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neodymium magnets

We provide blue color magnets Nd2Fe14B - our offer. Practically all magnesy neodymowe on our website are in stock for immediate purchase (check the list). Check out the magnet price list for more details see the magnet price list

Magnets for treasure hunters F200 GOLD

Where to purchase strong magnet? Holders with magnets in solid and airtight steel enclosure are excellent for use in difficult, demanding weather conditions, including in the rain and snow see more...

magnets with holders

Holders with magnets can be used to facilitate production processes, underwater exploration, or locating meteorites made of ore see more...

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UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder

search holder

Catalog no 210447

GTIN: 5906301814115

5

Diameter Ø [±0,1 mm]

94 mm

Height [±0,1 mm]

28 mm

Weight

1600 g

Load capacity

330 kg / 3236.19 N

Coating

[NiCuNi] nickel

200.00 with VAT / pcs + price for transport

162.60 ZŁ net + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
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UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder

Specification/characteristics UMP 94x28 [3xM10] GW F300 GOLD / N38 - search holder
properties
values
Cat. no.
210447
GTIN
5906301814115
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
94 mm [±0,1 mm]
Height
28 mm [±0,1 mm]
Weight
1600 g [±0,1 mm]
Load capacity ~ ?
330 kg / 3236.19 N
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

properties
values
units
coercivity bHc ?
860-915
kA/m
coercivity bHc ?
10.8-11.5
kOe
energy density [Min. - Max.] ?
287-303
BH max KJ/m
energy density [Min. - Max.] ?
36-38
BH max MGOe
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
actual internal force iHc
≥ 955
kA/m
actual internal force iHc
≥ 12
kOe
max. temperature ?
≤ 80
°C

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

For underwater searches, we recommend UMP 94x28 [3xM10] GW F300 GOLD / N38, which is exceptionally strong and has an impressive magnetic pulling force of approximately ~330 kg. This model is perfect for locating metal objects at the bottom of water bodies.
Neodymium magnets are ideal for retrieving in water due to their high lifting force. UMP 94x28 [3xM10] GW F300 GOLD / N38 weighing 1600 grams with a pulling force of ~330 kg is a perfect solution for finding lost treasures.
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 94x28 [3xM10] GW F300 GOLD / N38 has a pulling force of approximately ~330 kg, making it a powerful tool for retrieving objects with significant mass. 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 94x28 [3xM10] GW F300 GOLD / N38 with a pulling force of ~330 kg, maximum power are achieved with the upper holder, while the side holder offers only one-fourth to one-quarter of the declared force.
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 lifting force in a vertical manner. In a situation where the sliding occurs, the magnet's lifting capacity can be five times lower! Any gap between the magnet and the plate can cause a reduction in the attraction force.
magnetic holder strength F200 GOLD F300 GOLD

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to their long-term stability, neodymium magnets provide the following advantages:

  • Their strength is maintained, and after approximately ten years, it drops only by ~1% (theoretically),
  • Their ability to resist magnetic interference from external fields is notable,
  • Thanks to the polished finish and silver coating, they have an aesthetic appearance,
  • They exhibit extremely high levels of magnetic induction near the outer area of the magnet,
  • They are suitable for high-temperature applications, operating effectively at 230°C+ due to advanced heat resistance and form-specific properties,
  • The ability for custom shaping or adaptation to specific needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which amplifies their functionality across industries,
  • Wide application in advanced technical fields – they are utilized in HDDs, electric motors, diagnostic apparatus along with other advanced devices,
  • Compactness – despite their small size, they generate strong force, making them ideal for precision applications

Disadvantages of rare earth magnets:

  • They are prone to breaking when subjected to a powerful impact. If the magnets are exposed to physical collisions, it is advisable to use in a metal holder. The steel housing, in the form of a holder, protects the magnet from breakage while also reinforces its overall durability,
  • They lose strength at high temperatures. Most neodymium magnets experience permanent reduction in strength when heated above 80°C (depending on the geometry and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
  • Magnets exposed to damp air can corrode. Therefore, for outdoor applications, we advise waterproof types made of coated materials,
  • Limited ability to create precision features in the magnet – the use of a housing is recommended,
  • Potential hazard linked to microscopic shards may arise, especially if swallowed, which is notable in the context of child safety. Furthermore, small elements from these devices might hinder health screening after being swallowed,
  • Due to the price of neodymium, their cost is above average,

Exercise Caution with Neodymium Magnets

Neodymium magnets are highly fragile, they easily break as well as can become damaged.

Neodymium magnets are highly fragile, and by joining them in an uncontrolled manner, they will crumble. 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, small metal fragments can be dispersed in different directions.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Neodymium magnets are among the strongest magnets on Earth. The astonishing force they generate between each other can surprise you.

To handle 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.

  Neodymium magnets should not be around youngest children.

Not all neodymium magnets are toys, so do not let children play with them. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Never bring neodymium magnets close to a phone and GPS.

Neodymium magnets are a source of strong 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 demagnetize at high temperatures.

Although magnets have demonstrated their effectiveness up to 80°C or 175°F, the temperature can vary depending on the type, shape, and intended use of the specific magnet.

Neodymium magnets are not recommended for 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. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.

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.

Magnets will attract each other within a distance of several to about 10 cm from each other. Don't put your fingers in the path of magnet attraction, as a significant injury may occur. Magnets, depending on their size, are able even cut off a finger or alternatively there can be a severe pressure or even a fracture.

The magnet is coated with nickel - be careful if you have an 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.

Strong magnetic fields emitted by neodymium magnets can destroy magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.

Safety rules!

In order for you to know how strong neodymium magnets are and why they are so dangerous, see the article - Dangerous powerful neodymium magnets.

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tel: +48 888 99 98 98