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MW 24x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010048

GTIN/EAN: 5906301810476

5.00

Diameter Ø

24 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

20.36 g

Magnetization Direction

↑ axial

Load capacity

9.98 kg / 97.88 N

Magnetic Induction

277.18 mT / 2772 Gs

Coating

[Zn] Zinc

5.10 with VAT / pcs + price for transport

4.15 ZŁ net + 23% VAT / pcs

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Technical details - MW 24x6 / N38 - cylindrical magnet

Specification / characteristics - MW 24x6 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010048
GTIN/EAN 5906301810476
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 24 mm [±0,1 mm]
Height 6 mm [±0,1 mm]
Weight 20.36 g
Magnetization Direction ↑ axial
Load capacity ~ ? 9.98 kg / 97.88 N
Magnetic Induction ~ ? 277.18 mT / 2772 Gs
Coating [Zn] Zinc
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 24x6 / 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

Physical modeling of the assembly - technical parameters

Presented information represent the outcome of a physical analysis. Results are based on models for the class Nd2Fe14B. Actual parameters may differ. Treat these calculations as a preliminary roadmap for designers.

Table 1: Static pull force (force vs gap) - characteristics
MW 24x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 2771 Gs
277.1 mT
9.98 kg / 22.00 LBS
9980.0 g / 97.9 N
medium risk
1 mm 2609 Gs
260.9 mT
8.85 kg / 19.50 LBS
8846.4 g / 86.8 N
medium risk
2 mm 2420 Gs
242.0 mT
7.61 kg / 16.78 LBS
7609.6 g / 74.7 N
medium risk
3 mm 2216 Gs
221.6 mT
6.38 kg / 14.07 LBS
6383.0 g / 62.6 N
medium risk
5 mm 1805 Gs
180.5 mT
4.23 kg / 9.33 LBS
4233.2 g / 41.5 N
medium risk
10 mm 991 Gs
99.1 mT
1.28 kg / 2.81 LBS
1275.9 g / 12.5 N
low risk
15 mm 542 Gs
54.2 mT
0.38 kg / 0.84 LBS
381.4 g / 3.7 N
low risk
20 mm 313 Gs
31.3 mT
0.13 kg / 0.28 LBS
127.2 g / 1.2 N
low risk
30 mm 125 Gs
12.5 mT
0.02 kg / 0.04 LBS
20.4 g / 0.2 N
low risk
50 mm 34 Gs
3.4 mT
0.00 kg / 0.00 LBS
1.5 g / 0.0 N
low risk

Table 2: Slippage capacity (wall)
MW 24x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 2.00 kg / 4.40 LBS
1996.0 g / 19.6 N
1 mm Stal (~0.2) 1.77 kg / 3.90 LBS
1770.0 g / 17.4 N
2 mm Stal (~0.2) 1.52 kg / 3.36 LBS
1522.0 g / 14.9 N
3 mm Stal (~0.2) 1.28 kg / 2.81 LBS
1276.0 g / 12.5 N
5 mm Stal (~0.2) 0.85 kg / 1.87 LBS
846.0 g / 8.3 N
10 mm Stal (~0.2) 0.26 kg / 0.56 LBS
256.0 g / 2.5 N
15 mm Stal (~0.2) 0.08 kg / 0.17 LBS
76.0 g / 0.7 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: Wall mounting (sliding) - vertical pull
MW 24x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.99 kg / 6.60 LBS
2994.0 g / 29.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.00 kg / 4.40 LBS
1996.0 g / 19.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.00 kg / 2.20 LBS
998.0 g / 9.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.99 kg / 11.00 LBS
4990.0 g / 49.0 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 24x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
1.00 kg / 2.20 LBS
998.0 g / 9.8 N
1 mm
25%
2.50 kg / 5.50 LBS
2495.0 g / 24.5 N
2 mm
50%
4.99 kg / 11.00 LBS
4990.0 g / 49.0 N
3 mm
75%
7.49 kg / 16.50 LBS
7485.0 g / 73.4 N
5 mm
100%
9.98 kg / 22.00 LBS
9980.0 g / 97.9 N
10 mm
100%
9.98 kg / 22.00 LBS
9980.0 g / 97.9 N
11 mm
100%
9.98 kg / 22.00 LBS
9980.0 g / 97.9 N
12 mm
100%
9.98 kg / 22.00 LBS
9980.0 g / 97.9 N

Table 5: Working in heat (stability) - power drop
MW 24x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 9.98 kg / 22.00 LBS
9980.0 g / 97.9 N
OK
40 °C -2.2% 9.76 kg / 21.52 LBS
9760.4 g / 95.7 N
OK
60 °C -4.4% 9.54 kg / 21.03 LBS
9540.9 g / 93.6 N
80 °C -6.6% 9.32 kg / 20.55 LBS
9321.3 g / 91.4 N
100 °C -28.8% 7.11 kg / 15.67 LBS
7105.8 g / 69.7 N

