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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 simulation of the magnet - data

The following data represent the result of a mathematical calculation. Results rely on models for the class Nd2Fe14B. Actual performance might slightly differ from theoretical values. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs distance) - 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 pounds
9980.0 g / 97.9 N
warning
1 mm 2609 Gs
260.9 mT
8.85 kg / 19.50 pounds
8846.4 g / 86.8 N
warning
2 mm 2420 Gs
242.0 mT
7.61 kg / 16.78 pounds
7609.6 g / 74.7 N
warning
3 mm 2216 Gs
221.6 mT
6.38 kg / 14.07 pounds
6383.0 g / 62.6 N
warning
5 mm 1805 Gs
180.5 mT
4.23 kg / 9.33 pounds
4233.2 g / 41.5 N
warning
10 mm 991 Gs
99.1 mT
1.28 kg / 2.81 pounds
1275.9 g / 12.5 N
weak grip
15 mm 542 Gs
54.2 mT
0.38 kg / 0.84 pounds
381.4 g / 3.7 N
weak grip
20 mm 313 Gs
31.3 mT
0.13 kg / 0.28 pounds
127.2 g / 1.2 N
weak grip
30 mm 125 Gs
12.5 mT
0.02 kg / 0.04 pounds
20.4 g / 0.2 N
weak grip
50 mm 34 Gs
3.4 mT
0.00 kg / 0.00 pounds
1.5 g / 0.0 N
weak grip

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 pounds
1996.0 g / 19.6 N
1 mm Stal (~0.2) 1.77 kg / 3.90 pounds
1770.0 g / 17.4 N
2 mm Stal (~0.2) 1.52 kg / 3.36 pounds
1522.0 g / 14.9 N
3 mm Stal (~0.2) 1.28 kg / 2.81 pounds
1276.0 g / 12.5 N
5 mm Stal (~0.2) 0.85 kg / 1.87 pounds
846.0 g / 8.3 N
10 mm Stal (~0.2) 0.26 kg / 0.56 pounds
256.0 g / 2.5 N
15 mm Stal (~0.2) 0.08 kg / 0.17 pounds
76.0 g / 0.7 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

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
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 pounds
2994.0 g / 29.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
2.00 kg / 4.40 pounds
1996.0 g / 19.6 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
1.00 kg / 2.20 pounds
998.0 g / 9.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
4.99 kg / 11.00 pounds
4990.0 g / 49.0 N

Table 4: Material efficiency (saturation) - 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 pounds
998.0 g / 9.8 N
1 mm
25%
2.50 kg / 5.50 pounds
2495.0 g / 24.5 N
2 mm
50%
4.99 kg / 11.00 pounds
4990.0 g / 49.0 N
3 mm
75%
7.49 kg / 16.50 pounds
7485.0 g / 73.4 N
5 mm
100%
9.98 kg / 22.00 pounds
9980.0 g / 97.9 N
10 mm
100%
9.98 kg / 22.00 pounds
9980.0 g / 97.9 N
11 mm
100%
9.98 kg / 22.00 pounds
9980.0 g / 97.9 N
12 mm
100%
9.98 kg / 22.00 pounds
9980.0 g / 97.9 N

Table 5: Thermal stability (stability) - resistance threshold
MW 24x6 / N38

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

Table 6: Two magnets (attraction) - field range
MW 24x6 / N38

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

Table 7: Safety (HSE) (electronics) - 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
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: Impact energy (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: Coating parameters (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: Construction 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: 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%
Rust risk: 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

*Caution: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Steel saturation

*Thin metal sheet (e.g. 0.5mm PC case) drastically limits the holding force.

3. Temperature resistance

*For standard magnets, 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
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%
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: 010048-2026
Measurement Calculator
Force (pull)

Magnetic Induction

Other products

The offered product is an incredibly powerful rod magnet, produced from durable NdFeB material, which, at dimensions of Ø24x6 mm, guarantees maximum efficiency. The MW 24x6 / N38 model features high dimensional repeatability and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 9.98 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. 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 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., 24.1 mm) using epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets N38 are suitable 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 (Ø24x6), 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 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 secures it against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 6 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Benefits

Besides their immense field intensity, neodymium magnets offer the following advantages:
  • They retain attractive force for nearly 10 years – the drop is just ~1% (in theory),
  • They retain their magnetic properties even under external field action,
  • The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnets are characterized by exceptionally strong magnetic induction on the working surface,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
  • Thanks to versatility in shaping and the ability to adapt to specific needs,
  • Universal use in future technologies – they find application in hard drives, electromotive mechanisms, medical equipment, as well as technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in compact constructions

Cons

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • We suggest cover - magnetic mount, due to difficulties in creating threads inside the magnet and complicated forms.
  • Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small components of these products can complicate diagnosis medical after entering the body.
  • With budget limitations the cost of neodymium magnets is a challenge,

Pull force analysis

Maximum magnetic pulling forcewhat affects it?

The force parameter is a measurement result performed under specific, ideal conditions:
  • with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • whose transverse dimension equals approx. 10 mm
  • with an ideally smooth touching surface
  • without any clearance between the magnet and steel
  • under perpendicular force direction (90-degree angle)
  • in temp. approx. 20°C

Practical lifting capacity: influencing factors

Holding efficiency is influenced by working environment parameters, such as (from priority):
  • Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Plate material – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and holding force.
  • Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
  • Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet and the plate lowers the holding force.

Safe handling of neodymium magnets
Protective goggles

Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Phone sensors

Navigation devices and smartphones are extremely sensitive to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Nickel allergy

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, refrain from direct skin contact or select coated magnets.

Machining danger

Machining of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Medical interference

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Keep away from children

Always store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are fatal.

Serious injuries

Risk of injury: The pulling power is so immense that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

Keep away from computers

Do not bring magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Handling rules

Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.

Do not overheat magnets

Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and strength.

Attention! Looking for details? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98