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MW 14.9x10 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010023

GTIN/EAN: 5906301810223

5.00
Load capacity 7.60 kg / 74.57 N Magnetic Induction 496.78 mT / 4968 Gs
Diameter Ø
14.9 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
13.08 g
Magnetization Direction
→ diametrical
Coating
[NiCuNi] Nickel
technical parameters »

8.24 zł with VAT / pcs + price for transport

6.70 zł net + 23% VAT / pcs

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Technical parameters - 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

Technical simulation of the magnet - data

Presented values are the result of a mathematical analysis. Results were calculated on models for the material Nd2Fe14B. Real-world parameters may differ. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs distance) - 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 pounds
7600.0 g / 74.6 N
 medium risk
1 mm 4309 Gs
430.9 mT
 5.72 kg / 12.62 pounds
5722.6 g / 56.1 N
 medium risk
2 mm 3660 Gs
366.0 mT
 4.13 kg / 9.10 pounds
4129.1 g / 40.5 N
 medium risk
3 mm 3063 Gs
306.3 mT
 2.89 kg / 6.38 pounds
2892.7 g / 28.4 N
 medium risk
5 mm 2098 Gs
209.8 mT
 1.36 kg / 2.99 pounds
1356.5 g / 13.3 N
 weak grip
10 mm 838 Gs
83.8 mT
 0.22 kg / 0.48 pounds
216.5 g / 2.1 N
 weak grip
15 mm 389 Gs
38.9 mT
 0.05 kg / 0.10 pounds
46.6 g / 0.5 N
 weak grip
20 mm 207 Gs
20.7 mT
 0.01 kg / 0.03 pounds
13.2 g / 0.1 N
 weak grip
30 mm 78 Gs
7.8 mT
 0.00 kg / 0.00 pounds
1.9 g / 0.0 N
 weak grip
50 mm 20 Gs
2.0 mT
 0.00 kg / 0.00 pounds
0.1 g / 0.0 N
 weak grip
Magnetic force drops drastically per each millimeter of distance. Note that every additional insulation layer (e.g., dirt, varnish, veneer) strongly reduces the pull force. Magnets hold strongest in perfect adhesion; distance kills the force. Analyze how quickly the parameters plummet, when the product does not adhere flatly to the metal substrate. When designing the arrangement, avoid redundant distances.

Table 2: Shear hold (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 pounds
1520.0 g / 14.9 N
1 mm Stal (~0.2) 1.14 kg / 2.52 pounds
1144.0 g / 11.2 N
2 mm Stal (~0.2) 0.83 kg / 1.82 pounds
826.0 g / 8.1 N
3 mm Stal (~0.2) 0.58 kg / 1.27 pounds
578.0 g / 5.7 N
5 mm Stal (~0.2) 0.27 kg / 0.60 pounds
272.0 g / 2.7 N
10 mm Stal (~0.2) 0.04 kg / 0.10 pounds
44.0 g / 0.4 N
15 mm Stal (~0.2) 0.01 kg / 0.02 pounds
10.0 g / 0.1 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
2.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
The following data defines the theoretical force necessary to initiate the sliding of the magnet down on a upright steel plate (assuming standard friction). This parameter is relative to the gap size between the magnet and the surface.

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 pounds
2280.0 g / 22.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
1.52 kg / 3.35 pounds
1520.0 g / 14.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.76 kg / 1.68 pounds
760.0 g / 7.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
3.80 kg / 8.38 pounds
3800.0 g / 37.3 N
When placing a magnet on a vertical wall (e.g., a board), it you can count on only about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient mean that holders slip faster than they pop off the substrate. Designing a wall mount? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a much lighter weight. Using a rubber coating can effectively increase the grip.

Table 4: Steel thickness (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 pounds
760.0 g / 7.5 N
1 mm
25%
 1.90 kg / 4.19 pounds
1900.0 g / 18.6 N
2 mm
50%
 3.80 kg / 8.38 pounds
3800.0 g / 37.3 N
3 mm
75%
 5.70 kg / 12.57 pounds
5700.0 g / 55.9 N
5 mm
100%
 7.60 kg / 16.76 pounds
7600.0 g / 74.6 N
10 mm
100%
 7.60 kg / 16.76 pounds
7600.0 g / 74.6 N
11 mm
100%
 7.60 kg / 16.76 pounds
7600.0 g / 74.6 N
12 mm
100%
 7.60 kg / 16.76 pounds
7600.0 g / 74.6 N
A thin metal plate is incapable of take in the full magnetic flux, which wastes potential of the holder. If you mount a strong magnet to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To achieve the maximum of this neodymium's potential, you need a suitably thick backing of metal. The saturation phenomenon causes that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal stability (stability) - 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 pounds
7600.0 g / 74.6 N
 OK
40 °C -2.2% 7.43 kg / 16.39 pounds
7432.8 g / 72.9 N
 OK
60 °C -4.4% 7.27 kg / 16.02 pounds
7265.6 g / 71.3 N
 OK
80 °C -6.6% 7.10 kg / 15.65 pounds
7098.4 g / 69.6 N
100 °C -28.8% 5.41 kg / 11.93 pounds
5411.2 g / 53.1 N
Ordinary NdFeB products change their properties parameters above the temperature limit. Avoid high temperatures – excessive heat can permanently damage this magnet. With increasing heat, the neodymium's force temporarily decreases. Avoid using this product in hot environments higher than its safe range. Too high temperature will result in destruction of magnetism.
*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) may lose charge permanently sooner compared to rod magnets. Warning indicator in the table indicates permanent field degradation for this particular item.

