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MW 22x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010046

GTIN/EAN: 5906301810452

Diameter Ø

22 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

28.51 g

Magnetization Direction

↑ axial

Load capacity

14.75 kg / 144.65 N

Magnetic Induction

416.85 mT / 4168 Gs

Coating

[NiCuNi] Nickel

11.30 with VAT / pcs + price for transport

9.19 ZŁ net + 23% VAT / pcs

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Technical data - MW 22x10 / N38 - cylindrical magnet

Specification / characteristics - MW 22x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010046
GTIN/EAN 5906301810452
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 22 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 28.51 g
Magnetization Direction ↑ axial
Load capacity ~ ? 14.75 kg / 144.65 N
Magnetic Induction ~ ? 416.85 mT / 4168 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 22x10 / 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 assembly - technical parameters

The following information are the result of a physical simulation. Values were calculated on algorithms for the material Nd2Fe14B. Actual parameters may deviate from the simulation results. Treat these data as a supplementary guide during assembly planning.

Table 1: Static force (pull vs gap) - characteristics
MW 22x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4167 Gs
416.7 mT
14.75 kg / 32.52 pounds
14750.0 g / 144.7 N
critical level
1 mm 3823 Gs
382.3 mT
12.41 kg / 27.36 pounds
12412.2 g / 121.8 N
critical level
2 mm 3461 Gs
346.1 mT
10.18 kg / 22.43 pounds
10175.8 g / 99.8 N
critical level
3 mm 3102 Gs
310.2 mT
8.17 kg / 18.01 pounds
8171.3 g / 80.2 N
strong
5 mm 2434 Gs
243.4 mT
5.03 kg / 11.09 pounds
5032.6 g / 49.4 N
strong
10 mm 1262 Gs
126.2 mT
1.35 kg / 2.98 pounds
1352.7 g / 13.3 N
safe
15 mm 675 Gs
67.5 mT
0.39 kg / 0.85 pounds
387.3 g / 3.8 N
safe
20 mm 388 Gs
38.8 mT
0.13 kg / 0.28 pounds
128.2 g / 1.3 N
safe
30 mm 157 Gs
15.7 mT
0.02 kg / 0.05 pounds
20.9 g / 0.2 N
safe
50 mm 43 Gs
4.3 mT
0.00 kg / 0.00 pounds
1.6 g / 0.0 N
safe

Table 2: Shear force (wall)
MW 22x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.95 kg / 6.50 pounds
2950.0 g / 28.9 N
1 mm Stal (~0.2) 2.48 kg / 5.47 pounds
2482.0 g / 24.3 N
2 mm Stal (~0.2) 2.04 kg / 4.49 pounds
2036.0 g / 20.0 N
3 mm Stal (~0.2) 1.63 kg / 3.60 pounds
1634.0 g / 16.0 N
5 mm Stal (~0.2) 1.01 kg / 2.22 pounds
1006.0 g / 9.9 N
10 mm Stal (~0.2) 0.27 kg / 0.60 pounds
270.0 g / 2.6 N
15 mm Stal (~0.2) 0.08 kg / 0.17 pounds
78.0 g / 0.8 N
20 mm Stal (~0.2) 0.03 kg / 0.06 pounds
26.0 g / 0.3 N
30 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 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 (sliding) - behavior on slippery surfaces
MW 22x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
4.43 kg / 9.76 pounds
4425.0 g / 43.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.95 kg / 6.50 pounds
2950.0 g / 28.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.48 kg / 3.25 pounds
1475.0 g / 14.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
7.38 kg / 16.26 pounds
7375.0 g / 72.3 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 22x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
5%
0.74 kg / 1.63 pounds
737.5 g / 7.2 N
1 mm
13%
1.84 kg / 4.06 pounds
1843.8 g / 18.1 N
2 mm
25%
3.69 kg / 8.13 pounds
3687.5 g / 36.2 N
3 mm
38%
5.53 kg / 12.19 pounds
5531.3 g / 54.3 N
5 mm
63%
9.22 kg / 20.32 pounds
9218.8 g / 90.4 N
10 mm
100%
14.75 kg / 32.52 pounds
14750.0 g / 144.7 N
11 mm
100%
14.75 kg / 32.52 pounds
14750.0 g / 144.7 N
12 mm
100%
14.75 kg / 32.52 pounds
14750.0 g / 144.7 N

Table 5: Thermal stability (material behavior) - power drop
MW 22x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 14.75 kg / 32.52 pounds
14750.0 g / 144.7 N
OK
40 °C -2.2% 14.43 kg / 31.80 pounds
14425.5 g / 141.5 N
OK
60 °C -4.4% 14.10 kg / 31.09 pounds
14101.0 g / 138.3 N
80 °C -6.6% 13.78 kg / 30.37 pounds
13776.5 g / 135.1 N
100 °C -28.8% 10.50 kg / 23.15 pounds
10502.0 g / 103.0 N

