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MW 6x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010094

GTIN/EAN: 5906301810933

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

1.27 g

Magnetization Direction

↑ axial

Load capacity

1.14 kg / 11.18 N

Magnetic Induction

553.38 mT / 5534 Gs

Coating

[NiCuNi] Nickel

0.677 with VAT / pcs + price for transport

0.550 ZŁ net + 23% VAT / pcs

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Technical specification - MW 6x6 / N38 - cylindrical magnet

Specification / characteristics - MW 6x6 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010094
GTIN/EAN 5906301810933
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 6 mm [±0,1 mm]
Weight 1.27 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.14 kg / 11.18 N
Magnetic Induction ~ ? 553.38 mT / 5534 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x6 / 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 simulation of the product - technical parameters

These information are the result of a engineering simulation. Results are based on algorithms for the material Nd2Fe14B. Real-world performance may differ from theoretical values. Use these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - interaction chart
MW 6x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5527 Gs
552.7 mT
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
weak grip
1 mm 3738 Gs
373.8 mT
0.52 kg / 1.15 pounds
521.5 g / 5.1 N
weak grip
2 mm 2366 Gs
236.6 mT
0.21 kg / 0.46 pounds
209.0 g / 2.0 N
weak grip
3 mm 1498 Gs
149.8 mT
0.08 kg / 0.18 pounds
83.7 g / 0.8 N
weak grip
5 mm 665 Gs
66.5 mT
0.02 kg / 0.04 pounds
16.5 g / 0.2 N
weak grip
10 mm 155 Gs
15.5 mT
0.00 kg / 0.00 pounds
0.9 g / 0.0 N
weak grip
15 mm 58 Gs
5.8 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
weak grip
20 mm 28 Gs
2.8 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
30 mm 9 Gs
0.9 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
50 mm 2 Gs
0.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Sliding capacity (vertical surface)
MW 6x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.23 kg / 0.50 pounds
228.0 g / 2.2 N
1 mm Stal (~0.2) 0.10 kg / 0.23 pounds
104.0 g / 1.0 N
2 mm Stal (~0.2) 0.04 kg / 0.09 pounds
42.0 g / 0.4 N
3 mm Stal (~0.2) 0.02 kg / 0.04 pounds
16.0 g / 0.2 N
5 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N

Table 3: Wall mounting (shearing) - vertical pull
MW 6x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.34 kg / 0.75 pounds
342.0 g / 3.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.23 kg / 0.50 pounds
228.0 g / 2.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.11 kg / 0.25 pounds
114.0 g / 1.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.57 kg / 1.26 pounds
570.0 g / 5.6 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 6x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.11 kg / 0.25 pounds
114.0 g / 1.1 N
1 mm
25%
0.29 kg / 0.63 pounds
285.0 g / 2.8 N
2 mm
50%
0.57 kg / 1.26 pounds
570.0 g / 5.6 N
3 mm
75%
0.86 kg / 1.88 pounds
855.0 g / 8.4 N
5 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
10 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
11 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
12 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N

Table 5: Thermal resistance (material behavior) - thermal limit
MW 6x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
OK
40 °C -2.2% 1.11 kg / 2.46 pounds
1114.9 g / 10.9 N
OK
60 °C -4.4% 1.09 kg / 2.40 pounds
1089.8 g / 10.7 N
OK
80 °C -6.6% 1.06 kg / 2.35 pounds
1064.8 g / 10.4 N
100 °C -28.8% 0.81 kg / 1.79 pounds
811.7 g / 8.0 N

