MW 10x2 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010006
GTIN/EAN: 5906301810056
Diameter Ø
10 mm [±0,1 mm]
Height
2 mm [±0,1 mm]
Weight
1.18 g
Magnetization Direction
↑ axial
Load capacity
1.27 kg / 12.50 N
Magnetic Induction
230.11 mT / 2301 Gs
Coating
[NiCuNi] Nickel
0.467 ZŁ with VAT / pcs + price for transport
0.380 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - MW 10x2 / N38 - cylindrical magnet
Specification / characteristics - MW 10x2 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010006 |
| GTIN/EAN | 5906301810056 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 10 mm [±0,1 mm] |
| Height | 2 mm [±0,1 mm] |
| Weight | 1.18 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 1.27 kg / 12.50 N |
| Magnetic Induction ~ ? | 230.11 mT / 2301 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 - data
Presented values constitute the result of a mathematical calculation. Values rely on algorithms for the class Nd2Fe14B. Operational conditions might slightly differ from theoretical values. Use these data as a reference point during assembly planning.
Table 1: Static force (force vs distance) - interaction chart
MW 10x2 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
2300 Gs
230.0 mT
|
1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
|
low risk |
| 1 mm |
1974 Gs
197.4 mT
|
0.94 kg / 2.06 lbs
935.3 g / 9.2 N
|
low risk |
| 2 mm |
1570 Gs
157.0 mT
|
0.59 kg / 1.31 lbs
592.1 g / 5.8 N
|
low risk |
| 3 mm |
1194 Gs
119.4 mT
|
0.34 kg / 0.75 lbs
342.3 g / 3.4 N
|
low risk |
| 5 mm |
661 Gs
66.1 mT
|
0.10 kg / 0.23 lbs
104.9 g / 1.0 N
|
low risk |
| 10 mm |
178 Gs
17.8 mT
|
0.01 kg / 0.02 lbs
7.6 g / 0.1 N
|
low risk |
| 15 mm |
66 Gs
6.6 mT
|
0.00 kg / 0.00 lbs
1.1 g / 0.0 N
|
low risk |
| 20 mm |
31 Gs
3.1 mT
|
0.00 kg / 0.00 lbs
0.2 g / 0.0 N
|
low risk |
| 30 mm |
10 Gs
1.0 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
low risk |
| 50 mm |
2 Gs
0.2 mT
|
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
|
low risk |
Table 2: Shear hold (vertical surface)
MW 10x2 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.25 kg / 0.56 lbs
254.0 g / 2.5 N
|
| 1 mm | Stal (~0.2) |
0.19 kg / 0.41 lbs
188.0 g / 1.8 N
|
| 2 mm | Stal (~0.2) |
0.12 kg / 0.26 lbs
118.0 g / 1.2 N
|
| 3 mm | Stal (~0.2) |
0.07 kg / 0.15 lbs
68.0 g / 0.7 N
|
| 5 mm | Stal (~0.2) |
0.02 kg / 0.04 lbs
20.0 g / 0.2 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 lbs
2.0 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: Vertical assembly (shearing) - behavior on slippery surfaces
MW 10x2 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.38 kg / 0.84 lbs
381.0 g / 3.7 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.25 kg / 0.56 lbs
254.0 g / 2.5 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.13 kg / 0.28 lbs
127.0 g / 1.2 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.64 kg / 1.40 lbs
635.0 g / 6.2 N
|
Table 4: Material efficiency (saturation) - power losses
MW 10x2 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.13 kg / 0.28 lbs
127.0 g / 1.2 N
|
| 1 mm |
|
0.32 kg / 0.70 lbs
317.5 g / 3.1 N
|
| 2 mm |
|
0.64 kg / 1.40 lbs
635.0 g / 6.2 N
|
| 3 mm |
|
0.95 kg / 2.10 lbs
952.5 g / 9.3 N
|
| 5 mm |
|
1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
|
| 10 mm |
|
1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
|
| 11 mm |
|
1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
|
| 12 mm |
|
1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
|
Table 5: Thermal resistance (stability) - power drop
MW 10x2 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
1.27 kg / 2.80 lbs
1270.0 g / 12.5 N
|
OK |
| 40 °C | -2.2% |
1.24 kg / 2.74 lbs
1242.1 g / 12.2 N
|
OK |
| 60 °C | -4.4% |
1.21 kg / 2.68 lbs
1214.1 g / 11.9 N
|
|
| 80 °C | -6.6% |
1.19 kg / 2.62 lbs
1186.2 g / 11.6 N
|
|
| 100 °C | -28.8% |
0.90 kg / 1.99 lbs
904.2 g / 8.9 N
|
Table 6: Magnet-Magnet interaction (attraction) - field range
MW 10x2 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
2.56 kg / 5.65 lbs
3 867 Gs
|
0.38 kg / 0.85 lbs
384 g / 3.8 N
|
N/A |
| 1 mm |
2.25 kg / 4.96 lbs
4 312 Gs
|
0.34 kg / 0.74 lbs
338 g / 3.3 N
|
2.03 kg / 4.46 lbs
~0 Gs
|
| 2 mm |
1.89 kg / 4.16 lbs
3 948 Gs
|
0.28 kg / 0.62 lbs
283 g / 2.8 N
|
1.70 kg / 3.74 lbs
~0 Gs
|
| 3 mm |
1.52 kg / 3.36 lbs
3 548 Gs
|
0.23 kg / 0.50 lbs
229 g / 2.2 N
|
1.37 kg / 3.02 lbs
~0 Gs
|
| 5 mm |
0.92 kg / 2.02 lbs
2 750 Gs
|
0.14 kg / 0.30 lbs
137 g / 1.3 N
|
0.82 kg / 1.82 lbs
~0 Gs
|
| 10 mm |
0.21 kg / 0.47 lbs
1 322 Gs
|
0.03 kg / 0.07 lbs
32 g / 0.3 N
|
0.19 kg / 0.42 lbs
~0 Gs
|
| 20 mm |
0.02 kg / 0.03 lbs
355 Gs
|
0.00 kg / 0.01 lbs
2 g / 0.0 N
|
0.01 kg / 0.03 lbs
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 lbs
