Neodymium magnets: power you're looking for

Looking for massive power in small size? Our range includes complete range of disc, cylindrical and ring magnets. They are ideal for domestic applications, garage and industrial tasks. See products with fast shipping.

discover magnet catalog

Equipment for treasure hunters

Discover your passion with treasure salvaging! Our specialized grips (F200, F400) provide safety guarantee and immense power. Solid, corrosion-resistant housing and strong lines will perform in any water.

find your set

Industrial magnetic grips mounting

Reliable solutions for mounting non-invasive. Threaded grips (M8, M10, M12) guarantee instant organization of work on production halls. They are indispensable mounting lamps, detectors and banners.

see available threads

📦 Fast shipping: buy by 14:00, we'll ship today!

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

MW 8x8 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010106

GTIN/EAN: 5906301811053

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

3.02 g

Magnetization Direction

↑ axial

Load capacity

2.03 kg / 19.92 N

Magnetic Induction

553.67 mT / 5537 Gs

Coating

[NiCuNi] Nickel

1.341 with VAT / pcs + price for transport

1.090 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
1.090 ZŁ
1.341 ZŁ
price from 600 pcs
1.025 ZŁ
1.260 ZŁ
price from 2300 pcs
0.959 ZŁ
1.180 ZŁ
Looking for a better price?

Call us now +48 22 499 98 98 alternatively drop us a message via inquiry form through our site.
Lifting power along with form of a magnet can be checked using our force calculator.

Same-day processing for orders placed before 14:00.

Technical - MW 8x8 / N38 - cylindrical magnet

Specification / characteristics - MW 8x8 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010106
GTIN/EAN 5906301811053
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 8 mm [±0,1 mm]
Height 8 mm [±0,1 mm]
Weight 3.02 g
Magnetization Direction ↑ axial
Load capacity ~ ? 2.03 kg / 19.92 N
Magnetic Induction ~ ? 553.67 mT / 5537 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x8 / 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 assembly - report

Presented information are the direct effect of a physical calculation. Results rely on algorithms for the class Nd2Fe14B. Real-world performance may differ from theoretical values. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs distance) - characteristics
MW 8x8 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5531 Gs
553.1 mT
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
medium risk
1 mm 4162 Gs
416.2 mT
1.15 kg / 2.53 LBS
1149.3 g / 11.3 N
low risk
2 mm 2984 Gs
298.4 mT
0.59 kg / 1.30 LBS
590.7 g / 5.8 N
low risk
3 mm 2107 Gs
210.7 mT
0.29 kg / 0.65 LBS
294.5 g / 2.9 N
low risk
5 mm 1084 Gs
108.4 mT
0.08 kg / 0.17 LBS
78.0 g / 0.8 N
low risk
10 mm 296 Gs
29.6 mT
0.01 kg / 0.01 LBS
5.8 g / 0.1 N
low risk
15 mm 118 Gs
11.8 mT
0.00 kg / 0.00 LBS
0.9 g / 0.0 N
low risk
20 mm 58 Gs
5.8 mT
0.00 kg / 0.00 LBS
0.2 g / 0.0 N
low risk
30 mm 20 Gs
2.0 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk
50 mm 5 Gs
0.5 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
low risk

Table 2: Slippage hold (vertical surface)
MW 8x8 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.41 kg / 0.90 LBS
406.0 g / 4.0 N
1 mm Stal (~0.2) 0.23 kg / 0.51 LBS
230.0 g / 2.3 N
2 mm Stal (~0.2) 0.12 kg / 0.26 LBS
118.0 g / 1.2 N
3 mm Stal (~0.2) 0.06 kg / 0.13 LBS
58.0 g / 0.6 N
5 mm Stal (~0.2) 0.02 kg / 0.04 LBS
16.0 g / 0.2 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 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: Vertical assembly (sliding) - behavior on slippery surfaces
MW 8x8 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.61 kg / 1.34 LBS
609.0 g / 6.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.41 kg / 0.90 LBS
406.0 g / 4.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.20 kg / 0.45 LBS
203.0 g / 2.0 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
1.02 kg / 2.24 LBS
1015.0 g / 10.0 N

Table 4: Material efficiency (saturation) - power losses
MW 8x8 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.20 kg / 0.45 LBS
203.0 g / 2.0 N
1 mm
25%
0.51 kg / 1.12 LBS
507.5 g / 5.0 N
2 mm
50%
1.02 kg / 2.24 LBS
1015.0 g / 10.0 N
3 mm
75%
1.52 kg / 3.36 LBS
1522.5 g / 14.9 N
5 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
10 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
11 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
12 mm
100%
2.03 kg / 4.48 LBS
2030.0 g / 19.9 N

Table 5: Thermal stability (material behavior) - resistance threshold
MW 8x8 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 2.03 kg / 4.48 LBS
2030.0 g / 19.9 N
OK
40 °C -2.2% 1.99 kg / 4.38 LBS
1985.3 g / 19.5 N
OK
60 °C -4.4% 1.94 kg / 4.28 LBS
1940.7 g / 19.0 N
OK
80 °C -6.6% 1.90 kg / 4.18 LBS
1896.0 g / 18.6 N
100 °C -28.8% 1.45 kg / 3.19 LBS
1445.4 g / 14.2 N