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 24x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 21.42 kg / 47.22 LBS
4 381 Gs
3.21 kg / 7.08 LBS
3213 g / 31.5 N
N/A
1 mm 20.25 kg / 44.65 LBS
5 390 Gs
3.04 kg / 6.70 LBS
3038 g / 29.8 N
18.23 kg / 40.19 LBS
~0 Gs
2 mm 18.99 kg / 41.86 LBS
5 218 Gs
2.85 kg / 6.28 LBS
2848 g / 27.9 N
17.09 kg / 37.67 LBS
~0 Gs
3 mm 17.67 kg / 38.95 LBS
5 034 Gs
2.65 kg / 5.84 LBS
2650 g / 26.0 N
15.90 kg / 35.06 LBS
~0 Gs
5 mm 15.00 kg / 33.07 LBS
4 638 Gs
2.25 kg / 4.96 LBS
2250 g / 22.1 N
13.50 kg / 29.76 LBS
~0 Gs
10 mm 9.09 kg / 20.03 LBS
3 610 Gs
1.36 kg / 3.00 LBS
1363 g / 13.4 N
8.18 kg / 18.03 LBS
~0 Gs
20 mm 2.74 kg / 6.04 LBS
1 982 Gs
0.41 kg / 0.91 LBS
411 g / 4.0 N
2.46 kg / 5.43 LBS
~0 Gs
50 mm 0.10 kg / 0.23 LBS
385 Gs
0.02 kg / 0.03 LBS
15 g / 0.2 N
0.09 kg / 0.21 LBS
~0 Gs
60 mm 0.04 kg / 0.10 LBS
251 Gs
0.01 kg / 0.01 LBS
7 g / 0.1 N
0.04 kg / 0.09 LBS
~0 Gs
70 mm 0.02 kg / 0.04 LBS
171 Gs
0.00 kg / 0.01 LBS
3 g / 0.0 N
0.02 kg / 0.04 LBS
~0 Gs
80 mm 0.01 kg / 0.02 LBS
121 Gs
0.00 kg / 0.00 LBS
2 g / 0.0 N
0.01 kg / 0.02 LBS
~0 Gs
90 mm 0.01 kg / 0.01 LBS
89 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
67 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Protective zones (implants) - warnings
MW 24x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 10.0 cm
Hearing aid 10 Gs (1.0 mT) 8.0 cm
Mechanical watch 20 Gs (2.0 mT) 6.5 cm
Mobile device 40 Gs (4.0 mT) 5.0 cm
Car key 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 (kinetic energy) - collision effects
MW 24x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.05 km/h
(6.68 m/s)
0.45 J
30 mm 38.72 km/h
(10.76 m/s)
1.18 J
50 mm 49.93 km/h
(13.87 m/s)
1.96 J
100 mm 70.61 km/h
(19.61 m/s)
3.92 J

Table 9: Anti-corrosion coating durability
MW 24x6 / N38

Technical parameter Value / Description
Coating type [Zn] Zinc
Layer structure Zn (Zinc)
Layer thickness 8-15 µm
Salt spray test (SST) ? 48 h
Recommended environment Indoors / Garage

Table 10: Electrical data (Pc)
MW 24x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 13 932 Mx 139.3 µWb
Pc Coefficient 0.35 Low (Flat)

Table 11: Underwater work (magnet fishing)
MW 24x6 / N38

Environment Effective steel pull Effect
Air (land) 9.98 kg Standard
Water (riverbed) 11.43 kg
(+1.45 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Shear force

*Warning: On a vertical surface, the magnet retains only ~20% of its max power.

2. Steel saturation

*Thin metal sheet (e.g. 0.5mm PC case) significantly limits 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) = 0.35

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.

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%
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: 010048-2026
Magnet Unit Converter
Magnet pull force

Magnetic Induction

Other products

This product is an extremely powerful rod magnet, composed of advanced NdFeB material, which, at dimensions of Ø24x6 mm, guarantees maximum efficiency. This specific item is characterized by a tolerance of ±0.1mm and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 9.98 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 97.88 N with a weight of only 20.36 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in automation, anaerobic resins 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 even stronger magnets in the same volume (Ø24x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 24 mm and height 6 mm. The value of 97.88 N means that the magnet is capable of holding a weight many times exceeding its own mass of 20.36 g. The product has a [NiCuNi] coating, which protects the surface 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 24 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 through the diameter if your project requires it.

Pros as well as cons of neodymium magnets.

Advantages

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
  • They are extremely resistant to demagnetization induced by external magnetic fields,
  • The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to look better,
  • The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • Thanks to flexibility in constructing and the capacity to customize to individual projects,
  • Fundamental importance in future technologies – they serve a role in computer drives, drive modules, diagnostic systems, and other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Disadvantages

Drawbacks and weaknesses of neodymium magnets and ways of using them
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We recommend cover - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated forms.
  • Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these products can disrupt the diagnostic process medical when they are in the body.
  • Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Optimal lifting capacity of a neodymium magnetwhat affects it?

Breakaway force was defined for optimal configuration, including:
  • using a sheet made of low-carbon steel, acting as a circuit closing element
  • with a cross-section no less than 10 mm
  • with an ideally smooth touching surface
  • without any clearance between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • at conditions approx. 20°C

Lifting capacity in practice – influencing factors

Holding efficiency impacted by specific conditions, such as (from most important):
  • Distance – the presence of any layer (rust, tape, air) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Chemical composition of the base – mild steel attracts best. Alloy steels lower magnetic permeability and holding force.
  • Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
  • Temperature – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.

Warnings
Immense force

Use magnets consciously. Their powerful strength can shock even experienced users. Plan your moves and do not underestimate their power.

This is not a toy

Strictly keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets connecting inside the body are fatal.

Machining danger

Fire warning: Rare earth powder is highly flammable. Do not process magnets without safety gear as this may cause fire.

Shattering risk

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Crushing force

Risk of injury: The attraction force is so great that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.

Warning for allergy sufferers

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, cease working with magnets and use protective gear.

Protect data

Very strong magnetic fields can destroy records on payment cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Operating temperature

Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Danger to pacemakers

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

Precision electronics

GPS units and smartphones are highly sensitive to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.

Warning! More info about hazards in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98