MW 5x15 / N38 - cylindrical magnet
cylindrical magnet
Catalog no 010084
GTIN/EAN: 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?
Give us a call
+48 888 99 98 98
if you prefer let us know via
request form
through our site.
Specifications and form of neodymium magnets can be tested using our
force calculator.
Same-day shipping for orders placed before 14:00.
Physical properties - MW 5x15 / N38 - cylindrical magnet
Specification / characteristics - MW 5x15 / N38 - cylindrical magnet
| properties | values |
|---|---|
| Cat. no. | 010084 |
| GTIN/EAN | 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 | 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 |
Engineering simulation of the product - report
These values constitute the direct effect of a mathematical calculation. Values rely on models for the material Nd2Fe14B. Real-world parameters may differ from theoretical values. Use these data as a preliminary roadmap during assembly planning.
Table 1: Static pull force (pull vs distance) - interaction chart
MW 5x15 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
6091 Gs
609.1 mT
|
0.48 kg / 1.06 pounds
480.0 g / 4.7 N
|
low risk |
| 1 mm |
3823 Gs
382.3 mT
|
0.19 kg / 0.42 pounds
189.1 g / 1.9 N
|
low risk |
| 2 mm |
2261 Gs
226.1 mT
|
0.07 kg / 0.15 pounds
66.1 g / 0.6 N
|
low risk |
| 3 mm |
1378 Gs
137.8 mT
|
0.02 kg / 0.05 pounds
24.6 g / 0.2 N
|
low risk |
| 5 mm |
607 Gs
60.7 mT
|
0.00 kg / 0.01 pounds
4.8 g / 0.0 N
|
low risk |
| 10 mm |
154 Gs
15.4 mT
|
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
|
low risk |
| 15 mm |
63 Gs
6.3 mT
|
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
|
low risk |
| 20 mm |
32 Gs
3.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 30 mm |
12 Gs
1.2 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
| 50 mm |
3 Gs
0.3 mT
|
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
low risk |
Table 2: Vertical force (vertical surface)
MW 5x15 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
0.10 kg / 0.21 pounds
96.0 g / 0.9 N
|
| 1 mm | Stal (~0.2) |
0.04 kg / 0.08 pounds
38.0 g / 0.4 N
|
| 2 mm | Stal (~0.2) |
0.01 kg / 0.03 pounds
14.0 g / 0.1 N
|
| 3 mm | Stal (~0.2) |
0.00 kg / 0.01 pounds
4.0 g / 0.0 N
|
| 5 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
|
| 10 mm | Stal (~0.2) |
0.00 kg / 0.00 pounds
0.0 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) - behavior on slippery surfaces
MW 5x15 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
0.14 kg / 0.32 pounds
144.0 g / 1.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
0.10 kg / 0.21 pounds
96.0 g / 0.9 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
0.05 kg / 0.11 pounds
48.0 g / 0.5 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
0.24 kg / 0.53 pounds
240.0 g / 2.4 N
|
Table 4: Material efficiency (saturation) - power losses
MW 5x15 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.05 kg / 0.11 pounds
48.0 g / 0.5 N
|
| 1 mm |
|
0.12 kg / 0.26 pounds
120.0 g / 1.2 N
|
| 2 mm |
|
0.24 kg / 0.53 pounds
240.0 g / 2.4 N
|
| 3 mm |
|
0.36 kg / 0.79 pounds
360.0 g / 3.5 N
|
| 5 mm |
|
0.48 kg / 1.06 pounds
480.0 g / 4.7 N
|
| 10 mm |
|
0.48 kg / 1.06 pounds
480.0 g / 4.7 N
|
| 11 mm |
|
0.48 kg / 1.06 pounds
480.0 g / 4.7 N
|
| 12 mm |
|
0.48 kg / 1.06 pounds
480.0 g / 4.7 N
|
Table 5: Thermal stability (material behavior) - power drop
MW 5x15 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
0.48 kg / 1.06 pounds
480.0 g / 4.7 N
|
OK |
| 40 °C | -2.2% |
0.47 kg / 1.03 pounds
469.4 g / 4.6 N
|
OK |
| 60 °C | -4.4% |
0.46 kg / 1.01 pounds
458.9 g / 4.5 N
|
OK |
| 80 °C | -6.6% |
0.45 kg / 0.99 pounds
448.3 g / 4.4 N
|
|
| 100 °C | -28.8% |
0.34 kg / 0.75 pounds
341.8 g / 3.4 N
|
Table 6: Two magnets (repulsion) - field range
MW 5x15 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
4.49 kg / 9.90 pounds
6 154 Gs
|
0.67 kg / 1.49 pounds
674 g / 6.6 N
|
N/A |
| 1 mm |
2.91 kg / 6.42 pounds
9 810 Gs
|
0.44 kg / 0.96 pounds
437 g / 4.3 N
|
2.62 kg / 5.78 pounds
~0 Gs
|
| 2 mm |
1.77 kg / 3.90 pounds
7 646 Gs
|
0.27 kg / 0.59 pounds
265 g / 2.6 N
|
1.59 kg / 3.51 pounds
~0 Gs
|
| 3 mm |
1.05 kg / 2.31 pounds
5 880 Gs
|
0.16 kg / 0.35 pounds
157 g / 1.5 N
|
0.94 kg / 2.08 pounds
~0 Gs
|
| 5 mm |
0.37 kg / 0.82 pounds
3 507 Gs
|
0.06 kg / 0.12 pounds
56 g / 0.5 N
|
0.34 kg / 0.74 pounds
~0 Gs
|
| 10 mm |
