tel: +48 888 99 98 98

neodymium magnets

We provide red color magnetic Nd2Fe14B - our store's offer. Practically all "neodymium magnets" on our website are available for immediate purchase (check the list). Check out the magnet pricing for more details check the magnet price list

Magnets for searching F400 GOLD

Where to purchase powerful neodymium magnet? Magnet holders in airtight, solid steel casing are ideally suited for use in difficult, demanding weather conditions, including in the rain and snow see more

magnets with holders

Magnetic holders can be used to facilitate production processes, underwater discoveries, or finding meteorites made of ore see more...

Enjoy shipping of your order on the same day by 2:00 PM on weekdays.

Dhit sp. z o.o.
Product available Ships tomorrow

MW 5x15 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010084

GTIN: 5906301810834

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

2.21 g

Magnetization Direction

↑ axial

Load capacity

0.48 kg / 4.68 N

Magnetic Induction

610.03 mT / 6100 Gs

Coating

[NiCuNi] Nickel

1.107 with VAT / pcs + price for transport

0.900 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.900 ZŁ
1.107 ZŁ
price from 700 pcs
0.846 ZŁ
1.041 ZŁ
price from 2800 pcs
0.792 ZŁ
0.974 ZŁ
Want to negotiate?

Contact us by phone +48 22 499 98 98 if you prefer let us know through form the contact page.
Lifting power and form of a neodymium magnet can be checked using our magnetic mass calculator.

Orders submitted before 14:00 will be dispatched today!

MW 5x15 / N38 - cylindrical magnet

Specification / characteristics MW 5x15 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010084
GTIN 5906301810834
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 5 mm [±0,1 mm]
Height 15 mm [±0,1 mm]
Weight 2.21 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.48 kg / 4.68 N
Magnetic Induction ~ ? 610.03 mT / 6100 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x15 / N38 - cylindrical magnet
properties values units
remenance Br [Min. - Max.] ? 12.2-12.6 kGs
remenance Br [Min. - Max.] ? 1220-1260 T
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 106 °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 assembly - report

These information constitute the outcome of a physical calculation. Results were calculated on models for the material NdFeB. Operational performance may deviate from the simulation results. Treat these calculations as a reference point when designing systems.

Table 1: Static force (force vs gap) - characteristics
MW 5x15 / N38
Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 6091 Gs
609.1 mT
0.48 kg / 480.0 g
4.7 N
safe
1 mm 3823 Gs
382.3 mT
0.19 kg / 189.1 g
1.9 N
safe
2 mm 2261 Gs
226.1 mT
0.07 kg / 66.1 g
0.6 N
safe
3 mm 1378 Gs
137.8 mT
0.02 kg / 24.6 g
0.2 N
safe
5 mm 607 Gs
60.7 mT
0.00 kg / 4.8 g
0.0 N
safe
10 mm 154 Gs
15.4 mT
0.00 kg / 0.3 g
0.0 N
safe
15 mm 63 Gs
6.3 mT
0.00 kg / 0.1 g
0.0 N
safe
20 mm 32 Gs
3.2 mT
0.00 kg / 0.0 g
0.0 N
safe
30 mm 12 Gs
1.2 mT
0.00 kg / 0.0 g
0.0 N
safe
50 mm 3 Gs
0.3 mT
0.00 kg / 0.0 g
0.0 N
safe
Table 2: Vertical Force (Vertical Surface)
MW 5x15 / N38
Distance (mm) Friction coefficient Pull Force (kg)
0 mm Stal (~0.2) 0.10 kg / 96.0 g
0.9 N
1 mm Stal (~0.2) 0.04 kg / 38.0 g
0.4 N
2 mm Stal (~0.2) 0.01 kg / 14.0 g
0.1 N
3 mm Stal (~0.2) 0.00 kg / 4.0 g
0.0 N
5 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.0 g
0.0 N
Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 5x15 / N38
Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.14 kg / 144.0 g
1.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.10 kg / 96.0 g
0.9 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.05 kg / 48.0 g
0.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.24 kg / 240.0 g
2.4 N
Table 4: Material efficiency (saturation) - power losses
MW 5x15 / N38
Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.05 kg / 48.0 g
0.5 N
1 mm
25%
0.12 kg / 120.0 g
1.2 N
2 mm
50%
0.24 kg / 240.0 g
2.4 N
5 mm
100%
0.48 kg / 480.0 g
4.7 N
10 mm
100%
0.48 kg / 480.0 g
4.7 N
Table 5: Thermal stability (stability) - power drop
MW 5x15 / N38
Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 0.48 kg / 480.0 g
4.7 N
OK
40 °C -2.2% 0.47 kg / 469.4 g
4.6 N
OK
60 °C -4.4% 0.46 kg / 458.9 g
4.5 N
OK
80 °C -6.6% 0.45 kg / 448.3 g
4.4 N
100 °C -28.8% 0.34 kg / 341.8 g
3.4 N
Table 6: Two magnets (repulsion) - forces in the system
MW 5x15 / N38
Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 4.49 kg / 4491 g
44.1 N
6 154 Gs
N/A
1 mm 2.91 kg / 2912 g
28.6 N
9 810 Gs
2.62 kg / 2621 g
25.7 N
~0 Gs
2 mm 1.77 kg / 1769 g
17.4 N
7 646 Gs
1.59 kg / 1592 g
15.6 N
~0 Gs
3 mm 1.05 kg / 1046 g
10.3 N
5 880 Gs
0.94 kg / 942 g
9.2 N
~0 Gs
5 mm 0.37 kg / 372 g
3.7 N
3 507 Gs
0.34 kg / 335 g
3.3 N
~0 Gs
10 mm 0.04 kg / 45 g
0.4 N
1 213 Gs
0.04 kg / 40 g
0.4 N
~0 Gs
20 mm 0.00 kg / 3 g
0.0 N
309 Gs
0.00 kg / 0 g
0.0 N
~0 Gs
50 mm 0.00 kg / 0 g
0.0 N
37 Gs
0.00 kg / 0 g
0.0 N
~0 Gs
Table 7: Hazards (electronics) - precautionary measures
MW 5x15 / N38
Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.5 cm
Hearing aid 10 Gs (1.0 mT) 3.5 cm
Timepiece 20 Gs (2.0 mT) 2.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.0 cm
Remote 50 Gs (5.0 mT) 2.0 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 5x15 / N38
Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 14.87 km/h
(4.13 m/s)
0.02 J
30 mm 25.74 km/h
(7.15 m/s)
0.06 J
50 mm 33.23 km/h
(9.23 m/s)
0.09 J
100 mm 47.00 km/h
(13.06 m/s)
0.19 J
Table 9: Coating parameters (durability)
MW 5x15 / 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: Generator data (Flux)
MW 5x15 / N38
Parameter Value Jedn. SI / Opis
Strumień (Flux) 1 382 Mx 13.8 µWb
Współczynnik Pc 1.38 Wysoki (Stabilny)
Table 11: Hydrostatics and buoyancy
MW 5x15 / N38
Environment Effective steel pull Effect
Air (land) 0.48 kg Standard
Water (riverbed) 0.55 kg
(+0.07 kg Buoyancy gain)
+14.5%
Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Vertical hold