Table 6: Two magnets (attraction) - field collision
MW 22x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 40.70 kg / 89.72 pounds
5 428 Gs
6.10 kg / 13.46 pounds
6105 g / 59.9 N
N/A
1 mm 37.49 kg / 82.64 pounds
7 999 Gs
5.62 kg / 12.40 pounds
5623 g / 55.2 N
33.74 kg / 74.38 pounds
~0 Gs
2 mm 34.25 kg / 75.50 pounds
7 645 Gs
5.14 kg / 11.33 pounds
5137 g / 50.4 N
30.82 kg / 67.95 pounds
~0 Gs
3 mm 31.10 kg / 68.56 pounds
7 285 Gs
4.66 kg / 10.28 pounds
4664 g / 45.8 N
27.99 kg / 61.70 pounds
~0 Gs
5 mm 25.22 kg / 55.60 pounds
6 561 Gs
3.78 kg / 8.34 pounds
3783 g / 37.1 N
22.70 kg / 50.04 pounds
~0 Gs
10 mm 13.89 kg / 30.61 pounds
4 868 Gs
2.08 kg / 4.59 pounds
2083 g / 20.4 N
12.50 kg / 27.55 pounds
~0 Gs
20 mm 3.73 kg / 8.23 pounds
2 524 Gs
0.56 kg / 1.23 pounds
560 g / 5.5 N
3.36 kg / 7.41 pounds
~0 Gs
50 mm 0.13 kg / 0.30 pounds
480 Gs
0.02 kg / 0.04 pounds
20 g / 0.2 N
0.12 kg / 0.27 pounds
~0 Gs
60 mm 0.06 kg / 0.13 pounds
314 Gs
0.01 kg / 0.02 pounds
9 g / 0.1 N
0.05 kg / 0.11 pounds
~0 Gs
70 mm 0.03 kg / 0.06 pounds
216 Gs
0.00 kg / 0.01 pounds
4 g / 0.0 N
0.02 kg / 0.05 pounds
~0 Gs
80 mm 0.01 kg / 0.03 pounds
154 Gs
0.00 kg / 0.00 pounds
2 g / 0.0 N
0.01 kg / 0.03 pounds
~0 Gs
90 mm 0.01 kg / 0.02 pounds
114 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.01 pounds
86 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Safety (HSE) (implants) - warnings
MW 22x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 11.0 cm
Hearing aid 10 Gs (1.0 mT) 9.0 cm
Mechanical watch 20 Gs (2.0 mT) 7.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.5 cm
Car key 50 Gs (5.0 mT) 5.0 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 2.0 cm

Table 8: Dynamics (kinetic energy) - warning
MW 22x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.22 km/h
(6.73 m/s)
0.65 J
30 mm 39.77 km/h
(11.05 m/s)
1.74 J
50 mm 51.30 km/h
(14.25 m/s)
2.89 J
100 mm 72.54 km/h
(20.15 m/s)
5.79 J

Table 9: Anti-corrosion coating durability
MW 22x10 / 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 (Pc)
MW 22x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 16 172 Mx 161.7 µWb
Pc Coefficient 0.55 Low (Flat)

Table 11: Submerged application
MW 22x10 / N38

Environment Effective steel pull Effect
Air (land) 14.75 kg Standard
Water (riverbed) 16.89 kg
(+2.14 kg buoyancy gain)
+14.5%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds only ~20% of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) severely reduces the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.55

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.

Engineering data and GPSR
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%
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: 010046-2026
Quick Unit Converter
Force (pull)

Magnetic Induction

See also proposals

The offered product is an incredibly powerful cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø22x10 mm, guarantees optimal power. The MW 22x10 / N38 component is characterized by a tolerance of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 14.75 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 144.65 N with a weight of only 28.51 g, this rod is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 22.1 mm) using epoxy glues. 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 modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø22x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
This model is characterized by dimensions Ø22x10 mm, which, at a weight of 28.51 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 14.75 kg (force ~144.65 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 10 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 through the diameter if your project requires it.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:
  • They do not lose magnetism, even during approximately 10 years – the decrease in strength is only ~1% (according to tests),
  • They possess excellent resistance to magnetism drop as a result of external fields,
  • A magnet with a shiny gold surface has an effective appearance,
  • Magnets possess huge magnetic induction on the outer layer,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures approaching 230°C and above...
  • Possibility of individual forming and adjusting to defined needs,
  • Fundamental importance in innovative solutions – they serve a role in mass storage devices, electric drive systems, diagnostic systems, also complex engineering applications.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets lose force 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 very resistant to heat
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • We recommend cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated forms.
  • Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products are able to complicate diagnosis medical in case of swallowing.
  • With mass production the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum lifting force for a neodymium magnet – what contributes to it?

Breakaway force was defined for optimal configuration, including:
  • with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
  • whose transverse dimension reaches at least 10 mm
  • with an polished contact surface
  • without the slightest insulating layer between the magnet and steel
  • under axial application of breakaway force (90-degree angle)
  • in stable room temperature

Practical aspects of lifting capacity – factors

During everyday use, the real power is determined by many variables, listed from the most important:
  • Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Plate material – low-carbon steel attracts best. Alloy steels lower magnetic permeability and holding force.
  • Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Temperature – temperature increase causes a temporary drop of induction. Check the thermal limit for a given model.

Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Safe handling of NdFeB magnets
Nickel coating and allergies

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

Medical interference

Individuals with a ICD must maintain an large gap from magnets. The magnetism can stop the functioning of the implant.

Risk of cracking

Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Handling rules

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

Permanent damage

Watch the temperature. Heating the magnet to high heat will destroy its properties and pulling force.

Hand protection

Pinching hazard: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Do not drill into magnets

Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Keep away from electronics

Remember: neodymium magnets generate a field that confuses sensitive sensors. Keep a safe distance from your mobile, tablet, and GPS.

Safe distance

Intense magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

Product not for children

Always store magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are very dangerous.

Warning! Learn more about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98