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MW 14.9x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010023

GTIN/EAN: 5906301810223

5.00

Diameter Ø

14.9 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

13.08 g

Magnetization Direction

→ diametrical

Load capacity

7.60 kg / 74.57 N

Magnetic Induction

496.78 mT / 4968 Gs

Coating

[NiCuNi] Nickel

8.24 with VAT / pcs + price for transport

6.70 ZŁ net + 23% VAT / pcs

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Lifting power and structure of magnetic components can be reviewed using our modular calculator.

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Detailed specification - MW 14.9x10 / N38 - cylindrical magnet

Specification / characteristics - MW 14.9x10 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010023
GTIN/EAN 5906301810223
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 14.9 mm [±0,1 mm]
Height 10 mm [±0,1 mm]
Weight 13.08 g
Magnetization Direction → diametrical
Load capacity ~ ? 7.60 kg / 74.57 N
Magnetic Induction ~ ? 496.78 mT / 4968 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 14.9x10 / 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 analysis of the assembly - report

These values represent the direct effect of a engineering calculation. Results were calculated on models for the class Nd2Fe14B. Actual conditions may differ from theoretical values. Please consider these calculations as a supplementary guide for designers.

Table 1: Static force (force vs gap) - characteristics
MW 14.9x10 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 4965 Gs
496.5 mT
7.60 kg / 16.76 lbs
7600.0 g / 74.6 N
strong
1 mm 4309 Gs
430.9 mT
5.72 kg / 12.62 lbs
5722.6 g / 56.1 N
strong
2 mm 3660 Gs
366.0 mT
4.13 kg / 9.10 lbs
4129.1 g / 40.5 N
strong
3 mm 3063 Gs
306.3 mT
2.89 kg / 6.38 lbs
2892.7 g / 28.4 N
strong
5 mm 2098 Gs
209.8 mT
1.36 kg / 2.99 lbs
1356.5 g / 13.3 N
safe
10 mm 838 Gs
83.8 mT
0.22 kg / 0.48 lbs
216.5 g / 2.1 N
safe
15 mm 389 Gs
38.9 mT
0.05 kg / 0.10 lbs
46.6 g / 0.5 N
safe
20 mm 207 Gs
20.7 mT
0.01 kg / 0.03 lbs
13.2 g / 0.1 N
safe
30 mm 78 Gs
7.8 mT
0.00 kg / 0.00 lbs
1.9 g / 0.0 N
safe
50 mm 20 Gs
2.0 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
safe

Table 2: Sliding force (vertical surface)
MW 14.9x10 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 1.52 kg / 3.35 lbs
1520.0 g / 14.9 N
1 mm Stal (~0.2) 1.14 kg / 2.52 lbs
1144.0 g / 11.2 N
2 mm Stal (~0.2) 0.83 kg / 1.82 lbs
826.0 g / 8.1 N
3 mm Stal (~0.2) 0.58 kg / 1.27 lbs
578.0 g / 5.7 N
5 mm Stal (~0.2) 0.27 kg / 0.60 lbs
272.0 g / 2.7 N
10 mm Stal (~0.2) 0.04 kg / 0.10 lbs
44.0 g / 0.4 N
15 mm Stal (~0.2) 0.01 kg / 0.02 lbs
10.0 g / 0.1 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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 14.9x10 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
2.28 kg / 5.03 lbs
2280.0 g / 22.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.52 kg / 3.35 lbs
1520.0 g / 14.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.76 kg / 1.68 lbs
760.0 g / 7.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.80 kg / 8.38 lbs
3800.0 g / 37.3 N

Table 4: Material efficiency (saturation) - power losses
MW 14.9x10 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.76 kg / 1.68 lbs
760.0 g / 7.5 N
1 mm
25%
1.90 kg / 4.19 lbs
1900.0 g / 18.6 N
2 mm
50%
3.80 kg / 8.38 lbs
3800.0 g / 37.3 N
3 mm
75%
5.70 kg / 12.57 lbs
5700.0 g / 55.9 N
5 mm
100%
7.60 kg / 16.76 lbs
7600.0 g / 74.6 N
10 mm
100%
7.60 kg / 16.76 lbs
7600.0 g / 74.6 N
11 mm
100%
7.60 kg / 16.76 lbs
7600.0 g / 74.6 N
12 mm
100%
7.60 kg / 16.76 lbs
7600.0 g / 74.6 N

Table 5: Thermal stability (material behavior) - power drop
MW 14.9x10 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 7.60 kg / 16.76 lbs
7600.0 g / 74.6 N
OK
40 °C -2.2% 7.43 kg / 16.39 lbs
7432.8 g / 72.9 N
OK
60 °C -4.4% 7.27 kg / 16.02 lbs
7265.6 g / 71.3 N
OK
80 °C -6.6% 7.10 kg / 15.65 lbs
7098.4 g / 69.6 N
100 °C -28.8% 5.41 kg / 11.93 lbs
5411.2 g / 53.1 N

