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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

Engineering analysis of the product - data

Presented information represent the direct effect of a physical simulation. Results rely on models for the class Nd2Fe14B. Operational parameters might slightly differ from theoretical values. Please consider these calculations as a reference point for designers.

Table 1: Static pull 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: Slippage load (wall)
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: Vertical assembly (sliding) - vertical pull
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) - power losses
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 resistance (stability) - power drop
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 (attraction) - field range
MW 6x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral 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: Safety (HSE) (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
Mobile device 40 Gs (4.0 mT) 2.0 cm
Car key 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 (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: Coating parameters (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 (Flux)
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%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Shear force

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

2. Steel saturation

*Thin steel (e.g. computer case) severely limits the holding force.

3. Heat tolerance

*For N38 grade, 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 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: 010094-2026
Measurement Calculator
Pulling force

Magnetic Field

Other deals

This product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø6x6 mm, guarantees the highest energy density. The MW 6x6 / N38 model boasts a tolerance of ±0.1mm and industrial build quality, making it an excellent 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. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 11.18 N with a weight of only 1.27 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in automation, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.
Magnets N38 are suitable for the majority of applications in automation 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 store.
The presented product is a neodymium magnet with precisely defined parameters: diameter 6 mm and height 6 mm. The key parameter here is the lifting capacity amounting to approximately 1.14 kg (force ~11.18 N), which, with such compact dimensions, proves the high power of the NdFeB material. 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.

Strengths and weaknesses of rare earth magnets.

Benefits

Apart from their notable magnetism, neodymium magnets have these key benefits:
  • Their strength remains stable, and after around ten years it decreases only by ~1% (theoretically),
  • Neodymium magnets are characterized by extremely resistant to loss of magnetic properties caused by magnetic disturbances,
  • In other words, due to the reflective surface of gold, the element becomes visually attractive,
  • Magnetic induction on the working layer of the magnet is extremely intense,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Possibility of individual forming as well as adjusting to defined needs,
  • Huge importance in modern technologies – they are used in hard drives, electric drive systems, medical devices, also other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which enables their usage in compact constructions

Limitations

What to avoid - cons of neodymium magnets and proposals for their use:
  • To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • We suggest cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated shapes.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small elements of these devices are able to be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Best holding force of the magnet in ideal parameterswhat contributes to it?

Magnet power was determined for ideal contact conditions, taking into account:
  • on a base made of mild steel, perfectly concentrating the magnetic flux
  • possessing a thickness of min. 10 mm to ensure full flux closure
  • characterized by smoothness
  • with total lack of distance (no coatings)
  • during detachment in a direction perpendicular to the plane
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

In real-world applications, the real power results from many variables, listed from most significant:
  • Gap (betwixt the magnet and the metal), as 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 debris).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
  • Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Safe handling of neodymium magnets
Immense force

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

Operating temperature

Regular neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.

Warning for allergy sufferers

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness appears, immediately stop handling magnets and use protective gear.

Bodily injuries

Danger of trauma: The attraction force is so immense that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Electronic hazard

Device Safety: Strong magnets can ruin payment cards and delicate electronics (heart implants, medical aids, mechanical watches).

Phone sensors

Remember: rare earth magnets generate a field that disrupts sensitive sensors. Maintain a safe distance from your phone, device, and GPS.

No play value

Neodymium magnets are not toys. Swallowing a few magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and necessitates urgent medical intervention.

Machining danger

Dust generated during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Implant safety

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Risk of cracking

Despite metallic appearance, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

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

e-mail: bok@dhit.pl

tel: +48 888 99 98 98