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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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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

Technical modeling of the assembly - report

The following information constitute the result of a mathematical simulation. Values are based on algorithms for the material Nd2Fe14B. Operational performance may differ. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs distance) - interaction chart
MW 6x6 / N38
Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 5527 Gs
552.7 mT
1.14 kg / 1140.0 g
11.2 N
weak grip
1 mm 3738 Gs
373.8 mT
0.52 kg / 521.5 g
5.1 N
weak grip
2 mm 2366 Gs
236.6 mT
0.21 kg / 209.0 g
2.0 N
weak grip
3 mm 1498 Gs
149.8 mT
0.08 kg / 83.7 g
0.8 N
weak grip
5 mm 665 Gs
66.5 mT
0.02 kg / 16.5 g
0.2 N
weak grip
10 mm 155 Gs
15.5 mT
0.00 kg / 0.9 g
0.0 N
weak grip
15 mm 58 Gs
5.8 mT
0.00 kg / 0.1 g
0.0 N
weak grip
20 mm 28 Gs
2.8 mT
0.00 kg / 0.0 g
0.0 N
weak grip
30 mm 9 Gs
0.9 mT
0.00 kg / 0.0 g
0.0 N
weak grip
50 mm 2 Gs
0.2 mT
0.00 kg / 0.0 g
0.0 N
weak grip
Table 2: Slippage Load (Wall)
MW 6x6 / N38
Distance (mm) Friction coefficient Pull Force (kg)
0 mm Stal (~0.2) 0.23 kg / 228.0 g
2.2 N
1 mm Stal (~0.2) 0.10 kg / 104.0 g
1.0 N
2 mm Stal (~0.2) 0.04 kg / 42.0 g
0.4 N
3 mm Stal (~0.2) 0.02 kg / 16.0 g
0.2 N
5 mm Stal (~0.2) 0.00 kg / 4.0 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 (sliding) - vertical pull
MW 6x6 / N38
Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.34 kg / 342.0 g
3.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.23 kg / 228.0 g
2.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.11 kg / 114.0 g
1.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.57 kg / 570.0 g
5.6 N
Table 4: Steel thickness (substrate influence) - power losses
MW 6x6 / N38
Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.11 kg / 114.0 g
1.1 N
1 mm
25%
0.29 kg / 285.0 g
2.8 N
2 mm
50%
0.57 kg / 570.0 g
5.6 N
5 mm
100%
1.14 kg / 1140.0 g
11.2 N
10 mm
100%
1.14 kg / 1140.0 g
11.2 N
Table 5: Working in heat (material behavior) - thermal limit
MW 6x6 / N38
Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 1.14 kg / 1140.0 g
11.2 N
OK
40 °C -2.2% 1.11 kg / 1114.9 g
10.9 N
OK
60 °C -4.4% 1.09 kg / 1089.8 g
10.7 N
OK
80 °C -6.6% 1.06 kg / 1064.8 g
10.4 N
100 °C -28.8% 0.81 kg / 811.7 g
8.0 N
Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 6x6 / N38
Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 5.32 kg / 5324 g
52.2 N
5 995 Gs
N/A
1 mm 3.70 kg / 3705 g
36.3 N
9 220 Gs
3.33 kg / 3334 g
32.7 N
~0 Gs
2 mm 2.44 kg / 2436 g
23.9 N
7 476 Gs
2.19 kg / 2192 g
21.5 N
~0 Gs
3 mm 1.55 kg / 1552 g
15.2 N
5 968 Gs
1.40 kg / 1397 g
13.7 N
~0 Gs
5 mm 0.61 kg / 614 g
6.0 N
3 755 Gs
0.55 kg / 553 g
5.4 N
~0 Gs
10 mm 0.08 kg / 77 g
0.8 N
1 330 Gs
0.07 kg / 69 g
0.7 N
~0 Gs
20 mm 0.00 kg / 4 g
0.0 N
311 Gs
0.00 kg / 0 g
0.0 N
~0 Gs
50 mm 0.00 kg / 0 g
0.0 N
31 Gs
0.00 kg / 0 g
0.0 N
~0 Gs
Table 7: Hazards (electronics) - warnings
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
Mechanical watch 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 (cracking risk) - 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: Surface protection spec
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: Underwater work (magnet fishing)
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%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Steel saturation

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

3. Temperature resistance

*For standard magnets, the safety 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 and environmental data
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%
Ecology and recycling (GPSR)
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: 010094-2025
Measurement Calculator
Force (Pull)

Magnetic Induction

See also offers

The presented product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, with dimensions of Ø6x6 mm, guarantees the highest energy density. This specific item boasts high dimensional repeatability and industrial build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 1.14 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is created for building generators, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 11.18 N with a weight of only 1.27 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.
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 industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger magnets in the same volume (Ø6x6), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
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 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 6 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.

Advantages and disadvantages of rare earth magnets.

Benefits
Besides their immense magnetic power, neodymium magnets offer the following advantages:
  • Their strength is maintained, and after approximately ten years it drops only by ~1% (theoretically),
  • Magnets very well defend themselves against demagnetization caused by external fields,
  • A magnet with a metallic gold surface has better aesthetics,
  • Magnets exhibit maximum magnetic induction on the outer side,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures approaching 230°C and above...
  • Thanks to the potential of precise shaping and adaptation to custom needs, magnetic components can be manufactured in a broad palette of geometric configurations, which amplifies use scope,
  • Universal use in modern industrial fields – they are commonly used in magnetic memories, electric motors, medical equipment, also other advanced devices.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
Disadvantages of NdFeB magnets:
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and 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
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in creating nuts and complex forms in magnets, we recommend using a housing - magnetic mechanism.
  • Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these products can be problematic in diagnostics medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Detachment force of the magnet in optimal conditionswhat contributes to it?
The force parameter is a result of laboratory testing conducted under standard conditions:
  • using a base made of mild steel, acting as a circuit closing element
  • whose thickness reaches at least 10 mm
  • characterized by even structure
  • without the slightest insulating layer between the magnet and steel
  • during detachment in a direction perpendicular to the mounting surface
  • at temperature approx. 20 degrees Celsius
Determinants of practical lifting force of a magnet
In real-world applications, the actual holding force is determined by several key aspects, presented from the most important:
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Steel type – low-carbon steel gives the best results. Alloy steels reduce magnetic permeability and lifting capacity.
  • Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.

H&S for magnets
No play value

Only for adults. Tiny parts pose a choking risk, causing severe trauma. Keep out of reach of kids and pets.

Protect data

Powerful magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Serious injuries

Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Machining danger

Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Precision electronics

Navigation devices and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.

Medical interference

Warning for patients: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or request help to work with the magnets.

Power loss in heat

Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.

Do not underestimate power

Handle with care. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can move away.

Risk of cracking

Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

Allergic reactions

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If you have an allergy, refrain from direct skin contact or select coated magnets.

Attention! Learn more about hazards in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98