33 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
20 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
13 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: Protective zones (implants) - warnings
MW 10x2 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 4.0 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.5 cm |
| Timepiece | 20 Gs (2.0 mT) | 2.5 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 2.0 cm |
| Remote | 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) | 1.0 cm |
Table 8: Dynamics (cracking risk) - warning
MW 10x2 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
33.21 km/h
(9.22 m/s)
|
0.05 J | |
| 30 mm |
57.31 km/h
(15.92 m/s)
|
0.15 J | |
| 50 mm |
73.98 km/h
(20.55 m/s)
|
0.25 J | |
| 100 mm |
104.63 km/h
(29.06 m/s)
|
0.50 J |
Table 9: Anti-corrosion coating durability
MW 10x2 / 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 (Pc)
MW 10x2 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 2 097 Mx | 21.0 µWb |
| Pc Coefficient | 0.29 | Low (Flat) |
Table 11: Submerged application
MW 10x2 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 1.27 kg | Standard |
| Water (riverbed) |
1.45 kg
(+0.18 kg buoyancy gain)
|
+14.5% |
1. Sliding resistance
*Warning: On a vertical wall, the magnet holds merely approx. 20-30% of its nominal pull.
2. Steel saturation
*Thin metal sheet (e.g. 0.5mm PC case) drastically limits the holding force.
3. Temperature resistance
*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) = 0.29
The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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 |
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Advantages as well as disadvantages of rare earth magnets.
Advantages
- Their power is durable, and after approximately 10 years it drops only by ~1% (theoretically),
- Neodymium magnets are distinguished by remarkably resistant to magnetic field loss caused by external interference,
- In other words, due to the smooth layer of silver, the element is aesthetically pleasing,
- Magnets exhibit exceptionally strong magnetic induction on the outer side,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Due to the ability of precise shaping and customization to custom projects, NdFeB magnets can be modeled in a variety of forms and dimensions, which increases their versatility,
- Huge importance in future technologies – they find application in mass storage devices, electric motors, medical devices, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices
Disadvantages
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Health risk related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child health protection. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- using a plate made of low-carbon steel, acting as a magnetic yoke
- with a thickness of at least 10 mm
- with an ground touching surface
- under conditions of no distance (surface-to-surface)
- for force applied at a right angle (in the magnet axis)
- at standard ambient temperature
Lifting capacity in practice – influencing factors
- Space between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Material type – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
- Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
- Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.
Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Safety rules for work with NdFeB magnets
Serious injuries
Mind your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!
Threat to navigation
Remember: neodymium magnets generate a field that confuses precision electronics. Keep a safe distance from your mobile, device, and navigation systems.
Operating temperature
Watch the temperature. Heating the magnet to high heat will destroy its properties and pulling force.
Product not for children
Absolutely keep magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are very dangerous.
Fire risk
Dust created during machining of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Skin irritation risks
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop handling magnets and wear gloves.
Danger to pacemakers
Individuals with a ICD must maintain an large gap from magnets. The magnetism can interfere with the operation of the implant.
Magnets are brittle
Beware of splinters. Magnets can explode upon violent connection, launching shards into the air. Wear goggles.
Conscious usage
Handle magnets consciously. Their huge power can surprise even professionals. Plan your moves and do not underestimate their power.
Threat to electronics
Do not bring magnets near a wallet, computer, or screen. The magnetic field can destroy these devices and erase data from cards.
