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MW 6x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010092

GTIN/EAN: 5906301810919

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

0.42 g

Magnetization Direction

↑ axial

Load capacity

0.86 kg / 8.43 N

Magnetic Induction

343.37 mT / 3434 Gs

Coating

[NiCuNi] Nickel

view properties »

0.246 ZŁ with VAT / pcs + price for transport

0.200 ZŁ net + 23% VAT / pcs

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Specifications and structure of neodymium magnets can be analyzed on our online calculation tool.

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Technical of the product - MW 6x2 / N38 - cylindrical magnet

Specification / characteristics - MW 6x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010092
GTIN/EAN 5906301810919
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 6 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 0.42 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.86 kg / 8.43 N
Magnetic Induction ~ ? 343.37 mT / 3434 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x2 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
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

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 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical modeling of the assembly - technical parameters

The following data are the outcome of a mathematical calculation. Values rely on algorithms for the class Nd2Fe14B. Real-world parameters may deviate from the simulation results. Treat these data as a reference point for designers.

Table 1: Static pull force (pull vs gap) - power drop
MW 6x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3430 Gs
343.0 mT
 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
 safe
1 mm 2423 Gs
242.3 mT
 0.43 kg / 0.95 LBS
429.2 g / 4.2 N
 safe
2 mm 1521 Gs
152.1 mT
 0.17 kg / 0.37 LBS
169.0 g / 1.7 N
 safe
3 mm 932 Gs
93.2 mT
 0.06 kg / 0.14 LBS
63.5 g / 0.6 N
 safe
5 mm 382 Gs
38.2 mT
 0.01 kg / 0.02 LBS
10.7 g / 0.1 N
 safe
10 mm 76 Gs
7.6 mT
 0.00 kg / 0.00 LBS
0.4 g / 0.0 N
 safe
15 mm 26 Gs
2.6 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
20 mm 12 Gs
1.2 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
30 mm 4 Gs
0.4 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
50 mm 1 Gs
0.1 mT
 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
 safe
Pulling power weakens sharply with every subsequent millimeter of spacing. Remember that every additional insulation layer (e.g., dirt, paint, dust) noticeably diminishes the holding power. Magnetic products hold optimally during direct contact; distance drastically cuts the power. Notice how quickly the load capacity plummet, when the product does not adhere flatly to the metal substrate. When designing the arrangement, avoid unnecessary gaps.

Table 2: Vertical load (vertical surface)
MW 6x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.17 kg / 0.38 LBS
172.0 g / 1.7 N
1 mm Stal (~0.2) 0.09 kg / 0.19 LBS
86.0 g / 0.8 N
2 mm Stal (~0.2) 0.03 kg / 0.07 LBS
34.0 g / 0.3 N
3 mm Stal (~0.2) 0.01 kg / 0.03 LBS
12.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
The table below defines the approximate force needed to cause the slippage of the magnet downwards along a vertical steel wall (assuming standard friction coefficient). The holding force varies with the separation distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
MW 6x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.26 kg / 0.57 LBS
258.0 g / 2.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.17 kg / 0.38 LBS
172.0 g / 1.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.09 kg / 0.19 LBS
86.0 g / 0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.43 kg / 0.95 LBS
430.0 g / 4.2 N
When placing a element on a upright wall (e.g., a car body), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravity and a weak degree of grip cause that products move down faster than they pull off. Planning a hanger? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will give way down under a significantly smaller cargo. Utilizing a rubberized pad can drastically raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 6x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.09 kg / 0.19 LBS
86.0 g / 0.8 N
1 mm
25%
 0.22 kg / 0.47 LBS
215.0 g / 2.1 N
2 mm
50%
 0.43 kg / 0.95 LBS
430.0 g / 4.2 N
3 mm
75%
 0.65 kg / 1.42 LBS
645.0 g / 6.3 N
5 mm
100%
 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
10 mm
100%
 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
11 mm
100%
 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
12 mm
100%
 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
A thin sheet is incapable of conduct the full magnetic flux, which wastes potential of the magnet. If you mount a strong magnet to a too thin substrate, the flux will penetrate right through and the holding will be smaller. To squeeze full efficiency of this magnet's power, you need a suitably thick piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., car bodies), the product works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Working in heat (stability) - thermal limit
MW 6x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
 OK
40 °C -2.2% 0.84 kg / 1.85 LBS
841.1 g / 8.3 N
 OK
60 °C -4.4% 0.82 kg / 1.81 LBS
822.2 g / 8.1 N
80 °C -6.6% 0.80 kg / 1.77 LBS
803.2 g / 7.9 N
100 °C -28.8% 0.61 kg / 1.35 LBS
612.3 g / 6.0 N
Classic neodymiums irreversibly lose strength past the thermal threshold. Watch out for overheating – heat can permanently demagnetize this magnet. With increasing heat, the magnet's capacity briefly drops. Refrain from using this magnet in hot environments exceeding its working range. Ignoring the limit will result in destruction of magnetism.
*Technical advisory: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than long magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - forces in the system
MW 6x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.05 kg / 4.52 LBS
4 944 Gs
0.31 kg / 0.68 LBS
308 g / 3.0 N
 N/A
1 mm 1.52 kg / 3.34 LBS
5 900 Gs
0.23 kg / 0.50 LBS
228 g / 2.2 N
 1.37 kg / 3.01 LBS
~0 Gs
2 mm 1.02 kg / 2.26 LBS
4 847 Gs
0.15 kg / 0.34 LBS
154 g / 1.5 N
 0.92 kg / 2.03 LBS
~0 Gs
3 mm 0.65 kg / 1.44 LBS
3 869 Gs
0.10 kg / 0.22 LBS
98 g / 1.0 N
 0.59 kg / 1.29 LBS
~0 Gs
5 mm 0.25 kg / 0.54 LBS
2 379 Gs
0.04 kg / 0.08 LBS
37 g / 0.4 N
 0.22 kg / 0.49 LBS
~0 Gs
10 mm 0.03 kg / 0.06 LBS
764 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
 0.02 kg / 0.05 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
153 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
12 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
7 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
5 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.00 LBS
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
 0.00 kg / 0.00 LBS
~0 Gs
Two strong neodymiums attract each other from a significantly greater distance than a neodymium and metal setup. The connection of two magnets creates a more powerful interaction and a further horizon of operation. Designing a powerful holder? Apply two magnets instead of one magnet and a steel. Remember that when attracting two neodymiums, the collision energy is massive. The levitation is slightly lower than the attraction, but still significant.
*Field value for N-N configuration reaches ~0 Gs in the exact middle between the magnets (due to field cancellation).
Note: Estimates demonstrate friction force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - warnings
MW 6x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.0 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Car key 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
Extremely neodym field is a serious hazard to IT equipment and pacemakers. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Notice: the unseen radiation penetrates the body and plastic. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MW 6x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 45.65 km/h
(12.68 m/s)
 0.03 J
30 mm 79.04 km/h
(21.96 m/s)
 0.10 J
50 mm 102.04 km/h
(28.35 m/s)
 0.17 J
100 mm 144.31 km/h
(40.09 m/s)
 0.34 J
Neodymium magnets are delicate – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Striking energy can cause material chips or painful pinches to fingers. Be sure to control the product during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Corrosion resistance
MW 6x2 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 6x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 029 Mx 10.3 µWb
Pc Coefficient 0.44 Low (Flat)
Flux value emitted by the pole surface. Key data when building generators and motors. Pc value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MW 6x2 / N38

