MW 12x10 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010016
GTIN/EAN: 5906301810155
- Diameter Ø
- 12 mm [±0,1 mm]
- Height
- 10 mm [±0,1 mm]
- Weight
- 8.48 g
- Magnetization Direction
- ↑ axial
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
2.46 zł net / pcs
3.03 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.
Call us now
+48 888 99 98 98
alternatively let us know using
contact form
the contact section.
Specifications and structure of a neodymium magnet can be estimated using our
power calculator.
Order by 14:00 and we’ll ship today!
Technical of the product - MW 12x10 / N38 - cylindrical magnet
Specification / characteristics - MW 12x10 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010016 |
| GTIN/EAN | 5906301810155 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 12 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 8.48 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 4.83 kg / 47.41 N |
| Magnetic Induction ~ ? | 531.09 mT / 5311 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 modeling of the assembly - technical parameters
Presented values constitute the result of a mathematical analysis. Values rely on algorithms for the class Nd2Fe14B. Actual parameters might slightly differ. Treat these calculations as a preliminary roadmap during assembly planning.
Table 1: Static pull force (force vs gap) - characteristics
MW 12x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
5308 Gs
530.8 mT
|
4.83 kg / 10.65 LBS
4830.0 g / 47.4 N
|
warning |
| 1 mm |
4424 Gs
442.4 mT
|
3.36 kg / 7.40 LBS
3355.3 g / 32.9 N
|
warning |
| 2 mm |
3585 Gs
358.5 mT
|
2.20 kg / 4.86 LBS
2203.4 g / 21.6 N
|
warning |
| 3 mm |
2857 Gs
285.7 mT
|
1.40 kg / 3.08 LBS
1399.2 g / 13.7 N
|
weak grip |
| 5 mm |
1787 Gs
178.7 mT
|
0.55 kg / 1.21 LBS
547.8 g / 5.4 N
|
weak grip |
| 10 mm |
622 Gs
62.2 mT
|
0.07 kg / 0.15 LBS
66.3 g / 0.7 N
|
weak grip |
| 15 mm |
272 Gs
27.2 mT
|
0.01 kg / 0.03 LBS
12.7 g / 0.1 N
|
weak grip |
| 20 mm |
141 Gs
14.1 mT
|
0.00 kg / 0.01 LBS
3.4 g / 0.0 N
|
weak grip |
| 30 mm |
52 Gs
5.2 mT
|
0.00 kg / 0.00 LBS
0.5 g / 0.0 N
|
weak grip |
| 50 mm |
13 Gs
1.3 mT
|
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
weak grip |
Table 2: Slippage hold (wall)
MW 12x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.97 kg / 2.13 LBS
966.0 g / 9.5 N
|
| 1 mm | Stal (~0.2) |
0.67 kg / 1.48 LBS
672.0 g / 6.6 N
|
| 2 mm | Stal (~0.2) |
0.44 kg / 0.97 LBS
440.0 g / 4.3 N
|
| 3 mm | Stal (~0.2) |
0.28 kg / 0.62 LBS
280.0 g / 2.7 N
|
| 5 mm | Stal (~0.2) |
0.11 kg / 0.24 LBS
110.0 g / 1.1 N
|
| 10 mm | Stal (~0.2) |
0.01 kg / 0.03 LBS
14.0 g / 0.1 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.00 LBS
2.0 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 (sliding) - vertical pull
MW 12x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
1.45 kg / 3.19 LBS
1449.0 g / 14.2 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.97 kg / 2.13 LBS
966.0 g / 9.5 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.48 kg / 1.06 LBS
483.0 g / 4.7 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
2.42 kg / 5.32 LBS
2415.0 g / 23.7 N
|
Table 4: Material efficiency (saturation) - power losses
MW 12x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.48 kg / 1.06 LBS
483.0 g / 4.7 N
|
| 1 mm |
|
1.21 kg / 2.66 LBS
1207.5 g / 11.8 N
|
| 2 mm |
|
2.42 kg / 5.32 LBS
2415.0 g / 23.7 N
|
| 3 mm |
|
3.62 kg / 7.99 LBS
3622.5 g / 35.5 N
|
| 5 mm |
|
4.83 kg / 10.65 LBS
4830.0 g / 47.4 N
|
| 10 mm |
|
4.83 kg / 10.65 LBS
4830.0 g / 47.4 N
|
| 11 mm |
|
4.83 kg / 10.65 LBS
4830.0 g / 47.4 N
|
| 12 mm |
|
4.83 kg / 10.65 LBS
4830.0 g / 47.4 N
|
Table 5: Thermal stability (material behavior) - resistance threshold
MW 12x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
4.83 kg / 10.65 LBS
4830.0 g / 47.4 N
|
OK |
| 40 °C | -2.2% |
4.72 kg / 10.41 LBS
4723.7 g / 46.3 N
|
OK |
| 60 °C | -4.4% |
4.62 kg / 10.18 LBS
4617.5 g / 45.3 N
|
OK |
| 80 °C | -6.6% |
4.51 kg / 9.95 LBS
4511.2 g / 44.3 N
|
|
| 100 °C | -28.8% |
3.44 kg / 7.58 LBS
3439.0 g / 33.7 N
|
Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 12x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
19.64 kg / 43.30 LBS
5 928 Gs
|
2.95 kg / 6.50 LBS
2946 g / 28.9 N
|
N/A |
| 1 mm |
16.52 kg / 36.43 LBS
9 736 Gs
|
2.48 kg / 5.46 LBS
2479 g / 24.3 N
|
14.87 kg / 32.79 LBS
~0 Gs
|
| 2 mm |
13.64 kg / 30.08 LBS
8 847 Gs
|
2.05 kg / 4.51 LBS
2047 g / 20.1 N
|
12.28 kg / 27.07 LBS
~0 Gs
|
| 3 mm |
11.12 kg / 24.51 LBS
7 986 Gs
|
1.67 kg / 3.68 LBS
1668 g / 16.4 N
|
10.01 kg / 22.06 LBS
~0 Gs
|
| 5 mm |
7.16 kg / 15.79 LBS
6 410 Gs
|
1.07 kg / 2.37 LBS
1074 g / 10.5 N
|
6.45 kg / 14.21 LBS
~0 Gs
|
| 10 mm |
2.23 kg / 4.91 LBS
3 575 Gs
|
0.33 kg / 0.74 LBS
334 g / 3.3 N
|
2.00 kg / 4.42 LBS
~0 Gs
|
| 20 mm |
0.27 kg / 0.59 LBS
1 244 Gs
|
0.04 kg / 0.09 LBS
40 g / 0.4 N
|
0.24 kg / 0.54 LBS
~0 Gs
|
| 50 mm |
0.00 kg / 0.01 LBS
164 Gs
|
0.00 kg / 0.00 LBS
1 g / 0.0 N
|
0.00 kg / 0.00 LBS
~0 Gs
|
| 60 mm |
0.00 kg / 0.00 LBS
104 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
70 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
49 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
