UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

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UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180315

GTIN: 5906301813712

Diameter Ø [±0,1 mm]

16 mm

Height [±0,1 mm]

13 mm

Height [±0,1 mm]

5 mm

Weight

6.6 g

Load capacity

5 kg / 49.03 N

3.80 ZŁ with VAT / pcs + price for transport

3.09 ZŁ net + 23% VAT / pcs

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UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

Specification/characteristics UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

properties

values

Cat. no.

180315

GTIN

5906301813712

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

16 mm [±0,1 mm]

Height

13 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

6.6 g [±0,1 mm]

Load capacity ~ ?

5 kg / 49.03 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

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

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

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Magnetic holders with internal thread can be versatile accessories, applied in manufacturing and everyday applications, e.g. in storage facilities. They consist of a neodymium magnet, typically neodymium, embedded in a steel shell, covered with Zn layer to prevent rusting. The female thread, available in sizes from M4 to M8, enables insertion of screws, which facilitates assembly of various items, like nameplates, instruments, or lamps. They work thanks to a strong magnetic field, which concentrates at the mounting point, providing holding force ranging from one to sixty kilograms, based on mounting dimensions. These are particularly helpful in vehicle manufacturing, e.g. for securing car body components, as well as in marketing, for hanging banners. Certain types come with a rubber shell, e.g. in black or yellow colors, helping prevent surface damage and increases resistance to dampness. Advantages cover great strength, simple mounting due to the internal threading, and the ability to transport heavy ferromagnetic objects. Still, the holding force relies on surface thickness, material used, and the gap between holder and object. Preventing mechanical shocks is crucial, since neodymium magnets are fragile, and over-tightening the bolt can cause damage. Moreover, a strong magnetic field may affect electronic devices, such as smartphones or magnetic cards, so holders should be kept away from such equipment. It is recommended to choose holders from reputable manufacturers, to guarantee reliability and safety during use.

Advantages and disadvantages of neodymium magnets NdFeB.

In addition to 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 exceptionally resistant to demagnetization caused by an external magnetic field,
In other words, thanks to the glossy nickel, gold, or silver finish, the element gains an aesthetic appearance,
They have 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 and adaptation to individual needs – neodymium magnets can be produced in many variants of shapes or sizes, which expands the range of their possible uses.
Significant importance in the industry of new technologies – find application in HDD drives, electric motors, medical equipment or various technologically advanced devices.

Disadvantages of neodymium magnets:

They can break when subjected to a strong impact. If the magnets are exposed to impacts, we recommend using magnets in a metal holder. 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 loss in strength (although it is worth noting that this is dependent on the form 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,
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 arising from small pieces of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting young children. Furthermore, tiny parts of these devices have the potential to hinder the diagnostic process in case of swallowing.

Be Cautious with Neodymium Magnets

Under no circumstances should neodymium magnets be brought close to GPS and smartphones.

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

Magnets made of neodymium are highly susceptible to damage, leading to breaking.

Neodymium magnetic are extremely delicate, and by joining them in an uncontrolled manner, they will crack. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.

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

Magnets will crack or crumble with careless joining to each other. You can't approach them to each other. At a distance less than 10 cm you should have them very firmly.

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

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. Avoid placing neodymium magnets in close proximity to electronic devices.

Avoid contact with neodymium magnets 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 should not be near people with pacemakers.

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 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.

Keep neodymium magnets far from 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.

Neodymium magnets are among the strongest magnets on Earth. The surprising force they generate between each other can shock you.

To handle magnets properly, it is best to familiarize yourself with our information beforehand. This will help you avoid significant harm to your body and the magnets themselves.

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Exercise caution!

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