MW 10x10 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010004
GTIN/EAN: 5906301810032
Diameter Ø
10 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
5.89 g
Magnetization Direction
↑ axial
Load capacity
3.18 kg / 31.15 N
Magnetic Induction
553.84 mT / 5538 Gs
Coating
[NiCuNi] Nickel
4.31 ZŁ with VAT / pcs + price for transport
3.50 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical of the product - MW 10x10 / N38 - cylindrical magnet
Specification / characteristics - MW 10x10 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010004 |
| GTIN/EAN | 5906301810032 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 10 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 5.89 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 3.18 kg / 31.15 N |
| Magnetic Induction ~ ? | 553.84 mT / 5538 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 |
Physical simulation of the product - report
These values are the result of a engineering analysis. Values were calculated on algorithms for the material Nd2Fe14B. Real-world performance might slightly differ. Please consider these calculations as a reference point during assembly planning.
Table 1: Static pull force (pull vs distance) - power drop
MW 10x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
5534 Gs
553.4 mT
|
3.18 kg / 7.01 lbs
3180.0 g / 31.2 N
|
strong |
| 1 mm |
4428 Gs
442.8 mT
|
2.04 kg / 4.49 lbs
2036.1 g / 20.0 N
|
strong |
| 2 mm |
3420 Gs
342.0 mT
|
1.21 kg / 2.68 lbs
1214.8 g / 11.9 N
|
safe |
| 3 mm |
2597 Gs
259.7 mT
|
0.70 kg / 1.54 lbs
700.2 g / 6.9 N
|
safe |
| 5 mm |
1498 Gs
149.8 mT
|
0.23 kg / 0.51 lbs
232.9 g / 2.3 N
|
safe |
| 10 mm |
469 Gs
46.9 mT
|
0.02 kg / 0.05 lbs
22.9 g / 0.2 N
|
safe |
| 15 mm |
198 Gs
19.8 mT
|
0.00 kg / 0.01 lbs
4.1 g / 0.0 N
|
safe |
| 20 mm |
101 Gs
10.1 mT
|
0.00 kg / 0.00 lbs
1.1 g / 0.0 N
|
safe |
| 30 mm |
36 Gs
3.6 mT
|
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
|
safe |
| 50 mm |
9 Gs
0.9 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
safe |
Table 2: Slippage capacity (wall)
MW 10x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.64 kg / 1.40 lbs
636.0 g / 6.2 N
|
| 1 mm | Stal (~0.2) |
0.41 kg / 0.90 lbs
408.0 g / 4.0 N
|
| 2 mm | Stal (~0.2) |
0.24 kg / 0.53 lbs
242.0 g / 2.4 N
|
| 3 mm | Stal (~0.2) |
0.14 kg / 0.31 lbs
140.0 g / 1.4 N
|
| 5 mm | Stal (~0.2) |
0.05 kg / 0.10 lbs
46.0 g / 0.5 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.01 lbs
4.0 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 10x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.95 kg / 2.10 lbs
954.0 g / 9.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.64 kg / 1.40 lbs
636.0 g / 6.2 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.32 kg / 0.70 lbs
318.0 g / 3.1 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
1.59 kg / 3.51 lbs
1590.0 g / 15.6 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 10x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.32 kg / 0.70 lbs
318.0 g / 3.1 N
|
| 1 mm |
|
0.80 kg / 1.75 lbs
795.0 g / 7.8 N
|
| 2 mm |
|
1.59 kg / 3.51 lbs
1590.0 g / 15.6 N
|
| 3 mm |
|
2.39 kg / 5.26 lbs
2385.0 g / 23.4 N
|
| 5 mm |
|
3.18 kg / 7.01 lbs
3180.0 g / 31.2 N
|
| 10 mm |
|
3.18 kg / 7.01 lbs
3180.0 g / 31.2 N
|
| 11 mm |
|
3.18 kg / 7.01 lbs
3180.0 g / 31.2 N
|
| 12 mm |
|
3.18 kg / 7.01 lbs
3180.0 g / 31.2 N
|
Table 5: Thermal resistance (stability) - power drop
MW 10x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
3.18 kg / 7.01 lbs
3180.0 g / 31.2 N
|
OK |
| 40 °C | -2.2% |
3.11 kg / 6.86 lbs
3110.0 g / 30.5 N
|
OK |
| 60 °C | -4.4% |
3.04 kg / 6.70 lbs
3040.1 g / 29.8 N
|
OK |
| 80 °C | -6.6% |
2.97 kg / 6.55 lbs
2970.1 g / 29.1 N
|
|
| 100 °C | -28.8% |
2.26 kg / 4.99 lbs
2264.2 g / 22.2 N
|
Table 6: Two magnets (repulsion) - forces in the system
MW 10x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
14.83 kg / 32.69 lbs
6 003 Gs
|
2.22 kg / 4.90 lbs
2224 g / 21.8 N
|
N/A |
| 1 mm |
12.01 kg / 26.48 lbs
9 962 Gs
|
1.80 kg / 3.97 lbs
1802 g / 17.7 N
|
10.81 kg / 23.83 lbs
~0 Gs
|
| 2 mm |
9.50 kg / 20.93 lbs
8 857 Gs
|
1.42 kg / 3.14 lbs
1424 g / 14.0 N
|
8.55 kg / 18.84 lbs
~0 Gs
|
| 3 mm |
7.38 kg / 16.27 lbs
7 809 Gs
|
1.11 kg / 2.44 lbs
1107 g / 10.9 N
|
6.64 kg / 14.64 lbs
~0 Gs
|
| 5 mm |
4.31 kg / 9.50 lbs
5 968 Gs
|
0.65 kg / 1.43 lbs
647 g / 6.3 N
|
3.88 kg / 8.55 lbs
~0 Gs
|
| 10 mm |
1.09 kg / 2.39 lbs
2 996 Gs
|
0.16 kg / 0.36 lbs
163 g / 1.6 N
|
0.98 kg / 2.16 lbs
~0 Gs
|
| 20 mm |
0.11 kg / 0.24 lbs
939 Gs
|
0.02 kg / 0.04 lbs
16 g / 0.2 N
|
0.10 kg / 0.21 lbs
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 lbs
116 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
73 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
