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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 details - 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

Technical modeling of the product - technical parameters

Presented data represent the outcome of a physical analysis. Values were calculated on algorithms for the material Nd2Fe14B. Operational performance might slightly deviate from the simulation results. Use these data as a preliminary roadmap for designers.

Table 1: Static force (force vs gap) - power drop
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
warning
5 mm 2434 Gs
243.4 mT
5.03 kg / 11.09 pounds
5032.6 g / 49.4 N
warning
10 mm 1262 Gs
126.2 mT
1.35 kg / 2.98 pounds
1352.7 g / 13.3 N
low risk
15 mm 675 Gs
67.5 mT
0.39 kg / 0.85 pounds
387.3 g / 3.8 N
low risk
20 mm 388 Gs
38.8 mT
0.13 kg / 0.28 pounds
128.2 g / 1.3 N
low risk
30 mm 157 Gs
15.7 mT
0.02 kg / 0.05 pounds
20.9 g / 0.2 N
low risk
50 mm 43 Gs
4.3 mT
0.00 kg / 0.00 pounds
1.6 g / 0.0 N
low risk

Table 2: Sliding 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: Vertical assembly (sliding) - vertical pull
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 resistance (material behavior) - thermal limit
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: Magnet-Magnet interaction (repulsion) - field range
MW 22x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (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: Protective zones (implants) - precautionary measures
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
Timepiece 20 Gs (2.0 mT) 7.0 cm
Mobile device 40 Gs (4.0 mT) 5.5 cm
Remote 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: Collisions (cracking risk) - 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: Coating parameters (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 (Flux)
MW 22x10 / N38

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

Table 11: Underwater work (magnet fishing)
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%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Sliding resistance

*Caution: On a vertical wall, the magnet holds only approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) significantly limits 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) = 0.55

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: 010046-2026
Magnet Unit Converter
Magnet pull force

Field Strength

Other products

The offered product is an exceptionally strong rod magnet, made from advanced NdFeB material, which, at dimensions of Ø22x10 mm, guarantees the highest energy density. The MW 22x10 / N38 model 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 magnetic rod with significant force (approx. 14.75 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 144.65 N with a weight of only 28.51 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
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, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade 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 warehouse.
This model is characterized by dimensions Ø22x10 mm, which, at a weight of 28.51 g, makes it an element with high 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 power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, 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 22 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 Nd2Fe14B magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:
  • They retain full power for almost 10 years – the drop is just ~1% (in theory),
  • They are noted for resistance to demagnetization induced by presence of other magnetic fields,
  • By using a lustrous layer of nickel, the element presents an nice look,
  • The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
  • 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...
  • Thanks to freedom in designing and the capacity to adapt to individual projects,
  • Fundamental importance in advanced technology sectors – they are used in mass storage devices, electric drive systems, medical devices, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in small systems

Cons

Problematic aspects of neodymium magnets: tips and applications.
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also increases their durability
  • Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in producing nuts and complicated forms in magnets, we propose using cover - magnetic mechanism.
  • Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these products are able to be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Breakaway strength of the magnet in ideal conditionswhat contributes to it?

The force parameter is a theoretical maximum value performed under specific, ideal conditions:
  • on a base made of structural steel, optimally conducting the magnetic field
  • whose transverse dimension is min. 10 mm
  • characterized by smoothness
  • under conditions of gap-free contact (surface-to-surface)
  • during pulling in a direction vertical to the plane
  • in temp. approx. 20°C

Determinants of lifting force in real conditions

Please note that the working load may be lower depending on the following factors, starting with the most relevant:
  • Clearance – the presence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Angle of force application – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
  • Base massiveness – too thin plate causes magnetic saturation, causing part of the power to be lost into the air.
  • Chemical composition of the base – low-carbon steel gives the best results. Alloy steels reduce magnetic permeability and holding force.
  • Smoothness – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity was measured using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under parallel forces the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.

Safety rules for work with neodymium magnets
Dust is flammable

Fire hazard: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

Sensitization to coating

Certain individuals suffer from a sensitization to nickel, which is the common plating for neodymium magnets. Extended handling might lead to dermatitis. We suggest use safety gloves.

Permanent damage

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. The loss of strength is permanent.

Product not for children

Always keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are life-threatening.

Impact on smartphones

A powerful magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Maintain magnets near a device to avoid breaking the sensors.

Pinching danger

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

Powerful field

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

Electronic hazard

Very strong magnetic fields can erase data on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.

Eye protection

Watch out for shards. Magnets can explode upon violent connection, launching shards into the air. Eye protection is mandatory.

Life threat

Warning for patients: Powerful magnets affect medical devices. Keep at least 30 cm distance or request help to work with the magnets.

Danger! More info about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98