Environment Effective steel pull Effect
Air (land) 0.86 kg Standard
Water (riverbed) 0.98 kg
(+0.12 kg buoyancy gain)
+14.5%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.
1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains merely approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.

3. Thermal stability

*For standard magnets, the critical limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.44

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology
Elemental analysis
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
Sustainability
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010092-2026
Measurement Calculator
Force (pull)
Magnetic Field
Input a figure in a single slot to see the conversion for the other units at once.

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The presented product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, with dimensions of Ø6x2 mm, guarantees optimal power. The MW 6x2 / N38 model boasts a tolerance of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 0.86 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 8.43 N with a weight of only 0.42 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø6x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 6 mm and height 2 mm. The value of 8.43 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.42 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 2 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.

Pros as well as cons of rare earth magnets.

Strengths

Apart from their strong magnetic energy, neodymium magnets have these key benefits:
  • They do not lose strength, even during around 10 years – the reduction in strength is only ~1% (based on measurements),
  • Magnets effectively resist against demagnetization caused by foreign field sources,
  • A magnet with a metallic nickel surface has an effective appearance,
  • Magnets possess impressive magnetic induction on the surface,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • Possibility of accurate creating and modifying to individual applications,
  • Versatile presence in modern technologies – they serve a role in HDD drives, motor assemblies, medical equipment, as well as other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions

Weaknesses

Disadvantages of NdFeB magnets:
  • At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
  • Limited ability of making threads in the magnet and complicated forms - recommended is cover - magnet mounting.
  • Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that small components of these devices can complicate diagnosis medical when they are in the body.
  • Due to complex production process, their price is relatively high,

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

The force parameter is a theoretical maximum value performed under standard conditions:
  • using a plate made of low-carbon steel, acting as a circuit closing element
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with an polished contact surface
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction vertical to the mounting surface
  • at temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

Bear in mind that the magnet holding will differ influenced by elements below, starting with the most relevant:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Material composition – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
  • Base smoothness – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

H&S for magnets
Allergic reactions

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.

Keep away from computers

Do not bring magnets near a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.

Dust explosion hazard

Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this may cause fire.

Precision electronics

Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Health Danger

Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Powerful field

Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.

Protective goggles

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Swallowing risk

Always store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are life-threatening.

Pinching danger

Danger of trauma: The pulling power is so great that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Do not overheat magnets

Do not overheat. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, look for HT versions (H, SH, UH).

Danger! Details about risks in the article: Safety of working with magnets.