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neodymium magnets

We offer yellow color magnets Nd2Fe14B - our proposal. Practically all "magnets" on our website are available for immediate delivery (check the list). Check out the magnet price list for more details check the magnet price list

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MW 6x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010094

GTIN: 5906301810933

5

Diameter Ø [±0,1 mm]

6 mm

Height [±0,1 mm]

6 mm

Weight

1.27 g

Magnetization Direction

↑ axial

Load capacity

1.99 kg / 19.52 N

Magnetic Induction

553.38 mT

Coating

[NiCuNi] nickel

0.677 with VAT / pcs + price for transport

0.550 ZŁ net + 23% VAT / pcs

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MW 6x6 / N38 - cylindrical magnet
Specification/characteristics MW 6x6 / N38 - cylindrical magnet
properties
values
Cat. no.
010094
GTIN
5906301810933
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
6 mm [±0,1 mm]
Height
6 mm [±0,1 mm]
Weight
1.27 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
1.99 kg / 19.52 N
Magnetic Induction ~ ?
553.38 mT
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 sintered neodymium magnets Nd2Fe14B at 20°C

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

This product is a very strong rod magnet, manufactured from durable NdFeB material, which, with dimensions of Ø6x6 mm, guarantees the highest energy density. This specific item features high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 1.99 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 19.52 N with a weight of only 1.27 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø6x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
This model is characterized by dimensions Ø6x6 mm, which, at a weight of 1.27 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 1.99 kg (force ~19.52 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 6 mm), which means that the N and S poles are located on the flat, circular surfaces. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths as well as weaknesses of NdFeB magnets.

In addition to their pulling strength, neodymium magnets provide the following advantages:

  • They retain full power for nearly 10 years – the loss is just ~1% (in theory),
  • They retain their magnetic properties even under external field action,
  • By using a decorative layer of gold, the element gains an nice look,
  • They feature high magnetic induction at the operating surface, which affects their effectiveness,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • In view of the potential of precise forming and adaptation to specialized projects, neodymium magnets can be created in a broad palette of geometric configurations, which amplifies use scope,
  • Fundamental importance in innovative solutions – they are used in data components, brushless drives, precision medical tools, as well as technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

What to avoid - cons of neodymium magnets: tips and applications.

  • Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
  • We suggest casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
  • Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small elements of these magnets can complicate diagnosis medical in case of swallowing.
  • With mass production the cost of neodymium magnets is economically unviable,

Detachment force of the magnet in optimal conditionswhat affects it?

The force parameter is a result of laboratory testing performed under the following configuration:

  • with the use of a sheet made of special test steel, ensuring maximum field concentration
  • with a cross-section minimum 10 mm
  • characterized by smoothness
  • without any air gap between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • at temperature approx. 20 degrees Celsius

Practical lifting capacity: influencing factors

Real force is influenced by specific conditions, including (from most important):

  • Distance (betwixt the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
  • Direction of force – highest force is reached only during perpendicular pulling. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Material composition – different alloys attracts identically. Alloy additives worsen the interaction with the magnet.
  • Smoothness – full contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
  • Temperature – temperature increase causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

* Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied 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.

H&S for magnets

Sensitization to coating

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, cease working with magnets and use protective gear.

Danger to pacemakers

Patients with a heart stimulator have to keep an large gap from magnets. The magnetism can stop the operation of the life-saving device.

Choking Hazard

Absolutely store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are fatal.

Data carriers

Device Safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, timepieces).

Pinching danger

Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Be careful!

Magnet fragility

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Collision of two magnets leads to them cracking into shards.

Keep away from electronics

A powerful magnetic field disrupts the functioning of compasses in smartphones and GPS navigation. Do not bring magnets near a device to avoid damaging the sensors.

Flammability

Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Respect the power

Before starting, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Heat warning

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its magnetic structure and strength.

Warning!

Want to know more? Read our article: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98