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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

view technical data »

0.898 ZŁ with VAT / pcs + price for transport

0.730 ZŁ net + 23% VAT / pcs

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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

Engineering analysis of the assembly - data

The following values represent the direct effect of a engineering calculation. Values are based on models for the class Nd2Fe14B. Operational parameters may differ from theoretical values. Use these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - 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
Pulling power drops drastically with every mm of spacing. Remember that even the smallest gap (e.g., dirt, paint, rust) significantly reduces the pull force. Magnetic products work strongest during direct contact; distance kills the power. See how quickly the load capacity fall, when the product does not adhere flatly to the metal substrate. When calculating the assembly, discard redundant distances.

Table 2: Vertical force (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
This section shows the approximate force required to cause the sliding of the magnet downwards along a upright metal surface (considering typical friction coefficient). This value is relative to the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - 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
When placing a holder on a upright plane (e.g., a fridge), it will only hold barely about 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient mean that products slip faster than they pop off the substrate. Want to create a wall mount? Note that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a much lighter cargo. Utilizing a rubberized layer can significantly raise the stability.

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
A too thin steel is not enough to conduct the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To squeeze the maximum of this magnet's power, you need a suitably thick element of metal. The saturation phenomenon causes that on sheet metal structures (e.g., appliance housings), the magnet works worse. We suggest choosing the steel dimension based on the following data.

Table 5: Thermal stability (material behavior) - resistance threshold
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
Standard neodymium magnets irreversibly lose strength past the thermal threshold. Protect against heat – excessive heat can permanently damage this product. As the temperature rises, the magnet's force briefly decreases. Do not use this product in hot environments exceeding its safe range. Too high temperature will result in destruction of magnetic properties.
*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) are more susceptible to demagnetization sooner compared to rod magnets. The danger warning in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 14x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (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
Two magnets attract each other from a wider radius than a magnet and sheet setup. The connection of magnet-to-magnet generates a stronger field and a wider radius of performance. Want to build a solid fastener? Use a pair of magnets instead of a neodymium and a steel. Be careful that when connecting a pair of magnets, the pinch force is huge. The repulsion force is slightly lower than the connection force, but still large.
*The magnetic induction between like poles drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
Important: Results refer to friction force of two same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - warnings
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
Mechanical watch 20 Gs (2.0 mT) 3.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.5 cm
Remote 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
Extremely neodym field is a large risk to electronics as well as pacemakers. These neodymiums produce a flux that disrupts operation of digital equipment. Remember: the unseen radiation passes through tissues and housings. Increased vigilance must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
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
NdFeB products are prone to chipping – a strong collision with metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can trigger coating fragments or injury to fingers. Hold the magnet firmly during mounting so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Surface protection spec
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)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 14x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 247 Mx 32.5 µWb
Pc Coefficient 0.22 Low (Flat)
Flux value passing through the pole surface. Key data in coil applications as well as sensors. Pc value determines the working geometry.

Table 11: Physics of underwater searching
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%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.
1. Shear force

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

2. Steel saturation

*Thin metal sheet (e.g. computer case) drastically weakens the holding force.

3. Power loss vs temp

*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) = 0.22

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
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
Magnet Unit Converter
Magnet pull force
Magnetic Field
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The presented product is a very strong rod magnet, produced from advanced NdFeB material, which, with dimensions of Ø14x2 mm, guarantees maximum efficiency. The MW 14x2 / N38 model features an accuracy of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 1.48 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. 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 low weight is crucial.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in automation, specialized industrial adhesives 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 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 available off-the-shelf in our store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 14 mm and height 2 mm. The value of 14.51 N means that the magnet is capable of holding a weight many times exceeding its own mass of 2.31 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 14 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 diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They retain attractive force for nearly 10 years – the loss is just ~1% (based on simulations),
  • They retain their magnetic properties even under strong external field,
  • Thanks to the elegant finish, the layer of Ni-Cu-Ni, gold, or silver-plated gives an elegant appearance,
  • They show high magnetic induction at the operating surface, which improves attraction properties,
  • 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...
  • Thanks to freedom in forming and the capacity to adapt to client solutions,
  • Wide application in innovative solutions – they are commonly used in data components, electromotive mechanisms, advanced medical instruments, also other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Problematic aspects of neodymium magnets and ways of using them
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • Due to limitations in realizing threads and complicated forms in magnets, we propose using cover - magnetic holder.
  • Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets are able to be problematic in diagnostics medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Holding force of 1.48 kg is a theoretical maximum value conducted under the following configuration:
  • with the application of a yoke made of special test steel, ensuring maximum field concentration
  • whose transverse dimension reaches at least 10 mm
  • with an ground contact surface
  • without any air gap between the magnet and steel
  • under perpendicular application of breakaway force (90-degree angle)
  • at temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

In real-world applications, the actual lifting capacity is determined by several key aspects, listed from crucial:
  • Distance – the presence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Angle of force application – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
  • Material composition – not every steel reacts the same. Alloy additives worsen the attraction effect.
  • Surface structure – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Temperature influence – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

H&S for magnets
Data carriers

Powerful magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.

Shattering risk

Protect your eyes. Magnets can explode upon violent connection, launching shards into the air. Wear goggles.

Medical interference

People with a ICD have to maintain an safe separation from magnets. The magnetism can interfere with the functioning of the life-saving device.

Permanent damage

Standard neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.

Fire risk

Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Handling rules

Handle magnets consciously. Their powerful strength can shock even professionals. Stay alert and do not underestimate their power.

Impact on smartphones

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Physical harm

Big blocks can smash fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Nickel allergy

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, cease handling magnets and wear gloves.

Swallowing risk

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Store away from kids and pets.

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