MW 5x15 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010084
GTIN: 5906301810834
Diameter Ø
5 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
2.21 g
Magnetization Direction
↑ axial
Load capacity
0.48 kg / 4.68 N
Magnetic Induction
610.03 mT / 6100 Gs
Coating
[NiCuNi] Nickel
1.107 ZŁ with VAT / pcs + price for transport
0.900 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?Not sure about your choice?
Call us
+48 22 499 98 98
otherwise drop us a message using
our online form
our website.
Force as well as appearance of a neodymium magnet can be analyzed with our
our magnetic calculator.
Order by 14:00 and we’ll ship today!
MW 5x15 / N38 - cylindrical magnet
Specification / characteristics MW 5x15 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010084 |
| GTIN | 5906301810834 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 5 mm [±0,1 mm] |
| Height | 15 mm [±0,1 mm] |
| Weight | 2.21 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 0.48 kg / 4.68 N |
| Magnetic Induction ~ ? | 610.03 mT / 6100 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 | T |
| 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 106 | °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 - report
The following values represent the direct effect of a physical simulation. Results rely on algorithms for the material NdFeB. Operational parameters might slightly deviate from the simulation results. Treat these calculations as a reference point during assembly planning.
MW 5x15 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg) | Risk Status |
|---|---|---|---|
| 0 mm |
6091 Gs
609.1 mT
|
0.48 kg / 480.0 g
4.7 N
|
low risk |
| 1 mm |
3823 Gs
382.3 mT
|
0.19 kg / 189.1 g
1.9 N
|
low risk |
| 2 mm |
2261 Gs
226.1 mT
|
0.07 kg / 66.1 g
0.6 N
|
low risk |
| 3 mm |
1378 Gs
137.8 mT
|
0.02 kg / 24.6 g
0.2 N
|
low risk |
| 5 mm |
607 Gs
60.7 mT
|
0.00 kg / 4.8 g
0.0 N
|
low risk |
| 10 mm |
154 Gs
15.4 mT
|
0.00 kg / 0.3 g
0.0 N
|
low risk |
| 15 mm |
63 Gs
6.3 mT
|
0.00 kg / 0.1 g
0.0 N
|
low risk |
| 20 mm |
32 Gs
3.2 mT
|
0.00 kg / 0.0 g
0.0 N
|
low risk |
| 30 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.0 g
0.0 N
|
low risk |
| 50 mm |
3 Gs
0.3 mT
|
0.00 kg / 0.0 g
0.0 N
|
low risk |
MW 5x15 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.10 kg / 96.0 g
0.9 N
|
| 1 mm | Stal (~0.2) |
0.04 kg / 38.0 g
0.4 N
|
| 2 mm | Stal (~0.2) |
0.01 kg / 14.0 g
0.1 N
|
| 3 mm | Stal (~0.2) |
0.00 kg / 4.0 g
0.0 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 15 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 20 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 30 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
| 50 mm | Stal (~0.2) |
0.00 kg / 0.0 g
0.0 N
|
MW 5x15 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.14 kg / 144.0 g
1.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.10 kg / 96.0 g
0.9 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.05 kg / 48.0 g
0.5 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.24 kg / 240.0 g
2.4 N
|
MW 5x15 / N38
| Steel thickness (mm) | % power | Real pull force (kg) |
|---|---|---|
| 0.5 mm |
|
0.05 kg / 48.0 g
0.5 N
|
| 1 mm |
|
0.12 kg / 120.0 g
1.2 N
|
| 2 mm |
|
0.24 kg / 240.0 g
2.4 N
|
| 5 mm |
|
0.48 kg / 480.0 g
4.7 N
|
| 10 mm |
|
0.48 kg / 480.0 g
4.7 N
|
MW 5x15 / N38
| Ambient temp. (°C) | Power loss | Remaining pull | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.48 kg / 480.0 g
4.7 N
|
OK |
| 40 °C | -2.2% |
0.47 kg / 469.4 g
4.6 N
|
OK |
| 60 °C | -4.4% |
0.46 kg / 458.9 g
4.5 N
|
OK |
| 80 °C | -6.6% |
0.45 kg / 448.3 g
4.4 N
|
|
| 100 °C | -28.8% |
0.34 kg / 341.8 g
3.4 N
|
MW 5x15 / N38
| Gap (mm) | Attraction (kg) (N-S) | Repulsion (kg) (N-N) |
|---|---|---|
| 0 mm |
0.48 kg / 484 g
4.7 N
12 231 Gs
|
N/A |
| 1 mm |
0.19 kg / 189 g
1.9 N
9 810 Gs
|
0.17 kg / 170 g
1.7 N
~0 Gs
|
| 2 mm |
0.07 kg / 66 g
0.6 N
7 646 Gs
|
0.06 kg / 60 g
0.6 N
~0 Gs
|
| 3 mm |
0.02 kg / 25 g
0.2 N
5 880 Gs
|
0.02 kg / 22 g
0.2 N
~0 Gs
|
| 5 mm |
0.00 kg / 5 g
0.0 N
3 507 Gs
|
0.00 kg / 0 g
0.0 N
~0 Gs
|
| 10 mm |
0.00 kg / 0 g
0.0 N
1 213 Gs
|
0.00 kg / 0 g
0.0 N
~0 Gs
|
| 20 mm |
0.00 kg / 0 g
0.0 N
309 Gs
|
0.00 kg / 0 g
0.0 N
~0 Gs
|
| 50 mm |
0.00 kg / 0 g
0.0 N
37 Gs
|
0.00 kg / 0 g
0.0 N
~0 Gs
|
MW 5x15 / 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) | 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) | 1.0 cm |
