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MW 6x1 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010091

GTIN/EAN: 5906301810902

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

0.21 g

Magnetization Direction

↑ axial

Load capacity

0.35 kg / 3.41 N

Magnetic Induction

195.87 mT / 1959 Gs

Coating

[NiCuNi] Nickel

0.221 with VAT / pcs + price for transport

0.1800 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 6x1 / N38 - cylindrical magnet

Specification / characteristics - MW 6x1 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010091
GTIN/EAN 5906301810902
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 1 mm [±0,1 mm]
Weight 0.21 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.35 kg / 3.41 N
Magnetic Induction ~ ? 195.87 mT / 1959 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x1 / 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

Physical analysis of the product - report

These values constitute the direct effect of a engineering calculation. Values rely on models for the material Nd2Fe14B. Actual parameters may differ from theoretical values. Use these calculations as a supplementary guide when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
MW 6x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1958 Gs
195.8 mT
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
low risk
1 mm 1479 Gs
147.9 mT
0.20 kg / 0.44 lbs
199.7 g / 2.0 N
low risk
2 mm 945 Gs
94.5 mT
0.08 kg / 0.18 lbs
81.6 g / 0.8 N
low risk
3 mm 576 Gs
57.6 mT
0.03 kg / 0.07 lbs
30.3 g / 0.3 N
low risk
5 mm 229 Gs
22.9 mT
0.00 kg / 0.01 lbs
4.8 g / 0.0 N
low risk
10 mm 43 Gs
4.3 mT
0.00 kg / 0.00 lbs
0.2 g / 0.0 N
low risk
15 mm 14 Gs
1.4 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk
20 mm 6 Gs
0.6 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk
30 mm 2 Gs
0.2 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk
50 mm 0 Gs
0.0 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk

Table 2: Slippage force (wall)
MW 6x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.07 kg / 0.15 lbs
70.0 g / 0.7 N
1 mm Stal (~0.2) 0.04 kg / 0.09 lbs
40.0 g / 0.4 N
2 mm Stal (~0.2) 0.02 kg / 0.04 lbs
16.0 g / 0.2 N
3 mm Stal (~0.2) 0.01 kg / 0.01 lbs
6.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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 (shearing) - vertical pull
MW 6x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.11 kg / 0.23 lbs
105.0 g / 1.0 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.07 kg / 0.15 lbs
70.0 g / 0.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.03 kg / 0.08 lbs
35.0 g / 0.3 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.18 kg / 0.39 lbs
175.0 g / 1.7 N

Table 4: Steel thickness (saturation) - sheet metal selection
MW 6x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.03 kg / 0.08 lbs
35.0 g / 0.3 N
1 mm
25%
0.09 kg / 0.19 lbs
87.5 g / 0.9 N
2 mm
50%
0.18 kg / 0.39 lbs
175.0 g / 1.7 N
3 mm
75%
0.26 kg / 0.58 lbs
262.5 g / 2.6 N
5 mm
100%
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
10 mm
100%
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
11 mm
100%
0.35 kg / 0.77 lbs
350.0 g / 3.4 N
12 mm
100%
0.35 kg / 0.77 lbs
350.0 g / 3.4 N

Table 5: Thermal resistance (material behavior) - thermal limit
MW 6x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.35 kg / 0.77 lbs
350.0 g / 3.4 N
OK
40 °C -2.2% 0.34 kg / 0.75 lbs
342.3 g / 3.4 N
OK
60 °C -4.4% 0.33 kg / 0.74 lbs
334.6 g / 3.3 N
80 °C -6.6% 0.33 kg / 0.72 lbs
326.9 g / 3.2 N
100 °C -28.8% 0.25 kg / 0.55 lbs
249.2 g / 2.4 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 6x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.67 kg / 1.47 lbs
3 430 Gs
0.10 kg / 0.22 lbs
100 g / 1.0 N
N/A
1 mm 0.54 kg / 1.18 lbs
3 507 Gs
0.08 kg / 0.18 lbs
80 g / 0.8 N
0.48 kg / 1.06 lbs
~0 Gs
2 mm 0.38 kg / 0.84 lbs
2 957 Gs
0.06 kg / 0.13 lbs
57 g / 0.6 N
0.34 kg / 0.76 lbs
~0 Gs
3 mm 0.25 kg / 0.55 lbs
2 393 Gs
0.04 kg / 0.08 lbs
37 g / 0.4 N
0.22 kg / 0.50 lbs
~0 Gs
5 mm 0.10 kg / 0.21 lbs
1 476 Gs
0.01 kg / 0.03 lbs
14 g / 0.1 N
0.09 kg / 0.19 lbs
~0 Gs
10 mm 0.01 kg / 0.02 lbs
458 Gs
0.00 kg / 0.00 lbs
1 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
20 mm 0.00 kg / 0.00 lbs
86 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
0.00 kg / 0.00 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
7 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
4 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
2 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
2 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
1 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
1 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 6x1 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.5 cm
Hearing aid 10 Gs (1.0 mT) 2.0 cm
Mechanical watch 20 Gs (2.0 mT) 1.5 cm
Mobile device 40 Gs (4.0 mT) 1.5 cm
Remote 50 Gs (5.0 mT) 1.0 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm

