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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

bulk discounts:

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Detailed 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

Technical simulation of the magnet - report

These data constitute the outcome of a physical calculation. Values rely on algorithms for the class Nd2Fe14B. Actual parameters may differ from theoretical values. Use these data as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs distance) - 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 LBS
14750.0 g / 144.7 N
crushing
1 mm 3823 Gs
382.3 mT
12.41 kg / 27.36 LBS
12412.2 g / 121.8 N
crushing
2 mm 3461 Gs
346.1 mT
10.18 kg / 22.43 LBS
10175.8 g / 99.8 N
crushing
3 mm 3102 Gs
310.2 mT
8.17 kg / 18.01 LBS
8171.3 g / 80.2 N
medium risk
5 mm 2434 Gs
243.4 mT
5.03 kg / 11.09 LBS
5032.6 g / 49.4 N
medium risk
10 mm 1262 Gs
126.2 mT
1.35 kg / 2.98 LBS
1352.7 g / 13.3 N
low risk
15 mm 675 Gs
67.5 mT
0.39 kg / 0.85 LBS
387.3 g / 3.8 N
low risk
20 mm 388 Gs
38.8 mT
0.13 kg / 0.28 LBS
128.2 g / 1.3 N
low risk
30 mm 157 Gs
15.7 mT
0.02 kg / 0.05 LBS
20.9 g / 0.2 N
low risk
50 mm 43 Gs
4.3 mT
0.00 kg / 0.00 LBS
1.6 g / 0.0 N
low risk

Table 2: Sliding load (wall)
MW 22x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.95 kg / 6.50 LBS
2950.0 g / 28.9 N
1 mm Stal (~0.2) 2.48 kg / 5.47 LBS
2482.0 g / 24.3 N
2 mm Stal (~0.2) 2.04 kg / 4.49 LBS
2036.0 g / 20.0 N
3 mm Stal (~0.2) 1.63 kg / 3.60 LBS
1634.0 g / 16.0 N
5 mm Stal (~0.2) 1.01 kg / 2.22 LBS
1006.0 g / 9.9 N
10 mm Stal (~0.2) 0.27 kg / 0.60 LBS
270.0 g / 2.6 N
15 mm Stal (~0.2) 0.08 kg / 0.17 LBS
78.0 g / 0.8 N
20 mm Stal (~0.2) 0.03 kg / 0.06 LBS
26.0 g / 0.3 N
30 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N

Table 3: Vertical assembly (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 LBS
4425.0 g / 43.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.95 kg / 6.50 LBS
2950.0 g / 28.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.48 kg / 3.25 LBS
1475.0 g / 14.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
7.38 kg / 16.26 LBS
7375.0 g / 72.3 N

Table 4: Material efficiency (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 LBS
737.5 g / 7.2 N
1 mm
13%
1.84 kg / 4.06 LBS
1843.8 g / 18.1 N
2 mm
25%
3.69 kg / 8.13 LBS
3687.5 g / 36.2 N
3 mm
38%
5.53 kg / 12.19 LBS
5531.3 g / 54.3 N
5 mm
63%
9.22 kg / 20.32 LBS
9218.8 g / 90.4 N
10 mm
100%
14.75 kg / 32.52 LBS
14750.0 g / 144.7 N
11 mm
100%
14.75 kg / 32.52 LBS
14750.0 g / 144.7 N
12 mm
100%
14.75 kg / 32.52 LBS
14750.0 g / 144.7 N

Table 5: Thermal resistance (stability) - 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 LBS
14750.0 g / 144.7 N
OK
40 °C -2.2% 14.43 kg / 31.80 LBS
14425.5 g / 141.5 N
OK
60 °C -4.4% 14.10 kg / 31.09 LBS
14101.0 g / 138.3 N
80 °C -6.6% 13.78 kg / 30.37 LBS
13776.5 g / 135.1 N
100 °C -28.8% 10.50 kg / 23.15 LBS
10502.0 g / 103.0 N

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 22x10 / N38

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

Table 7: Hazards (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
Mobile device 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: Impact energy (cracking risk) - collision effects
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 (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: Physics of underwater searching
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Vertical hold

*Caution: On a vertical surface, the magnet holds merely a fraction of its max power.

2. Steel thickness impact

*Thin steel (e.g. computer 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 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%
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

Magnetic Field

See also proposals

This product is an extremely powerful cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø22x10 mm, guarantees optimal power. The MW 22x10 / N38 component boasts an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 14.75 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
It finds application in modeling, advanced automation, 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 cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a tolerance of ±0.1mm, 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, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. 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 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 value of 144.65 N means that the magnet is capable of holding a weight many times exceeding its own mass of 28.51 g. 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 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.

Pros and cons of Nd2Fe14B magnets.

Pros

Apart from their notable magnetism, neodymium magnets have these key benefits:
  • They retain full power for nearly 10 years – the loss is just ~1% (according to analyses),
  • Neodymium magnets prove to be remarkably resistant to demagnetization caused by external interference,
  • By applying a lustrous layer of gold, the element gains an aesthetic look,
  • The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of accurate forming and adapting to precise applications,
  • Key role in modern industrial fields – they are utilized in mass storage devices, electromotive mechanisms, medical devices, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in miniature devices

Cons

Disadvantages of NdFeB magnets:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We recommend casing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that small components of these devices are able to complicate diagnosis medical after entering the body.
  • Due to neodymium price, their price is higher than average,

Lifting parameters

Best holding force of the magnet in ideal parameterswhat it depends on?

Information about lifting capacity is the result of a measurement for the most favorable conditions, including:
  • using a plate made of mild steel, functioning as a magnetic yoke
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • characterized by smoothness
  • under conditions of ideal adhesion (metal-to-metal)
  • for force applied at a right angle (pull-off, not shear)
  • at room temperature

Magnet lifting force in use – key factors

Bear in mind that the working load will differ depending on the following factors, in order of importance:
  • Space between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
  • Material type – the best choice is high-permeability steel. Stainless steels may attract less.
  • Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
  • Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet and the plate decreases the lifting capacity.

Safe handling of NdFeB magnets
Keep away from computers

Very strong magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.

Operating temperature

Keep cool. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).

Flammability

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Fragile material

Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Warning for heart patients

For implant holders: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or request help to work with the magnets.

Danger to the youngest

Product intended for adults. Small elements pose a choking risk, causing intestinal necrosis. Store away from kids and pets.

Immense force

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Skin irritation risks

Some people have a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact might lead to a rash. It is best to wear safety gloves.

Finger safety

Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Phone sensors

Note: rare earth magnets produce a field that interferes with sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.

Important! Details about risks in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98