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neodymium magnets

We offer yellow color magnets Nd2Fe14B - our offer. All magnesy neodymowe in our store are available for immediate purchase (check the list). See the magnet pricing for more details check the magnet price list

Magnet for treasure hunters F200 GOLD

Where to buy powerful neodymium magnet? Holders with magnets in solid and airtight steel enclosure are perfect for use in difficult weather, including during snow and rain see more...

magnets with holders

Magnetic holders can be used to enhance manufacturing, underwater discoveries, or locating meteorites made of ore more...

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AM ucho [M12] - magnetic accessories

magnetic accessories

Catalog no 080347

GTIN: 5906301812500

5

Weight

101.5 g

Load capacity

480 kg / 4707.19 N

9.84 with VAT / pcs + price for transport

8.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
8.00 ZŁ
9.84 ZŁ
price from 100 pcs
7.60 ZŁ
9.35 ZŁ
price from 150 pcs
7.20 ZŁ
8.86 ZŁ

Do you have doubts?

Call us now +48 888 99 98 98 or get in touch by means of form through our site.
Force and shape of neodymium magnets can be reviewed with our online calculation tool.

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AM ucho [M12] - magnetic accessories

Specification/characteristics AM ucho [M12] - magnetic accessories
properties
values
Cat. no.
080347
GTIN
5906301812500
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Weight
101.5 g [±0,1 mm]
Load capacity ~ ?
480 kg / 4707.19 N
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material

properties
values
units

Physical properties of NdFeB

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

In this category, we offer a wide selection of complementary elements for magnetic holders. We offer, among others: open and closed hooks, eyelets, as well as steel plates (washers) and rubber anti-slip caps. These elements are necessary to fully utilize the potential of neodymium magnets.
Thanks to steel plates, you can create a magnetic point on wood, plastic, or wall. Installation involves gluing or screwing the washer to the substrate. This is an ideal solution for closing cabinets, hanging tools, or mounting detectors.
Our accessories are compatible with holders having standard metric threads. Information about the thread size can be found in the product specification. We offer accessories made of galvanized or stainless steel, resistant to corrosion.
The cap increases friction, preventing the magnet from sliding. Use them wherever metal could damage the surface. However, remember that rubber creates a distance, which slightly reduces the perpendicular pull force.
Yes, as a direct importer, we serve both retail and wholesale customers. For larger orders, we offer attractive discounts. We guarantee fast shipping from our warehouse in Poland.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from their consistent magnetism, neodymium magnets have these key benefits:

  • They do not lose their strength nearly ten years – the reduction of power is only ~1% (theoretically),
  • They protect against demagnetization induced by ambient magnetic influence remarkably well,
  • Because of the lustrous layer of silver, the component looks aesthetically refined,
  • They possess intense magnetic force measurable at the magnet’s surface,
  • These magnets tolerate elevated temperatures, often exceeding 230°C, when properly designed (in relation to profile),
  • The ability for custom shaping or adaptation to custom needs – neodymium magnets can be manufactured in many forms and dimensions, which extends the scope of their use cases,
  • Key role in cutting-edge sectors – they serve a purpose in HDDs, rotating machines, diagnostic apparatus and sophisticated instruments,
  • Compactness – despite their small size, they generate strong force, making them ideal for precision applications

Disadvantages of neodymium magnets:

  • They may fracture when subjected to a sudden impact. If the magnets are exposed to shocks, it is advisable to use in a metal holder. The steel housing, in the form of a holder, protects the magnet from breakage and additionally increases its overall strength,
  • Magnets lose magnetic efficiency when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible power drop (influenced by the magnet’s form). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
  • They rust in a humid environment – during outdoor use, we recommend using moisture-resistant magnets, such as those made of plastic,
  • The use of a protective casing or external holder is recommended, since machining multi-axis shapes in neodymium magnets is difficult,
  • Possible threat from tiny pieces may arise, if ingested accidentally, which is important in the protection of children. Additionally, tiny components from these products have the potential to complicate medical imaging if inside the body,
  • Due to expensive raw materials, their cost is relatively high,

Breakaway strength of the magnet in ideal conditionswhat affects it?

The given holding capacity of the magnet corresponds to the highest holding force, measured in the best circumstances, namely:

  • with mild steel, used as a magnetic flux conductor
  • having a thickness of no less than 10 millimeters
  • with a smooth surface
  • with no separation
  • with vertical force applied
  • under standard ambient temperature

What influences lifting capacity in practice

In practice, the holding capacity of a magnet is conditioned by the following aspects, arranged from the most important to the least relevant:

  • Air gap between the magnet and the plate, since even a very small distance (e.g. 0.5 mm) can cause a drop in lifting force of up to 50%.
  • Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
  • Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
  • Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
  • Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
  • Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.

* Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as 75%. In addition, even a slight gap {between} the magnet’s surface and the plate reduces the lifting capacity.

Handle Neodymium Magnets Carefully

Neodymium magnets can demagnetize at high temperatures.

Whilst Neodymium magnets can lose their magnetic properties at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

Neodymium magnets are the strongest, most remarkable magnets on earth, and the surprising force between them can surprise you at first.

Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional disruption to the magnets.

Neodymium magnetic are extremely fragile, they easily break as well as can become damaged.

Magnets made of neodymium are extremely fragile, and by joining them in an uncontrolled manner, they will crack. Neodymium magnets are made of metal and coated with a shiny nickel, but they are not as durable as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.

The magnet coating contains nickel, so be cautious if you have a nickel allergy.

Studies show a small percentage of people have allergies to certain metals, including nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Keep neodymium magnets away from TV, wallet, and computer HDD.

Neodymium magnets produce strong magnetic fields that can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also destroy videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

Avoid bringing neodymium magnets close to a phone or GPS.

Magnetic fields can interfere with compasses and magnetometers used in aviation and maritime navigation, as well as internal compasses of smartphones and GPS devices. There are neodymium magnets in every smartphone, for example, in the microphone and speakers.

Dust and powder from neodymium magnets are highly flammable.

Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.

  Do not give neodymium magnets to youngest children.

Neodymium magnets are not toys. Do not allow children to play with them. In the case of swallowing multiple magnets simultaneously, they can attract to each other through the intestinal walls. In the worst case scenario, this can lead to death.

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.

If you have a finger between or alternatively on the path of attracting magnets, there may be a severe cut or a fracture.

Be careful!

To illustrate why neodymium magnets are so dangerous, read the article - How very dangerous are very powerful neodymium magnets?.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98