MW 10x2 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010006
GTIN/EAN: 5906301810056
Diameter Ø
10 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
1.18 g
Magnetization Direction
↑ axial
Load capacity
1.27 kg / 12.50 N
Magnetic Induction
230.11 mT / 2301 Gs
Coating
[NiCuNi] Nickel
0.467 ZŁ with VAT / pcs + price for transport
0.380 ZŁ net + 23% VAT / pcs
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Technical details - MW 10x2 / N38 - cylindrical magnet
Specification / characteristics - MW 10x2 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010006 |
| GTIN/EAN | 5906301810056 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 10 mm [±0,1 mm] |
| Height | 2 mm [±0,1 mm] |
| Weight | 1.18 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 1.27 kg / 12.50 N |
| Magnetic Induction ~ ? | 230.11 mT / 2301 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
These information are the direct effect of a physical analysis. Results rely on algorithms for the class Nd2Fe14B. Operational parameters might slightly differ from theoretical values. Please consider these data as a reference point during assembly planning.
Table 1: Static force (force vs distance) - power drop
MW 10x2 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
2300 Gs
230.0 mT
|
1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
|
safe |
| 1 mm |
1974 Gs
197.4 mT
|
0.94 kg / 2.06 pounds
935.3 g / 9.2 N
|
safe |
| 2 mm |
1570 Gs
157.0 mT
|
0.59 kg / 1.31 pounds
592.1 g / 5.8 N
|
safe |
| 3 mm |
1194 Gs
119.4 mT
|
0.34 kg / 0.75 pounds
342.3 g / 3.4 N
|
safe |
| 5 mm |
661 Gs
66.1 mT
|
0.10 kg / 0.23 pounds
104.9 g / 1.0 N
|
safe |
| 10 mm |
178 Gs
17.8 mT
|
0.01 kg / 0.02 pounds
7.6 g / 0.1 N
|
safe |
| 15 mm |
66 Gs
6.6 mT
|
0.00 kg / 0.00 pounds
1.1 g / 0.0 N
|
safe |
| 20 mm |
31 Gs
3.1 mT
|
0.00 kg / 0.00 pounds
0.2 g / 0.0 N
|
safe |
| 30 mm |
10 Gs
1.0 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
Table 2: Sliding load (wall)
MW 10x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.25 kg / 0.56 pounds
254.0 g / 2.5 N
|
| 1 mm | Stal (~0.2) |
0.19 kg / 0.41 pounds
188.0 g / 1.8 N
|
| 2 mm | Stal (~0.2) |
0.12 kg / 0.26 pounds
118.0 g / 1.2 N
|
| 3 mm | Stal (~0.2) |
0.07 kg / 0.15 pounds
68.0 g / 0.7 N
|
| 5 mm | Stal (~0.2) |
0.02 kg / 0.04 pounds
20.0 g / 0.2 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 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: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x2 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.38 kg / 0.84 pounds
381.0 g / 3.7 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.25 kg / 0.56 pounds
254.0 g / 2.5 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.13 kg / 0.28 pounds
127.0 g / 1.2 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.64 kg / 1.40 pounds
635.0 g / 6.2 N
|
Table 4: Steel thickness (saturation) - power losses
MW 10x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.13 kg / 0.28 pounds
127.0 g / 1.2 N
|
| 1 mm |
|
0.32 kg / 0.70 pounds
317.5 g / 3.1 N
|
| 2 mm |
|
0.64 kg / 1.40 pounds
635.0 g / 6.2 N
|
| 3 mm |
|
0.95 kg / 2.10 pounds
952.5 g / 9.3 N
|
| 5 mm |
|
1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
|
| 10 mm |
|
1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
|
| 11 mm |
|
1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
|
| 12 mm |
|
1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
|
Table 5: Thermal resistance (material behavior) - power drop
MW 10x2 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
1.27 kg / 2.80 pounds
1270.0 g / 12.5 N
|
OK |
| 40 °C | -2.2% |
1.24 kg / 2.74 pounds
1242.1 g / 12.2 N
|
OK |
| 60 °C | -4.4% |
1.21 kg / 2.68 pounds
1214.1 g / 11.9 N
|
|
| 80 °C | -6.6% |
1.19 kg / 2.62 pounds
1186.2 g / 11.6 N
|
|
| 100 °C | -28.8% |
0.90 kg / 1.99 pounds
904.2 g / 8.9 N
|
Table 6: Two magnets (attraction) - forces in the system
MW 10x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
2.56 kg / 5.65 pounds
3 867 Gs
|
0.38 kg / 0.85 pounds
384 g / 3.8 N
|
N/A |
| 1 mm |
2.25 kg / 4.96 pounds
4 312 Gs
|
0.34 kg / 0.74 pounds
338 g / 3.3 N
|
2.03 kg / 4.46 pounds
~0 Gs
|
| 2 mm |
1.89 kg / 4.16 pounds
3 948 Gs
|
0.28 kg / 0.62 pounds
283 g / 2.8 N
|
1.70 kg / 3.74 pounds
~0 Gs
|
| 3 mm |
1.52 kg / 3.36 pounds
3 548 Gs
|
0.23 kg / 0.50 pounds
229 g / 2.2 N
|
1.37 kg / 3.02 pounds
~0 Gs
|
| 5 mm |
0.92 kg / 2.02 pounds
2 750 Gs
|
0.14 kg / 0.30 pounds
137 g / 1.3 N
|
0.82 kg / 1.82 pounds
~0 Gs
|
| 10 mm |
0.21 kg / 0.47 pounds
1 322 Gs
|
0.03 kg / 0.07 pounds
32 g / 0.3 N
|
0.19 kg / 0.42 pounds
~0 Gs
|
| 20 mm |
0.02 kg / 0.03 pounds
355 Gs
|
0.00 kg / 0.01 pounds
2 g / 0.0 N
|
0.01 kg / 0.03 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