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

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) severely reduces the holding force.

3. Power loss vs temp

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

Quick Unit Converter
Force (Pull)

Magnetic Induction

Other proposals

This product is a very strong cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø5x15 mm, guarantees maximum efficiency. This specific item is characterized by high dimensional repeatability and professional build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.48 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
It finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 4.68 N with a weight of only 2.21 g, this cylindrical magnet is indispensable in electronics 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 immediate cracking of this professional component. To ensure long-term durability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø5x15), 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 5 mm and height 15 mm. The value of 4.68 N means that the magnet is capable of holding a weight many times exceeding its own mass of 2.21 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 15 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 through the diameter if your project requires it.

Pros as well as cons of NdFeB magnets.

Strengths
Besides their stability, neodymium magnets are valued for these benefits:
  • They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (according to literature),
  • They possess excellent resistance to weakening of magnetic properties due to external fields,
  • Thanks to the smooth finish, the coating of Ni-Cu-Ni, gold, or silver gives an clean appearance,
  • Magnetic induction on the working part of the magnet remains extremely intense,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Considering the possibility of precise shaping and adaptation to custom needs, neodymium magnets can be modeled in a broad palette of geometric configurations, which increases their versatility,
  • Huge importance in modern industrial fields – they are commonly used in computer drives, motor assemblies, precision medical tools, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in compact constructions
Weaknesses
Disadvantages of NdFeB magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also increases their 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 stability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • We recommend casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
  • Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, small elements of these devices can disrupt the diagnostic process medical after entering the body.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Detachment force of the magnet in optimal conditionswhat it depends on?
Information about lifting capacity is the result of a measurement for the most favorable conditions, assuming:
  • using a plate made of high-permeability steel, serving as a magnetic yoke
  • whose thickness reaches at least 10 mm
  • with an ground touching surface
  • without any air gap between the magnet and steel
  • during detachment in a direction vertical to the plane
  • at ambient temperature room level
Impact of factors on magnetic holding capacity in practice
Please note that the working load will differ depending on elements below, starting with the most relevant:
  • Gap (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • 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 maximum value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Chemical composition of the base – mild steel gives the best results. Higher carbon content reduce magnetic properties and holding force.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Uneven metal weaken the grip.
  • Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate lowers the holding force.

H&S for magnets
Nickel coating and allergies

Medical facts indicate that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, prevent touching magnets with bare hands or opt for coated magnets.

Handling rules

Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Heat sensitivity

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.

Finger safety

Mind your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!

Cards and drives

Do not bring magnets near a wallet, computer, or TV. The magnetic field can destroy these devices and wipe information from cards.

Medical interference

For implant holders: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Risk of cracking

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Danger to the youngest

Adult use only. Tiny parts can be swallowed, causing severe trauma. Store out of reach of kids and pets.

Compass and GPS

Remember: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your mobile, tablet, and GPS.

Do not drill into magnets

Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Danger! Details about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98