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neodymium magnets

We provide blue color magnetic Nd2Fe14B - our store's offer. Practically all "neodymium magnets" in our store are available for immediate purchase (check the list). See the magnet price list for more details see the magnet price list

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NCM 20x13.5x5 / N38 - channel magnetic holder

channel magnetic holder

Catalog no 360487

GTIN: 5906301814863

5

Diameter Ø [±0,1 mm]

20 mm

Height [±0,1 mm]

13.5 mm

Weight

9.2 g

Magnetization Direction

↑ axial

Load capacity

8 kg / 78.45 N

Coating

[NiCuNi] nickel

7.29 with VAT / pcs + price for transport

5.93 ZŁ net + 23% VAT / pcs

bulk discounts:

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Specifications as well as appearance of neodymium magnets can be verified with our force calculator.

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NCM 20x13.5x5 / N38 - channel magnetic holder

Specification/characteristics NCM 20x13.5x5 / N38 - channel magnetic holder
properties
values
Cat. no.
360487
GTIN
5906301814863
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
20 mm [±0,1 mm]
Height
13.5 mm [±0,1 mm]
Weight
9.2 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
8 kg / 78.45 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
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

The openings in the mounting sheet allow for quick mounting onto a surface, allowing for a secure installation using screws, which also increases the versatility of application, e.g. in holders for tools or enclosures of machines.

Advantages as well as disadvantages of neodymium magnets NdFeB.

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

  • They have unchanged lifting capacity, and over around ten years their attraction force decreases symbolically – ~1% (according to theory),
  • Their ability to resist magnetic interference from external fields is impressive,
  • In other words, due to the metallic silver coating, the magnet obtains an professional appearance,
  • They have extremely strong magnetic induction on the surface 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 form),
  • The ability for precise shaping and adjustment to custom needs – neodymium magnets can be manufactured in many forms and dimensions, which enhances their versatility in applications,
  • Significant impact in modern technologies – they are utilized in data storage devices, electric motors, medical equipment or even high-tech tools,
  • Thanks to their power density, small magnets offer high magnetic performance, with minimal size,

Disadvantages of NdFeB magnets:

  • They are fragile when subjected to a strong impact. If the magnets are exposed to mechanical hits, they should be placed in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from fracture while also increases its overall robustness,
  • They lose field intensity at extreme temperatures. Most neodymium magnets experience permanent reduction in strength when heated above 80°C (depending on the form and height). However, we offer special variants with high temperature resistance that can operate up to 230°C or higher,
  • They rust in a moist environment, especially when used outside, we recommend using moisture-resistant magnets, such as those made of plastic,
  • Limited ability to create threads in the magnet – the use of a magnetic holder is recommended,
  • Potential hazard due to small fragments may arise, if ingested accidentally, which is crucial in the protection of children. Moreover, miniature parts from these magnets might interfere with diagnostics once in the system,
  • Due to the price of neodymium, their cost is above average,

Handle Neodymium Magnets with Caution

  Do not give neodymium magnets to 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.

Neodymium magnetic are highly delicate, they easily break and can crumble.

Neodymium magnetic are fragile and will break if allowed to collide with each other, even from a distance of a few centimeters. They are coated with a shiny nickel plating similar to steel, but they are not as hard. At the moment of collision between the magnets, tiny sharp metal fragments can be propelled in various directions at high speed. Eye protection is recommended.

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

Strong magnetic fields emitted by neodymium magnets can damage 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.

Although magnets have demonstrated their effectiveness up to 80°C or 175°F, the temperature can vary depending on the type, shape, and intended use of the specific magnet.

Neodymium magnets can attract to each other due to their immense internal force, causing the skin and other body parts to get pinched and resulting in significant injuries.

Neodymium magnets will jump and also contact together within a radius of several to around 10 cm from each other.

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

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

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

The magnet is coated with nickel - be careful 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.

Never bring neodymium magnets close to a phone and GPS.

Magnetic fields interfere with compasses and magnetometers used in navigation for air and sea transport, 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. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Caution!

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

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e-mail: bok@dhit.pl

tel: +48 888 99 98 98