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MW 14x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010024

GTIN/EAN: 5906301810230

Diameter Ø

14 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

2.31 g

Magnetization Direction

↑ axial

Load capacity

1.48 kg / 14.51 N

Magnetic Induction

170.27 mT / 1703 Gs

Coating

[NiCuNi] Nickel

0.898 with VAT / pcs + price for transport

0.730 ZŁ net + 23% VAT / pcs

bulk discounts:

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Weight as well as shape of neodymium magnets can be estimated with our force calculator.

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Product card - MW 14x2 / N38 - cylindrical magnet

Specification / characteristics - MW 14x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010024
GTIN/EAN 5906301810230
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 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 2.31 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.48 kg / 14.51 N
Magnetic Induction ~ ? 170.27 mT / 1703 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 14x2 / 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 modeling of the assembly - report

These data represent the result of a mathematical calculation. Values were calculated on models for the class Nd2Fe14B. Actual performance might slightly differ from theoretical values. Please consider these data as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs distance) - power drop
MW 14x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1702 Gs
170.2 mT
1.48 kg / 3.26 lbs
1480.0 g / 14.5 N
weak grip
1 mm 1565 Gs
156.5 mT
1.25 kg / 2.76 lbs
1251.7 g / 12.3 N
weak grip
2 mm 1373 Gs
137.3 mT
0.96 kg / 2.12 lbs
962.5 g / 9.4 N
weak grip
3 mm 1161 Gs
116.1 mT
0.69 kg / 1.52 lbs
688.9 g / 6.8 N
weak grip
5 mm 780 Gs
78.0 mT
0.31 kg / 0.69 lbs
311.0 g / 3.1 N
weak grip
10 mm 276 Gs
27.6 mT
0.04 kg / 0.09 lbs
39.0 g / 0.4 N
weak grip
15 mm 115 Gs
11.5 mT
0.01 kg / 0.01 lbs
6.7 g / 0.1 N
weak grip
20 mm 56 Gs
5.6 mT
0.00 kg / 0.00 lbs
1.6 g / 0.0 N
weak grip
30 mm 19 Gs
1.9 mT
0.00 kg / 0.00 lbs
0.2 g / 0.0 N
weak grip
50 mm 4 Gs
0.4 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
weak grip

Table 2: Slippage capacity (vertical surface)
MW 14x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.30 kg / 0.65 lbs
296.0 g / 2.9 N
1 mm Stal (~0.2) 0.25 kg / 0.55 lbs
250.0 g / 2.5 N
2 mm Stal (~0.2) 0.19 kg / 0.42 lbs
192.0 g / 1.9 N
3 mm Stal (~0.2) 0.14 kg / 0.30 lbs
138.0 g / 1.4 N
5 mm Stal (~0.2) 0.06 kg / 0.14 lbs
62.0 g / 0.6 N
10 mm Stal (~0.2) 0.01 kg / 0.02 lbs
8.0 g / 0.1 N
15 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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: Wall mounting (shearing) - behavior on slippery surfaces
MW 14x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.44 kg / 0.98 lbs
444.0 g / 4.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.30 kg / 0.65 lbs
296.0 g / 2.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.15 kg / 0.33 lbs
148.0 g / 1.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.74 kg / 1.63 lbs
740.0 g / 7.3 N

Table 4: Steel thickness (saturation) - power losses
MW 14x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.15 kg / 0.33 lbs
148.0 g / 1.5 N
1 mm
25%
0.37 kg / 0.82 lbs
370.0 g / 3.6 N
2 mm
50%
0.74 kg / 1.63 lbs
740.0 g / 7.3 N
3 mm
75%
1.11 kg / 2.45 lbs
1110.0 g / 10.9 N
5 mm
100%
1.48 kg / 3.26 lbs
1480.0 g / 14.5 N
10 mm
100%
1.48 kg / 3.26 lbs
1480.0 g / 14.5 N
11 mm
100%
1.48 kg / 3.26 lbs
1480.0 g / 14.5 N
12 mm
100%
1.48 kg / 3.26 lbs
1480.0 g / 14.5 N

Table 5: Thermal resistance (material behavior) - power drop
MW 14x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.48 kg / 3.26 lbs
1480.0 g / 14.5 N
OK
40 °C -2.2% 1.45 kg / 3.19 lbs
1447.4 g / 14.2 N
OK
60 °C -4.4% 1.41 kg / 3.12 lbs
1414.9 g / 13.9 N
80 °C -6.6% 1.38 kg / 3.05 lbs
1382.3 g / 13.6 N
100 °C -28.8% 1.05 kg / 2.32 lbs
1053.8 g / 10.3 N

