MW 6x2 zestaw 100 szt. / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010537
GTIN/EAN: 5906301815280
- Diameter Ø
- 6 mm [±0,1 mm]
- Height
- 2 mm [±0,1 mm]
- Weight
- 42 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
24.38 zł net / pcs
29.99 zł with VAT (23% VAT) / pcs
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Need more?Frequently asked questions
Where can I buy strong cylindrical neodymium magnets?
Can a small cylindrical magnet provide a strong grip for precise workshop work?
Which cylindrical magnet can work at a higher temperature?
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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Product card - MW 6x2 zestaw 100 szt. / N38 - cylindrical magnet
Specification / characteristics - MW 6x2 zestaw 100 szt. / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010537 |
| GTIN/EAN | 5906301815280 |
| Distributor | 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 | 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 |
|---|---|---|
| Remanence Br ? | 12.2-12.6 | kGs |
| Remanence Br ? | 1220-1260 | mT |
| Coercivity bHc ? | 10.8-11.5 | kOe |
| Coercivity bHc ? | 860-915 | kA/m |
| Intrinsic coercivity iHc | ≥ 12 | kOe |
| Intrinsic coercivity iHc | ≥ 955 | kA/m |
| Energy product BHmax ? | 36-38 | BH max MGOe |
| Energy product BHmax ? | 287-303 | BH max KJ/m |
| Maximum working 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 |
Physical analysis of the magnet - report
Presented information are the direct effect of a mathematical analysis. Values are based on algorithms for the class Nd2Fe14B. Actual parameters might slightly differ from theoretical values. Use these calculations as a reference point for designers.
Table 1: Static pull force (pull vs gap) - characteristics
MW 6x2 zestaw 100 szt. / 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
|
safe |
| 1 mm |
2423 Gs
242.3 mT
|
0.43 kg / 0.95 lbs
429.2 g / 4.2 N
|
safe |
| 2 mm |
1521 Gs
152.1 mT
|
0.17 kg / 0.37 lbs
169.0 g / 1.7 N
|
safe |
| 3 mm |
932 Gs
93.2 mT
|
0.06 kg / 0.14 lbs
63.5 g / 0.6 N
|
safe |
| 5 mm |
382 Gs
38.2 mT
|
0.01 kg / 0.02 lbs
10.7 g / 0.1 N
|
safe |
| 10 mm |
76 Gs
7.6 mT
|
0.00 kg / 0.00 lbs
0.4 g / 0.0 N
|
safe |
| 15 mm |
26 Gs
2.6 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
| 20 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
| 30 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
| 50 mm |
1 Gs
0.1 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
Table 2: Shear hold (wall)
MW 6x2 zestaw 100 szt. / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Raw steel (µ ≈ 0.2) |
0.17 kg / 0.38 lbs
172.0 g / 1.7 N
|
| 1 mm | Raw steel (µ ≈ 0.2) |
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| 2 mm | Raw steel (µ ≈ 0.2) |
0.03 kg / 0.07 lbs
34.0 g / 0.3 N
|
| 3 mm | Raw steel (µ ≈ 0.2) |
0.01 kg / 0.03 lbs
12.0 g / 0.1 N
|
| 5 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 lbs
2.0 g / 0.0 N
|
| 10 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 15 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 20 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 30 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
| 50 mm | Raw steel (µ ≈ 0.2) |
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
Table 3: Wall mounting (sliding) - vertical pull
MW 6x2 zestaw 100 szt. / N38
| Surface type | Friction coefficient / % | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% of nominal force
|
0.26 kg / 0.57 lbs
258.0 g / 2.5 N
|
| Painted steel (standard) |
µ = 0.2
20% of nominal force
|
0.17 kg / 0.38 lbs
172.0 g / 1.7 N
|
| Oily/slippery steel |
µ = 0.1
10% of nominal force
|
0.09 kg / 0.19 lbs
86.0 g / 0.8 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% of nominal force
|
0.43 kg / 0.95 lbs
430.0 g / 4.2 N
|
Table 4: Material efficiency (saturation) - power losses
MW 6x2 zestaw 100 szt. / 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 (material behavior) - resistance threshold
MW 6x2 zestaw 100 szt. / N38
| Magnet temperature (°C) | Force change relative to 20°C | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.86 kg / 1.90 lbs
860.0 g / 8.4 N
|
Estimate |
| 40 °C | -4.4% |
0.82 kg / 1.81 lbs
822.6 g / 8.1 N
|
Estimate |
| 60 °C | -8.6% |
0.79 kg / 1.73 lbs
786.0 g / 7.7 N
|
Estimate |
| 80 °C | -12.8% |
0.75 kg / 1.65 lbs
750.2 g / 7.4 N
|
Material limit |
| 100 °C | — | — | Out of range — no model |
Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 6x2 zestaw 100 szt. / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (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: Axial field levels — not safety zones
MW 6x2 zestaw 100 szt. / N38
| Field level (Gs) | mT | Model distance (cm) |
|---|---|---|
| < 5 Gs | < 0.5 mT | 3.0 cm |
| < 10 Gs | < 1.0 mT | 2.5 cm |
| < 20 Gs | < 2.0 mT | 2.0 cm |
| < 40 Gs | < 4.0 mT | 1.5 cm |
| < 50 Gs | < 5.0 mT | 1.5 cm |
| < 400 Gs | < 40.0 mT | 0.5 cm |
| < 600 Gs | < 60.0 mT | 0.5 cm |
Table 8: Collisions (cracking risk) - warning
MW 6x2 zestaw 100 szt. / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
2.58 km/h
(0.72 m/s)
|
0.01 J | |
| 30 mm |
2.58 km/h
(0.72 m/s)
|
0.01 J | |
| 50 mm |
2.58 km/h
(0.72 m/s)
|
0.01 J | |
| 100 mm |
2.58 km/h
(0.72 m/s)
|
0.01 J |
Table 9: Surface protection spec
MW 6x2 zestaw 100 szt. / 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 (Pc)
MW 6x2 zestaw 100 szt. / 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 zestaw 100 szt. / 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. Vertical hold
*Caution: On a vertical wall, the magnet retains merely a fraction of its perpendicular strength.
2. Plate thickness effect
*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.
3. Heat tolerance
N38: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.44
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.
Elemental analysis
| 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of rare earth magnets.
Pros
- They retain full power for nearly 10 years – the loss is just ~1% (based on simulations),
- Magnets effectively protect themselves against loss of magnetization caused by ambient magnetic noise,
- In other words, due to the smooth layer of gold, the element is aesthetically pleasing,
- Magnets are distinguished by very high magnetic induction on the surface,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Possibility of individual machining and adjusting to individual requirements,
- Versatile presence in modern technologies – they serve a role in mass storage devices, brushless drives, medical devices, and industrial machines.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- We suggest cover - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets are risky, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small components of these magnets can disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Highest magnetic holding force – what affects it?
- on a plate made of structural steel, effectively closing the magnetic field
- whose thickness reaches at least 10 mm
- with a plane cleaned and smooth
- with total lack of distance (without paint)
- for force applied at a right angle (in the magnet axis)
- at standard ambient temperature
Key elements affecting lifting force
- Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of maximum force).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Material type – the best choice is pure iron steel. Cast iron may attract less.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet results in weakening of induction. Check the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate decreases the lifting capacity.
Safe handling of neodymium magnets
Electronic hazard
Device Safety: Strong magnets can damage data carriers and sensitive devices (heart implants, hearing aids, timepieces).
Do not give to children
Always keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are tragic.
Respect the power
Handle with care. Rare earth magnets attract from a distance and snap with massive power, often quicker than you can move away.
Combustion hazard
Powder produced during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Shattering risk
NdFeB magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets leads to them cracking into small pieces.
GPS and phone interference
A strong magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.
Warning for allergy sufferers
Medical facts indicate that nickel (the usual finish) is a strong allergen. If you have an allergy, refrain from touching magnets with bare hands or choose versions in plastic housing.
ICD Warning
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Thermal limits
Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.
Bone fractures
Danger of trauma: The attraction force is so immense that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.
