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UMP 65x45 [M8]x2 GW F230+ Lina / N38 - search holder

search holder

Catalog no 210386

GTIN: 5906301814054

Diameter Ø [±0,1 mm]

65 mm

Height [±0,1 mm]

45 mm

Weight

1170 g

Load capacity

230 kg / 2255.53 N

Coating

[NiCuNi] nickel

180.00 ZŁ with VAT / pcs + price for transport

146.34 ZŁ net + 23% VAT / pcs

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UMP 65x45 [M8]x2 GW F230+ Lina / N38 - search holder

Specification/characteristics UMP 65x45 [M8]x2 GW F230+ Lina / N38 - search holder

properties

values

Cat. no.

210386

GTIN

5906301814054

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

65 mm [±0,1 mm]

Height

45 mm [±0,1 mm]

Weight

1170 g [±0,1 mm]

Load capacity ~ ?

230 kg / 2255.53 N

Coating

[NiCuNi] nickel

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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For exploring rivers and lakes, we recommend UMP 65x45 [M8]x2 GW F230+ Lina / N38, which is exceptionally strong and has an impressive magnetic pulling force of approximately ~230 kg. This model is perfect for locating metal objects at the bottom of water bodies.

Neodymium magnets are highly effective for searching in water due to their high lifting force. UMP 65x45 [M8]x2 GW F230+ Lina / N38 weighing 1170 grams with a pulling force of ~230 kg is a perfect solution for finding metallic findings.

When choosing a magnetic holder for water exploration, you should pay attention to the number of Gauss or Tesla value, which determines the attraction strength. UMP 65x45 [M8]x2 GW F230+ Lina / N38 has a pulling force of approximately ~230 kg, making it a effective solution for recovering objects with significant mass. Remember that the maximum strength is achieved with the upper holder, while the side attachment offers only 10%-25% of that power.

The sliding force of a magnetic holder is typically lower than the adhesive force because it depends on the fraction of the magnetic field that interacts with the metal surface. In the case of UMP 65x45 [M8]x2 GW F230+ Lina / N38 with a pulling force of ~230 kg, maximum power are achieved with the upper holder, while the side attachment offers only one-fourth to one-quarter of the stated power.

he Lifting force was measured under laboratory conditions, using a smooth S235 low-carbon steel plate with a thickness of 10 mm, with the application of lifting force in a vertical manner. In a situation where the force acts parallelly, the magnet's lifting capacity can be 5 times lower! Any gap between the magnet and the plate can cause a reduction in the attraction force.

magnetic pot strength F200 GOLD F300 GOLD

Advantages and disadvantages of neodymium magnets NdFeB.

Besides their durability, neodymium magnets are valued for these benefits:

They retain their attractive force for almost ten years – the drop is just ~1% (in theory),
They are extremely resistant to demagnetization caused by external field interference,
Thanks to the polished finish and nickel coating, they have an aesthetic appearance,
Magnetic induction on the surface of these magnets is notably high,
These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to profile),
The ability for accurate shaping and adaptation to specific needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which enhances their versatility in applications,
Wide application in new technology industries – they serve a purpose in hard drives, electromechanical systems, diagnostic apparatus along with technologically developed systems,
Thanks to their concentrated strength, small magnets offer high magnetic performance, in miniature format,

Disadvantages of magnetic elements:

They are prone to breaking when subjected to a strong impact. If the magnets are exposed to mechanical hits, they should be placed in a metal holder. The steel housing, in the form of a holder, protects the magnet from fracture and additionally strengthens its overall strength,
High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent decline in performance (depending on form). 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,
Magnets exposed to damp air can degrade. Therefore, for outdoor applications, it's best to use waterproof types made of coated materials,
Limited ability to create complex details in the magnet – the use of a mechanical support is recommended,
Possible threat due to small fragments may arise, in case of ingestion, which is notable in the health of young users. Furthermore, small elements from these magnets may complicate medical imaging if inside the body,
Higher purchase price is one of the drawbacks compared to ceramic magnets, especially in budget-sensitive applications

Precautions

Under no circumstances should neodymium magnets be brought 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.

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 away from 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.

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

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

Neodymium magnets are extremely fragile, resulting in shattering.

Magnets made of neodymium are highly fragile, and by joining them in an uncontrolled manner, they will break. Neodymium magnetic are made of metal and coated with a shiny nickel, but they are not as durable as steel. At the moment of collision between the magnets, small metal fragments can be dispersed in different directions.

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 will 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 they attract. Depending on how large the neodymium magnets are, they can lead to a cut or a fracture.

The magnet coating is made of nickel, so be cautious if you have an 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets are over 10 times more powerful than ferrite magnets (the ones in speakers), and their strength 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.

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.

Neodymium magnets should not be in the vicinity children.

Remember that 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.

Caution!

In order to show why neodymium magnets are so dangerous, read the article - How dangerous are strong neodymium magnets?.