tel: +48 888 99 98 98

neodymium magnets

We offer red color magnetic Nd2Fe14B - our store's offer. Practically all magnesy neodymowe on our website are in stock for immediate delivery (check the list). See the magnet price list for more details check the magnet price list

Magnet for water searching F200 GOLD

Where to purchase very strong magnet? Magnet holders in airtight, solid steel casing are ideally suited for use in difficult weather conditions, including in the rain and snow see...

magnets with holders

Holders with magnets can be used to facilitate manufacturing, underwater discoveries, or locating meteors made of metal read...

We promise to ship your order on the same day before 2:00 PM on business days.

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

UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread

magnetic holder external thread

Catalog no 190332

GTIN: 5906301813859

5

Diameter Ø [±0,1 mm]

42 mm

Height [±0,1 mm]

20 mm

Height [±0,1 mm]

9 mm

Weight

80 g

Load capacity

66 kg / 647.24 N

33.96 with VAT / pcs + price for transport

27.61 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
27.61 ZŁ
33.96 ZŁ
price from 13 pcs
25.95 ZŁ
31.92 ZŁ
price from 29 pcs
24.30 ZŁ
29.89 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.

UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread

Specification/characteristics UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread
properties
values
Cat. no.
190332
GTIN
5906301813859
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
42 mm [±0,1 mm]
Height
20 mm [±0,1 mm]
Height
9 mm [±0,1 mm]
Weight
80 g [±0,1 mm]
Load capacity ~ ?
66 kg / 647.24 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 offer robust accessories, applied in many fields, including construction, agriculture, or assembly technology. Their design relies on a strong NdFeB magnet, embedded within a durable metal casing coated with zinc and nickel. The external thread in sizes M4–M8 allows installation into threaded holes, which enables to fasten nameplates, lighting, tools. Thanks to a focused magnetic field, such mounts offer a pulling strength from 3 to 68 kg, depending on the model and size. Their use include not only industrial operations and DIY projects. Some versions are equipped with a protective layer, which protects surfaces from damage and increases grip. Note, however, that neodymium magnets are brittle and are prone to cracking under over-tightened mounting. Caution during installation is recommended, and they should be stored away from magnetic cards and electronic devices. For best quality, it is advisable to choose models from trusted manufacturers.

Advantages and disadvantages of neodymium magnets NdFeB.

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

  • They do not lose strength over time - after about 10 years, their strength decreases by only ~1% (theoretically),
  • They are highly 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,
  • Magnetic neodymium magnets are characterized by very high magnetic induction on the surface of the magnet and can operate (depending on the shape) even at temperatures of 230°C or higher...
  • Due to the option of accurate forming and adaptation to individual needs – neodymium magnets can be produced in various forms and dimensions, which amplifies their universality in usage.
  • Wide application in the industry of new technologies – are utilized in hard drives, electric motors, medical equipment or very advanced devices.

Disadvantages of neodymium magnets:

  • They are prone to breaking as they are extremely fragile when subjected to a strong impact. If the magnets are exposed to impacts, it is suggested using magnets in a protective case. The steel housing in the form of a holder protects the magnet from impacts and also increases its overall strength,
  • They lose power 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,
  • Magnets exposed to a humid environment can corrode. Therefore, when using them outdoors, we suggest using waterproof magnets made of rubber, plastic, or other moisture-resistant materials,
  • Limited ability to create threads or complex shapes in the magnet - the use of a housing is recommended - magnetic holder
  • Health risk associated with microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of children's health. Furthermore, miniscule components of these magnets are able to complicate diagnosis in case of swallowing.

Exercise Caution with Neodymium Magnets

The magnet is coated with nickel. Therefore, exercise caution 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets are over 10 times stronger than ferrite magnets (the ones in speakers), and their power can shock 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 especially fragile, which leads to their breakage.

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

Neodymium magnets can become demagnetized at high temperatures.

While Neodymium magnets can demagnetize 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.

Keep neodymium magnets away from TV, wallet, and computer HDD.

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 destroy devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these 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.

Neodymium magnets should not be near people with pacemakers.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

Under no circumstances should neodymium magnets be brought 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.

 It is important to maintain neodymium magnets out of reach from children.

Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

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

Magnets attract each other within a distance of several to about 10 cm from each other. Remember not to put fingers between magnets or alternatively in their path when attract. Depending on how massive the neodymium magnets are, they can lead to a cut or a fracture.

Safety precautions!

In order to illustrate why neodymium magnets are so dangerous, see the article - How very dangerous are very strong neodymium magnets?.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98