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UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

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UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180420

GTIN: 5906301813798

Diameter Ø [±0,1 mm]

75 mm

Height [±0,1 mm]

33 mm

Height [±0,1 mm]

18 mm

Weight

475 g

Load capacity

162 kg / 1588.68 N

189.91 ZŁ with VAT / pcs + price for transport

154.40 ZŁ net + 23% VAT / pcs

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UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

Specification/characteristics UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

properties

values

Cat. no.

180420

GTIN

5906301813798

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

75 mm [±0,1 mm]

Height

33 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

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 featuring internal thread can be versatile accessories, applied across industrial as well as household uses, e.g. in construction. They contain a magnet, usually NdFeB, enclosed within a metal shell, covered with zinc to prevent rusting. The female thread, ranging from M3 to M10, enables mounting bolts, which simplifies assembly of various components, such as signs, instruments, or lights. They operate thanks to a powerful magnetic zone, that focuses at the mounting point, providing load capacity from 1.3 kg to 60 kg, based on mounting dimensions. These are particularly helpful in vehicle manufacturing, for example, for securing body panels, and also 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 cover great strength, simple mounting due to the internal threading, as well as the option to move massive steel components. Still, the holding force depends on surface thickness, material used, 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. Moreover, a strong magnetic field may affect electronic devices, like phones or data carriers, so holders should be kept away from such equipment. It is recommended to choose holders from reputable manufacturers, to ensure high quality and safe use during operation.

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to their remarkable pulling force, neodymium magnets offer the following advantages:

They have stable power, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
They are very resistant to demagnetization caused by external magnetic sources,
By applying a reflective layer of silver, the element gains a sleek look,
Magnetic induction on the surface of these magnets is very strong,
With the right combination of materials, they reach significant thermal stability, enabling operation at or above 230°C (depending on the structure),
With the option for fine forming and personalized design, these magnets can be produced in various shapes and sizes, greatly improving design adaptation,
Wide application in advanced technical fields – they find application in data storage devices, rotating machines, clinical machines as well as other advanced devices,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in small dimensions, which makes them useful in compact constructions

Disadvantages of neodymium magnets:

They may fracture when subjected to a strong impact. If the magnets are exposed to shocks, it is advisable to use in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from fracture , and at the same time strengthens its overall strength,
Magnets lose field strength when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible performance loss (influenced by the magnet’s profile). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
They rust in a moist environment. If exposed to rain, we recommend using sealed magnets, such as those made of plastic,
Using a cover – such as a magnetic holder – is advised due to the limitations in manufacturing fine shapes directly in the magnet,
Potential hazard due to small fragments may arise, especially if swallowed, which is notable in the protection of children. Furthermore, minuscule fragments from these magnets may hinder health screening when ingested,
Higher purchase price is one of the drawbacks compared to ceramic magnets, especially in budget-sensitive applications

Caution with Neodymium Magnets

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

Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.

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

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. They can also damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.

Magnets made of neodymium are delicate as well as can easily break and get damaged.

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, small sharp metal pieces can be propelled in various directions at high speed. Eye protection is recommended.

It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.

In the case of placing a finger in the path of a neodymium magnet, in that situation, a cut or even a fracture may occur.

Keep neodymium magnets as far away as possible from 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.

Neodymium magnets can demagnetize at high temperatures.

In certain circumstances, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

If you have a nickel allergy, avoid contact with neodymium magnets.

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.

Keep neodymium magnets away from youngest children.

Remember that neodymium magnets are not toys. Do not allow children to play 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.

People with pacemakers are advised to avoid neodymium magnets.

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.

Warning!

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