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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 details - 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 simulation of the product - data

The following data represent the direct effect of a engineering calculation. Values were calculated on models for the class Nd2Fe14B. Real-world performance might slightly differ. Treat these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull 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: Vertical hold (vertical surface)
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) - behavior on slippery surfaces
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: Thermal stability (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: Two magnets (attraction) - field collision
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 (implants) - 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
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: Anti-corrosion coating durability
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: Hydrostatics and buoyancy
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%
Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Sliding resistance

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

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) severely reduces the holding force.

3. Heat tolerance

*For standard magnets, 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 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%
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: 010094-2025
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Force (pull)

Field Strength

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The offered product is an incredibly powerful cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø6x6 mm, guarantees optimal power. This specific item is characterized by high dimensional repeatability and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 1.14 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 11.18 N with a weight of only 1.27 g, this rod is indispensable in miniature devices and wherever every gram matters.
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 precision component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.
Magnets NdFeB grade N38 are suitable for 90% of applications in automation and machine building, where excessive 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 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 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.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • Their magnetic field is maintained, and after approximately ten years it drops only by ~1% (according to research),
  • Neodymium magnets are exceptionally resistant to magnetic field loss caused by external magnetic fields,
  • A magnet with a smooth nickel surface looks better,
  • Magnetic induction on the working layer of the magnet turns out to be strong,
  • 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 detailed modeling as well as adapting to precise requirements,
  • Versatile presence in advanced technology sectors – they are commonly used in HDD drives, brushless drives, diagnostic systems, and modern systems.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Disadvantages

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Due to limitations in producing threads and complex shapes in magnets, we recommend using a housing - magnetic mount.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these products can be problematic in diagnostics medical when they are in the body.
  • With budget limitations the cost of neodymium magnets is a challenge,

Pull force analysis

Magnetic strength at its maximum – what contributes to it?

Breakaway force was defined for ideal contact conditions, assuming:
  • with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • with a cross-section minimum 10 mm
  • characterized by lack of roughness
  • under conditions of no distance (metal-to-metal)
  • during detachment in a direction vertical to the mounting surface
  • at room temperature

Lifting capacity in real conditions – factors

Please note that the magnet holding may be lower depending on the following factors, in order of importance:
  • Gap (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or debris).
  • Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
  • Plate thickness – too thin steel does not accept the full field, causing part of the flux to be lost to the other side.
  • Plate material – mild steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
  • Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Temperature influence – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate reduces the holding force.

Safe handling of neodymium magnets
Cards and drives

Device Safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Precision electronics

Navigation devices and mobile phones are extremely sensitive to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.

Warning for allergy sufferers

Nickel alert: The Ni-Cu-Ni coating contains nickel. If redness occurs, cease handling magnets and use protective gear.

Risk of cracking

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Medical interference

For implant holders: Powerful magnets affect medical devices. Maintain at least 30 cm distance or request help to work with the magnets.

Caution required

Exercise caution. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can move away.

Combustion hazard

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Finger safety

Watch your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

Danger to the youngest

These products are not suitable for play. Swallowing several magnets can lead to them attracting across intestines, which poses a critical condition and necessitates urgent medical intervention.

Operating temperature

Keep cool. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, look for HT versions (H, SH, UH).

Important! More info about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98