49 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
34 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
25 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
19 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 10x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 6.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 5.0 cm |
| Timepiece | 20 Gs (2.0 mT) | 4.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 3.0 cm |
| Remote | 50 Gs (5.0 mT) | 3.0 cm |
| Payment card | 400 Gs (40.0 mT) | 1.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.0 cm |
Table 8: Collisions (kinetic energy) - warning
MW 10x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
23.54 km/h
(6.54 m/s)
|
0.13 J | |
| 30 mm |
40.59 km/h
(11.27 m/s)
|
0.37 J | |
| 50 mm |
52.40 km/h
(14.56 m/s)
|
0.62 J | |
| 100 mm |
74.10 km/h
(20.58 m/s)
|
1.25 J |
Table 9: Surface protection spec
MW 10x10 / 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 10x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 4 481 Mx | 44.8 µWb |
| Pc Coefficient | 0.89 | High (Stable) |
Table 11: Submerged application
MW 10x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 3.18 kg | Standard |
| Water (riverbed) |
3.64 kg
(+0.46 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Warning: On a vertical wall, the magnet retains merely approx. 20-30% of its max power.
2. Steel saturation
*Thin steel (e.g. computer case) severely weakens the holding force.
3. Temperature resistance
*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) = 0.89
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 deals
Pros and cons of rare earth magnets.
Benefits
- They have unchanged lifting capacity, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
- Neodymium magnets are distinguished by exceptionally resistant to magnetic field loss caused by magnetic disturbances,
- Thanks to the elegant finish, the surface of nickel, gold, or silver-plated gives an modern appearance,
- Magnetic induction on the top side of the magnet remains strong,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- In view of the possibility of free shaping and customization to unique solutions, neodymium magnets can be modeled in a broad palette of shapes and sizes, which increases their versatility,
- Fundamental importance in innovative solutions – they are utilized in hard drives, brushless drives, medical devices, as well as multitasking production systems.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength 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
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing nuts and complex forms in magnets, we propose using cover - magnetic holder.
- Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that small elements of these devices are able to complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- with the application of a yoke made of special test steel, guaranteeing maximum field concentration
- possessing a thickness of min. 10 mm to avoid saturation
- with a surface cleaned and smooth
- with total lack of distance (without coatings)
- under perpendicular force vector (90-degree angle)
- in neutral thermal conditions
Practical aspects of lifting capacity – factors
- Clearance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Load vector – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- 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 performed on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the load capacity.
H&S for magnets
Thermal limits
Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.
Do not underestimate power
Handle with care. Rare earth magnets attract from a distance and snap with massive power, often quicker than you can react.
Pinching danger
Protect your hands. Two powerful magnets will join immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Allergy Warning
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation happens, immediately stop working with magnets and wear gloves.
Flammability
Drilling and cutting of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
GPS Danger
A powerful magnetic field disrupts the operation of compasses in phones and GPS navigation. Do not bring magnets close to a device to prevent damaging the sensors.
Adults only
Only for adults. Small elements pose a choking risk, causing serious injuries. Store out of reach of children and animals.
Keep away from computers
Avoid bringing magnets close to a purse, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.
Danger to pacemakers
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Fragile material
Neodymium magnets are sintered ceramics, which means they are very brittle. Impact of two magnets leads to them shattering into shards.
