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neodymium magnets

We provide blue color magnetic Nd2Fe14B - our offer. Practically all "neodymium magnets" on our website are in stock for immediate purchase (see the list). See the magnet price list for more details check the magnet price list

Magnet for water searching F300 GOLD

Where to buy powerful neodymium magnet? Magnet holders in airtight, solid steel casing are excellent for use in variable and difficult climate conditions, including during snow and rain more...

magnets with holders

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

We promise to ship ordered magnets on the day of purchase by 2:00 PM on working days.

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UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder

search holder

catalog number 210339


diameter Ø

135 mm [±0,1 mm]


40 mm [±0,1 mm]

capacity ~

680.00 kg / 6668.52 N

max. temperature

≤ 80 °C

720.01 PLN gross price (including VAT) / pcs +

585.37 PLN net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
585.37 PLN
720.01 PLN
price from 2 pcs
550.25 PLN
676.81 PLN
price from 4 pcs
515.13 PLN
633.61 PLN

Don't know what to buy?

Give us a call tel: +48 22 499 98 98 or contact us through form on the contact page. You can check the lifting capacity as well as the appearance of neodymium magnet in our magnetic calculator power calculator

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

Specification: search holder 135x40 [M10+M12] GW F 600 kg / N38

Characteristics: search holder 135x40 [M10+M12] GW F 600 kg / N38
catalog number
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
diameter Ø
135 mm [±0,1 mm]
40 mm [±0,1 mm]
capacity ~ ?
680.00 kg / 6668.52 N
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
4300.00 g
execution tolerance
± 0.1 mm
typ uchwytu
rozmiar ucha
3x ucho M12 / 1x szekla M10
ilość magnesów
2 szt.
rodzaj materiału
stal rdzewna
strumień magnetyczny
~ 10000 Gs

Magnetic properties of the material N38

material characteristics N38
remenance Br [Min. - Max.] ?
remenance Br [Min. - Max.] ?
coercivity bHc ?
coercivity bHc ?
actual internal force iHc
≥ 12
actual internal force iHc
≥ 955
energy density [Min. - Max.]
BH max MGOe
energy density [Min. - Max.]
BH max KJ/m
max. temperature
≤ 80

Physical properties of sintered neodymium magnets Nd2Fe14B

Physical properties of sintered neodymium magnets Nd2Fe14B
Vickers hardness
Curie Temperature TC
312 - 380
Curie Temperature TF
593 - 716
Specific resistance
Bending strength
Compressive strength
Thermal expansion parallel (∥) to orientation (M)
(3-4) x 106
Thermal expansion perpendicular (⊥) to orientation (M)
-(1-3) x 10-6
Young's modulus
1.7 x 104
For exploring rivers and lakes, we recommend UMP 135x40 [M10+M12] GW F 600 kg / N38, which is very powerful and has an impressive magnetic pulling force of approximately ~680.00 kg. This model is ideal for retrieving metal objects at the bottom of water bodies.
Magnetic holders are efficient for searching in water environments due to their strong attraction capability. UMP 135x40 [M10+M12] GW F 600 kg / N38 weighing 4300.00 grams with a pulling force of ~680.00 kg is a perfect solution for recovering 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 135x40 [M10+M12] GW F 600 kg / N38 has a pulling force of approximately ~680.00 kg, making it a powerful tool for recovering 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 sideways force of a magnetic holder 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 135x40 [M10+M12] GW F 600 kg / N38 with a pulling force of ~680.00 kg, maximum power are achieved with the top attachment, while the side holder offers only one-fourth to one-quarter of the declared force.
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 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

List recommended items

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

  • They do not lose their strength (of the magnet). After about 10 years, their power decreases by only ~1% (theoretically),
  • They are extremely resistant to demagnetization by external magnetic sources,
  • Thanks to the shiny finish and nickel, gold, or silver coating, they have an aesthetic appearance,
  • They have very high magnetic induction on the surface of the magnet,
  • By using an appropriate combination of materials, they can achieve significant thermal resistance, allowing them to operate at temperatures up to 230°C and above...
  • Due to the option of accurate forming or adaptation to individual needs – neodymium magnets can be produced in many variants of shapes and sizes, which enhances their versatility in applications.
  • Key role in advanced technologically fields – are used in computer drives, electric motors, medical equipment or other modern machines.

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,
  • Magnets lose their strength 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,
  • Magnets exposed to a humid environment can corrode. Therefore, when using them outdoors, we recommend using waterproof magnets made of rubber, plastic, or other moisture-resistant materials,
  • 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
  • Health risk to health from tiny fragments of magnets are risky, when accidentally ingested, which becomes significant in the context of children's health. Additionally, miniscule components of these magnets have the potential to complicate diagnosis in case of swallowing.

Precautions with Neodymium Magnets

The magnet coating contains nickel, so be cautious 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.

Neodymium magnets are the most powerful magnets ever invented. Their power 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.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets are generally resilient, their ability to maintain their magnetic potency can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.

The strong magnetic field generated by neodymium magnets can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also damage devices like video players, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

 Maintain neodymium magnets far from children.

Neodymium magnets are not toys. Be cautious and make sure no child plays 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.

Neodymium magnets are characterized by being fragile, which can cause them to shatter.

Neodymium magnets are characterized by considerable fragility. Neodymium magnetic 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.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.

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

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

Do not bring neodymium magnets close to GPS and smartphones.

Magnetic fields interfere with compasses and magnetometers used in navigation for air and sea transport, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets produce strong magnetic fields that can interfere 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.

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

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