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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

check parameters »

11.30 ZŁ with VAT / pcs + price for transport

9.19 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 22 499 98 98 alternatively get in touch via request form the contact page.
Specifications and shape of neodymium magnets can be verified on our modular calculator.

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Technical specification - 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 analysis of the assembly - data

These values represent the result of a mathematical calculation. Values rely on algorithms for the class Nd2Fe14B. Operational parameters might slightly differ. Use these data as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull 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
 crushing
1 mm 3823 Gs
382.3 mT
 12.41 kg / 27.36 pounds
12412.2 g / 121.8 N
 crushing
2 mm 3461 Gs
346.1 mT
 10.18 kg / 22.43 pounds
10175.8 g / 99.8 N
 crushing
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
 weak grip
15 mm 675 Gs
67.5 mT
 0.39 kg / 0.85 pounds
387.3 g / 3.8 N
 weak grip
20 mm 388 Gs
38.8 mT
 0.13 kg / 0.28 pounds
128.2 g / 1.3 N
 weak grip
30 mm 157 Gs
15.7 mT
 0.02 kg / 0.05 pounds
20.9 g / 0.2 N
 weak grip
50 mm 43 Gs
4.3 mT
 0.00 kg / 0.00 pounds
1.6 g / 0.0 N
 weak grip
Pulling power weakens sharply with every mm of distance. Remember that even the smallest gap (e.g., dirt, varnish, veneer) significantly reduces the pull force. Magnets work strongest in perfect adhesion; distance weakens the force. See how quickly the load capacity fall, when the product does not adhere flatly to the steel surface. When calculating the mounting, avoid unnecessary gaps.

Table 2: Shear hold (vertical surface)
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
The table below indicates the estimated force sufficient to start the downward movement of the magnet downwards on a vertical steel wall (assuming standard friction). This value varies with the air gap between the magnet and the surface.

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
When hanging a element on a vertical plane (e.g., a car body), it will maintain only approx. 20%-30% of its nominal power. Gravitational force and a weak degree of grip influence the fact that magnets slip faster than they pull off. Want to create a wall mount? Note that the shear force is much weaker than the maximum static pull force. On a painted metal, the element will slip down under a significantly smaller cargo. Using a rubber coating can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
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
A thin metal plate is not enough to absorb the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a thin surface, the flux will pass right through and the holding will be smaller. To achieve full efficiency of this magnet's power, you require a sufficiently solid piece of metal. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the product works worse. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - 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
Classic neodymiums lose parameters past the thermal threshold. Protect against heat – high temperature can irreversibly damage this product. With every degree above norm, the magnet's force momentarily drops. Avoid using this magnet close to ovens higher than its operating temperature limit. Ignoring the limit will result in permanent loss of magnetic properties.
*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) are more susceptible to demagnetization sooner compared to rod magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
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
Two magnets interact from a wider radius than a magnet and steel setup. The setup of two magnets produces a massive flux and a further horizon of operation. Want to build a powerful holder? Use a pair of magnets instead of one magnet and a steel. Exercise caution that when bringing together two magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still large.
*Flux density between like poles reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Important: Results demonstrate shear force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (electronics) - 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
A strong magnetic field is a serious hazard to electronic devices and medical implants. These magnets produce a field that destroys function of digital equipment. Remember: the invisible magnetic field passes through tissues and housings. Exceptional care must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (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
Magnetic elements are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose speeds with massive force. Striking energy can cause material chips or injury to skin. Hold the magnet firmly during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when working with large magnets.

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)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

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)
Flux value passing through the magnet pole. Essential parameter when building generators and motors. Pc value defines the working geometry.

Table 11: Hydrostatics and buoyancy
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%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Wall mount (shear)

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

2. Steel thickness impact

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

3. Temperature resistance

*For N38 material, 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

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 specification and ecology
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%
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: 010046-2026
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The offered product is an exceptionally strong cylinder magnet, composed of durable NdFeB material, which, at dimensions of Ø22x10 mm, guarantees optimal power. The MW 22x10 / N38 component features a tolerance of ±0.1mm and professional build quality, making it a perfect 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 warehouse in Poland, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 144.65 N with a weight of only 28.51 g, this rod 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, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are strong enough 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 (Ø22x10), 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 22 mm and height 10 mm. The key parameter here is the lifting capacity amounting to approximately 14.75 kg (force ~144.65 N), which, with such defined dimensions, proves the high grade 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 22 mm. 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.

Pros as well as cons of neodymium magnets.

Benefits

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • Their magnetic field remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
  • Neodymium magnets are highly resistant to demagnetization caused by external field sources,
  • A magnet with a shiny silver surface looks better,
  • Magnets have maximum magnetic induction on the surface,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to freedom in designing and the ability to modify to individual projects,
  • Versatile presence in modern technologies – they find application in data components, electromotive mechanisms, diagnostic systems, and technologically advanced constructions.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets and ways of using them
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • 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 and 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 oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complicated shapes in magnets, we recommend using casing - magnetic mechanism.
  • Potential hazard resulting from small fragments of magnets are risky, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products can be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Highest magnetic holding force – what it depends on?

Magnet power is the result of a measurement for optimal configuration, taking into account:
  • on a base made of mild steel, effectively closing the magnetic flux
  • with a cross-section no less than 10 mm
  • with a surface free of scratches
  • with total lack of distance (without impurities)
  • under axial force direction (90-degree angle)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

Holding efficiency impacted by working environment parameters, including (from priority):
  • Air gap (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Steel grade – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
  • Surface structure – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness creates an air distance.
  • Thermal factor – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet’s surface and the plate lowers the holding force.

Safe handling of neodymium magnets
Product not for children

NdFeB magnets are not intended for children. Eating several magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and necessitates immediate surgery.

Immense force

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

Crushing force

Pinching hazard: The pulling power is so immense that it can cause hematomas, crushing, and broken bones. Use thick gloves.

Risk of cracking

Neodymium magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them shattering into small pieces.

Danger to pacemakers

Medical warning: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Nickel coating and allergies

Certain individuals suffer from a sensitization to nickel, which is the common plating for neodymium magnets. Frequent touching might lead to dermatitis. We strongly advise wear protective gloves.

Keep away from electronics

An intense magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to prevent damaging the sensors.

Flammability

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Heat warning

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.

Protect data

Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Security! Want to know more? Read our article: Why are neodymium magnets dangerous?