a theoretical maximum value conducted under specific, ideal conditions:
  • using a sheet made of high-permeability steel, functioning as a magnetic yoke
  • with a thickness of at least 10 mm
  • characterized by smoothness
  • with zero gap (no paint)
  • under axial force direction (90-degree angle)
  • in neutral thermal conditions

Magnet lifting force in use – key factors

Holding efficiency is affected by working environment parameters, such as (from most important):
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
  • Surface quality – the more even the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Additionally, even a small distance between the magnet and the plate reduces the load capacity.

Precautions when working with NdFeB magnets
Danger to the youngest

Product intended for adults. Small elements pose a choking risk, causing serious injuries. Store away from kids and pets.

Bodily injuries

Protect your hands. Two large magnets will join instantly with a force of massive weight, destroying anything in their path. Be careful!

Metal Allergy

Studies show that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands or choose coated magnets.

Combustion hazard

Dust created during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Power loss in heat

Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Threat to electronics

Intense magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Keep a distance of at least 10 cm.

Keep away from electronics

Remember: rare earth magnets produce a field that disrupts sensitive sensors. Maintain a separation from your phone, device, and GPS.

Eye protection

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Immense force

Handle with care. Rare earth magnets attract from a distance and connect with huge force, often faster than you can react.

Warning for heart patients

Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Warning! Need more info? Read our article: Why are neodymium magnets dangerous?