MW 5x15 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
14.87 km/h
(4.13 m/s)
|
0.02 J | |
| 30 mm |
25.74 km/h
(7.15 m/s)
|
0.06 J | |
| 50 mm |
33.23 km/h
(9.23 m/s)
|
0.09 J | |
| 100 mm |
47.00 km/h
(13.06 m/s)
|
0.19 J |
MW 5x15 / 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) |
MW 5x15 / N38
| Parameter | Value | Jedn. SI / Opis |
|---|---|---|
| Strumień (Flux) | 1 382 Mx | 13.8 µWb |
| Współczynnik Pc | 1.38 | Wysoki (Stabilny) |
MW 5x15 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 0.48 kg | Standard |
| Water (riverbed) |
0.55 kg
(+0.07 kg Buoyancy gain)
|
+14.5% |
See also offers
Advantages as well as disadvantages of NdFeB magnets.
Besides their tremendous pulling force, neodymium magnets offer the following advantages:
- They retain full power for almost 10 years – the loss is just ~1% (based on simulations),
- They are noted for resistance to demagnetization induced by external field influence,
- In other words, due to the shiny layer of silver, the element is aesthetically pleasing,
- Magnets possess very high magnetic induction on the active area,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of accurate modeling as well as modifying to precise conditions,
- Huge importance in electronics industry – they serve a role in computer drives, electromotive mechanisms, medical equipment, also modern systems.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Disadvantages of NdFeB magnets:
- At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We suggest a housing - magnetic mount, due to difficulties in producing threads inside the magnet and complicated forms.
- Health risk related to microscopic parts of magnets are risky, in case of ingestion, which becomes key in the context of child safety. Additionally, small components of these devices can disrupt the diagnostic process medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Maximum lifting capacity of the magnet – what affects it?
The lifting capacity listed is a measurement result conducted under the following configuration:
- using a base made of low-carbon steel, acting as a circuit closing element
- with a thickness no less than 10 mm
- characterized by smoothness
- without the slightest air gap between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at ambient temperature approx. 20 degrees Celsius
Practical lifting capacity: influencing factors
It is worth knowing that the magnet holding may be lower subject to the following factors, starting with the most relevant:
- Distance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Direction of force – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Steel grade – ideal substrate is high-permeability steel. Hardened steels may attract less.
- Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.
* Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a small distance {between} the magnet and the plate decreases the holding force.
Precautions when working with NdFeB magnets
Medical interference
For implant holders: Powerful magnets affect medical devices. Keep at least 30 cm distance or request help to work with the magnets.
Protective goggles
Protect your eyes. Magnets can fracture upon violent connection, launching shards into the air. Wear goggles.
Safe distance
Intense magnetic fields can destroy records on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.
Compass and GPS
GPS units and smartphones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.
Swallowing risk
Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Keep away from children and animals.
Sensitization to coating
Studies show that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, prevent touching magnets with bare hands or opt for coated magnets.
Serious injuries
Pinching hazard: The pulling power is so great that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.
Dust explosion hazard
Powder created during machining of magnets is combustible. Do not drill into magnets unless you are an expert.
Handling guide
Be careful. Neodymium magnets attract from a distance and snap with huge force, often faster than you can move away.
Maximum temperature
Watch the temperature. Heating the magnet to high heat will ruin its properties and strength.
Attention!
Need more info? Check our post: Why are neodymium magnets dangerous?
