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neodymium magnets

We provide yellow color magnets Nd2Fe14B - our offer. All "magnets" on our website are in stock for immediate delivery (check the list). See the magnet price list for more details see the magnet price list

Magnet for treasure hunters F300 GOLD

Where to purchase strong neodymium magnet? Magnet holders in airtight and durable steel casing are excellent for use in difficult weather conditions, including during snow and rain more...

magnets with holders

Magnetic holders can be applied to enhance production processes, underwater exploration, or finding meteorites made of metal read...

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UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 - search holder

search holder

catalog number 210433

GTIN: 5906301814085

5.0

diameter Ø

75 mm [±0,1 mm]

height

25 mm [±0,1 mm]

capacity ~

310.00 kg / 3040.06 N

max. temperature

≤ 80 °C

180.00 gross price (including VAT) / pcs +

146.34 ZŁ net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
146.34 ZŁ
180.00 ZŁ
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Call us tel: +48 888 99 98 98 or write via form on our website. You can check the lifting capacity and the appearance of magnet in our power calculator magnetic calculator

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Specification: search holder 75x25 [M10x3] GW F200 GOLD Lina / N42

Characteristics: search holder 75x25 [M10x3] GW F200 GOLD Lina / N42
Properties
Values
catalog number
210433
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
85059029
diameter Ø
75 mm [±0,1 mm]
height
25 mm [±0,1 mm]
capacity ~ ?
310.00 kg / 3040.06 N
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
weight
900.00 g
execution tolerance
± 0.1 mm
seria
GOLD
typ uchwytu
dwustronny
rozmiar ucha
3x ucho M10 / 1x szekla M10
ilość magnesów
2 szt.
rodzaj materiału
stal rdzewna
strumień magnetyczny
~ 8000 Gs
długość liny
~ 25 metrów / fi 8mm
udźwig liny
~ 1600 kg
rękawiczki
para

Magnetic properties of the material N42

material characteristics N42
Properties
Values
units
remenance Br [Min. - Max.] ?
12.9-13.2
kGs
remenance Br [Min. - Max.] ?
1290-1320
T
coercivity bHc ?
10.8-12.0
kOe
coercivity bHc ?
860-955
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.]
40-42
BH max MGOe
energy density [Min. - Max.]
318-334
BH max KJ/m
max. temperature
≤ 80
°C

Physical properties of sintered neodymium magnets Nd2Fe14B

Physical properties of sintered neodymium magnets Nd2Fe14B
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
For exploring rivers and lakes, we recommend UMP 75x25 [M10x3] GW F200 GOLD Lina / N42, which is exceptionally strong and has an impressive magnetic pulling force of approximately ~310.00 kg. This model is ideal for locating metal objects at the bottom of water bodies.
Neodymium magnets are highly effective for searching in water due to their powerful strength. UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 weighing 900.00 grams with a pulling force of ~310.00 kg is a perfect solution for recovering lost treasures.
When choosing a magnet for underwater searches, you should pay attention to the number of Gauss or Tesla value, which determines the lifting force. UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 has a pulling force of approximately ~310.00 kg, making it a effective solution for retrieving heavier items. Remember that the full power is achieved with the upper holder, while the side attachment offers only 10%-25% of that power.
The sideways force of a magnet is typically lower than the adhesive force because it depends on the fraction of the magnetic field that interacts with the metal surface. In the case of UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 with a pulling force of ~310.00 kg, maximum power are achieved with the upper holder, while the side holder offers only 10%-25% of the stated power.
he Lifting force was measured under laboratory conditions, using a smooth S235 low-carbon steel plate with a thickness of 10 mm, with the application of lifting force in a perpendicular manner. In a situation where the force acts parallelly, the magnet's attraction force can be five times lower! Any gap between the magnet and the plate can result in a reduction in the attraction force.
magnetic holder strength F200 GOLD F300 GOLD

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Shopping tips

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from immense power, neodymium magnets have the following advantages:

  • They do not lose power over time. After 10 years, their power decreases by only ~1% (theoretically),
  • They protect against demagnetization caused by external magnetic sources very well,
  • In other words, thanks to the shiny nickel, gold, or silver finish, the element gains an visually attractive appearance,
  • They exhibit very high magnetic induction on the surface of the magnet,
  • Thanks to their high temperature resistance, they can operate (depending on the shape) even at temperatures up to 230°C and above...
  • The ability for precise shaping and customization to specific needs – neodymium magnets can be produced in various forms and dimensions, which amplifies their universality in usage.
  • Significant importance in the industry of new technologies – are used in hard drives, electric drive mechanisms, medical equipment and various technologically advanced devices.

Disadvantages of neodymium magnets:

  • They are fragile when subjected to a powerful impact. If the magnets are exposed to impacts, we recommend using magnets in a protective case. The steel housing in the form of a holder protects the magnet from impacts and at the same time increases its overall strength,
  • They lose power at high temperatures. Most neodymium magnets experience permanent loss of strength when heated above 80°C (depending on the form and height). However, we also offer special magnets with high temperature resistance, up to 230°C,
  • Due to their susceptibility to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic, or other moisture-resistant materials when using them outdoors,
  • The use of a cover - a magnetic holder is recommended due to the limited production capabilities of creating threads or complex shapes in the magnet
  • Possible danger associated with microscopic parts of magnets are risky, if swallowed, which becomes significant in the context of children's health. Additionally, small elements of these products can be problematic in medical diagnosis when they are in the body.

Exercise Caution with Neodymium Magnets

Dust and powder from neodymium magnets are highly flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Neodymium magnets should not be near people with pacemakers.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. However, if the magnetic field does not affect the device, it can damage its components or deactivate the device when it is in a magnetic field.

Avoid bringing neodymium magnets close to a phone or GPS.

Neodymium magnets are a source of intense magnetic fields that cause interference with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets can become demagnetized at high temperatures.

Despite the fact that magnets have been found to maintain their efficacy up to temperatures of 80°C or 175°F, it's essential to consider that this threshold may fluctuate depending on the magnet's type, configuration, and intended usage.

Neodymium magnets are the most powerful magnets ever invented. Their power can surprise you.

Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.

The magnet coating is made of nickel, so be cautious if you have an allergy.

Studies clearly indicate a small percentage of people who suffer from metal allergies such as nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

 It is essential to maintain neodymium magnets out of reach from youngest children.

Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

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

Strong fields generated by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other similar devices. They can also damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Magnets made of neodymium are particularly fragile, resulting in shattering.

Neodymium magnets are characterized by significant fragility. 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.

Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.

Neodymium magnets bounce and touch each other mutually within a radius of several to around 10 cm from each other.

To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are strong neodymium magnets?.

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98