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
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
0.1500 zł net / pcs
0.1845 zł with VAT (23% VAT) / pcs
bulk discounts:
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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Product card - 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 |
|---|---|---|
| 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 |
Technical modeling of the assembly - data
The following data constitute the outcome of a physical analysis. Results are based on models for the material Nd2Fe14B. Operational parameters may differ. Treat these data as a preliminary roadmap during assembly planning.
Table 1: Static pull force (pull vs gap) - characteristics
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
|
low risk |
| 1 mm |
1790 Gs
179.0 mT
|
0.01 kg / 0.01 pounds
6.0 g / 0.1 N
|
low risk |
| 2 mm |
633 Gs
63.3 mT
|
0.00 kg / 0.00 pounds
0.8 g / 0.0 N
|
low risk |
| 3 mm |
300 Gs
30.0 mT
|
0.00 kg / 0.00 pounds
0.2 g / 0.0 N
|
low risk |
| 5 mm |
107 Gs
10.7 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 10 mm |
23 Gs
2.3 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 15 mm |
9 Gs
0.9 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 20 mm |
4 Gs
0.4 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 30 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 50 mm |
0 Gs
0.0 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
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 (shearing) - vertical pull
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) - sheet metal selection
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: Working in heat (material behavior) - thermal limit
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) - forces in the system
MW 2x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (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) - warnings
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 |
| Phone / Smartphone | 40 Gs (4.0 mT) | 1.0 cm |
| Car key | 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: Impact energy (kinetic energy) - collision effects
MW 2x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
5.68 km/h
(1.58 m/s)
|
0.00 J | |
| 30 mm |
5.68 km/h
(1.58 m/s)
|
0.00 J | |
| 50 mm |
5.68 km/h
(1.58 m/s)
|
0.00 J | |
| 100 mm |
5.68 km/h
(1.58 m/s)
|
0.00 J |
Table 9: Surface protection spec
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: Submerged application
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
*Note: On a vertical surface, the magnet retains only a fraction of its nominal pull.
2. Steel thickness impact
*Thin metal sheet (e.g. computer case) significantly limits the holding force.
3. Heat tolerance
*For standard magnets, the safety limit 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Advantages as well as disadvantages of rare earth magnets.
Strengths
- They have constant strength, and over more than 10 years their attraction force decreases symbolically – ~1% (in testing),
- They have excellent resistance to weakening of magnetic properties as a result of external fields,
- Thanks to the shiny finish, the surface of nickel, gold, or silver gives an modern appearance,
- Magnetic induction on the working part of the magnet remains maximum,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to versatility in shaping and the capacity to adapt to individual projects,
- Wide application in innovative solutions – they are used in HDD drives, drive modules, advanced medical instruments, and multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in compact constructions
Weaknesses
- To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in force. 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
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited possibility of making threads in the magnet and complex shapes - recommended is casing - magnet mounting.
- Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical after entering the body.
- Due to expensive raw materials, their price is higher than average,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what affects it?
- on a plate made of mild steel, perfectly concentrating the magnetic flux
- with a cross-section minimum 10 mm
- with an ground contact surface
- under conditions of no distance (surface-to-surface)
- for force acting at a right angle (pull-off, not shear)
- in temp. approx. 20°C
Lifting capacity in real conditions – factors
- Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of nominal force).
- Plate thickness – insufficiently thick plate causes magnetic saturation, causing part of the power to be wasted to the other side.
- Plate material – low-carbon steel gives the best results. Alloy steels lower magnetic properties and holding force.
- Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, however under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.
Warnings
Respect the power
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Magnetic interference
Remember: neodymium magnets generate a field that disrupts precision electronics. Keep a separation from your phone, device, and GPS.
Crushing force
Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Mechanical processing
Dust generated during machining of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
Heat sensitivity
Control the heat. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Protect data
Powerful magnetic fields can erase data on payment cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Skin irritation risks
It is widely known that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from direct skin contact and opt for coated magnets.
This is not a toy
Adult use only. Small elements pose a choking risk, leading to intestinal necrosis. Store out of reach of kids and pets.
Beware of splinters
Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Warning for heart patients
People with a heart stimulator must maintain an absolute distance from magnets. The magnetism can stop the functioning of the implant.
