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MW 6x6 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010094

GTIN/EAN: 5906301810933

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

1.27 g

Magnetization Direction

↑ axial

Load capacity

1.14 kg / 11.18 N

Magnetic Induction

553.38 mT / 5534 Gs

Coating

[NiCuNi] Nickel

0.677 with VAT / pcs + price for transport

0.550 ZŁ net + 23% VAT / pcs

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Technical - MW 6x6 / N38 - cylindrical magnet

Specification / characteristics - MW 6x6 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010094
GTIN/EAN 5906301810933
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 6 mm [±0,1 mm]
Height 6 mm [±0,1 mm]
Weight 1.27 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.14 kg / 11.18 N
Magnetic Induction ~ ? 553.38 mT / 5534 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x6 / 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 simulation of the assembly - report

The following values are the direct effect of a engineering simulation. Values are based on algorithms for the class Nd2Fe14B. Actual conditions may deviate from the simulation results. Treat these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - power drop
MW 6x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5527 Gs
552.7 mT
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
weak grip
1 mm 3738 Gs
373.8 mT
0.52 kg / 1.15 pounds
521.5 g / 5.1 N
weak grip
2 mm 2366 Gs
236.6 mT
0.21 kg / 0.46 pounds
209.0 g / 2.0 N
weak grip
3 mm 1498 Gs
149.8 mT
0.08 kg / 0.18 pounds
83.7 g / 0.8 N
weak grip
5 mm 665 Gs
66.5 mT
0.02 kg / 0.04 pounds
16.5 g / 0.2 N
weak grip
10 mm 155 Gs
15.5 mT
0.00 kg / 0.00 pounds
0.9 g / 0.0 N
weak grip
15 mm 58 Gs
5.8 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
weak grip
20 mm 28 Gs
2.8 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
30 mm 9 Gs
0.9 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip
50 mm 2 Gs
0.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
weak grip

Table 2: Sliding hold (vertical surface)
MW 6x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.23 kg / 0.50 pounds
228.0 g / 2.2 N
1 mm Stal (~0.2) 0.10 kg / 0.23 pounds
104.0 g / 1.0 N
2 mm Stal (~0.2) 0.04 kg / 0.09 pounds
42.0 g / 0.4 N
3 mm Stal (~0.2) 0.02 kg / 0.04 pounds
16.0 g / 0.2 N
5 mm Stal (~0.2) 0.00 kg / 0.01 pounds
4.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 6x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.34 kg / 0.75 pounds
342.0 g / 3.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.23 kg / 0.50 pounds
228.0 g / 2.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.11 kg / 0.25 pounds
114.0 g / 1.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.57 kg / 1.26 pounds
570.0 g / 5.6 N

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 6x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.11 kg / 0.25 pounds
114.0 g / 1.1 N
1 mm
25%
0.29 kg / 0.63 pounds
285.0 g / 2.8 N
2 mm
50%
0.57 kg / 1.26 pounds
570.0 g / 5.6 N
3 mm
75%
0.86 kg / 1.88 pounds
855.0 g / 8.4 N
5 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
10 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
11 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
12 mm
100%
1.14 kg / 2.51 pounds
1140.0 g / 11.2 N

Table 5: Thermal stability (stability) - resistance threshold
MW 6x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.14 kg / 2.51 pounds
1140.0 g / 11.2 N
OK
40 °C -2.2% 1.11 kg / 2.46 pounds
1114.9 g / 10.9 N
OK
60 °C -4.4% 1.09 kg / 2.40 pounds
1089.8 g / 10.7 N
OK
80 °C -6.6% 1.06 kg / 2.35 pounds
1064.8 g / 10.4 N
100 °C -28.8% 0.81 kg / 1.79 pounds
811.7 g / 8.0 N

