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neodymium magnets

We offer blue color magnets Nd2Fe14B - our proposal. Practically all "neodymium magnets" in our store are in stock for immediate delivery (check the list). See the magnet pricing for more details see the magnet price list

Magnets for fishing F400 GOLD

Where to purchase very strong neodymium magnet? Holders with magnets in airtight, solid steel casing are ideally suited for use in challenging climate conditions, including during rain and snow see

magnets with holders

Holders with magnets can be applied to improve production, underwater exploration, or finding meteorites from gold read...

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NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube

neocube

Catalog no 120229

GTIN: 5906301812685

5

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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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
5906301812685
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Weight
145 g [±0,1 mm]
Magnetization Direction
↑ axial
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

properties
values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
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 106
°C-1
Thermal expansion perpendicular (⊥) to orientation (M)
-(1-3) x 10-6
°C-1
Young's modulus
1.7 x 104
kg/mm²

Shopping tips

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. Safety is paramount - keep NeoCube away from toddlers. We recommend using the product by persons aware of the danger.
With intensive use, the coating of balls (especially colorful ones) may undergo natural wear. If you care about maximum aesthetic durability, choose the silver (nickel-plated) version. Despite possible abrasions, magnets still attract just as strongly.
You can buy more boxes to build increasingly larger and more complicated solids. Mixing sizes is difficult, but mixing colors gives great visual effects. With two sets (432 balls), you can build much more interesting figures than with one.
Start by stretching all balls into one long line, then fold them in layers. When you have a chain, you can fold it into strips of 6 balls, and then into a rectangle. Over time you will gain practice and arranging will become relaxing.

Strengths as well as weaknesses of NdFeB magnets.

Besides their durability, neodymium magnets are valued for these benefits:

  • They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
  • They maintain their magnetic properties even under close interference source,
  • By covering with a smooth layer of gold, the element has an aesthetic look,
  • Magnets have huge magnetic induction on the surface,
  • 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...
  • Possibility of precise creating as well as optimizing to specific needs,
  • Wide application in innovative solutions – they are commonly used in data components, drive modules, precision medical tools, and industrial machines.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Problematic aspects of neodymium magnets: tips and applications.

  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 extremely resistant to heat
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • Due to limitations in realizing nuts and complex shapes in magnets, we recommend using cover - magnetic mechanism.
  • Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • Due to complex production process, their price is higher than average,

Highest magnetic holding forcewhat affects it?

The load parameter shown concerns the limit force, measured under ideal test conditions, meaning:

  • on a block made of structural steel, optimally conducting the magnetic field
  • whose transverse dimension is min. 10 mm
  • with an ground touching surface
  • without the slightest insulating layer between the magnet and steel
  • under perpendicular force direction (90-degree angle)
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

Bear in mind that the magnet holding will differ depending on elements below, in order of importance:

  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Material composition – not every steel attracts identically. Alloy additives worsen the attraction effect.
  • Plate texture – ground elements guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
  • Temperature influence – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

* Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance {between} the magnet’s surface and the plate lowers the lifting capacity.

Safe handling of neodymium magnets

Cards and drives

Avoid bringing magnets near a wallet, laptop, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Powerful field

Before use, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Hand protection

Risk of injury: The pulling power is so immense that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Keep away from children

Only for adults. Small elements can be swallowed, causing severe trauma. Keep away from children and animals.

Fragile material

NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Impact of two magnets leads to them shattering into shards.

Precision electronics

A powerful magnetic field negatively affects the operation of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Flammability

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.

Avoid contact if allergic

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands or choose encased magnets.

Operating temperature

Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Health Danger

Patients with a ICD have to maintain an large gap from magnets. The magnetism can stop the operation of the life-saving device.

Security!

More info about risks in the article: Safety of working with magnets.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98