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neodymium magnets

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

Magnet for water searching F400 GOLD

Where to buy strong neodymium magnet? Magnetic holders in solid and airtight steel enclosure are ideally suited for use in challenging weather, including in the rain and snow see more...

magnets with holders

Holders with magnets can be applied to enhance production, exploring underwater areas, or searching for space rocks made of ore see more...

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UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

magnetic holder external thread

Catalog no 190417

GTIN: 5906301813880

5

Diameter Ø [±0,1 mm]

75 mm

Height [±0,1 mm]

34 mm

Height [±0,1 mm]

18 mm

Weight

475 g

Load capacity

162 kg / 1588.68 N

189.42 with VAT / pcs + price for transport

154.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
154.00 ZŁ
189.42 ZŁ
price from 350 pcs
144.76 ZŁ
178.05 ZŁ
price from 800 pcs
135.52 ZŁ
166.69 ZŁ

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UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Specification/characteristics UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread
properties
values
Cat. no.
190417
GTIN
5906301813880
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
75 mm [±0,1 mm]
Height
34 mm [±0,1 mm]
Height
18 mm [±0,1 mm]
Weight
475 g [±0,1 mm]
Load capacity ~ ?
162 kg / 1588.68 N
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

Mounts with built-in neodymium magnets with external thread are modern accessories, applied across various industries, including construction, light industry, or assembly technology. Their design relies on a strong NdFeB magnet, embedded in steel housing protected by an anti-corrosion layer. The external thread in sizes M4–M8 enables mounting into threaded holes, which makes it possible to screw in nameplates, lighting, tools. With the help of a focused magnetic field, these holders provide a pulling strength of up to 68 kg, depending on the model and size. Their use include both workshops and home installations. Some versions feature a rubber coating, which protects surfaces from damage and increases grip. However, it is important to remember NdFeB magnets are brittle and are prone to cracking under excessive tightening. Caution during installation is recommended, and they should be stored away from magnetic cards and electronic devices. To ensure reliability, one should opt for certified products.

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to immense power, neodymium magnets have the following advantages:

  • They do not lose their power (of the magnet). After approximately 10 years, their power decreases by only ~1% (theoretically),
  • They are extremely resistant to demagnetization by external magnetic sources,
  • By applying a shiny coating of nickel, gold, or silver, the element gains an aesthetic appearance,
  • They possess very high magnetic induction on the surface of the magnet,
  • Thanks to their high temperature resistance, they can operate (depending on the form) even 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 or sizes, which expands the range of their possible uses.
  • Wide application in modern technologies – find application in computer drives, electric drive mechanisms, medical devices or various technologically advanced devices.

Disadvantages of neodymium magnets:

  • They are fragile when subjected to a strong 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,
  • High temperatures can reduce the power of neodymium magnets. Typically, after heating above 80°C, most of them experience a permanent loss in strength (although it is dependent on the form and size). To prevent this, we offer special magnets marked with the symbol [AH], which are highly resistant to high temperatures. They can operate even at temperatures up to 230°C, making them an ideal solution for applications requiring high-temperature operation,
  • 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 or a magnetic holder is recommended due to the limited possibilities of manufacturing threads or complex shapes in the magnet
  • Possible danger associated with microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of children's health. It's also worth noting that tiny parts of these products can hinder the diagnostic process in case of swallowing.

Be Cautious with Neodymium Magnets

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

Read the information on our website on how to properly utilize neodymium magnets and avoid significant harm to your body and unintentional damage to the magnets.

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

Neodymium magnets are especially fragile, which leads to shattering.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. Despite being made of metal and coated with a shiny nickel plating, they are not as hard as steel. At the moment of collision between the magnets, tiny sharp metal fragments can be propelled in various directions at high speed. Eye protection is recommended.

You should keep neodymium magnets at a safe distance from the wallet, computer, and TV.

Strong magnetic fields emitted by neodymium magnets can damage 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. Avoid placing neodymium magnets in close proximity to electronic devices.

Dust and powder from neodymium magnets are highly flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

  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.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

Neodymium magnets jump and also clash mutually within a distance of several to around 10 cm from each other.

Keep neodymium magnets away from 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.

Never bring neodymium magnets close to a phone and GPS.

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.

Safety precautions!

To show why neodymium magnets are so dangerous, read the article - How dangerous are strong neodymium magnets?.

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98