tel: +48 888 99 98 98

neodymium magnets

We offer yellow color magnets Nd2Fe14B - our proposal. Practically all "neodymium magnets" in our store are available for immediate purchase (check the list). Check out the magnet pricing for more details check the magnet price list

Magnets for water searching F200 GOLD

Where to purchase very strong neodymium magnet? Holders with magnets in airtight and durable enclosure are ideally suited for use in difficult, demanding climate conditions, including during rain and snow more information...

magnetic holders

Magnetic holders can be applied to enhance manufacturing, underwater discoveries, or locating meteors made of metal check...

Enjoy delivery of your order on the same day before 2:00 PM on working days.

Dhit sp. z o.o. logo
Product on order awaiting delivery!

UMP 65x45 [M8]x2 GW / N38 - search holder

search holder

catalog number 210348

GTIN: 5906301813996

5.0

diameter Ø

65 mm [±0,1 mm]

height

45 mm [±0,1 mm]

capacity ~

230.00 kg / 2255.53 N

max. temperature

≤ 80 °C

150.00 PLN gross price (including VAT) / pcs +

121.95 PLN net price + 23% VAT / pcs

bulk discounts:

need more quantity?

price from 1 pcs
121.95 PLN
150.00 PLN
price from 9 pcs
114.63 PLN
140.99 PLN
price from 19 pcs
107.32 PLN
132.00 PLN

Don't know what to choose?

Call us tel: +48 888 99 98 98 or get in touch through form on the contact page. You can check the power as well as the appearance of neodymium magnets in our magnetic calculator magnetic mass calculator

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

Specification: search holder 65x45 [M8]x2 GW / N38

Characteristics: search holder 65x45 [M8]x2 GW / N38
Properties
Values
catalog number
210348
production / distribution
Dhit sp. z o.o.
country of origin
Poland / China / Germany
customs code
85059029
diameter Ø
65 mm [±0,1 mm]
height
45 mm [±0,1 mm]
capacity ~ ?
230.00 kg / 2255.53 N
max. temperature ?
≤ 80 °C
coating type ?
[NiCuNi] nickel
weight
1170.00 g
execution tolerance
± 0.1 mm
typ uchwytu
dwustronny
rozmiar ucha
2x ucho M8 / 1x szekla M10
ilość magnesów
2 szt.
rodzaj materiału
stal rdzewna
strumień magnetyczny
~ 6000 Gs

Magnetic properties of the material N38

material characteristics N38
Properties
Values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
coercivity bHc ?
10.8-11.5
kOe
coercivity bHc ?
860-915
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.]
36-38
BH max MGOe
energy density [Min. - Max.]
287-303
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 underwater searches, we recommend UMP 65x45 [M8]x2 GW / N38, which is exceptionally strong and has an impressive magnetic pulling force of approximately ~230.00 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 strong attraction capability. UMP 65x45 [M8]x2 GW / N38 weighing 1170.00 grams with a pulling force of ~230.00 kg is a great choice 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 65x45 [M8]x2 GW / N38 has a pulling force of approximately ~230.00 kg, making it a powerful tool for recovering objects with significant mass. Remember that the maximum strength is achieved with the top attachment, while the side attachment offers only 10%-25% of that power.
The sliding 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 65x45 [M8]x2 GW / N38 with a pulling force of ~230.00 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 Lifting 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 attraction force can be 5x 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

Recommended articles for purchase

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

  • They do not lose power over time. After approximately 10 years, their power decreases by only ~1% (theoretically),
  • They are exceptionally resistant to demagnetization caused by an external magnetic field,
  • 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 high thermal resistance, allowing them to operate at temperatures up to 230°C and above...
  • Thanks to the flexibility in shaping and the ability to adapt to specific requirements – neodymium magnets can be produced in various forms and dimensions, which enhances their versatility in applications.
  • Key role in the industry of new technologies – are used in hard drives, electric drive mechanisms, medical apparatus or other advanced devices.

Disadvantages of neodymium magnets:

  • They can break 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,
  • They lose strength at high temperatures. Most neodymium magnets experience permanent loss of strength when heated above 80°C (depending on the shape and height). However, we also offer special magnets with high temperature resistance, up to 230°C,
  • 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 - a magnetic holder is recommended due to the limited production capabilities of creating 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. Additionally, small elements of these products can complicate diagnosis after entering the body.

Exercise Caution with Neodymium Magnets

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 may crack or crumble with careless joining to each other. Remember not to move them to each other or have them firmly in hands at a distance less than 10 cm.

If you have a nickel allergy, avoid contact with neodymium magnets.

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.

Comparing neodymium magnets to ferrite magnets (found in speakers), they are 10 times more powerful, and their strength can surprise you.

Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.

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

The strong magnetic field generated by neodymium magnets can damage 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.

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.

Keep neodymium magnets away from GPS and smartphones.

Neodymium magnets produce strong magnetic fields that interfere with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets produce strong magnetic fields that can interfere 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 magnetic are delicate and can easily break and shatter.

Neodymium magnets are characterized by significant 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.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.

  Do not give neodymium magnets to children.

Not all neodymium magnets are toys, so do not let children play with them. Small magnets pose a serious choking hazard or can attract to each other in the intestines. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

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

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98