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neodymium magnets

We offer red color magnetic Nd2Fe14B - our offer. All magnesy on our website are available for immediate delivery (check the list). Check out the magnet pricing for more details see the magnet price list

Magnets for treasure hunters F400 GOLD

Where to buy very strong magnet? Holders with magnets in solid and airtight steel enclosure are excellent for use in difficult climate conditions, including in the rain and snow more information...

magnets with holders

Magnetic holders can be used to improve production, underwater exploration, or finding meteors from gold more...

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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

190.00 gross price (including VAT) / pcs +

154.47 ZŁ net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
154.47 ZŁ
190.00 ZŁ
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145.20 ZŁ
178.60 ZŁ
price from 15 pcs
135.93 ZŁ
167.19 ZŁ

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Call us tel: +48 22 499 98 98 or contact us via contact form on our website. You can check the strength as well as the shape of neodymium magnet in our magnetic calculator magnetic calculator

Orders placed by 2:00 PM will be shipped on the same business day.

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 retrieving metal objects at the bottom of water bodies.
Neodymium magnets are efficient for searching in water environments due to their high lifting force. 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 finding metallic findings.
When choosing a magnet for water exploration, 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 maximum strength is achieved with the upper holder, while the side attachment offers only 10%-25% of that power.
The sliding force of a magnetic holder is typically lower than the perpendicular 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 lifting capacity of ~310.00 kg, full capabilities are achieved with the upper holder, while the side attachment offers only one-fourth to one-quarter of the stated power.
he attraction force was measured under laboratory conditions, using a smooth S235 low-carbon steel plate with a thickness of 10 mm, with the application of pulling force in a perpendicular manner. In a situation where the sliding occurs, the magnet's attraction force can be 5 times lower! Any gap between the magnet and the plate can cause a reduction in the lifting force.
magnetic pot strength F200 GOLD F300 GOLD

Shopping tips

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to 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 are extremely resistant to demagnetization by external magnetic sources,
  • In other words, thanks to the shiny nickel, gold, or silver finish, the element gains an aesthetic appearance,
  • They exhibit very high magnetic induction on the surface of the magnet,
  • Magnetic neodymium magnets are characterized by hugely high magnetic induction on the surface of the magnet and can operate (depending on the shape) even at temperatures of 230°C or higher...
  • The ability for precise shaping and customization to specific needs – neodymium magnets can be produced in many variants of shapes and sizes, which expands the range of their possible uses.
  • Wide application in the industry of new technologies – are utilized in hard drives, electric motors, medical devices and very advanced devices.

Disadvantages of neodymium magnets:

  • They are fragile when subjected to a strong 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,
  • Magnets lose their power due to exposure to high temperatures. In most cases, when the temperature exceeds 80°C, these magnets experience permanent reduction in strength (although it is worth noting that this is dependent on the shape and size of the magnet). To avoid this problem, we offer special magnets marked with the [AH] symbol, which exhibit high temperature resistance. They can operate even at temperatures as high as 230°C or more,
  • Due to their susceptibility to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic, or other moisture-resistant materials when using them outdoors,
  • The use of a cover or a magnetic holder is recommended due to the limited possibilities of manufacturing threads or complex shapes in the magnet
  • Possible danger arising from small pieces of magnets are risky, if swallowed, which becomes significant in the aspect of protecting young children. Furthermore, tiny parts of these magnets can be problematic in medical diagnosis after entering the body.

Handle Neodymium Magnets Carefully

Neodymium magnets are the most powerful magnets ever created, and their strength can surprise you.

To use magnets properly, it is best to familiarize yourself with our information beforehand. This will help you avoid significant harm to your body and the magnets themselves.

Keep neodymium magnets as far away as possible from GPS and smartphones.

Intense magnetic fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets can attract to each other, pinch the skin, and cause significant injuries.

Magnets will attract each other within a distance of several to around 10 cm from each other. Remember not to place fingers between magnets or alternatively in their path when attract. Depending on how massive the neodymium magnets are, they can lead to a cut or alternatively a fracture.

Neodymium magnets can become demagnetized at high temperatures.

In certain circumstances, Neodymium magnets may experience demagnetization when subjected to high temperatures.

Neodymium magnetic are noted for their fragility, which can cause them to become damaged.

Neodymium magnets are characterized by considerable fragility. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of connection between the magnets, sharp metal fragments can be dispersed in different directions.

Avoid contact with neodymium magnets if you have a nickel 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, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Keep neodymium magnets away from people with pacemakers.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

You should maintain neodymium magnets at a safe distance from the wallet, computer, and TV.

Neodymium magnets generate intense magnetic fields that can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also damage videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets at a safe distance from these electronic devices.

  Do not give neodymium magnets to children.

Neodymium magnets are not toys. Do not allow children to play with them. They can be a significant choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing severe injuries, and even death.

Dust and powder from neodymium magnets are highly flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

In order to illustrate why neodymium magnets are so dangerous, see the article - How very dangerous are very powerful neodymium magnets?.

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tel: +48 888 99 98 98