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MW 22x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010047

GTIN/EAN: 5906301810469

5.00

Diameter Ø

22 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

17.11 g

Magnetization Direction

↑ axial

Load capacity

9.33 kg / 91.51 N

Magnetic Induction

296.78 mT / 2968 Gs

Coating

[NiCuNi] Nickel

6.11 with VAT / pcs + price for transport

4.97 ZŁ net + 23% VAT / pcs

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Physical properties - MW 22x6 / N38 - cylindrical magnet

Specification / characteristics - MW 22x6 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010047
GTIN/EAN 5906301810469
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 6 mm [±0,1 mm]
Weight 17.11 g
Magnetization Direction ↑ axial
Load capacity ~ ? 9.33 kg / 91.51 N
Magnetic Induction ~ ? 296.78 mT / 2968 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 22x6 / 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 - report

Presented data represent the result of a engineering calculation. Results rely on models for the class Nd2Fe14B. Real-world performance may differ. Please consider these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - characteristics
MW 22x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2967 Gs
296.7 mT
9.33 kg / 20.57 LBS
9330.0 g / 91.5 N
strong
1 mm 2767 Gs
276.7 mT
8.12 kg / 17.89 LBS
8116.0 g / 79.6 N
strong
2 mm 2538 Gs
253.8 mT
6.82 kg / 15.05 LBS
6824.4 g / 66.9 N
strong
3 mm 2295 Gs
229.5 mT
5.58 kg / 12.30 LBS
5580.8 g / 54.7 N
strong
5 mm 1818 Gs
181.8 mT
3.50 kg / 7.73 LBS
3504.7 g / 34.4 N
strong
10 mm 938 Gs
93.8 mT
0.93 kg / 2.06 LBS
933.4 g / 9.2 N
weak grip
15 mm 492 Gs
49.2 mT
0.26 kg / 0.57 LBS
257.0 g / 2.5 N
weak grip
20 mm 277 Gs
27.7 mT
0.08 kg / 0.18 LBS
81.6 g / 0.8 N
weak grip
30 mm 108 Gs
10.8 mT
0.01 kg / 0.03 LBS
12.4 g / 0.1 N
weak grip
50 mm 29 Gs
2.9 mT
0.00 kg / 0.00 LBS
0.9 g / 0.0 N
weak grip

Table 2: Sliding force (vertical surface)
MW 22x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.87 kg / 4.11 LBS
1866.0 g / 18.3 N
1 mm Stal (~0.2) 1.62 kg / 3.58 LBS
1624.0 g / 15.9 N
2 mm Stal (~0.2) 1.36 kg / 3.01 LBS
1364.0 g / 13.4 N
3 mm Stal (~0.2) 1.12 kg / 2.46 LBS
1116.0 g / 10.9 N
5 mm Stal (~0.2) 0.70 kg / 1.54 LBS
700.0 g / 6.9 N
10 mm Stal (~0.2) 0.19 kg / 0.41 LBS
186.0 g / 1.8 N
15 mm Stal (~0.2) 0.05 kg / 0.11 LBS
52.0 g / 0.5 N
20 mm Stal (~0.2) 0.02 kg / 0.04 LBS
16.0 g / 0.2 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 22x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.80 kg / 6.17 LBS
2799.0 g / 27.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.87 kg / 4.11 LBS
1866.0 g / 18.3 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.93 kg / 2.06 LBS
933.0 g / 9.2 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.67 kg / 10.28 LBS
4665.0 g / 45.8 N

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 22x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.93 kg / 2.06 LBS
933.0 g / 9.2 N
1 mm
25%
2.33 kg / 5.14 LBS
2332.5 g / 22.9 N
2 mm
50%
4.67 kg / 10.28 LBS
4665.0 g / 45.8 N
3 mm
75%
7.00 kg / 15.43 LBS
6997.5 g / 68.6 N
5 mm
100%
9.33 kg / 20.57 LBS
9330.0 g / 91.5 N
10 mm
100%
9.33 kg / 20.57 LBS
9330.0 g / 91.5 N
11 mm
100%
9.33 kg / 20.57 LBS
9330.0 g / 91.5 N
12 mm
100%
9.33 kg / 20.57 LBS
9330.0 g / 91.5 N

