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UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

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UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180318

GTIN: 5906301813743

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

18 mm

Height [±0,1 mm]

8 mm

Weight

42 g

Load capacity

34 kg / 333.43 N

15.22 ZŁ with VAT / pcs + price for transport

12.37 ZŁ net + 23% VAT / pcs

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UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

Specification/characteristics UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

properties

values

Cat. no.

180318

GTIN

5906301813743

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

32 mm [±0,1 mm]

Height

18 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

42 g [±0,1 mm]

Load capacity ~ ?

34 kg / 333.43 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 universal accessories, applied across manufacturing and everyday uses, e.g. in storage facilities. They contain a neodymium magnet, typically neodymium, enclosed in a metal housing, covered with Zn layer for corrosion protection. The internal thread, ranging from M3 to M10, enables mounting screws, which simplifies installation of various items, such as signs, instruments, or lamps. They work via a powerful magnetic zone, that focuses in the contact area, ensuring holding force ranging from one to sixty kilograms, depending on mount size. They are especially useful in the automotive industry, e.g. for attaching car body components, as well as in advertising, for poster placement. Certain types come with a rubber shell, e.g. in black or yellow colors, which protects surfaces from scratches and increases resistance to dampness. Advantages cover great strength, simple mounting thanks to the thread, and the ability to transport heavy ferromagnetic objects. However, the holding force depends on surface thickness, type of steel, 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 magnetic zone may interfere with electronics, such as smartphones or magnetic cards, therefore mounts should be stored away from those devices. It is recommended to choose holders from reputable manufacturers, to guarantee reliability and safety during use.

Advantages and disadvantages of neodymium magnets NdFeB.

Apart from their notable power, neodymium magnets have these key benefits:

They retain their magnetic properties for almost 10 years – the loss is just ~1% (according to analyses),
They protect against demagnetization induced by external magnetic fields very well,
The use of a mirror-like silver surface provides a refined finish,
They exhibit elevated levels of magnetic induction near the outer area of the magnet,
With the right combination of magnetic alloys, they reach excellent thermal stability, enabling operation at or above 230°C (depending on the structure),
With the option for tailored forming and precise design, these magnets can be produced in multiple shapes and sizes, greatly improving engineering flexibility,
Important function in cutting-edge sectors – they serve a purpose in computer drives, electric motors, medical equipment as well as technologically developed systems,
Thanks to their concentrated strength, small magnets offer high magnetic performance, while occupying minimal space,

Disadvantages of rare earth magnets:

They are fragile when subjected to a strong impact. If the magnets are exposed to physical collisions, it is advisable to use in a steel housing. The steel housing, in the form of a holder, protects the magnet from cracks , and at the same time increases its overall strength,
High temperatures may significantly reduce the field efficiency of neodymium magnets. Typically, above 80°C, they experience permanent loss in performance (depending on shape). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
They rust in a moist environment. If exposed to rain, we recommend using waterproof magnets, such as those made of polymer,
Limited ability to create complex details in the magnet – the use of a housing is recommended,
Safety concern due to small fragments may arise, when consumed by mistake, which is crucial in the family environments. Additionally, miniature parts from these products might disrupt scanning once in the system,
High unit cost – neodymium magnets are pricier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Exercise Caution with Neodymium Magnets

Dust and powder from neodymium magnets are highly flammable.

Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.

Neodymium magnets are especially delicate, resulting in their breakage.

Neodymium magnets are highly 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.

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 will jump and clash together within a distance of several to almost 10 cm from each other.

Make sure not to bring neodymium magnets close to the TV, wallet, and computer HDD.

Strong magnetic fields emitted by neodymium magnets can destroy magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Neodymium magnets can become demagnetized at high temperatures.

Under specific conditions, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Neodymium magnets should not be around children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

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

Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional damage to the 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.

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!

So you are aware of why neodymium magnets are so dangerous, read the article titled How very dangerous are very strong neodymium magnets?.