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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

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8.24 ZŁ with VAT / pcs + price for transport

6.70 ZŁ net + 23% VAT / pcs

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Technical details - 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

Engineering modeling of the magnet - technical parameters

Presented data constitute the result of a physical calculation. Results rely on models for the material Nd2Fe14B. Operational performance may differ. Treat these calculations as a supplementary guide for designers.

Table 1: Static pull force (pull vs distance) - power drop
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
 strong
1 mm 4309 Gs
430.9 mT
 5.72 kg / 12.62 pounds
5722.6 g / 56.1 N
 strong
2 mm 3660 Gs
366.0 mT
 4.13 kg / 9.10 pounds
4129.1 g / 40.5 N
 strong
3 mm 3063 Gs
306.3 mT
 2.89 kg / 6.38 pounds
2892.7 g / 28.4 N
 strong
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
Grip strength decreases sharply with every subsequent millimeter of gap. Remember that even a very thin break (e.g., dirt, varnish, dust) strongly diminishes the holding power. Magnets operate most effectively in perfect adhesion; air break nullifies the power. Observe how quickly the load capacity fall, when the product does not touch flatly to the metal substrate. When calculating the assembly, eliminate additional spacers.

Table 2: Slippage 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
This section defines the approximate shear load needed to cause the slippage of the magnet down along a vertical metal surface (assuming typical friction). The holding force is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - 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 upright plane (e.g., a car body), it you can count on barely about 1/5 of nominal attraction strength. Gravitational force and a low friction coefficient cause that products slide down easier than they pull off. Planning a wall mount? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a much lighter cargo. Application of an anti-slip pad can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
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 conduct the full magnetic flux, which wastes potential of the magnet. Should you mount a strong magnet to a weak sheet, the field will penetrate right through and the pull force will drop sharply. To achieve 100% of this magnet's power, you require a sufficiently solid element of metal. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the product holds weaker. We advise picking the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - resistance threshold
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
Standard neodymium magnets lose parameters past the thermal threshold. Watch out for overheating – excessive heat can permanently damage this product. With increasing heat, the magnet's force momentarily lowers. Refrain from using this magnet in hot environments higher than its operating temperature limit. Exceeding the critical threshold will result in destruction of magnetism.
*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. Warning indicator in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field collision
MW 14.9x10 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding 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 magnets interact from a wider radius than a magnet and sheet combination. The setup of two magnets produces a massive flux and a larger range of action. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Field value for N-N configuration is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Attention: Results demonstrate shear force of two matching neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - 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
Timepiece 20 Gs (2.0 mT) 5.5 cm
Mobile device 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
Powerful magnet radiation is a real danger to electronics as well as medical implants. These magnets generate a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Special caution must be taken by people with hearing aids and insulin pumps. Influence will be felt by: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (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
Neodymium magnets are prone to chipping – a strong collision with metal causes immediate chipping. Watch the impact speed – a magnet released freely turns into a projectile. Kinetic force can destroy the magnet or injury to fingers. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Anti-corrosion coating 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)
Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction 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)
Total magnetic flux emitted by the pole surface. Key data when building generators and motors. Pc value defines the working geometry.

Table 11: Hydrostatics and buoyancy
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.
1. Shear force

*Caution: On a vertical wall, the magnet holds just a fraction of its max power.

2. Efficiency vs thickness

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

3. Power loss vs temp

*For standard magnets, the max working temp is 80°C.

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

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

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.

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%
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
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The presented product is a very strong cylindrical magnet, produced from durable NdFeB material, which, with dimensions of Ø14.9x10 mm, guarantees the highest energy density. The MW 14.9x10 / N38 model is characterized by an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 7.60 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building electric motors, 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 rod is indispensable in miniature devices and wherever low weight is crucial.
Since our magnets have a very precise dimensions, 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 stability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. 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 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 14.9 mm. 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.

Strengths as well as weaknesses of neodymium magnets.

Strengths

Apart from their notable power, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
  • Neodymium magnets are characterized by remarkably resistant to magnetic field loss caused by external magnetic fields,
  • By using a shiny layer of gold, the element has an elegant look,
  • Magnets exhibit very high magnetic induction on the outer side,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of custom shaping and adjusting to individual needs,
  • Fundamental importance in future technologies – they serve a role in mass storage devices, electric drive systems, medical equipment, as well as industrial machines.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:
  • At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
  • Due to limitations in realizing nuts and complex shapes in magnets, we recommend using casing - magnetic mount.
  • Possible danger related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
  • Due to expensive raw materials, their price is higher than average,

Holding force characteristics

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

The lifting capacity listed is a theoretical maximum value performed under standard conditions:
  • using a base made of high-permeability steel, serving as a ideal flux conductor
  • whose thickness reaches at least 10 mm
  • with an polished contact surface
  • under conditions of no distance (metal-to-metal)
  • during detachment in a direction perpendicular to the mounting surface
  • at room temperature

Determinants of practical lifting force of a magnet

In real-world applications, the actual lifting capacity depends on several key aspects, listed from the most important:
  • Distance – the presence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
  • Plate thickness – insufficiently thick sheet causes magnetic saturation, causing part of the power to be escaped to the other side.
  • Material type – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
  • Smoothness – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet’s surface and the plate reduces the holding force.

Safe handling of neodymium magnets
Metal Allergy

Studies show that the nickel plating (standard magnet coating) is a potent allergen. If you have an allergy, prevent touching magnets with bare hands and opt for versions in plastic housing.

Maximum temperature

Keep cool. NdFeB magnets are susceptible to heat. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).

Bodily injuries

Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Caution required

Be careful. Neodymium magnets act from a long distance and connect with huge force, often faster than you can move away.

Risk of cracking

Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. We recommend safety glasses.

Dust is flammable

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.

Compass and GPS

Note: neodymium magnets generate a field that confuses precision electronics. Maintain a separation from your phone, device, and GPS.

Keep away from computers

Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).

Implant safety

For implant holders: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Swallowing risk

Absolutely keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are tragic.

Security! Want to know more? Read our article: Why are neodymium magnets dangerous?