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neodymium magnets

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UMGB 75x28 [M10x3] GW F200 PLATINIUM + Lina GOBLIN / N52 - goblin magnetic holder

goblin magnetic holder

Catalog no 350441

GTIN: 5906301814832

5

Diameter Ø [±0,1 mm]

75 mm

Height [±0,1 mm]

28 mm

Weight

900 g

Magnetization Direction

↑ axial

Load capacity

365 kg / 3579.43 N

Coating

[NiCuNi] nickel

280.00 with VAT / pcs + price for transport

227.64 ZŁ net + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
227.64 ZŁ
280.00 ZŁ
price from 5 pcs
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price from 80 pcs
200.32 ZŁ
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Parameters along with form of a neodymium magnet can be verified using our magnetic calculator.

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UMGB 75x28 [M10x3] GW F200 PLATINIUM + Lina GOBLIN / N52 - goblin magnetic holder

Specification/characteristics UMGB 75x28 [M10x3] GW F200 PLATINIUM + Lina GOBLIN / N52 - goblin magnetic holder
properties
values
Cat. no.
350441
GTIN
5906301814832
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
75 mm [±0,1 mm]
Height
28 mm [±0,1 mm]
Weight
900 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
365 kg / 3579.43 N
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N52

properties
values
units
coercivity bHc ?
860-995
kA/m
coercivity bHc ?
10.8-12.5
kOe
energy density [Min. - Max.] ?
380-422
BH max KJ/m
energy density [Min. - Max.] ?
48-53
BH max MGOe
remenance Br [Min. - Max.] ?
14.2-14.7
kGs
remenance Br [Min. - Max.] ?
1420-1470
T
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
Hv
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

Shopping tips

Advantages and disadvantages of neodymium magnets NdFeB.

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

  • Their power is maintained, and after approximately 10 years, it drops only by ~1% (theoretically),
  • They are extremely resistant to demagnetization caused by external magnetic fields,
  • Because of the lustrous layer of nickel, the component looks aesthetically refined,
  • They possess strong magnetic force measurable at the magnet’s surface,
  • Thanks to their exceptional temperature resistance, they can operate (depending on the shape) even at temperatures up to 230°C or more,
  • Thanks to the freedom in shaping and the capability to adapt to individual requirements, neodymium magnets can be created in various configurations, which increases their functional possibilities,
  • Wide application in cutting-edge sectors – they serve a purpose in computer drives, electric drives, clinical machines or even other advanced devices,
  • Relatively small size with high magnetic force – neodymium magnets offer strong power in compact dimensions, which makes them ideal in miniature devices

Disadvantages of NdFeB magnets:

  • They are prone to breaking when subjected to a heavy 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 damage , and at the same time reinforces its overall durability,
  • Magnets lose magnetic efficiency when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible power drop (influenced by the magnet’s form). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
  • Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of protective material for outdoor use,
  • The use of a protective casing or external holder is recommended, since machining threads in neodymium magnets is restricted,
  • Health risk due to small fragments may arise, if ingested accidentally, which is notable in the health of young users. Moreover, tiny components from these assemblies can hinder health screening when ingested,
  • In cases of mass production, neodymium magnet cost may be a barrier,

Caution with Neodymium Magnets

Keep neodymium magnets away from GPS and smartphones.

Neodymium magnets are a source of intense magnetic fields that cause interference with magnetometers and compasses used in navigation, as well as internal compasses of smartphones and GPS devices.

 It is important to keep neodymium magnets away from youngest children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. 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.

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

The strong magnetic field generated by neodymium magnets can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also damage devices like video players, televisions, CRT computer monitors. Remember not to place neodymium magnets close to these electronic devices.

Neodymium magnetic are highly fragile, they easily crack as well as can crumble.

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

Neodymium magnets are the most powerful magnets ever invented. Their power can surprise you.

Familiarize yourself with our information to correctly handle these magnets and avoid significant injuries to your body and prevent disruption to the magnets.

Neodymium magnets can demagnetize at high temperatures.

Although magnets are generally resilient, their ability to maintain their magnetic potency can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

Dust and powder from neodymium magnets are highly flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. Once crushed into fine powder or dust, this material becomes highly flammable.

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

Magnets attract each other within a distance of several to about 10 cm from each other. Remember not to insert fingers between magnets or in their path when they attract. Magnets, depending on their size, can even cut off a finger or there can be a significant pressure or even a fracture.

People with pacemakers are advised to avoid neodymium magnets.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. However, if the magnetic field does not affect the device, it can damage its components or deactivate the device when it is in a magnetic field.

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

Be careful!

To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are very strong neodymium magnets?.

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