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 14x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.75 kg / 6.06 lbs
3 073 Gs
0.41 kg / 0.91 lbs
413 g / 4.0 N
N/A
1 mm 2.56 kg / 5.65 lbs
3 287 Gs
0.38 kg / 0.85 lbs
385 g / 3.8 N
2.31 kg / 5.09 lbs
~0 Gs
2 mm 2.33 kg / 5.13 lbs
3 131 Gs
0.35 kg / 0.77 lbs
349 g / 3.4 N
2.09 kg / 4.61 lbs
~0 Gs
3 mm 2.06 kg / 4.54 lbs
2 947 Gs
0.31 kg / 0.68 lbs
309 g / 3.0 N
1.85 kg / 4.09 lbs
~0 Gs
5 mm 1.52 kg / 3.36 lbs
2 535 Gs
0.23 kg / 0.50 lbs
229 g / 2.2 N
1.37 kg / 3.02 lbs
~0 Gs
10 mm 0.58 kg / 1.27 lbs
1 561 Gs
0.09 kg / 0.19 lbs
87 g / 0.9 N
0.52 kg / 1.15 lbs
~0 Gs
20 mm 0.07 kg / 0.16 lbs
552 Gs
0.01 kg / 0.02 lbs
11 g / 0.1 N
0.07 kg / 0.14 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
62 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
38 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
25 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
17 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
12 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
9 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs

Table 7: Hazards (implants) - precautionary measures
MW 14x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.0 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Timepiece 20 Gs (2.0 mT) 3.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Car key 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Dynamics (cracking risk) - collision effects
MW 14x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 25.94 km/h
(7.21 m/s)
0.06 J
30 mm 44.22 km/h
(12.28 m/s)
0.17 J
50 mm 57.08 km/h
(15.86 m/s)
0.29 J
100 mm 80.72 km/h
(22.42 m/s)
0.58 J

Table 9: Coating parameters (durability)
MW 14x2 / 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 14x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 247 Mx 32.5 µWb
Pc Coefficient 0.22 Low (Flat)

Table 11: Underwater work (magnet fishing)
MW 14x2 / N38

Environment Effective steel pull Effect
Air (land) 1.48 kg Standard
Water (riverbed) 1.69 kg
(+0.21 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. Wall mount (shear)

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

2. Efficiency vs thickness

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

3. Thermal stability

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.22

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.

Technical and environmental data
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%
Ecology and recycling (GPSR)
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: 010024-2026
Measurement Calculator
Pulling force

Field Strength

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This product is an extremely powerful cylinder magnet, composed of advanced NdFeB material, which, at dimensions of Ø14x2 mm, guarantees maximum efficiency. The MW 14x2 / N38 model boasts high dimensional repeatability and industrial build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 1.48 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating effectively protects 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 14.51 N with a weight of only 2.31 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 precision component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Magnets NdFeB grade N38 are strong enough for the majority of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø14x2), 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 14 mm and height 2 mm. The key parameter here is the holding force amounting to approximately 1.48 kg (force ~14.51 N), which, with such compact dimensions, proves the high power of the NdFeB material. 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 2 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 through the diameter if your project requires it.

Pros as well as cons of Nd2Fe14B magnets.

Strengths

Besides their durability, neodymium magnets are valued for these benefits:
  • Their magnetic field is maintained, and after approximately ten years it decreases only by ~1% (theoretically),
  • Neodymium magnets remain remarkably resistant to loss of magnetic properties caused by external magnetic fields,
  • Thanks to the glossy finish, the layer of nickel, gold-plated, or silver-plated gives an elegant appearance,
  • They are known for high magnetic induction at the operating surface, which improves attraction properties,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of detailed forming as well as adapting to precise requirements,
  • Versatile presence in advanced technology sectors – they are commonly used in mass storage devices, electric motors, medical devices, and modern systems.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of neodymium magnets:
  • At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets lose 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 durability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • We recommend casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated forms.
  • Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Furthermore, small components of these products are able to complicate diagnosis medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Magnetic strength at its maximum – what affects it?

Breakaway force was determined for the most favorable conditions, assuming:
  • using a sheet made of high-permeability steel, acting as a ideal flux conductor
  • possessing a thickness of min. 10 mm to avoid saturation
  • with an ground touching surface
  • under conditions of no distance (surface-to-surface)
  • during detachment in a direction perpendicular to the mounting surface
  • at ambient temperature approx. 20 degrees Celsius

Key elements affecting lifting force

In practice, the real power depends on several key aspects, listed from crucial:
  • Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Load vector – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material type – the best choice is pure iron steel. Cast iron may attract less.
  • Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
  • Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the holding force.

Precautions when working with NdFeB magnets
GPS and phone interference

Remember: rare earth magnets generate a field that disrupts precision electronics. Keep a separation from your mobile, tablet, and navigation systems.

Finger safety

Protect your hands. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Do not give to children

Always store magnets away from children. Ingestion danger is significant, and the effects of magnets connecting inside the body are tragic.

Mechanical processing

Drilling and cutting of NdFeB material carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Do not overheat magnets

Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Beware of splinters

Neodymium magnets are sintered ceramics, which means they are very brittle. Collision of two magnets leads to them breaking into shards.

Conscious usage

Handle with care. Neodymium magnets act from a distance and connect with huge force, often quicker than you can react.

Implant safety

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Avoid contact if allergic

Nickel alert: The nickel-copper-nickel coating consists of nickel. If redness happens, immediately stop handling magnets and use protective gear.

Threat to electronics

Intense magnetic fields can erase data on payment cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Security! Looking for details? Check our post: Are neodymium magnets dangerous?