Table 8: Impact energy (cracking risk) - collision effects
MW 6x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 41.18 km/h
(11.44 m/s)
0.01 J
30 mm 71.31 km/h
(19.81 m/s)
0.04 J
50 mm 92.06 km/h
(25.57 m/s)
0.07 J
100 mm 130.20 km/h
(36.17 m/s)
0.14 J

Table 9: Anti-corrosion coating durability
MW 6x1 / 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 6x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 666 Mx 6.7 µWb
Pc Coefficient 0.25 Low (Flat)

Table 11: Hydrostatics and buoyancy
MW 6x1 / N38

Environment Effective steel pull Effect
Air (land) 0.35 kg Standard
Water (riverbed) 0.40 kg
(+0.05 kg buoyancy gain)
+14.5%
Corrosion 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)

*Note: On a vertical surface, the magnet holds merely a fraction of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly limits 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) = 0.25

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%
Environmental data
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: 010091-2026
Measurement Calculator
Pulling force

Magnetic Induction

Other proposals

The presented product is an incredibly powerful rod magnet, made from modern NdFeB material, which, at dimensions of Ø6x1 mm, guarantees maximum efficiency. The MW 6x1 / N38 model boasts a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.35 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced Hall effect sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 3.41 N with a weight of only 0.21 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.
Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel 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 (Ø6x1), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.
This model is characterized by dimensions Ø6x1 mm, which, at a weight of 0.21 g, makes it an element with impressive magnetic energy density. The value of 3.41 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.21 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
This rod magnet is magnetized axially (along the height of 1 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 diametrically if your project requires it.

Pros as well as cons of rare earth magnets.

Pros

Apart from their notable magnetism, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
  • They retain their magnetic properties even under external field action,
  • The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnetic induction on the top side of the magnet remains maximum,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to flexibility in designing and the capacity to modify to unusual requirements,
  • Significant place in electronics industry – they are commonly used in HDD drives, motor assemblies, medical devices, as well as other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Cons of neodymium magnets and ways of using them
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as 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 usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • Limited possibility of producing nuts in the magnet and complex shapes - recommended is cover - magnet mounting.
  • Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • With budget limitations the cost of neodymium magnets is a challenge,

Holding force characteristics

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

The force parameter is a measurement result conducted under standard conditions:
  • with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • with a thickness minimum 10 mm
  • with a plane cleaned and smooth
  • with zero gap (no impurities)
  • during pulling in a direction vertical to the mounting surface
  • at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity impacted by specific conditions, such as (from priority):
  • Distance – existence of foreign body (paint, tape, gap) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
  • Load vector – maximum parameter is available only during perpendicular pulling. The shear force of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
  • Steel thickness – insufficiently thick steel does not accept the full field, causing part of the flux to be wasted to the other side.
  • Steel type – low-carbon steel gives the best results. Alloy admixtures reduce magnetic properties and lifting capacity.
  • Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity was determined by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate lowers the holding force.

Safety rules for work with NdFeB magnets
Finger safety

Watch your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing everything in their path. Exercise extreme caution!

Operating temperature

Standard neodymium magnets (N-type) lose power when the temperature goes above 80°C. This process is irreversible.

Safe distance

Intense magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Shattering risk

Protect your eyes. Magnets can explode upon violent connection, ejecting shards into the air. We recommend safety glasses.

Handling guide

Handle magnets with awareness. Their immense force can shock even professionals. Be vigilant and respect their power.

GPS and phone interference

GPS units and mobile phones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the sensors in your phone.

Flammability

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Skin irritation risks

Some people experience a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Frequent touching may cause dermatitis. It is best to use safety gloves.

Do not give to children

Neodymium magnets are not intended for children. Swallowing a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and necessitates urgent medical intervention.

Medical interference

Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Danger! More info 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