MW 10x3 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010008
GTIN/EAN: 5906301810070
Diameter Ø
10 mm [±0,1 mm]
Height
3 mm [±0,1 mm]
Weight
1.77 g
Magnetization Direction
↑ axial
Load capacity
2.15 kg / 21.04 N
Magnetic Induction
318.70 mT / 3187 Gs
Coating
[NiCuNi] Nickel
0.726 ZŁ with VAT / pcs + price for transport
0.590 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Pick up the phone and ask
+48 22 499 98 98
otherwise get in touch by means of
our online form
our website.
Force along with shape of magnetic components can be verified with our
online calculation tool.
Order by 14:00 and we’ll ship today!
Technical - MW 10x3 / N38 - cylindrical magnet
Specification / characteristics - MW 10x3 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010008 |
| GTIN/EAN | 5906301810070 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 10 mm [±0,1 mm] |
| Height | 3 mm [±0,1 mm] |
| Weight | 1.77 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 2.15 kg / 21.04 N |
| Magnetic Induction ~ ? | 318.70 mT / 3187 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 |
Technical simulation of the assembly - data
The following values constitute the result of a physical analysis. Results were calculated on algorithms for the material Nd2Fe14B. Actual parameters may deviate from the simulation results. Use these calculations as a supplementary guide for designers.
Table 1: Static force (force vs distance) - interaction chart
MW 10x3 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
3185 Gs
318.5 mT
|
2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
|
warning |
| 1 mm |
2657 Gs
265.7 mT
|
1.50 kg / 3.30 pounds
1496.2 g / 14.7 N
|
safe |
| 2 mm |
2081 Gs
208.1 mT
|
0.92 kg / 2.02 pounds
918.1 g / 9.0 N
|
safe |
| 3 mm |
1573 Gs
157.3 mT
|
0.52 kg / 1.16 pounds
524.4 g / 5.1 N
|
safe |
| 5 mm |
874 Gs
87.4 mT
|
0.16 kg / 0.36 pounds
161.7 g / 1.6 N
|
safe |
| 10 mm |
241 Gs
24.1 mT
|
0.01 kg / 0.03 pounds
12.3 g / 0.1 N
|
safe |
| 15 mm |
92 Gs
9.2 mT
|
0.00 kg / 0.00 pounds
1.8 g / 0.0 N
|
safe |
| 20 mm |
44 Gs
4.4 mT
|
0.00 kg / 0.00 pounds
0.4 g / 0.0 N
|
safe |
| 30 mm |
14 Gs
1.4 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
| 50 mm |
3 Gs
0.3 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
safe |
Table 2: Sliding hold (wall)
MW 10x3 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
| 1 mm | Stal (~0.2) |
0.30 kg / 0.66 pounds
300.0 g / 2.9 N
|
| 2 mm | Stal (~0.2) |
0.18 kg / 0.41 pounds
184.0 g / 1.8 N
|
| 3 mm | Stal (~0.2) |
0.10 kg / 0.23 pounds
104.0 g / 1.0 N
|
| 5 mm | Stal (~0.2) |
0.03 kg / 0.07 pounds
32.0 g / 0.3 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
2.0 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 (sliding) - vertical pull
MW 10x3 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.64 kg / 1.42 pounds
645.0 g / 6.3 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.43 kg / 0.95 pounds
430.0 g / 4.2 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
1.08 kg / 2.37 pounds
1075.0 g / 10.5 N
|
Table 4: Steel thickness (saturation) - power losses
MW 10x3 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.22 kg / 0.47 pounds
215.0 g / 2.1 N
|
| 1 mm |
|
0.54 kg / 1.18 pounds
537.5 g / 5.3 N
|
| 2 mm |
|
1.08 kg / 2.37 pounds
1075.0 g / 10.5 N
|
| 3 mm |
|
1.61 kg / 3.55 pounds
1612.5 g / 15.8 N
|
| 5 mm |
|
2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
|
| 10 mm |
|
2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
|
| 11 mm |
|
2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
|
| 12 mm |
|
2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
|
Table 5: Thermal stability (material behavior) - resistance threshold
MW 10x3 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
2.15 kg / 4.74 pounds
2150.0 g / 21.1 N
|
OK |
| 40 °C | -2.2% |
2.10 kg / 4.64 pounds
2102.7 g / 20.6 N
|
OK |
| 60 °C | -4.4% |
2.06 kg / 4.53 pounds
2055.4 g / 20.2 N
|
|
| 80 °C | -6.6% |
2.01 kg / 4.43 pounds
2008.1 g / 19.7 N
|
|
| 100 °C | -28.8% |
1.53 kg / 3.37 pounds
1530.8 g / 15.0 N
|
Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 10x3 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
4.91 kg / 10.83 pounds
4 754 Gs
|
0.74 kg / 1.62 pounds
737 g / 7.2 N
|
N/A |
| 1 mm |
4.18 kg / 9.22 pounds
5 877 Gs
|
0.63 kg / 1.38 pounds
627 g / 6.2 N
|
3.76 kg / 8.30 pounds
~0 Gs
|
| 2 mm |
3.42 kg / 7.54 pounds
5 314 Gs
|
0.51 kg / 1.13 pounds
513 g / 5.0 N
|
3.08 kg / 6.78 pounds
~0 Gs
|
| 3 mm |
2.71 kg / 5.98 pounds
4 732 Gs
|
0.41 kg / 0.90 pounds
407 g / 4.0 N
|
2.44 kg / 5.38 pounds
~0 Gs
|
| 5 mm |
1.59 kg / 3.52 pounds
3 630 Gs
|
0.24 kg / 0.53 pounds
239 g / 2.3 N
|
1.44 kg / 3.16 pounds
~0 Gs
|
| 10 mm |
0.37 kg / 0.81 pounds
1 747 Gs
|
0.06 kg / 0.12 pounds
55 g / 0.5 N
|
