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 female thread can be versatile accessories, applied across manufacturing and everyday uses, such as automotive. They consist of a magnet, usually neodymium, enclosed within a steel shell, coated with zinc to prevent rusting. The female thread, available in sizes from M4 to M8, enables insertion of bolts, which facilitates installation of various components, such as signs, tools, or lamps. They work thanks to a strong magnetic field, that focuses at the mounting point, providing load capacity ranging from one to sixty kilograms, based on mounting dimensions. These are particularly helpful in the automotive industry, e.g. for attaching body panels, as well as in marketing, for hanging banners. Some models come with a rubber shell, e.g. in black or yellow colors, helping prevent surface damage and increases resistance to dampness. Benefits include high durability, ease of installation due to the internal threading, and the ability to transport heavy ferromagnetic objects. However, the grip strength depends on surface thickness, type of steel, and the gap between holder and object. It’s important to avoid impacts, as NdFeB magnets are brittle, and overtightening the screw may be dangerous. In addition, a magnetic zone may interfere with electronics, like phones or data carriers, therefore mounts should be stored away from those devices. Choosing mounts from trusted suppliers is advised, to ensure high quality and safe use during operation.

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 about 10 years, their power 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 exhibit 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...
Thanks to the flexibility in shaping or the ability to adapt to specific requirements – neodymium magnets can be produced in a wide range of shapes and sizes, which enhances their versatility in applications.
Wide application in advanced technologically fields – are used in HDD drives, electric motors, medical apparatus and other advanced devices.

Disadvantages of neodymium magnets:

They are prone to breaking as they are fragile when subjected to a strong impact. If the magnets are exposed to impacts, it is suggested using magnets in a metal holder. The steel housing in the form of a holder protects the magnet from impacts and simultaneously 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 form and height). However, we also offer special magnets with high temperature resistance, up to 230°C,
They rust in a humid environment. For outdoor use, we recommend using waterproof magnets, such as those made of rubber or plastic,
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 pose a threat, when accidentally ingested, which is crucial in the aspect of protecting young children. It's also worth noting that tiny parts of these products can hinder the diagnostic process in case of swallowing.

Handle with Care: Neodymium Magnets

Do not bring neodymium magnets close to GPS and smartphones.

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

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.

The magnet is coated with nickel - be careful 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.

Maintain neodymium magnets away from youngest children.

Neodymium magnets are not toys. Be cautious and make sure no child plays with them. In the case of swallowing multiple magnets simultaneously, they can attract to each other through the intestinal walls. In the worst case scenario, this can lead to death.

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

Magnetic 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. You should especially avoid placing neodymium magnets near electronic devices.

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

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

Neodymium magnets should not be near people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Neodymium magnetic are fragile and can easily crack and shatter.

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 connection between the magnets, small sharp metal fragments can be propelled in various directions at high speed. Eye protection is recommended.

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

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

Neodymium magnets can demagnetize at high temperatures.

Whilst Neodymium magnets can lose their magnetic properties 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.

Pay attention!

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