MW 5x10 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010083
GTIN/EAN: 5906301810827
- Diameter Ø
- 5 mm [±0,1 mm]
- Height
- 10 mm [±0,1 mm]
- Weight
- 1.47 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
0.650 zł net / pcs
0.800 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 5x10 / N38 - cylindrical magnet
Specification / characteristics - MW 5x10 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010083 |
| GTIN/EAN | 5906301810827 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 5 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 1.47 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.56 kg / 5.45 N |
| Magnetic Induction ~ ? | 599.97 mT / 6000 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 |
Engineering analysis of the product - report
These values represent the result of a mathematical simulation. Results are based on models for the class Nd2Fe14B. Actual conditions may differ. Please consider these data as a reference point during assembly planning.
Table 1: Static pull force (pull vs distance) - interaction chart
MW 5x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
5990 Gs
599.0 mT
|
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
|
weak grip |
| 1 mm |
3743 Gs
374.3 mT
|
0.22 kg / 0.48 LBS
218.7 g / 2.1 N
|
weak grip |
| 2 mm |
2197 Gs
219.7 mT
|
0.08 kg / 0.17 LBS
75.3 g / 0.7 N
|
weak grip |
| 3 mm |
1325 Gs
132.5 mT
|
0.03 kg / 0.06 LBS
27.4 g / 0.3 N
|
weak grip |
| 5 mm |
570 Gs
57.0 mT
|
0.01 kg / 0.01 LBS
5.1 g / 0.0 N
|
weak grip |
| 10 mm |
137 Gs
13.7 mT
|
0.00 kg / 0.00 LBS
0.3 g / 0.0 N
|
weak grip |
| 15 mm |
54 Gs
5.4 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
weak grip |
| 20 mm |
26 Gs
2.6 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
weak grip |
| 30 mm |
9 Gs
0.9 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
weak grip |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
weak grip |
Table 2: Shear force (vertical surface)
MW 5x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.11 kg / 0.25 LBS
112.0 g / 1.1 N
|
| 1 mm | Stal (~0.2) |
0.04 kg / 0.10 LBS
44.0 g / 0.4 N
|
| 2 mm | Stal (~0.2) |
0.02 kg / 0.04 LBS
16.0 g / 0.2 N
|
| 3 mm | Stal (~0.2) |
0.01 kg / 0.01 LBS
6.0 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: Wall mounting (shearing) - behavior on slippery surfaces
MW 5x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.17 kg / 0.37 LBS
168.0 g / 1.6 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.11 kg / 0.25 LBS
112.0 g / 1.1 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.06 kg / 0.12 LBS
56.0 g / 0.5 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.28 kg / 0.62 LBS
280.0 g / 2.7 N
|
Table 4: Steel thickness (saturation) - power losses
MW 5x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.06 kg / 0.12 LBS
56.0 g / 0.5 N
|
| 1 mm |
|
0.14 kg / 0.31 LBS
140.0 g / 1.4 N
|
| 2 mm |
|
0.28 kg / 0.62 LBS
280.0 g / 2.7 N
|
| 3 mm |
|
0.42 kg / 0.93 LBS
420.0 g / 4.1 N
|
| 5 mm |
|
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
|
| 10 mm |
|
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
|
| 11 mm |
|
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
|
| 12 mm |
|
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
|
Table 5: Thermal stability (material behavior) - thermal limit
MW 5x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
|
OK |
| 40 °C | -2.2% |
0.55 kg / 1.21 LBS
547.7 g / 5.4 N
|
OK |
| 60 °C | -4.4% |
0.54 kg / 1.18 LBS
535.4 g / 5.3 N
|
OK |
| 80 °C | -6.6% |
0.52 kg / 1.15 LBS
523.0 g / 5.1 N
|
|
| 100 °C | -28.8% |
0.40 kg / 0.88 LBS
398.7 g / 3.9 N
|
Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 5x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
4.34 kg / 9.58 LBS
6 127 Gs
|
0.65 kg / 1.44 LBS
652 g / 6.4 N
|
N/A |
| 1 mm |
2.81 kg / 6.19 LBS
9 631 Gs
|
0.42 kg / 0.93 LBS
421 g / 4.1 N
|
2.53 kg / 5.57 LBS
~0 Gs
|
| 2 mm |
1.70 kg / 3.74 LBS
7 486 Gs
|
0.25 kg / 0.56 LBS
254 g / 2.5 N
|
1.53 kg / 3.37 LBS
~0 Gs
|
| 3 mm |
1.00 kg / 2.20 LBS
5 737 Gs
|
0.15 kg / 0.33 LBS
149 g / 1.5 N
|
0.90 kg / 1.98 LBS
~0 Gs
|
| 5 mm |
0.35 kg / 0.77 LBS
3 391 Gs
|
0.05 kg / 0.12 LBS
52 g / 0.5 N
|
0.31 kg / 0.69 LBS
~0 Gs
|
| 10 mm |
0.04 kg / 0.09 LBS
1 140 Gs
|
0.01 kg / 0.01 LBS
6 g / 0.1 N
|
0.04 kg / 0.08 LBS
~0 Gs
|
| 20 mm |
0.00 kg / 0.01 LBS
274 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
30 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
19 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
12 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
9 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
