MW 6x2 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010092
GTIN/EAN: 5906301810919
- Diameter Ø
- 6 mm [±0,1 mm]
- Height
- 2 mm [±0,1 mm]
- Weight
- 0.42 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
0.200 zł net / pcs
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Need more?Frequently asked questions
What is the maximum working temperature of a disc magnet?
What is the difference between N38, N42 and N52?
What is the dimensional tolerance?
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 - MW 6x2 / N38 - cylindrical magnet
Specification / characteristics - MW 6x2 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010092 |
| GTIN/EAN | 5906301810919 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 6 mm [±0,1 mm] |
| Height | 2 mm [±0,1 mm] |
| Weight | 0.42 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.86 kg / 8.43 N |
| Magnetic Induction ~ ? | 343.37 mT / 3434 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 | 310 | °C |
| Curie Temperature TF | 590 | °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
These values are the direct effect of a physical simulation. Values rely on algorithms for the class Nd2Fe14B. Actual performance might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.
Table 1: Static force (pull vs gap) - interaction chart
MW 6x2 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
3430 Gs
343.0 mT
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
weak grip |
| 1 mm |
2423 Gs
242.3 mT
|
0.43 kg / 0.95 lbs
429.2 g / 4.2 N
|
weak grip |
| 2 mm |
1521 Gs
152.1 mT
|
0.17 kg / 0.37 lbs
169.0 g / 1.7 N
|
weak grip |
| 3 mm |
932 Gs
93.2 mT
|
0.06 kg / 0.14 lbs
63.5 g / 0.6 N
|
weak grip |
| 5 mm |
382 Gs
38.2 mT
|
0.01 kg / 0.02 lbs
10.7 g / 0.1 N
|
weak grip |
| 10 mm |
76 Gs
7.6 mT
|
0.00 kg / 0.00 lbs
0.4 g / 0.0 N
|
weak grip |
| 15 mm |
26 Gs
2.6 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 20 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
1 Gs
0.1 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
weak grip |
Table 2: Sliding hold (wall)
MW 6x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.17 kg / 0.38 lbs
172.0 g / 1.7 N
|
| 1 mm | Stal (~0.2) |
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| 2 mm | Stal (~0.2) |
0.03 kg / 0.07 lbs
34.0 g / 0.3 N
|
| 3 mm | Stal (~0.2) |
0.01 kg / 0.03 lbs
12.0 g / 0.1 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
2.0 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 6x2 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.26 kg / 0.57 lbs
258.0 g / 2.5 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.17 kg / 0.38 lbs
172.0 g / 1.7 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.43 kg / 0.95 lbs
430.0 g / 4.2 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 6x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| 1 mm |
|
0.22 kg / 0.47 lbs
215.0 g / 2.1 N
|
| 2 mm |
|
0.43 kg / 0.95 lbs
430.0 g / 4.2 N
|
| 3 mm |
|
0.65 kg / 1.42 lbs
645.0 g / 6.3 N
|
| 5 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
| 10 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
| 11 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
| 12 mm |
|
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
Table 5: Thermal resistance (stability) - resistance threshold
MW 6x2 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
OK |
| 40 °C | -2.2% |
0.84 kg / 1.85 lbs
841.1 g / 8.3 N
|
OK |
| 60 °C | -4.4% |
0.82 kg / 1.81 lbs
822.2 g / 8.1 N
|
|
| 80 °C | -6.6% |
0.80 kg / 1.77 lbs
803.2 g / 7.9 N
|
|
| 100 °C | -28.8% |
0.61 kg / 1.35 lbs
612.3 g / 6.0 N
|
Table 6: Two magnets (attraction) - field range
MW 6x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
2.05 kg / 4.52 lbs
4 944 Gs
|
0.31 kg / 0.68 lbs
308 g / 3.0 N
|
N/A |
| 1 mm |
1.52 kg / 3.34 lbs
5 900 Gs
|
0.23 kg / 0.50 lbs
228 g / 2.2 N
|
1.37 kg / 3.01 lbs
~0 Gs
|
| 2 mm |
1.02 kg / 2.26 lbs
4 847 Gs
|
0.15 kg / 0.34 lbs
154 g / 1.5 N
|
0.92 kg / 2.03 lbs
~0 Gs
|
| 3 mm |
0.65 kg / 1.44 lbs
3 869 Gs
|
0.10 kg / 0.22 lbs
98 g / 1.0 N
|
0.59 kg / 1.29 lbs
~0 Gs
|
| 5 mm |
0.25 kg / 0.54 lbs
2 379 Gs
|
0.04 kg / 0.08 lbs
37 g / 0.4 N
|
0.22 kg / 0.49 lbs
~0 Gs
|
| 10 mm |
0.03 kg / 0.06 lbs
764 Gs
|
0.00 kg / 0.01 lbs
4 g / 0.0 N
|
0.02 kg / 0.05 lbs
~0 Gs
|
| 20 mm |
0.00 kg / 0.00 lbs
153 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
12 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
7 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
5 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