33 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
20 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
13 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
9 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: Hazards (implants) - precautionary measures
MW 10x2 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 4.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.5 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 2.5 cm |
| Mobile device | 40 Gs (4.0 mT) | 2.0 cm |
| Remote | 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 (cracking risk) - collision effects
MW 10x2 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
33.21 km/h
(9.22 m/s)
|
0.05 J | |
| 30 mm |
57.31 km/h
(15.92 m/s)
|
0.15 J | |
| 50 mm |
73.98 km/h
(20.55 m/s)
|
0.25 J | |
| 100 mm |
104.63 km/h
(29.06 m/s)
|
0.50 J |
Table 9: Surface protection spec
MW 10x2 / 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 10x2 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 2 097 Mx | 21.0 µWb |
| Pc Coefficient | 0.29 | Low (Flat) |
Table 11: Submerged application
MW 10x2 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 1.27 kg | Standard |
| Water (riverbed) |
1.45 kg
(+0.18 kg buoyancy gain)
|
+14.5% |
1. Shear force
*Note: On a vertical surface, the magnet holds just ~20% of its max power.
2. Steel saturation
*Thin metal sheet (e.g. 0.5mm PC case) significantly limits the holding force.
3. Heat tolerance
*For N38 grade, the safety limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.29
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 |
Other products
Pros as well as cons of rare earth magnets.
Strengths
- They retain attractive force for almost 10 years – the drop is just ~1% (according to analyses),
- They are resistant to demagnetization induced by presence of other magnetic fields,
- Thanks to the glossy finish, the surface of nickel, gold, or silver gives an clean appearance,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures reaching 230°C and above...
- Thanks to modularity in designing and the capacity to adapt to individual projects,
- Key role in future technologies – they find application in hard drives, electric drive systems, advanced medical instruments, also technologically advanced constructions.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Disadvantages
- To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 extremely resistant to heat
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic holder, due to difficulties in producing nuts inside the magnet and complex forms.
- Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
- Due to neodymium price, their price is higher than average,
Holding force characteristics
Highest magnetic holding force – what contributes to it?
- on a plate made of mild steel, perfectly concentrating the magnetic field
- with a cross-section of at least 10 mm
- with a surface cleaned and smooth
- with total lack of distance (no paint)
- under perpendicular force vector (90-degree angle)
- at standard ambient temperature
Magnet lifting force in use – key factors
- Distance (between the magnet and the metal), because even a microscopic clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to paint, rust or debris).
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel gives the best results. Alloy steels lower magnetic properties and holding force.
- Surface structure – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.
Precautions when working with neodymium magnets
Beware of splinters
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.
Electronic devices
Do not bring magnets near a purse, computer, or screen. The magnetic field can destroy these devices and erase data from cards.
Powerful field
Use magnets with awareness. Their huge power can surprise even professionals. Stay alert and do not underestimate their power.
Do not drill into magnets
Powder generated during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
Warning for allergy sufferers
Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from direct skin contact and opt for versions in plastic housing.
Operating temperature
Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Keep away from children
Strictly keep magnets out of reach of children. Risk of swallowing is high, and the effects of magnets clamping inside the body are fatal.
Phone sensors
Remember: rare earth magnets produce a field that confuses sensitive sensors. Keep a separation from your mobile, tablet, and navigation systems.
Medical implants
Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Bone fractures
Danger of trauma: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Use thick gloves.
