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MW 6x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010092

GTIN/EAN: 5906301810919

5.00
Load capacity 0.86 kg / 8.43 N Magnetic Induction 343.37 mT / 3434 Gs
Diameter Ø
6 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
0.42 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

0.246 with VAT / pcs + price for transport

0.200 zł net + 23% VAT / pcs

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Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Physical properties - 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

Physical simulation of the product - data

The following values constitute the result of a engineering calculation. Results were calculated on algorithms for the class Nd2Fe14B. Actual performance might slightly differ from theoretical values. Please consider these calculations as a reference point during assembly planning.

Table 1: Static pull force (force vs gap) - characteristics
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
weak grip
1 mm 2423 Gs
242.3 mT
0.43 kg / 0.95 lbs
429.2 g / 4.2 N
weak grip
2 mm 1521 Gs
152.1 mT
0.17 kg / 0.37 lbs
169.0 g / 1.7 N
weak grip
3 mm 932 Gs
93.2 mT
0.06 kg / 0.14 lbs
63.5 g / 0.6 N
weak grip
5 mm 382 Gs
38.2 mT
0.01 kg / 0.02 lbs
10.7 g / 0.1 N
weak grip
10 mm 76 Gs
7.6 mT
0.00 kg / 0.00 lbs
0.4 g / 0.0 N
weak grip
15 mm 26 Gs
2.6 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip
20 mm 12 Gs
1.2 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip
30 mm 4 Gs
0.4 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip

Table 2: Vertical force (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

Table 3: Vertical assembly (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

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

Table 5: Thermal resistance (material behavior) - 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

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 6x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral 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

Table 7: Hazards (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
Remote 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

Table 8: Dynamics (kinetic energy) - warning
MW 6x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.83 km/h
(7.17 m/s)
0.01 J
30 mm 25.84 km/h
(7.18 m/s)
0.01 J
50 mm 25.84 km/h
(7.18 m/s)
0.01 J
100 mm 25.84 km/h
(7.18 m/s)
0.01 J

Table 9: Surface protection spec
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)

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

Parameter Value SI Unit / Description
Magnetic Flux 1 029 Mx 10.3 µWb
Pc Coefficient 0.44 Low (Flat)

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%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

1. Vertical hold

*Note: On a vertical wall, the magnet holds merely a fraction of its nominal pull.

2. Steel thickness impact

*Thin steel (e.g. computer case) significantly reduces the holding force.

3. Thermal stability

*For N38 material, 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

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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 and environmental data

Material specification

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%

Ecology and recycling (GPSR)

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
Magnet Unit Converter

Pulling force


Magnetic Induction

Other deals

The presented product is an exceptionally strong rod magnet, composed of advanced NdFeB material, which, at dimensions of Ø6x2 mm, guarantees the highest energy density. The MW 6x2 / N38 component boasts an accuracy 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 lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 8.43 N with a weight of only 0.42 g, this rod is indispensable in electronics and wherever every gram matters.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 6.1 mm) using epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are strong enough for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø6x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 6 mm and height 2 mm. The key parameter here is the holding force amounting to approximately 0.86 kg (force ~8.43 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 6 mm. Such an arrangement is most desirable 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.

Advantages and disadvantages of neodymium magnets.

Benefits

Besides their remarkable magnetic power, neodymium magnets offer the following advantages:
  • They have unchanged lifting capacity, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
  • They have excellent resistance to weakening of magnetic properties when exposed to external fields,
  • A magnet with a shiny gold surface looks better,
  • Neodymium magnets deliver maximum magnetic induction on a small area, which ensures high operational effectiveness,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Due to the option of flexible forming and adaptation to individualized solutions, neodymium magnets can be modeled in a variety of shapes and sizes, which increases their versatility,
  • Versatile presence in high-tech industry – they are used in computer drives, motor assemblies, medical equipment, also other advanced devices.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of neodymium magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing nuts and complex forms in magnets, we recommend using a housing - magnetic holder.
  • Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. Additionally, small components of these products can complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Optimal lifting capacity of a neodymium magnetwhat contributes to it?

The force parameter is a result of laboratory testing conducted under standard conditions:
  • using a sheet made of mild steel, functioning as a circuit closing element
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with an ideally smooth touching surface
  • with direct contact (without impurities)
  • under axial force direction (90-degree angle)
  • at room temperature

What influences lifting capacity in practice

Holding efficiency impacted by working environment parameters, mainly (from most important):
  • Air gap (between the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
  • Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Plate material – mild steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
  • Surface condition – smooth surfaces ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was measured using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets
Medical interference

Individuals with a heart stimulator have to keep an absolute distance from magnets. The magnetism can stop the functioning of the life-saving device.

Skin irritation risks

Certain individuals suffer from a sensitization to Ni, which is the typical protective layer for neodymium magnets. Extended handling may cause a rash. We strongly advise wear safety gloves.

Heat warning

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Serious injuries

Large magnets can break fingers instantly. Do not put your hand between two strong magnets.

No play value

Neodymium magnets are not suitable for play. Eating several magnets may result in them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.

Fragile material

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Dust explosion hazard

Dust generated during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Caution required

Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.

Magnetic media

Avoid bringing magnets near a purse, computer, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

GPS and phone interference

A powerful magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Maintain magnets close to a device to prevent breaking the sensors.

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