6 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
5 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 5x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 4.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.0 cm |
| Timepiece | 20 Gs (2.0 mT) | 2.5 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 2.0 cm |
| Car key | 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) | 0.5 cm |
Table 8: Collisions (kinetic energy) - collision effects
MW 5x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
10.07 km/h
(2.80 m/s)
|
0.01 J | |
| 30 mm |
10.08 km/h
(2.80 m/s)
|
0.01 J | |
| 50 mm |
10.08 km/h
(2.80 m/s)
|
0.01 J | |
| 100 mm |
10.08 km/h
(2.80 m/s)
|
0.01 J |
Table 9: Anti-corrosion coating durability
MW 5x10 / 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: Construction data (Flux)
MW 5x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 306 Mx | 13.1 µWb |
| Pc Coefficient | 1.21 | High (Stable) |
Table 11: Physics of underwater searching
MW 5x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.56 kg | Standard |
| Water (riverbed) |
0.64 kg
(+0.08 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Caution: On a vertical surface, the magnet retains merely ~20% of its max power.
2. Steel saturation
*Thin metal sheet (e.g. computer case) significantly limits the holding force.
3. Heat tolerance
*For N38 material, the max working temp is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 1.21
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Advantages as well as disadvantages of Nd2Fe14B magnets.
Pros
- Their power is durable, and after around ten years it decreases only by ~1% (theoretically),
- Neodymium magnets prove to be extremely resistant to loss of magnetic properties caused by external interference,
- In other words, due to the metallic finish of gold, the element becomes visually attractive,
- Magnetic induction on the working part of the magnet turns out to be extremely intense,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures approaching 230°C and above...
- Thanks to versatility in constructing and the capacity to adapt to client solutions,
- Universal use in future technologies – they serve a role in magnetic memories, brushless drives, medical equipment, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices
Cons
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- Limited ability of producing threads in the magnet and complicated shapes - recommended is a housing - mounting mechanism.
- Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can be problematic in diagnostics medical when they are in the body.
- Due to neodymium price, their price is higher than average,
Lifting parameters
Best holding force of the magnet in ideal parameters – what contributes to it?
- on a base made of structural steel, perfectly concentrating the magnetic flux
- with a cross-section minimum 10 mm
- with an ground contact surface
- with total lack of distance (without coatings)
- for force acting at a right angle (in the magnet axis)
- at ambient temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
- Clearance – existence of any layer (paint, dirt, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Steel type – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
- Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a small distance between the magnet’s surface and the plate decreases the load capacity.
Precautions when working with NdFeB magnets
Dust is flammable
Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.
Heat warning
Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Electronic hazard
Do not bring magnets close to a purse, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.
Medical implants
Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
Magnet fragility
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.
Allergy Warning
Nickel alert: The nickel-copper-nickel coating contains nickel. If redness occurs, immediately stop working with magnets and use protective gear.
Hand protection
Pinching hazard: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.
Magnetic interference
Note: neodymium magnets produce a field that interferes with sensitive sensors. Keep a separation from your mobile, device, and GPS.
Powerful field
Handle magnets consciously. Their immense force can shock even experienced users. Be vigilant and do not underestimate their power.
No play value
These products are not suitable for play. Swallowing multiple magnets can lead to them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.