Table 6: Two magnets (repulsion) - field range
MW 6x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 5.32 kg / 11.74 pounds
5 995 Gs
0.80 kg / 1.76 pounds
799 g / 7.8 N
N/A
1 mm 3.70 kg / 8.17 pounds
9 220 Gs
0.56 kg / 1.23 pounds
556 g / 5.5 N
3.33 kg / 7.35 pounds
~0 Gs
2 mm 2.44 kg / 5.37 pounds
7 476 Gs
0.37 kg / 0.81 pounds
365 g / 3.6 N
2.19 kg / 4.83 pounds
~0 Gs
3 mm 1.55 kg / 3.42 pounds
5 968 Gs
0.23 kg / 0.51 pounds
233 g / 2.3 N
1.40 kg / 3.08 pounds
~0 Gs
5 mm 0.61 kg / 1.35 pounds
3 755 Gs
0.09 kg / 0.20 pounds
92 g / 0.9 N
0.55 kg / 1.22 pounds
~0 Gs
10 mm 0.08 kg / 0.17 pounds
1 330 Gs
0.01 kg / 0.03 pounds
12 g / 0.1 N
0.07 kg / 0.15 pounds
~0 Gs
20 mm 0.00 kg / 0.01 pounds
311 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
31 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
19 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
12 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
8 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
6 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
5 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Protective zones (electronics) - precautionary measures
MW 6x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.0 cm
Hearing aid 10 Gs (1.0 mT) 3.0 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: Collisions (kinetic energy) - warning
MW 6x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 30.23 km/h
(8.40 m/s)
0.04 J
30 mm 52.34 km/h
(14.54 m/s)
0.13 J
50 mm 67.56 km/h
(18.77 m/s)
0.22 J
100 mm 95.55 km/h
(26.54 m/s)
0.45 J

Table 9: Corrosion resistance
MW 6x6 / 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: Construction data (Pc)
MW 6x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 613 Mx 16.1 µWb
Pc Coefficient 0.89 High (Stable)

Table 11: Physics of underwater searching
MW 6x6 / N38

Environment Effective steel pull Effect
Air (land) 1.14 kg Standard
Water (riverbed) 1.31 kg
(+0.17 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. Shear force

*Warning: On a vertical wall, the magnet holds only approx. 20-30% of its perpendicular strength.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) significantly 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) = 0.89

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%
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: 010094-2026
Measurement Calculator
Pulling force

Field Strength

Other proposals

The offered product is an extremely powerful cylindrical magnet, composed of advanced NdFeB material, which, at dimensions of Ø6x6 mm, guarantees optimal power. The MW 6x6 / N38 model features high dimensional repeatability and industrial build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 1.14 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 11.18 N with a weight of only 1.27 g, this rod is indispensable in electronics and wherever low weight is crucial.
Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision 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.
Magnets 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 (Ø6x6), 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 6 mm and height 6 mm. The value of 11.18 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1.27 g. 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 6 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 through the diameter if your project requires it.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Besides their exceptional pulling force, neodymium magnets offer the following advantages:
  • Their strength is durable, and after approximately ten years it decreases only by ~1% (theoretically),
  • They feature excellent resistance to magnetic field loss as a result of external magnetic sources,
  • A magnet with a shiny gold surface is more attractive,
  • Magnets exhibit excellent magnetic induction on the outer layer,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • Possibility of individual shaping and modifying to specific needs,
  • Universal use in modern industrial fields – they are used in magnetic memories, brushless drives, medical equipment, also technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in compact constructions

Limitations

Disadvantages of neodymium magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
  • Limited ability of producing nuts in the magnet and complex shapes - recommended is casing - mounting mechanism.
  • Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Additionally, tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

Magnet power is the result of a measurement for optimal configuration, including:
  • on a base made of structural steel, perfectly concentrating the magnetic flux
  • with a cross-section minimum 10 mm
  • characterized by even structure
  • without any insulating layer between the magnet and steel
  • during pulling in a direction perpendicular to the plane
  • at room temperature

Practical lifting capacity: influencing factors

Real force impacted by specific conditions, such as (from priority):
  • Gap between magnet and steel – every millimeter of separation (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
  • Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
  • Base massiveness – insufficiently thick sheet does not accept the full field, causing part of the power to be lost into the air.
  • Steel grade – ideal substrate is high-permeability steel. Stainless steels may have worse magnetic properties.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
  • Thermal factor – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity was determined by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Safe handling of neodymium magnets
Impact on smartphones

Note: neodymium magnets produce a field that interferes with precision electronics. Keep a safe distance from your mobile, device, and navigation systems.

Pacemakers

Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Risk of cracking

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

Serious injuries

Pinching hazard: The attraction force is so immense that it can cause hematomas, pinching, and even bone fractures. Use thick gloves.

Threat to electronics

Device Safety: Strong magnets can ruin payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Do not underestimate power

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

Allergic reactions

Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands and opt for encased magnets.

Operating temperature

Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.

Combustion hazard

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Danger to the youngest

These products are not suitable for play. Swallowing a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and necessitates immediate surgery.

Attention! Need more info? Check our post: Are neodymium magnets dangerous?