e-mail: bok@dhit.pl

neodymium magnets

We provide blue color magnetic Nd2Fe14B - our offer. Practically all "magnets" on our website are available for immediate delivery (see the list). Check out the magnet pricing for more details check the magnet price list

Magnet for water searching F300 GOLD

Where to buy very strong neodymium magnet? Holders with magnets in airtight and durable steel enclosure are excellent for use in variable and difficult weather, including in the rain and snow see more...

magnetic holders

Holders with magnets can be applied to facilitate manufacturing, exploring underwater areas, or locating meteors from gold more...

Order always shipped on the same day before 2:00 PM on business days.

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

UMP 135x40 [M10+M12] GW F600 Lina / N38 - search holder

search holder

Catalog no 210385

GTIN: 5906301814047

5

Diameter Ø [±0,1 mm]

135 mm

Height [±0,1 mm]

40 mm

Weight

4300 g

Load capacity

680 kg / 6668.52 N

Coating

[NiCuNi] nickel

649.99 with VAT / pcs + price for transport

528.45 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
528.45 ZŁ
649.99 ZŁ
price from 2 pcs
496.74 ZŁ
610.99 ZŁ
price from 5 pcs
465.04 ZŁ
571.99 ZŁ

Want to negotiate the price?

Call us +48 22 499 98 98 or write via form on the contact page. Test the magnet's power with our power calculator.

Orders placed by 14:00 are shipped the same day.

UMP 135x40 [M10+M12] GW F600 Lina / N38 - search holder

Specification/characteristics UMP 135x40 [M10+M12] GW F600 Lina / N38 - search holder
properties
values
Cat. no.
210385
GTIN
5906301814047
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
135 mm [±0,1 mm]
Height
40 mm [±0,1 mm]
Weight
4300 g [±0,1 mm]
Load capacity ~ ?
680 kg / 6668.52 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 135x40 [M10+M12] GW F600 Lina / N38, which is exceptionally strong and has an impressive magnetic pulling force of approximately ~680 kg. This model is perfect for locating metal objects at the bottom of water bodies.
Neodymium magnets are efficient for searching in water due to their high lifting force. UMP 135x40 [M10+M12] GW F600 Lina / N38 weighing 4300 grams with a pulling force of ~680 kg is a perfect solution for recovering metallic findings.
When choosing a magnetic holder for water exploration, you should pay attention to the number of Gauss or Tesla value, which determines the lifting force. UMP 135x40 [M10+M12] GW F600 Lina / N38 has a pulling force of approximately ~680 kg, making it a effective solution for recovering 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 perpendicular force because it depends on the fraction of the magnetic field that interacts with the metal surface. In the case of UMP 135x40 [M10+M12] GW F600 Lina / N38 with a lifting capacity of ~680 kg, maximum power are achieved with the top attachment, while the side holder offers only 10%-25% of the stated power.
he Lifting force was measured under test 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 force acts parallelly, the magnet's lifting capacity can be 5 times lower! Any gap between the magnet and the plate can cause a reduction in the lifting force.
magnetic holder strength F200 GOLD F300 GOLD

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to their exceptional magnetic power, neodymium magnets offer the following advantages:

  • They retain their attractive force for nearly ten years – the drop is just ~1% (in theory),
  • They protect against demagnetization induced by external electromagnetic environments remarkably well,
  • By applying a shiny layer of gold, the element gains a sleek look,
  • They have exceptional magnetic induction on the surface of the magnet,
  • These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to form),
  • With the option for customized forming and precise design, these magnets can be produced in numerous shapes and sizes, greatly improving engineering flexibility,
  • Significant impact in new technology industries – they are utilized in data storage devices, rotating machines, diagnostic apparatus as well as other advanced devices,
  • Thanks to their concentrated strength, small magnets offer high magnetic performance, while occupying minimal space,

Disadvantages of rare earth magnets:

  • They are fragile when subjected to a strong impact. If the magnets are exposed to physical collisions, they should be placed in a steel housing. The steel housing, in the form of a holder, protects the magnet from damage and reinforces its overall resistance,
  • They lose power at extreme temperatures. Most neodymium magnets experience permanent degradation in strength when heated above 80°C (depending on the shape and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
  • Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of synthetic coating for outdoor use,
  • Using a cover – such as a magnetic holder – is advised due to the restrictions in manufacturing threads directly in the magnet,
  • Potential hazard from tiny pieces may arise, especially if swallowed, which is important in the health of young users. It should also be noted that miniature parts from these magnets might complicate medical imaging when ingested,
  • Higher purchase price is an important factor to consider compared to ceramic magnets, especially in budget-sensitive applications

Exercise Caution with Neodymium Magnets

 It is important to keep neodymium magnets out of reach 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.

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.

Magnets will crack or crumble with careless connecting to each other. Remember not to approach them to each other or have them firmly in hands at a distance less than 10 cm.

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 place neodymium magnets near a computer HDD, TV, and wallet.

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. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic 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 among the most powerful magnets on Earth. The astonishing force they generate between each other can surprise you.

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.

Magnets made of neodymium are noted for their fragility, which can cause them to crumble.

Neodymium magnets are highly delicate, and by joining them in an uncontrolled manner, they will crumble. Neodymium magnets are made of metal and coated with a shiny nickel, but they are not as durable as steel. At the moment of connection between the magnets, small metal fragments can be dispersed in different directions.

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

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.

Never bring neodymium magnets close to a phone and GPS.

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

Pay attention!

Please see the article - What danger lies in neodymium magnets? You will learn how to handle them properly.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98