36 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
27 Gs
|
0.00 kg / 0.00 LBS
0 g / 0.0 N
|
0.00 kg / 0.00 LBS
~0 Gs
|
Table 7: Safety (HSE) (electronics) - precautionary measures
MW 12x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 7.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 6.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 4.5 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 3.5 cm |
| Car key | 50 Gs (5.0 mT) | 3.5 cm |
| Payment card | 400 Gs (40.0 mT) | 1.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.5 cm |
Table 8: Impact energy (kinetic energy) - warning
MW 12x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
18.58 km/h
(5.16 m/s)
|
0.11 J | |
| 30 mm |
18.75 km/h
(5.21 m/s)
|
0.11 J | |
| 50 mm |
18.75 km/h
(5.21 m/s)
|
0.12 J | |
| 100 mm |
18.75 km/h
(5.21 m/s)
|
0.12 J |
Table 9: Anti-corrosion coating durability
MW 12x10 / 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 12x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 6 105 Mx | 61.1 µWb |
| Pc Coefficient | 0.81 | High (Stable) |
Table 11: Physics of underwater searching
MW 12x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 4.83 kg | Standard |
| Water (riverbed) |
5.53 kg
(+0.70 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Note: On a vertical surface, the magnet holds only approx. 20-30% of its max power.
2. Plate thickness effect
*Thin steel (e.g. 0.5mm PC case) drastically weakens the holding force.
3. Thermal stability
*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) = 0.81
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.
Material specification
| 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Check out also deals
Strengths as well as weaknesses of neodymium magnets.
Strengths
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (according to literature),
- They show high resistance to demagnetization induced by presence of other magnetic fields,
- Thanks to the shiny finish, the plating of Ni-Cu-Ni, gold-plated, or silver-plated gives an professional appearance,
- Magnetic induction on the working layer of the magnet is very high,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- In view of the possibility of flexible molding and adaptation to specialized needs, NdFeB magnets can be manufactured in a variety of forms and dimensions, which amplifies use scope,
- Key role in modern technologies – they are used in hard drives, drive modules, medical devices, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in miniature devices
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce 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 recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Due to limitations in realizing nuts and complex forms in magnets, we recommend using cover - magnetic mechanism.
- Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these products are able to be problematic in diagnostics medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Best holding force of the magnet in ideal parameters – what it depends on?
- on a base made of mild steel, perfectly concentrating the magnetic field
- possessing a thickness of min. 10 mm to avoid saturation
- with a plane perfectly flat
- under conditions of ideal adhesion (metal-to-metal)
- for force applied at a right angle (pull-off, not shear)
- at standard ambient temperature
Key elements affecting lifting force
- Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped to the other side.
- Plate material – low-carbon steel attracts best. Alloy steels reduce magnetic properties and holding force.
- Smoothness – ideal contact is possible only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Temperature – heating the magnet results in weakening of force. Check the maximum operating temperature for a given model.
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the holding force.
Safe handling of NdFeB magnets
Avoid contact if allergic
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, immediately stop handling magnets and use protective gear.
Mechanical processing
Mechanical processing of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Bone fractures
Protect your hands. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Heat warning
Do not overheat. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).
Medical implants
Patients with a ICD have to maintain an safe separation from magnets. The magnetic field can disrupt the operation of the life-saving device.
Safe distance
Avoid bringing magnets near a purse, computer, or TV. The magnetic field can permanently damage these devices and erase data from cards.
Powerful field
Use magnets with awareness. Their immense force can shock even professionals. Plan your moves and respect their power.
Risk of cracking
NdFeB magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets leads to them breaking into small pieces.
This is not a toy
Always keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are life-threatening.
GPS and phone interference
Remember: rare earth magnets produce a field that confuses precision electronics. Keep a safe distance from your phone, device, and navigation systems.