Table 6: Two magnets (repulsion) - forces in the system
MW 8x8 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 9.48 kg / 20.90 LBS
6 000 Gs
1.42 kg / 3.14 LBS
1422 g / 14.0 N
N/A
1 mm 7.26 kg / 16.01 LBS
9 682 Gs
1.09 kg / 2.40 LBS
1089 g / 10.7 N
6.54 kg / 14.41 LBS
~0 Gs
2 mm 5.37 kg / 11.83 LBS
8 324 Gs
0.81 kg / 1.78 LBS
805 g / 7.9 N
4.83 kg / 10.65 LBS
~0 Gs
3 mm 3.88 kg / 8.55 LBS
7 074 Gs
0.58 kg / 1.28 LBS
582 g / 5.7 N
3.49 kg / 7.69 LBS
~0 Gs
5 mm 1.95 kg / 4.30 LBS
5 016 Gs
0.29 kg / 0.64 LBS
292 g / 2.9 N
1.75 kg / 3.87 LBS
~0 Gs
10 mm 0.36 kg / 0.80 LBS
2 169 Gs
0.05 kg / 0.12 LBS
55 g / 0.5 N
0.33 kg / 0.72 LBS
~0 Gs
20 mm 0.03 kg / 0.06 LBS
592 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
0.02 kg / 0.05 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
66 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
41 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
27 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
19 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
14 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
10 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Hazards (implants) - warnings
MW 8x8 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Mechanical watch 20 Gs (2.0 mT) 3.5 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

Table 8: Impact energy (cracking risk) - warning
MW 8x8 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 26.19 km/h
(7.28 m/s)
0.08 J
30 mm 45.29 km/h
(12.58 m/s)
0.24 J
50 mm 58.47 km/h
(16.24 m/s)
0.40 J
100 mm 82.68 km/h
(22.97 m/s)
0.80 J

Table 9: Surface protection spec
MW 8x8 / 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 (Pc)
MW 8x8 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 868 Mx 28.7 µWb
Pc Coefficient 0.89 High (Stable)

Table 11: Underwater work (magnet fishing)
MW 8x8 / N38

Environment Effective steel pull Effect
Air (land) 2.03 kg Standard
Water (riverbed) 2.32 kg
(+0.29 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. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds merely a fraction of its perpendicular strength.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly reduces 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) = 0.89

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
Material specification
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: 010106-2025
Quick Unit Converter
Pulling force

Magnetic Field

Other deals

The offered product is an extremely powerful cylinder magnet, composed of advanced NdFeB material, which, with dimensions of Ø8x8 mm, guarantees maximum efficiency. This specific item boasts high dimensional repeatability and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 2.03 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Moreover, its 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 DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 19.92 N with a weight of only 3.02 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
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., 8.1 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.
Magnets NdFeB grade N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø8x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 8 mm. The value of 19.92 N means that the magnet is capable of holding a weight many times exceeding its own mass of 3.02 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
This cylinder is magnetized axially (along the height of 8 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 diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Pros

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
  • Magnets very well resist against loss of magnetization caused by ambient magnetic noise,
  • By using a decorative coating of gold, the element gains an professional look,
  • Magnets possess huge magnetic induction on the active area,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Thanks to versatility in designing and the ability to adapt to individual projects,
  • Universal use in innovative solutions – they are utilized in HDD drives, brushless drives, advanced medical instruments, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in small systems

Limitations

Drawbacks and weaknesses of neodymium magnets: application proposals
  • At strong impacts they can crack, 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 force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Limited possibility of making nuts in the magnet and complex forms - preferred is cover - magnet mounting.
  • Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small elements of these magnets can be problematic in diagnostics medical after entering the body.
  • Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Optimal lifting capacity of a neodymium magnetwhat contributes to it?

Holding force of 2.03 kg is a result of laboratory testing conducted under specific, ideal conditions:
  • on a block made of structural steel, effectively closing the magnetic flux
  • whose transverse dimension is min. 10 mm
  • characterized by lack of roughness
  • with zero gap (without paint)
  • under vertical force vector (90-degree angle)
  • at temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

Bear in mind that the working load may be lower influenced by the following factors, starting with the most relevant:
  • Gap (between the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Base massiveness – too thin steel causes magnetic saturation, causing part of the flux to be wasted to the other side.
  • Material composition – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
  • Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate reduces the holding force.

Safe handling of neodymium magnets
Implant safety

For implant holders: Powerful magnets disrupt electronics. Maintain minimum 30 cm distance or request help to work with the magnets.

Crushing force

Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, destroying anything in their path. Exercise extreme caution!

Mechanical processing

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.

Do not give to children

Always store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are life-threatening.

Power loss in heat

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

Keep away from electronics

Note: rare earth magnets generate a field that interferes with precision electronics. Maintain a safe distance from your phone, device, and GPS.

Eye protection

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Powerful field

Exercise caution. Neodymium magnets act from a distance and connect with huge force, often quicker than you can move away.

Warning for allergy sufferers

Certain individuals suffer from a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Extended handling may cause a rash. We suggest wear safety gloves.

Electronic hazard

Data protection: Neodymium magnets can ruin payment cards and sensitive devices (heart implants, medical aids, mechanical watches).

Danger! Learn more about risks in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98