3 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
2 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
2 Gs
|
0.00 kg / 0.00 lbs
0 g / 0.0 N
|
0.00 kg / 0.00 lbs
~0 Gs
|
Table 7: Safety (HSE) (implants) - warnings
MW 6x2 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 3.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 2.5 cm |
| Timepiece | 20 Gs (2.0 mT) | 2.0 cm |
| Mobile device | 40 Gs (4.0 mT) | 1.5 cm |
| Remote | 50 Gs (5.0 mT) | 1.5 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 (kinetic energy) - warning
MW 6x2 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
25.83 km/h
(7.17 m/s)
|
0.01 J | |
| 30 mm |
25.84 km/h
(7.18 m/s)
|
0.01 J | |
| 50 mm |
25.84 km/h
(7.18 m/s)
|
0.01 J | |
| 100 mm |
25.84 km/h
(7.18 m/s)
|
0.01 J |
Table 9: Surface protection spec
MW 6x2 / 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: Electrical data (Flux)
MW 6x2 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 029 Mx | 10.3 µWb |
| Pc Coefficient | 0.44 | Low (Flat) |
Table 11: Submerged application
MW 6x2 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.86 kg | Standard |
| Water (riverbed) |
0.98 kg
(+0.12 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Warning: On a vertical surface, the magnet holds merely approx. 20-30% of its nominal pull.
2. Efficiency vs thickness
*Thin metal sheet (e.g. computer case) significantly weakens the holding force.
3. Temperature resistance
*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) = 0.44
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.
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 |
Other deals
Strengths as well as weaknesses of Nd2Fe14B magnets.
Pros
- They do not lose strength, even during around 10 years – the drop in strength is only ~1% (based on measurements),
- They possess excellent resistance to magnetism drop when exposed to opposing magnetic fields,
- A magnet with a shiny silver surface has better aesthetics,
- Neodymium magnets generate maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to versatility in constructing and the ability to modify to specific needs,
- Huge importance in electronics industry – they are commonly used in computer drives, brushless drives, precision medical tools, as well as other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- 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
- They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating threads and complicated shapes in magnets, we propose using cover - magnetic mount.
- Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these devices can disrupt the diagnostic process medical after entering the body.
- Due to complex production process, their price is relatively high,
Lifting parameters
Maximum holding power of the magnet – what contributes to it?
- using a plate made of mild steel, serving as a circuit closing element
- possessing a thickness of minimum 10 mm to avoid saturation
- with an ground touching surface
- without any insulating layer between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at room temperature
Impact of factors on magnetic holding capacity in practice
- Gap (between the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
- Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
- Plate material – low-carbon steel attracts best. Alloy steels decrease magnetic permeability and lifting capacity.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was measured using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.
Warnings
Fire risk
Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Compass and GPS
GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can ruin the internal compass in your phone.
Electronic hazard
Do not bring magnets close to a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.
Avoid contact if allergic
A percentage of the population have a contact allergy to Ni, which is the common plating for neodymium magnets. Prolonged contact can result in a rash. We strongly advise use safety gloves.
ICD Warning
Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
Immense force
Handle with care. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.
Eye protection
Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.
Power loss in heat
Monitor thermal conditions. Exposing the magnet to high heat will ruin its properties and pulling force.
Crushing risk
Watch your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!
Swallowing risk
Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Store away from children and animals.