0.33 kg / 0.73 pounds
~0 Gs
|
| 20 mm |
0.03 kg / 0.06 pounds
483 Gs
|
0.00 kg / 0.01 pounds
4 g / 0.0 N
|
0.03 kg / 0.06 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
48 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
29 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
19 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
13 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
9 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
7 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
Table 7: Safety (HSE) (implants) - precautionary measures
MW 10x3 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 4.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 3.5 cm |
| Timepiece | 20 Gs (2.0 mT) | 3.0 cm |
| Phone / Smartphone | 40 Gs (4.0 mT) | 2.5 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) | 1.0 cm |
Table 8: Impact energy (cracking risk) - warning
MW 10x3 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
35.27 km/h
(9.80 m/s)
|
0.08 J | |
| 30 mm |
60.88 km/h
(16.91 m/s)
|
0.25 J | |
| 50 mm |
78.60 km/h
(21.83 m/s)
|
0.42 J | |
| 100 mm |
111.15 km/h
(30.88 m/s)
|
0.84 J |
Table 9: Surface protection spec
MW 10x3 / 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 10x3 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 2 694 Mx | 26.9 µWb |
| Pc Coefficient | 0.40 | Low (Flat) |
Table 11: Physics of underwater searching
MW 10x3 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 2.15 kg | Standard |
| Water (riverbed) |
2.46 kg
(+0.31 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Note: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.
2. Plate thickness effect
*Thin metal sheet (e.g. computer case) drastically limits the holding force.
3. Heat tolerance
*For N38 grade, the safety limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.40
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Check out more proposals
Advantages and disadvantages of neodymium magnets.
Pros
- They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
- Magnets effectively resist against loss of magnetization caused by ambient magnetic noise,
- Thanks to the shiny finish, the surface of Ni-Cu-Ni, gold-plated, or silver gives an elegant appearance,
- The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to freedom in designing and the capacity to adapt to specific needs,
- Universal use in modern technologies – they serve a role in mass storage devices, electric motors, advanced medical instruments, and multitasking production systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets suffer a drop in power. 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
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- We suggest casing - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
- Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these devices can disrupt the diagnostic process medical in case of swallowing.
- Higher cost of purchase is a significant factor to consider 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 use of a yoke made of special test steel, guaranteeing full magnetic saturation
- possessing a massiveness of min. 10 mm to avoid saturation
- characterized by smoothness
- with direct contact (without impurities)
- for force applied at a right angle (pull-off, not shear)
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Space between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Material composition – different alloys attracts identically. Alloy additives worsen the attraction effect.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under perpendicular forces, in contrast under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Warnings
Operating temperature
Control the heat. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.
Powerful field
Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.
Crushing risk
Large magnets can smash fingers instantly. Under no circumstances place your hand between two strong magnets.
Implant safety
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Choking Hazard
Absolutely store magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are fatal.
Combustion hazard
Mechanical processing of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Cards and drives
Avoid bringing magnets close to a wallet, laptop, or TV. The magnetic field can permanently damage these devices and wipe information from cards.
Risk of cracking
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.
Threat to navigation
GPS units and mobile phones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Allergy Warning
Certain individuals suffer from a sensitization to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in an allergic reaction. It is best to use safety gloves.
