MW 6x1 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010091
GTIN/EAN: 5906301810902
- Diameter Ø
- 6 mm [±0,1 mm]
- Height
- 1 mm [±0,1 mm]
- Weight
- 0.21 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
0.221 zł with VAT / pcs + price for transport
0.1800 zł net + 23% VAT / pcs
bulk discounts:
Need more?Engineering report for this magnet
Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.
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Technical details - MW 6x1 / N38 - cylindrical magnet
Specification / characteristics - MW 6x1 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010091 |
| GTIN/EAN | 5906301810902 |
| Production/Distribution | Dhit sp. z o.o. |
| 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
| 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
| 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
Presented data represent the result of a mathematical calculation. Values are based on algorithms for the material Nd2Fe14B. Actual parameters might slightly differ from theoretical values. Please consider these calculations as a supplementary guide during assembly planning.
Table 1: Static force (pull vs gap) - characteristics
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
|
safe |
| 1 mm |
1479 Gs
147.9 mT
|
0.20 kg / 0.44 LBS
199.7 g / 2.0 N
|
safe |
| 2 mm |
945 Gs
94.5 mT
|
0.08 kg / 0.18 LBS
81.6 g / 0.8 N
|
safe |
| 3 mm |
576 Gs
57.6 mT
|
0.03 kg / 0.07 LBS
30.3 g / 0.3 N
|
safe |
| 5 mm |
229 Gs
22.9 mT
|
0.00 kg / 0.01 LBS
4.8 g / 0.0 N
|
safe |
| 10 mm |
43 Gs
4.3 mT
|
0.00 kg / 0.00 LBS
0.2 g / 0.0 N
|
safe |
| 15 mm |
14 Gs
1.4 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
| 20 mm |
6 Gs
0.6 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
| 30 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
| 50 mm |
0 Gs
0.0 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
safe |
Table 2: Slippage load (vertical surface)
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: Wall mounting (shearing) - behavior on slippery surfaces
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: Material efficiency (substrate influence) - power losses
MW 6x1 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.03 kg / 0.08 LBS
35.0 g / 0.3 N
|
| 1 mm |
|
0.09 kg / 0.19 LBS
87.5 g / 0.9 N
|
| 2 mm |
|
0.18 kg / 0.39 LBS
175.0 g / 1.7 N
|
| 3 mm |
|
0.26 kg / 0.58 LBS
262.5 g / 2.6 N
|
| 5 mm |
|
0.35 kg / 0.77 LBS
350.0 g / 3.4 N
|
| 10 mm |
|
0.35 kg / 0.77 LBS
350.0 g / 3.4 N
|
| 11 mm |
|
0.35 kg / 0.77 LBS
350.0 g / 3.4 N
|
| 12 mm |
|
0.35 kg / 0.77 LBS
350.0 g / 3.4 N
|
Table 5: Working in heat (stability) - resistance threshold
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: Two magnets (attraction) - field range
MW 6x1 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding 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: Protective zones (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: Dynamics (cracking risk) - warning
MW 6x1 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
24.56 km/h
(6.82 m/s)
|
0.00 J | |
| 30 mm |
24.57 km/h
(6.82 m/s)
|
0.00 J | |
| 50 mm |
24.57 km/h
(6.83 m/s)
|
0.00 J | |
| 100 mm |
24.57 km/h
(6.83 m/s)
|
0.00 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 (Pc)
MW 6x1 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 666 Mx | 6.7 µWb |
| Pc Coefficient | 0.25 | Low (Flat) |
Table 11: Submerged application
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% |
1. Wall mount (shear)
*Note: On a vertical surface, the magnet retains merely ~20% of its nominal pull.
2. Steel saturation
*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.
3. Power loss vs temp
*For N38 material, the safety limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.25
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.
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 |
See also deals
Strengths and weaknesses of neodymium magnets.
Pros
- Their power is maintained, and after around 10 years it decreases only by ~1% (according to research),
- Magnets perfectly resist against loss of magnetization caused by ambient magnetic noise,
- Thanks to the glossy finish, the coating of nickel, gold, or silver gives an elegant appearance,
- Neodymium magnets create maximum magnetic induction on a contact point, which ensures high operational effectiveness,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Thanks to the ability of accurate molding and customization to unique solutions, magnetic components can be created in a wide range of forms and dimensions, which expands the range of possible applications,
- Fundamental importance in modern technologies – they are used in hard drives, electromotive mechanisms, precision medical tools, also industrial machines.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Limitations
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Limited ability of creating nuts in the magnet and complex forms - recommended is casing - mounting mechanism.
- Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance 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 mass production the cost of neodymium magnets is a challenge,
Holding force characteristics
Maximum lifting capacity of the magnet – what contributes to it?
- on a block made of structural steel, optimally conducting the magnetic field
- with a cross-section of at least 10 mm
- with an ideally smooth touching surface
- without any insulating layer between the magnet and steel
- during detachment in a direction vertical to the plane
- at temperature approx. 20 degrees Celsius
Lifting capacity in practice – influencing factors
- Clearance – the presence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.
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 load capacity is reduced by as much as 5 times. Additionally, even a small distance between the magnet and the plate reduces the load capacity.
H&S for magnets
Precision electronics
An intense magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Maintain magnets near a device to avoid damaging the sensors.
Safe operation
Be careful. Rare earth magnets attract from a long distance and connect with massive power, often quicker than you can move away.
Flammability
Powder generated during grinding of magnets is self-igniting. Do not drill into magnets unless you are an expert.
Crushing force
Watch your fingers. Two large magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Operating temperature
Control the heat. Exposing the magnet above 80 degrees Celsius will ruin its properties and strength.
Metal Allergy
Certain individuals experience a hypersensitivity to nickel, which is the common plating for neodymium magnets. Frequent touching can result in skin redness. It is best to wear safety gloves.
Eye protection
Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.
Swallowing risk
Product intended for adults. Tiny parts pose a choking risk, causing severe trauma. Store away from kids and pets.
Safe distance
Powerful magnetic fields can destroy records on payment cards, HDDs, and storage devices. Stay away of at least 10 cm.
Medical interference
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