Table 6: Two magnets (repulsion) - field range
MW 6x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 5.32 kg / 11.74 pounds
5 995 Gs
0.80 kg / 1.76 pounds
799 g / 7.8 N
N/A
1 mm 3.70 kg / 8.17 pounds
9 220 Gs
0.56 kg / 1.23 pounds
556 g / 5.5 N
3.33 kg / 7.35 pounds
~0 Gs
2 mm 2.44 kg / 5.37 pounds
7 476 Gs
0.37 kg / 0.81 pounds
365 g / 3.6 N
2.19 kg / 4.83 pounds
~0 Gs
3 mm 1.55 kg / 3.42 pounds
5 968 Gs
0.23 kg / 0.51 pounds
233 g / 2.3 N
1.40 kg / 3.08 pounds
~0 Gs
5 mm 0.61 kg / 1.35 pounds
3 755 Gs
0.09 kg / 0.20 pounds
92 g / 0.9 N
0.55 kg / 1.22 pounds
~0 Gs
10 mm 0.08 kg / 0.17 pounds
1 330 Gs
0.01 kg / 0.03 pounds
12 g / 0.1 N
0.07 kg / 0.15 pounds
~0 Gs
20 mm 0.00 kg / 0.01 pounds
311 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
31 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
19 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
12 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
8 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
6 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
5 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 6x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.0 cm
Hearing aid 10 Gs (1.0 mT) 3.0 cm
Timepiece 20 Gs (2.0 mT) 2.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.0 cm
Car key 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Dynamics (cracking risk) - collision effects
MW 6x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 30.23 km/h
(8.40 m/s)
0.04 J
30 mm 52.34 km/h
(14.54 m/s)
0.13 J
50 mm 67.56 km/h
(18.77 m/s)
0.22 J
100 mm 95.55 km/h
(26.54 m/s)
0.45 J

Table 9: Corrosion resistance
MW 6x6 / 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: Electrical data (Pc)
MW 6x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 613 Mx 16.1 µWb
Pc Coefficient 0.89 High (Stable)

Table 11: Submerged application
MW 6x6 / N38

Environment Effective steel pull Effect
Air (land) 1.14 kg Standard
Water (riverbed) 1.31 kg
(+0.17 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. Wall mount (shear)

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

2. Steel saturation

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Heat tolerance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.89

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.

Engineering data and GPSR
Chemical composition
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: 010094-2026
Measurement Calculator
Force (pull)

Magnetic Field

Other products

The offered product is a very strong cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø6x6 mm, guarantees optimal power. The MW 6x6 / N38 component boasts an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 1.14 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is created for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 11.18 N with a weight of only 1.27 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, you must not use 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 are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are suitable for the majority of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø6x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
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 lifting capacity amounting to approximately 1.14 kg (force ~11.18 N), which, with such defined 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.

Advantages as well as disadvantages of neodymium magnets.

Pros

Apart from their consistent magnetism, neodymium magnets have these key benefits:
  • They retain magnetic properties for nearly ten years – the drop is just ~1% (based on simulations),
  • Neodymium magnets remain exceptionally resistant to magnetic field loss caused by external magnetic fields,
  • In other words, due to the aesthetic surface of nickel, the element becomes visually attractive,
  • Magnetic induction on the surface of the magnet is impressive,
  • Neodymium magnets are characterized by extremely 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 possibility of precise forming and customization to specialized requirements, neodymium magnets can be manufactured in a variety of forms and dimensions, which makes them more universal,
  • Key role in modern technologies – they are commonly used in computer drives, electromotive mechanisms, advanced medical instruments, as well as other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • We suggest cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
  • Possible danger to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that small components of these devices can disrupt the diagnostic process medical in case of swallowing.
  • Due to complex production process, their price exceeds standard values,

Holding force characteristics

Best holding force of the magnet in ideal parameterswhat affects it?

Breakaway force is the result of a measurement for optimal configuration, including:
  • using a plate made of high-permeability steel, serving as a circuit closing element
  • possessing a massiveness of at least 10 mm to ensure full flux closure
  • with an ideally smooth touching surface
  • under conditions of ideal adhesion (metal-to-metal)
  • during pulling in a direction vertical to the plane
  • at temperature room level

Lifting capacity in practice – influencing factors

Bear in mind that the magnet holding will differ subject to the following factors, in order of importance:
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Steel thickness – too thin steel causes magnetic saturation, causing part of the power to be lost into the air.
  • Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures lower magnetic permeability and lifting capacity.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was assessed using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Safety rules for work with neodymium magnets
Magnets are brittle

NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them shattering into shards.

Medical implants

Warning for patients: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.

Allergy Warning

Medical facts indicate that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, avoid direct skin contact and choose coated magnets.

Powerful field

Exercise caution. Rare earth magnets act from a distance and snap with massive power, often quicker than you can react.

Keep away from children

Strictly keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are life-threatening.

Fire warning

Powder produced during machining of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.

Thermal limits

Control the heat. Heating the magnet to high heat will permanently weaken its properties and pulling force.

Safe distance

Data protection: Strong magnets can damage data carriers and delicate electronics (pacemakers, medical aids, timepieces).

Impact on smartphones

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

Pinching danger

Mind your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!

Attention! More info about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98