MW 2x10 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010054
GTIN/EAN: 5906301810537
Diameter Ø
2 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
0.24 g
Magnetization Direction
↑ axial
Load capacity
0.07 kg / 0.70 N
Magnetic Induction
613.08 mT / 6131 Gs
Coating
[NiCuNi] Nickel
0.1845 ZŁ with VAT / pcs + price for transport
0.1500 ZŁ net + 23% VAT / pcs
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Technical details - MW 2x10 / N38 - cylindrical magnet
Specification / characteristics - MW 2x10 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010054 |
| GTIN/EAN | 5906301810537 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 2 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 0.24 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.07 kg / 0.70 N |
| Magnetic Induction ~ ? | 613.08 mT / 6131 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 |
Engineering simulation of the product - data
These values are the direct effect of a physical simulation. Results rely on models for the material Nd2Fe14B. Real-world conditions may differ from theoretical values. Use these calculations as a supplementary guide during assembly planning.
Table 1: Static pull force (pull vs distance) - power drop
MW 2x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
6107 Gs
610.7 mT
|
0.07 kg / 0.15 pounds
70.0 g / 0.7 N
|
weak grip |
| 1 mm |
1790 Gs
179.0 mT
|
0.01 kg / 0.01 pounds
6.0 g / 0.1 N
|
weak grip |
| 2 mm |
633 Gs
63.3 mT
|
0.00 kg / 0.00 pounds
0.8 g / 0.0 N
|
weak grip |
| 3 mm |
300 Gs
30.0 mT
|
0.00 kg / 0.00 pounds
0.2 g / 0.0 N
|
weak grip |
| 5 mm |
107 Gs
10.7 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 10 mm |
23 Gs
2.3 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 15 mm |
9 Gs
0.9 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 20 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
0 Gs
0.0 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
weak grip |
Table 2: Slippage hold (wall)
MW 2x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.01 kg / 0.03 pounds
14.0 g / 0.1 N
|
| 1 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 g / 0.0 N
|
| 2 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 3 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 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 (sliding) - behavior on slippery surfaces
MW 2x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.02 kg / 0.05 pounds
21.0 g / 0.2 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.01 kg / 0.03 pounds
14.0 g / 0.1 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.01 kg / 0.02 pounds
7.0 g / 0.1 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.04 kg / 0.08 pounds
35.0 g / 0.3 N
|
Table 4: Material efficiency (saturation) - power losses
MW 2x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.01 kg / 0.02 pounds
7.0 g / 0.1 N
|
| 1 mm |
|
0.02 kg / 0.04 pounds
17.5 g / 0.2 N
|
| 2 mm |
|
0.04 kg / 0.08 pounds
35.0 g / 0.3 N
|
| 3 mm |
|
0.05 kg / 0.12 pounds
52.5 g / 0.5 N
|
| 5 mm |
|
0.07 kg / 0.15 pounds
70.0 g / 0.7 N
|
| 10 mm |
|
0.07 kg / 0.15 pounds
70.0 g / 0.7 N
|
| 11 mm |
|
0.07 kg / 0.15 pounds
70.0 g / 0.7 N
|
| 12 mm |
|
0.07 kg / 0.15 pounds
70.0 g / 0.7 N
|
Table 5: Thermal stability (stability) - resistance threshold
MW 2x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.07 kg / 0.15 pounds
70.0 g / 0.7 N
|
OK |
| 40 °C | -2.2% |
0.07 kg / 0.15 pounds
68.5 g / 0.7 N
|
OK |
| 60 °C | -4.4% |
0.07 kg / 0.15 pounds
66.9 g / 0.7 N
|
OK |
| 80 °C | -6.6% |
0.07 kg / 0.14 pounds
65.4 g / 0.6 N
|
|
| 100 °C | -28.8% |
0.05 kg / 0.11 pounds
49.8 g / 0.5 N
|
Table 6: Two magnets (attraction) - field range
MW 2x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
0.72 kg / 1.59 pounds
6 130 Gs
|
0.11 kg / 0.24 pounds
108 g / 1.1 N
|
N/A |
| 1 mm |
0.22 kg / 0.49 pounds
6 799 Gs
|
0.03 kg / 0.07 pounds
34 g / 0.3 N
|
0.20 kg / 0.44 pounds
~0 Gs
|
| 2 mm |
0.06 kg / 0.14 pounds
3 581 Gs
|
0.01 kg / 0.02 pounds
9 g / 0.1 N
|
0.06 kg / 0.12 pounds
~0 Gs
|
| 3 mm |
0.02 kg / 0.04 pounds
2 036 Gs
|
0.00 kg / 0.01 pounds
3 g / 0.0 N
|
0.02 kg / 0.04 pounds
~0 Gs
|
| 5 mm |
0.00 kg / 0.01 pounds
847 Gs
|
0.00 kg / 0.00 pounds
1 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 10 mm |
0.00 kg / 0.00 pounds
213 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 20 mm |
0.00 kg / 0.00 pounds
46 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 50 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
|
| 60 mm |
0.00 kg / 0.00 pounds
