tel: +48 888 99 98 98

neodymium magnets

We offer yellow color magnets Nd2Fe14B - our offer. All magnesy on our website are available for immediate purchase (check the list). Check out the magnet price list for more details check the magnet price list

Magnet for fishing F200 GOLD

Where to buy very strong neodymium magnet? Magnetic holders in solid and airtight steel casing are excellent for use in difficult, demanding weather conditions, including in the rain and snow see...

magnetic holders

Holders with magnets can be applied to improve manufacturing, exploring underwater areas, or finding space rocks made of metal read...

We promise to ship your order on the day of purchase by 2:00 PM on weekdays.

Dhit sp. z o.o. logo
Product available shipping tomorrow

UMP 107x40 [M8+M10] GW F 400 kg / N38 - search holder

search holder

Catalog no 210338

GTIN: 5906301813972

5

Diameter Ø [±0,1 mm]

107 mm

Height [±0,1 mm]

40 mm

Weight

2350 g

Load capacity

480 kg / 4707.19 N

Coating

[NiCuNi] nickel

400.00 with VAT / pcs + price for transport

325.20 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
325.20 ZŁ
400.00 ZŁ
price from 4 pcs
305.69 ZŁ
376.00 ZŁ
price from 8 pcs
286.18 ZŁ
352.00 ZŁ

Not sure what to buy?

Pick up the phone and ask +48 22 499 98 98 otherwise drop us a message using request form through our site.
Parameters and form of neodymium magnets can be reviewed on our force calculator.

Order by 14:00 and we’ll ship today!

UMP 107x40 [M8+M10] GW F 400 kg / N38 - search holder

Specification/characteristics UMP 107x40 [M8+M10] GW F 400 kg / N38 - search holder
properties
values
Cat. no.
210338
GTIN
5906301813972
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
107 mm [±0,1 mm]
Height
40 mm [±0,1 mm]
Weight
2350 g [±0,1 mm]
Load capacity ~ ?
480 kg / 4707.19 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 exploring rivers and lakes, we recommend UMP 107x40 [M8+M10] GW F 400 kg / N38, which is exceptionally strong and has an impressive magnetic pulling force of approximately ~480 kg. This model is perfect for retrieving metal objects at the bottom of water bodies.
Neodymium magnets are highly effective for searching in water due to their powerful strength. UMP 107x40 [M8+M10] GW F 400 kg / N38 weighing 2350 grams with a pulling force of ~480 kg is a perfect solution for recovering metallic findings.
When choosing a magnetic holder for underwater searches, you should pay attention to the number of Gauss or Tesla value, which determines the attraction strength. UMP 107x40 [M8+M10] GW F 400 kg / N38 has a pulling force of approximately ~480 kg, making it a effective solution for recovering 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 107x40 [M8+M10] GW F 400 kg / N38 with a pulling force of ~480 kg, full capabilities are achieved with the upper holder, while the side holder offers only one-fourth to one-quarter of the stated power.
he attraction force was measured under test conditions, using a smooth S235 low-carbon steel plate with a thickness of 10 mm, with the application of pulling force in a vertical manner. In a situation where the force acts parallelly, the magnet's lifting capacity can be 5 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

Advantages and disadvantages of neodymium magnets NdFeB.

Apart from their strong holding force, neodymium magnets have these key benefits:

  • They have unchanged lifting capacity, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
  • They show exceptional resistance to demagnetization from outside magnetic sources,
  • Thanks to the glossy finish and nickel coating, they have an aesthetic appearance,
  • They have very high magnetic induction on the surface of the magnet,
  • Thanks to their high temperature resistance, they can operate (depending on the geometry) even at temperatures up to 230°C or more,
  • The ability for precise shaping and customization to custom needs – neodymium magnets can be manufactured in multiple variants of geometries, which amplifies their functionality across industries,
  • Important function in cutting-edge sectors – they serve a purpose in hard drives, electromechanical systems, healthcare devices and technologically developed systems,
  • Relatively small size with high magnetic force – neodymium magnets offer strong power in small dimensions, which makes them ideal in miniature devices

Disadvantages of rare earth magnets:

  • They may fracture when subjected to a strong impact. If the magnets are exposed to external force, we recommend in a steel housing. The steel housing, in the form of a holder, protects the magnet from breakage while also reinforces its overall strength,
  • Magnets lose magnetic efficiency when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible field weakening (influenced by the magnet’s profile). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
  • Magnets exposed to humidity can corrode. Therefore, for outdoor applications, we advise waterproof types made of plastic,
  • Using a cover – such as a magnetic holder – is advised due to the challenges in manufacturing holes directly in the magnet,
  • Safety concern related to magnet particles may arise, in case of ingestion, which is significant in the context of child safety. Additionally, miniature parts from these products can complicate medical imaging once in the system,
  • High unit cost – neodymium magnets are costlier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Handle Neodymium Magnets with Caution

People with pacemakers are advised to avoid neodymium magnets.

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.

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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

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

On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.

Do not place neodymium magnets near a computer HDD, TV, and wallet.

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. They can also damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

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

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

Neodymium magnetic are extremely fragile, leading to breaking.

Magnets made of neodymium are delicate and will break if allowed to collide with each other, even from a distance of a few centimeters. Despite being made of metal and coated with a shiny nickel plating, they are not as hard as steel. In the case of a collision between two magnets, there can be a scattering of small sharp metal fragments in different directions. Protecting your eyes is essential.

Under no circumstances should neodymium magnets be brought close to 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 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.

Dust and powder from neodymium magnets are 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.

 Keep neodymium magnets far from 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.

Exercise caution!

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

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98