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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

0.246 with VAT / pcs + price for transport

0.200 ZŁ net + 23% VAT / pcs

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Technical specification 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

Engineering modeling of the product - report

The following information are the direct effect of a engineering calculation. Results were calculated on models for the class Nd2Fe14B. Actual parameters may differ from theoretical values. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MW 6x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 3430 Gs
343.0 mT
0.86 kg / 860.0 g
8.4 N
safe
1 mm 2423 Gs
242.3 mT
0.43 kg / 429.2 g
4.2 N
safe
2 mm 1521 Gs
152.1 mT
0.17 kg / 169.0 g
1.7 N
safe
3 mm 932 Gs
93.2 mT
0.06 kg / 63.5 g
0.6 N
safe
5 mm 382 Gs
38.2 mT
0.01 kg / 10.7 g
0.1 N
safe
10 mm 76 Gs
7.6 mT
0.00 kg / 0.4 g
0.0 N
safe
15 mm 26 Gs
2.6 mT
0.00 kg / 0.0 g
0.0 N
safe
20 mm 12 Gs
1.2 mT
0.00 kg / 0.0 g
0.0 N
safe
30 mm 4 Gs
0.4 mT
0.00 kg / 0.0 g
0.0 N
safe
50 mm 1 Gs
0.1 mT
0.00 kg / 0.0 g
0.0 N
safe

Table 2: Sliding capacity (wall)
MW 6x2 / N38

Distance (mm) Friction coefficient Pull Force (kg)
0 mm Stal (~0.2) 0.17 kg / 172.0 g
1.7 N
1 mm Stal (~0.2) 0.09 kg / 86.0 g
0.8 N
2 mm Stal (~0.2) 0.03 kg / 34.0 g
0.3 N
3 mm Stal (~0.2) 0.01 kg / 12.0 g
0.1 N
5 mm Stal (~0.2) 0.00 kg / 2.0 g
0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 6x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.26 kg / 258.0 g
2.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.17 kg / 172.0 g
1.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.09 kg / 86.0 g
0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.43 kg / 430.0 g
4.2 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 6x2 / N38

Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.09 kg / 86.0 g
0.8 N
1 mm
25%
0.22 kg / 215.0 g
2.1 N
2 mm
50%
0.43 kg / 430.0 g
4.2 N
5 mm
100%
0.86 kg / 860.0 g
8.4 N
10 mm
100%
0.86 kg / 860.0 g
8.4 N

Table 5: Thermal resistance (material behavior) - power drop
MW 6x2 / N38

Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 0.86 kg / 860.0 g
8.4 N
OK
40 °C -2.2% 0.84 kg / 841.1 g
8.3 N
OK
60 °C -4.4% 0.82 kg / 822.2 g
8.1 N
80 °C -6.6% 0.80 kg / 803.2 g
7.9 N
100 °C -28.8% 0.61 kg / 612.3 g
6.0 N

Table 6: Two magnets (attraction) - field collision
MW 6x2 / N38

Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 2.05 kg / 2051 g
20.1 N
4 944 Gs
N/A
1 mm 1.52 kg / 1517 g
14.9 N
5 900 Gs
1.37 kg / 1365 g
13.4 N
~0 Gs
2 mm 1.02 kg / 1024 g
10.0 N
4 847 Gs
0.92 kg / 921 g
9.0 N
~0 Gs
3 mm 0.65 kg / 652 g
6.4 N
3 869 Gs
0.59 kg / 587 g
5.8 N
~0 Gs
5 mm 0.25 kg / 247 g
2.4 N
2 379 Gs
0.22 kg / 222 g
2.2 N
~0 Gs
10 mm 0.03 kg / 25 g
0.2 N
764 Gs
0.02 kg / 23 g
0.2 N
~0 Gs
20 mm 0.00 kg / 1 g
0.0 N
153 Gs
0.00 kg / 0 g
0.0 N
~0 Gs
50 mm 0.00 kg / 0 g
0.0 N
12 Gs
0.00 kg / 0 g
0.0 N
~0 Gs

Table 7: Safety (HSE) (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
Timepiece 20 Gs (2.0 mT) 2.0 cm
Mobile device 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: 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

Table 9: Anti-corrosion coating durability
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: Underwater work (magnet fishing)
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

*Warning: On a vertical surface, the magnet retains just ~20% of its perpendicular strength.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically weakens the holding force.

3. Temperature resistance

*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%
Environmental data
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: 010092-2025
Magnet Unit Converter
Magnet pull force

Field Strength

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The offered product is an incredibly powerful cylinder magnet, produced from modern NdFeB material, which, with dimensions of Ø6x2 mm, guarantees maximum efficiency. This specific item features high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 0.86 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating shields 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 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 rod is indispensable in miniature devices 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 long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are suitable for the majority 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 (Ø6x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø6x2 mm, which, at a weight of 0.42 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity 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 oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 2 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Strengths

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They have unchanged lifting capacity, and over around ten years their performance decreases symbolically – ~1% (in testing),
  • Neodymium magnets are highly resistant to loss of magnetic properties caused by external magnetic fields,
  • Thanks to the elegant finish, the surface of Ni-Cu-Ni, gold, or silver gives an visually attractive appearance,
  • The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to freedom in shaping and the ability to modify to unusual requirements,
  • Fundamental importance in future technologies – they find application in magnetic memories, electric drive systems, precision medical tools, and multitasking production systems.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Weaknesses

Drawbacks and weaknesses of neodymium magnets: application proposals
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complex forms in magnets, we propose using casing - magnetic mechanism.
  • Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets are able to be problematic in diagnostics medical in case of swallowing.
  • With large orders the cost of neodymium magnets can be a barrier,

Pull force analysis

Highest magnetic holding forcewhat it depends on?

The specified lifting capacity concerns the peak performance, obtained under optimal environment, namely:
  • using a sheet made of low-carbon steel, serving as a ideal flux conductor
  • whose thickness is min. 10 mm
  • with a surface cleaned and smooth
  • without the slightest clearance between the magnet and steel
  • under perpendicular application of breakaway force (90-degree angle)
  • in stable room temperature

Practical aspects of lifting capacity – factors

In practice, the actual lifting capacity depends on a number of factors, ranked from the most important:
  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Steel grade – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
  • Smoothness – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was assessed by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet and the plate reduces the holding force.

Warnings
Metal Allergy

Studies show that nickel (standard magnet coating) is a strong allergen. If you have an allergy, avoid direct skin contact and select encased magnets.

Material brittleness

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Collision of two magnets will cause them cracking into shards.

Medical implants

Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.

Thermal limits

Watch the temperature. Exposing the magnet to high heat will ruin its properties and pulling force.

Danger to the youngest

Strictly keep magnets away from children. Choking hazard is high, and the consequences of magnets clamping inside the body are very dangerous.

Phone sensors

A strong magnetic field interferes with the operation of compasses in smartphones and navigation systems. Keep magnets near a device to avoid damaging the sensors.

Pinching danger

Large magnets can crush fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.

Threat to electronics

Intense magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Stay away of min. 10 cm.

Dust is flammable

Machining of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Immense force

Handle magnets with awareness. Their powerful strength can shock even professionals. Be vigilant and do not underestimate their force.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98