tel: +48 22 499 98 98

neodymium magnets

We provide red color magnets Nd2Fe14B - our proposal. All "neodymium magnets" in our store are available for immediate delivery (check the list). See the magnet price list for more details see the magnet price list

Magnets for searching F300 GOLD

Where to purchase powerful neodymium magnet? Magnetic holders in airtight, solid steel casing are ideally suited for use in difficult, demanding weather, including snow and rain more...

magnets with holders

Magnetic holders can be applied to facilitate manufacturing, underwater exploration, or finding space rocks from gold more information...

We promise to ship your order on the same day by 2:00 PM on weekdays.

Dhit sp. z o.o. logo
Product available shipping tomorrow

HH 16x5.3 [M3] / N38 - through hole magnetic holder

through hole magnetic holder

Catalog no 370480

GTIN: 5906301814900

5

Diameter Ø [±0,1 mm]

16 mm

Height [±0,1 mm]

5.3 mm

Weight

6.4 g

Magnetization Direction

↑ axial

Load capacity

4 kg / 39.23 N

Coating

[NiCuNi] nickel

3.32 with VAT / pcs + price for transport

2.70 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
2.70 ZŁ
3.32 ZŁ
price from 250 pcs
2.54 ZŁ
3.12 ZŁ
price from 600 pcs
2.38 ZŁ
2.92 ZŁ

Can't decide what to choose?

Pick up the phone and ask +48 888 99 98 98 or get in touch by means of our online form the contact section.
Force as well as shape of magnetic components can be tested using our force calculator.

Same-day processing for orders placed before 14:00.

HH 16x5.3 [M3] / N38 - through hole magnetic holder

Specification/characteristics HH 16x5.3 [M3] / N38 - through hole magnetic holder
properties
values
Cat. no.
370480
GTIN
5906301814900
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
16 mm [±0,1 mm]
Height
5.3 mm [±0,1 mm]
Weight
6.4 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
4 kg / 39.23 N
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

properties
values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
coercivity bHc ?
10.8-11.5
kOe
coercivity bHc ?
860-915
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.] ?
36-38
BH max MGOe
energy density [Min. - Max.] ?
287-303
BH max KJ/m
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.

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

  • They retain their magnetic properties for around ten years – the loss is just ~1% (based on simulations),
  • Their ability to resist magnetic interference from external fields is impressive,
  • The use of a decorative nickel surface provides a refined finish,
  • They have extremely strong magnetic induction on the surface of the magnet,
  • They are suitable for high-temperature applications, operating effectively at 230°C+ due to advanced heat resistance and form-specific properties,
  • With the option for tailored forming and personalized design, these magnets can be produced in various shapes and sizes, greatly improving design adaptation,
  • Significant impact in cutting-edge sectors – they find application in HDDs, electromechanical systems, diagnostic apparatus as well as sophisticated instruments,
  • Relatively small size with high magnetic force – neodymium magnets offer strong power in compact dimensions, which makes them ideal in compact constructions

Disadvantages of magnetic elements:

  • They can break when subjected to a strong impact. If the magnets are exposed to shocks, we recommend in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from fracture while also 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 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 wet environment – during outdoor use, we recommend using sealed magnets, such as those made of rubber,
  • Limited ability to create threads in the magnet – the use of a external casing is recommended,
  • Possible threat from tiny pieces may arise, especially if swallowed, which is crucial in the family environments. Furthermore, minuscule fragments from these magnets may hinder health screening when ingested,
  • Due to the price of neodymium, their cost is relatively high,

Detachment force of the magnet in optimal conditionswhat contributes to it?

The given lifting capacity of the magnet corresponds to the maximum lifting force, measured under optimal conditions, specifically:

  • with the use of low-carbon steel plate acting as a magnetic yoke
  • of a thickness of at least 10 mm
  • with a refined outer layer
  • with no separation
  • in a perpendicular direction of force
  • in normal thermal conditions

Lifting capacity in real conditions – factors

In practice, the holding capacity of a magnet is conditioned by the following aspects, from crucial to less important:

  • Air gap between the magnet and the plate, because even a very small distance (e.g. 0.5 mm) can cause a drop in lifting force of up to 50%.
  • Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
  • Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
  • Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
  • Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
  • Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.

* Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. In addition, even a small distance {between} the magnet’s surface and the plate lowers the load capacity.

Exercise Caution with Neodymium Magnets

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

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

Keep neodymium magnets away from people with pacemakers.

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.

Neodymium magnets are the most powerful magnets ever created, and their power can shock you.

Familiarize yourself with our information to properly 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 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 as far away as possible from 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.

Magnets made of neodymium are especially delicate, resulting in shattering.

Neodymium magnets are characterized by considerable fragility. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. At the moment of connection between the magnets, sharp metal fragments can be dispersed in different directions.

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.

Dust and powder from neodymium magnets are highly 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 can attract to each other, pinch the skin, and cause significant swellings.

Neodymium magnets will jump and touch together within a distance of several to around 10 cm from each other.

 It is important to maintain neodymium magnets away from children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In the case of small magnets, they can be swallowed and cause choking. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Caution!

To show why neodymium magnets are so dangerous, see the article - How dangerous are very strong neodymium magnets?.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98