Table 5: Working in heat (material behavior) - resistance threshold
MW 22x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 9.33 kg / 20.57 LBS
9330.0 g / 91.5 N
OK
40 °C -2.2% 9.12 kg / 20.12 LBS
9124.7 g / 89.5 N
OK
60 °C -4.4% 8.92 kg / 19.66 LBS
8919.5 g / 87.5 N
80 °C -6.6% 8.71 kg / 19.21 LBS
8714.2 g / 85.5 N
100 °C -28.8% 6.64 kg / 14.65 LBS
6643.0 g / 65.2 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 22x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 20.63 kg / 45.48 LBS
4 566 Gs
3.09 kg / 6.82 LBS
3095 g / 30.4 N
N/A
1 mm 19.34 kg / 42.63 LBS
5 745 Gs
2.90 kg / 6.40 LBS
2901 g / 28.5 N
17.40 kg / 38.37 LBS
~0 Gs
2 mm 17.95 kg / 39.57 LBS
5 535 Gs
2.69 kg / 5.93 LBS
2692 g / 26.4 N
16.15 kg / 35.61 LBS
~0 Gs
3 mm 16.52 kg / 36.42 LBS
5 310 Gs
2.48 kg / 5.46 LBS
2478 g / 24.3 N
14.87 kg / 32.78 LBS
~0 Gs
5 mm 13.69 kg / 30.18 LBS
4 834 Gs
2.05 kg / 4.53 LBS
2053 g / 20.1 N
12.32 kg / 27.16 LBS
~0 Gs
10 mm 7.75 kg / 17.09 LBS
3 637 Gs
1.16 kg / 2.56 LBS
1162 g / 11.4 N
6.97 kg / 15.38 LBS
~0 Gs
20 mm 2.06 kg / 4.55 LBS
1 877 Gs
0.31 kg / 0.68 LBS
310 g / 3.0 N
1.86 kg / 4.10 LBS
~0 Gs
50 mm 0.07 kg / 0.15 LBS
336 Gs
0.01 kg / 0.02 LBS
10 g / 0.1 N
0.06 kg / 0.13 LBS
~0 Gs
60 mm 0.03 kg / 0.06 LBS
217 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
0.02 kg / 0.05 LBS
~0 Gs
70 mm 0.01 kg / 0.03 LBS
147 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
0.01 kg / 0.03 LBS
~0 Gs
80 mm 0.01 kg / 0.01 LBS
104 Gs
0.00 kg / 0.00 LBS
1 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.01 LBS
76 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 / 0.00 LBS
57 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Hazards (electronics) - warnings
MW 22x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 9.5 cm
Hearing aid 10 Gs (1.0 mT) 7.5 cm
Timepiece 20 Gs (2.0 mT) 6.0 cm
Mobile device 40 Gs (4.0 mT) 4.5 cm
Remote 50 Gs (5.0 mT) 4.5 cm
Payment card 400 Gs (40.0 mT) 2.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm

Table 8: Dynamics (cracking risk) - collision effects
MW 22x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.98 km/h
(6.94 m/s)
0.41 J
30 mm 40.82 km/h
(11.34 m/s)
1.10 J
50 mm 52.66 km/h
(14.63 m/s)
1.83 J
100 mm 74.47 km/h
(20.69 m/s)
3.66 J

Table 9: Coating parameters (durability)
MW 22x6 / 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 (Flux)
MW 22x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 12 337 Mx 123.4 µWb
Pc Coefficient 0.37 Low (Flat)

Table 11: Submerged application
MW 22x6 / N38

Environment Effective steel pull Effect
Air (land) 9.33 kg Standard
Water (riverbed) 10.68 kg
(+1.35 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)

*Note: On a vertical surface, the magnet holds merely ~20% of its nominal pull.

2. Steel thickness impact

*Thin steel (e.g. computer case) severely limits the holding force.

3. Temperature resistance

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.37

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: 010047-2026
Magnet Unit Converter
Magnet pull force

Magnetic Field

Check out also offers

This product is an extremely powerful rod magnet, composed of modern NdFeB material, which, with dimensions of Ø22x6 mm, guarantees maximum efficiency. The MW 22x6 / N38 component is characterized by high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 9.33 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is created for building generators, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 91.51 N with a weight of only 17.11 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Since our magnets have a very precise dimensions, the recommended way 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 are safe for nickel 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 excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø22x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 22 mm and height 6 mm. The value of 91.51 N means that the magnet is capable of holding a weight many times exceeding its own mass of 17.11 g. The product has a [NiCuNi] coating, which protects the surface 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 through the diameter if your project requires it.

Pros as well as cons of neodymium magnets.

Pros

Apart from their strong power, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
  • Neodymium magnets are characterized by highly resistant to demagnetization caused by external interference,
  • In other words, due to the reflective layer of silver, the element gains visual value,
  • They feature high magnetic induction at the operating surface, which increases their power,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of detailed forming and adjusting to specific requirements,
  • Key role in advanced technology sectors – they are commonly used in data components, electric motors, precision medical tools, also industrial machines.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets: weaknesses and usage proposals
  • At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets decrease their strength 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 advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We suggest casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex forms.
  • Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. Additionally, small components of these devices are able to complicate diagnosis medical in case of swallowing.
  • With mass production the cost of neodymium magnets is a challenge,

Lifting parameters

Maximum lifting capacity of the magnetwhat it depends on?

The lifting capacity listed is a measurement result conducted under standard conditions:
  • with the application of a yoke made of low-carbon steel, guaranteeing maximum field concentration
  • with a cross-section minimum 10 mm
  • characterized by smoothness
  • with direct contact (no coatings)
  • under vertical application of breakaway force (90-degree angle)
  • at conditions approx. 20°C

Lifting capacity in practice – influencing factors

Effective lifting capacity is influenced by specific conditions, such as (from priority):
  • Gap between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Steel grade – ideal substrate is pure iron steel. Cast iron may attract less.
  • Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet and the plate decreases the load capacity.

Warnings
Machining danger

Powder produced during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Protective goggles

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

This is not a toy

Neodymium magnets are not toys. Swallowing a few magnets can lead to them pinching intestinal walls, which constitutes a direct threat to life and necessitates immediate surgery.

Pinching danger

Large magnets can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.

Caution required

Handle magnets consciously. Their huge power can shock even professionals. Stay alert and respect their power.

Heat warning

Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Threat to navigation

Navigation devices and smartphones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Implant safety

For implant holders: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Electronic devices

Data protection: Strong magnets can ruin payment cards and delicate electronics (pacemakers, hearing aids, mechanical watches).

Nickel coating and allergies

Some people have a sensitization to Ni, which is the common plating for neodymium magnets. Frequent touching can result in an allergic reaction. It is best to use protective gloves.

Important! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98