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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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Detailed specification - 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

Technical analysis of the product - report

The following information are the direct effect of a engineering simulation. Values were calculated on algorithms for the material Nd2Fe14B. Real-world parameters might slightly differ. Please consider these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - interaction chart
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
strong
1 mm 2609 Gs
260.9 mT
8.85 kg / 19.50 LBS
8846.4 g / 86.8 N
strong
2 mm 2420 Gs
242.0 mT
7.61 kg / 16.78 LBS
7609.6 g / 74.7 N
strong
3 mm 2216 Gs
221.6 mT
6.38 kg / 14.07 LBS
6383.0 g / 62.6 N
strong
5 mm 1805 Gs
180.5 mT
4.23 kg / 9.33 LBS
4233.2 g / 41.5 N
strong
10 mm 991 Gs
99.1 mT
1.28 kg / 2.81 LBS
1275.9 g / 12.5 N
safe
15 mm 542 Gs
54.2 mT
0.38 kg / 0.84 LBS
381.4 g / 3.7 N
safe
20 mm 313 Gs
31.3 mT
0.13 kg / 0.28 LBS
127.2 g / 1.2 N
safe
30 mm 125 Gs
12.5 mT
0.02 kg / 0.04 LBS
20.4 g / 0.2 N
safe
50 mm 34 Gs
3.4 mT
0.00 kg / 0.00 LBS
1.5 g / 0.0 N
safe

Table 2: Sliding 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: Vertical assembly (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: Material efficiency (substrate influence) - power losses
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: Thermal stability (material behavior) - 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: Two magnets (attraction) - field range
MW 24x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral 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: Hazards (electronics) - precautionary measures
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
Timepiece 20 Gs (2.0 mT) 6.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 5.0 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 (kinetic energy) - warning
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: Surface protection spec
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: Construction data (Flux)
MW 24x6 / N38

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

Table 11: Physics of underwater searching
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%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Sliding resistance

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

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) severely reduces the holding force.

3. Thermal stability

*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 specification and ecology
Elemental analysis
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
Quick Unit Converter
Magnet pull force

Magnetic Field

Other deals

The presented product is an extremely powerful cylinder magnet, made from modern NdFeB material, which, at dimensions of Ø24x6 mm, guarantees optimal power. This specific item is characterized by an accuracy of ±0.1mm and professional build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 9.98 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its 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 Hall effect sensors, and efficient magnetic separators, 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 rod is indispensable in electronics and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 24.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are strong enough for the majority 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 (Ø24x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
This model is characterized by dimensions Ø24x6 mm, which, at a weight of 20.36 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 9.98 kg (force ~97.88 N), which, with such defined dimensions, proves the high grade 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 24 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 and cons of Nd2Fe14B magnets.

Strengths

Apart from their notable power, neodymium magnets have these key benefits:
  • They do not lose magnetism, even during nearly ten years – the drop in lifting capacity is only ~1% (based on measurements),
  • They are resistant to demagnetization induced by external disturbances,
  • A magnet with a smooth gold surface has better aesthetics,
  • Magnetic induction on the surface of the magnet is extremely intense,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of individual machining and adapting to specific applications,
  • Significant place in high-tech industry – they are commonly used in hard drives, drive modules, medical equipment, as well as industrial machines.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Limitations

Problematic aspects of neodymium magnets: tips and applications.
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as 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 corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We suggest a housing - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated forms.
  • Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
  • Due to complex production process, their price is relatively high,

Holding force characteristics

Highest magnetic holding forcewhat contributes to it?

Magnet power was determined for ideal contact conditions, taking into account:
  • on a base made of mild steel, effectively closing the magnetic flux
  • possessing a thickness of min. 10 mm to ensure full flux closure
  • with a plane free of scratches
  • without any clearance between the magnet and steel
  • under axial force direction (90-degree angle)
  • at conditions approx. 20°C

Magnet lifting force in use – key factors

Holding efficiency is affected by specific conditions, mainly (from most important):
  • Distance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – note 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 – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Steel grade – ideal substrate is pure iron steel. Cast iron may attract less.
  • Smoothness – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Temperature – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with NdFeB magnets
Bodily injuries

Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Be careful!

Protect data

Avoid bringing magnets near a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Permanent damage

Regular neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Adults only

Absolutely store magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are life-threatening.

Allergic reactions

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, immediately stop working with magnets and use protective gear.

Machining danger

Dust generated during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Magnets are brittle

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets will cause them shattering into small pieces.

Medical implants

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Immense force

Exercise caution. Rare earth magnets attract from a distance and connect with huge force, often faster than you can move away.

Threat to navigation

Navigation devices and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the internal compass in your phone.

Attention! Want to know more? Read our article: Are neodymium magnets dangerous?