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

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 26.50 kg / 58.43 pounds
5 802 Gs
3.98 kg / 8.76 pounds
3975 g / 39.0 N
 N/A
1 mm 23.16 kg / 51.05 pounds
9 283 Gs
3.47 kg / 7.66 pounds
3474 g / 34.1 N
 20.84 kg / 45.95 pounds
~0 Gs
2 mm 19.96 kg / 44.00 pounds
8 617 Gs
2.99 kg / 6.60 pounds
2993 g / 29.4 N
 17.96 kg / 39.60 pounds
~0 Gs
3 mm 17.03 kg / 37.54 pounds
7 959 Gs
2.55 kg / 5.63 pounds
2554 g / 25.1 N
 15.32 kg / 33.78 pounds
~0 Gs
5 mm 12.09 kg / 26.65 pounds
6 707 Gs
1.81 kg / 4.00 pounds
1813 g / 17.8 N
 10.88 kg / 23.99 pounds
~0 Gs
10 mm 4.73 kg / 10.43 pounds
4 196 Gs
0.71 kg / 1.56 pounds
710 g / 7.0 N
 4.26 kg / 9.39 pounds
~0 Gs
20 mm 0.76 kg / 1.66 pounds
1 676 Gs
0.11 kg / 0.25 pounds
113 g / 1.1 N
 0.68 kg / 1.50 pounds
~0 Gs
50 mm 0.02 kg / 0.04 pounds
245 Gs
0.00 kg / 0.01 pounds
2 g / 0.0 N
 0.01 kg / 0.03 pounds
~0 Gs
60 mm 0.01 kg / 0.01 pounds
156 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.01 pounds
105 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
74 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
54 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
41 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
 0.00 kg / 0.00 pounds
~0 Gs
Two strong neodymiums attract each other from a much further distance than a magnet and steel combination. Such a system of two magnets creates a more powerful interaction and a further horizon of operation. Designing a strong closure? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the impact force is extreme. The levitation is a bit weaker than the connection force, but still significant.
*The magnetic induction between like poles reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Important: Results refer to friction force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - precautionary measures
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
Timepiece 20 Gs (2.0 mT) 5.5 cm
Mobile device 40 Gs (4.0 mT) 4.0 cm
Car key 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
A strong magnetic field poses a serious hazard to electronic devices and medical implants. These neodymiums generate a flux that destroys function of digital equipment. Notice: the unseen radiation penetrates the body and plastic. Increased vigilance must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

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

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 20.75 km/h
(5.76 m/s)
 0.22 J
30 mm 21.09 km/h
(5.86 m/s)
 0.22 J
50 mm 21.09 km/h
(5.86 m/s)
 0.22 J
100 mm 21.09 km/h
(5.86 m/s)
 0.22 J
Neodymium magnets are very brittle – a violent impact against metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely becomes dangerous. Striking energy can cause material chips or painful pinches to fingers. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when playing with large magnets.

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)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MW 14.9x10 / N38

Parameter Value SI Unit / Description
Magnetic Flux 8 732 Mx 87.3 µWb
Pc Coefficient 0.71 High (Stable)
Flux value passing through the magnet pole. Essential parameter for generator designers and motors. The Pc coefficient determines the magnet's operating point.

Table 11: Submerged application
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%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

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

2. Steel saturation

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

3. Thermal stability

*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

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 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: 010023-2026
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The presented product is a very 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 model features an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 7.60 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 74.57 N with a weight of only 13.08 g, this rod 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, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. 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 key parameter here is the lifting capacity amounting to approximately 7.60 kg (force ~74.57 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, 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 14.9 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.

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They have unchanged lifting capacity, and over around ten years their attraction force decreases symbolically – ~1% (according to theory),
  • Neodymium magnets are distinguished by highly resistant to magnetic field loss caused by external field sources,
  • The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to look better,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to freedom in designing and the ability to adapt to client solutions,
  • Versatile presence in innovative solutions – they are commonly used in data components, brushless drives, diagnostic systems, and modern systems.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of neodymium magnets:
  • At very strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets decrease 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
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating nuts and complex shapes in magnets, we recommend using casing - magnetic holder.
  • Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that small elements of these devices are able to complicate diagnosis medical when they are in the body.
  • With mass production the cost of neodymium magnets is a challenge,

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

Breakaway force is the result of a measurement for the most favorable conditions, taking into account:
  • on a base made of structural steel, perfectly concentrating the magnetic field
  • possessing a massiveness of min. 10 mm to avoid saturation
  • with a plane cleaned and smooth
  • with direct contact (no coatings)
  • under vertical force vector (90-degree angle)
  • at room temperature

Practical lifting capacity: influencing factors

In practice, the real power is determined by several key aspects, ranked from most significant:
  • Clearance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
  • Steel thickness – too thin plate does not accept the full field, causing part of the power to be wasted to the other side.
  • Material composition – different alloys attracts identically. High carbon content worsen the attraction effect.
  • Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was determined by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the holding force is lower. In addition, even a slight gap between the magnet and the plate lowers the holding force.

Precautions when working with neodymium magnets
Data carriers

Avoid bringing magnets close to a wallet, computer, or TV. The magnetic field can destroy these devices and wipe information from cards.

Nickel allergy

Some people suffer from a contact allergy to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in skin redness. It is best to wear safety gloves.

Respect the power

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

GPS and phone interference

Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your phone, tablet, and navigation systems.

Do not give to children

Strictly store magnets away from children. Ingestion danger is high, and the consequences of magnets connecting inside the body are fatal.

Warning for heart patients

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

Eye protection

Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Maximum temperature

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

Fire risk

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

Finger safety

Danger of trauma: The attraction force is so immense that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Security! Learn more about risks in the article: Magnet Safety Guide.