Table 6: Two magnets (attraction) - forces in the system
MW 14.9x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 26.50 kg / 58.43 lbs
5 802 Gs
3.98 kg / 8.76 lbs
3975 g / 39.0 N
N/A
1 mm 23.16 kg / 51.05 lbs
9 283 Gs
3.47 kg / 7.66 lbs
3474 g / 34.1 N
20.84 kg / 45.95 lbs
~0 Gs
2 mm 19.96 kg / 44.00 lbs
8 617 Gs
2.99 kg / 6.60 lbs
2993 g / 29.4 N
17.96 kg / 39.60 lbs
~0 Gs
3 mm 17.03 kg / 37.54 lbs
7 959 Gs
2.55 kg / 5.63 lbs
2554 g / 25.1 N
15.32 kg / 33.78 lbs
~0 Gs
5 mm 12.09 kg / 26.65 lbs
6 707 Gs
1.81 kg / 4.00 lbs
1813 g / 17.8 N
10.88 kg / 23.99 lbs
~0 Gs
10 mm 4.73 kg / 10.43 lbs
4 196 Gs
0.71 kg / 1.56 lbs
710 g / 7.0 N
4.26 kg / 9.39 lbs
~0 Gs
20 mm 0.76 kg / 1.66 lbs
1 676 Gs
0.11 kg / 0.25 lbs
113 g / 1.1 N
0.68 kg / 1.50 lbs
~0 Gs
50 mm 0.02 kg / 0.04 lbs
245 Gs
0.00 kg / 0.01 lbs
2 g / 0.0 N
0.01 kg / 0.03 lbs
~0 Gs
60 mm 0.01 kg / 0.01 lbs
156 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.01 lbs
105 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
74 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
90 mm 0.00 kg / 0.00 lbs
54 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
100 mm 0.00 kg / 0.00 lbs
41 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs

Table 7: Hazards (implants) - warnings
MW 14.9x10 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 8.5 cm
Hearing aid 10 Gs (1.0 mT) 6.5 cm
Mechanical watch 20 Gs (2.0 mT) 5.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 4.0 cm
Remote 50 Gs (5.0 mT) 4.0 cm
Payment card 400 Gs (40.0 mT) 1.5 cm
HDD hard drive 600 Gs (60.0 mT) 1.5 cm

Table 8: Collisions (kinetic energy) - warning
MW 14.9x10 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.74 km/h
(6.87 m/s)
0.31 J
30 mm 42.11 km/h
(11.70 m/s)
0.89 J
50 mm 54.36 km/h
(15.10 m/s)
1.49 J
100 mm 76.87 km/h
(21.35 m/s)
2.98 J

Table 9: Coating parameters (durability)
MW 14.9x10 / 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 (Pc)
MW 14.9x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 8 732 Mx 87.3 µWb
Pc Coefficient 0.71 High (Stable)

Table 11: Underwater work (magnet fishing)
MW 14.9x10 / N38

Environment Effective steel pull Effect
Air (land) 7.60 kg Standard
Water (riverbed) 8.70 kg
(+1.10 kg buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Sliding resistance

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

2. Efficiency vs thickness

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.71

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.

Engineering data and GPSR
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: 010023-2026
Magnet Unit Converter
Pulling force

Magnetic Field

Other proposals

The presented product is an exceptionally strong cylinder magnet, composed of modern NdFeB material, which, with dimensions of Ø14.9x10 mm, guarantees the highest energy density. The MW 14.9x10 / N38 component is characterized by an accuracy of ±0.1mm and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 7.60 kg), this product is in stock from our warehouse in Poland, ensuring rapid 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 perfect 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 74.57 N with a weight of only 13.08 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
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., 14.9.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability 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 the strongest magnets in the same volume (Ø14.9x10), 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 14.9 mm and height 10 mm. The value of 74.57 N means that the magnet is capable of holding a weight many times exceeding its own mass of 13.08 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 10 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 diametrically if your project requires it.

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Besides their high retention, neodymium magnets are valued for these 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 distinguished by highly resistant to loss of magnetic properties caused by external magnetic fields,
  • Thanks to the shiny finish, the plating of nickel, gold-plated, or silver-plated gives an clean appearance,
  • Magnetic induction on the working layer of the magnet is impressive,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Possibility of accurate modeling and adapting to specific requirements,
  • Universal use in high-tech industry – they are utilized in magnetic memories, motor assemblies, advanced medical instruments, also modern systems.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Cons

Drawbacks and weaknesses of neodymium magnets: tips and applications.
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of producing nuts in the magnet and complicated forms - preferred is a housing - magnetic holder.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child health protection. Additionally, small components of these devices can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Breakaway strength of the magnet in ideal conditionswhat it depends on?

The lifting capacity listed is a measurement result conducted under specific, ideal conditions:
  • on a plate made of mild steel, perfectly concentrating the magnetic field
  • with a thickness of at least 10 mm
  • with a surface cleaned and smooth
  • under conditions of gap-free contact (surface-to-surface)
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

Lifting capacity in practice – influencing factors

Real force is influenced by specific conditions, including (from priority):
  • Clearance – the presence of any layer (paint, dirt, gap) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
  • Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Thermal environment – temperature increase causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate decreases the holding force.

Safety rules for work with neodymium magnets
Protect data

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Finger safety

Pinching hazard: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Use thick gloves.

GPS and phone interference

A powerful magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Maintain magnets near a smartphone to prevent damaging the sensors.

Danger to pacemakers

For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Danger to the youngest

These products are not intended for children. Eating multiple magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates urgent medical intervention.

Heat warning

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Fragile material

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. We recommend safety glasses.

Handling rules

Handle with care. Neodymium magnets attract from a distance and snap with huge force, often faster than you can react.

Flammability

Mechanical processing of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Avoid contact if allergic

A percentage of the population have a sensitization to Ni, which is the standard coating for NdFeB magnets. Frequent touching might lead to a rash. We recommend wear safety gloves.

Warning! Learn more 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