0.04 kg / 0.10 pounds
1 213 Gs
|
0.01 kg / 0.01 pounds
7 g / 0.1 N
|
0.04 kg / 0.09 pounds
~0 Gs
|
| 20 mm |
0.00 kg / 0.01 pounds
309 Gs
|
0.00 kg / 0.00 pounds
0 g / 0.0 N
|
0.00 kg / 0.00 pounds
~0 Gs
|
| 50 mm |
0.00 kg / 0.00 pounds
37 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
24 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
16 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
11 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
8 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
6 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 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 |
| Mobile device | 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 |
Table 8: Collisions (cracking risk) - warning
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 |
Table 9: Coating parameters (durability)
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) |
Table 10: Construction data (Pc)
MW 5x15 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 1 382 Mx | 13.8 µWb |
| Pc Coefficient | 1.38 | High (Stable) |
Table 11: Underwater work (magnet fishing)
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% |
1. Vertical hold
*Warning: On a vertical wall, the magnet holds merely approx. 20-30% of its perpendicular strength.
2. Plate thickness effect
*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.
3. Temperature resistance
*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) = 1.38
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.
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 |
View also offers
Strengths and weaknesses of Nd2Fe14B magnets.
Benefits
- They do not lose magnetism, even during approximately ten years – the drop in strength is only ~1% (theoretically),
- They show high resistance to demagnetization induced by external magnetic fields,
- By covering with a decorative layer of silver, the element presents an nice look,
- Magnetic induction on the top side of the magnet is maximum,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of detailed machining and optimizing to individual conditions,
- Significant place in innovative solutions – they serve a role in hard drives, electromotive mechanisms, medical equipment, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which enables their usage in small systems
Cons
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing threads and complicated shapes in magnets, we recommend using casing - magnetic mechanism.
- Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products can disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Maximum lifting capacity of the magnet – what affects it?
- using a plate made of low-carbon steel, serving as a ideal flux conductor
- with a thickness of at least 10 mm
- with a plane perfectly flat
- with total lack of distance (without coatings)
- during pulling in a direction vertical to the mounting surface
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Clearance – existence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Metal type – different alloys attracts identically. High carbon content worsen the attraction effect.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
- Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Safe handling of neodymium magnets
Bone fractures
Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and broken bones. Use thick gloves.
Magnetic interference
Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.
Keep away from children
Always keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.
Fire warning
Dust created during cutting of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Electronic devices
Powerful magnetic fields can destroy records on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.
Pacemakers
Patients with a heart stimulator have to keep an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.
Maximum temperature
Keep cool. Neodymium magnets are sensitive to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).
Material brittleness
NdFeB magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets leads to them breaking into shards.
Sensitization to coating
Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation happens, cease handling magnets and wear gloves.
Respect the power
Handle with care. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can react.