3 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
2 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
1 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
1 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
1 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 2x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 2.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 1.5 cm |
| Timepiece | 20 Gs (2.0 mT) | 1.5 cm |
| Mobile device | 40 Gs (4.0 mT) | 1.0 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: Collisions (kinetic energy) - collision effects
MW 2x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
17.22 km/h
(4.78 m/s)
|
0.00 J | |
| 30 mm |
29.83 km/h
(8.29 m/s)
|
0.01 J | |
| 50 mm |
38.51 km/h
(10.70 m/s)
|
0.01 J | |
| 100 mm |
54.47 km/h
(15.13 m/s)
|
0.03 J |
Table 9: Anti-corrosion coating durability
MW 2x10 / 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 2x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 232 Mx | 2.3 µWb |
| Pc Coefficient | 1.55 | High (Stable) |
Table 11: Hydrostatics and buoyancy
MW 2x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.07 kg | Standard |
| Water (riverbed) |
0.08 kg
(+0.01 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Caution: On a vertical wall, the magnet holds only a fraction of its perpendicular strength.
2. Efficiency vs thickness
*Thin metal sheet (e.g. computer case) drastically limits the holding force.
3. Temperature resistance
*For N38 grade, the max working temp is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.55
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.
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other products
Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- They do not lose magnetism, even during nearly ten years – the drop in strength is only ~1% (theoretically),
- They are extremely resistant to demagnetization induced by external disturbances,
- In other words, due to the smooth layer of gold, the element is aesthetically pleasing,
- Magnetic induction on the working layer of the magnet is strong,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Possibility of individual machining and adapting to specific requirements,
- Universal use in high-tech industry – they are utilized in computer drives, brushless drives, diagnostic systems, also complex engineering applications.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 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
- Due to limitations in realizing nuts and complex shapes in magnets, we propose using casing - magnetic holder.
- Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that tiny parts of these devices can be problematic in diagnostics medical after entering the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities
Pull force analysis
Optimal lifting capacity of a neodymium magnet – what affects it?
- using a sheet made of mild steel, acting as a magnetic yoke
- with a cross-section of at least 10 mm
- with a plane perfectly flat
- under conditions of no distance (surface-to-surface)
- for force acting at a right angle (in the magnet axis)
- in neutral thermal conditions
Lifting capacity in real conditions – factors
- Clearance – the presence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
- Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate reduces the lifting capacity.
Safe handling of NdFeB magnets
Mechanical processing
Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.
Impact on smartphones
Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.
Caution required
Be careful. Rare earth magnets act from a long distance and snap with massive power, often quicker than you can move away.
ICD Warning
Individuals with a ICD have to keep an absolute distance from magnets. The magnetism can disrupt the operation of the life-saving device.
Maximum temperature
Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.
Bodily injuries
Large magnets can smash fingers in a fraction of a second. Do not put your hand between two strong magnets.
Swallowing risk
Strictly store magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are tragic.
Electronic devices
Equipment safety: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, medical aids, timepieces).
Allergy Warning
Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, prevent touching magnets with bare hands or choose coated magnets.
Beware of splinters
Neodymium magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets leads to them cracking into shards.
