MPL 60x20x10 / N38 - lamellar magnet
lamellar magnet
Catalog no 020174
GTIN/EAN: 5906301811800
length
60 mm [±0,1 mm]
Width
20 mm [±0,1 mm]
Height
10 mm [±0,1 mm]
Weight
90 g
Magnetization Direction
↑ axial
Load capacity
35.61 kg / 349.34 N
Magnetic Induction
329.64 mT / 3296 Gs
Coating
[NiCuNi] Nickel
68.27 ZŁ with VAT / pcs + price for transport
55.50 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - MPL 60x20x10 / N38 - lamellar magnet
Specification / characteristics - MPL 60x20x10 / N38 - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020174 |
| GTIN/EAN | 5906301811800 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 60 mm [±0,1 mm] |
| Width | 20 mm [±0,1 mm] |
| Height | 10 mm [±0,1 mm] |
| Weight | 90 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 35.61 kg / 349.34 N |
| Magnetic Induction ~ ? | 329.64 mT / 3296 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 product - technical parameters
These values represent the outcome of a mathematical simulation. Values rely on algorithms for the material Nd2Fe14B. Operational performance might slightly differ. Please consider these calculations as a preliminary roadmap for designers.
Table 1: Static force (force vs gap) - characteristics
MPL 60x20x10 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
3296 Gs
329.6 mT
|
35.61 kg / 78.51 LBS
35610.0 g / 349.3 N
|
critical level |
| 1 mm |
3087 Gs
308.7 mT
|
31.25 kg / 68.89 LBS
31248.2 g / 306.5 N
|
critical level |
| 2 mm |
2866 Gs
286.6 mT
|
26.93 kg / 59.37 LBS
26929.3 g / 264.2 N
|
critical level |
| 3 mm |
2643 Gs
264.3 mT
|
22.90 kg / 50.48 LBS
22895.5 g / 224.6 N
|
critical level |
| 5 mm |
2216 Gs
221.6 mT
|
16.10 kg / 35.50 LBS
16103.3 g / 158.0 N
|
critical level |
| 10 mm |
1397 Gs
139.7 mT
|
6.40 kg / 14.11 LBS
6402.3 g / 62.8 N
|
warning |
| 15 mm |
907 Gs
90.7 mT
|
2.70 kg / 5.95 LBS
2697.7 g / 26.5 N
|
warning |
| 20 mm |
615 Gs
61.5 mT
|
1.24 kg / 2.73 LBS
1239.2 g / 12.2 N
|
safe |
| 30 mm |
314 Gs
31.4 mT
|
0.32 kg / 0.71 LBS
322.6 g / 3.2 N
|
safe |
| 50 mm |
108 Gs
10.8 mT
|
0.04 kg / 0.09 LBS
38.6 g / 0.4 N
|
safe |
Table 2: Sliding hold (wall)
MPL 60x20x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
7.12 kg / 15.70 LBS
7122.0 g / 69.9 N
|
| 1 mm | Stal (~0.2) |
6.25 kg / 13.78 LBS
6250.0 g / 61.3 N
|
| 2 mm | Stal (~0.2) |
5.39 kg / 11.87 LBS
5386.0 g / 52.8 N
|
| 3 mm | Stal (~0.2) |
4.58 kg / 10.10 LBS
4580.0 g / 44.9 N
|
| 5 mm | Stal (~0.2) |
3.22 kg / 7.10 LBS
3220.0 g / 31.6 N
|
| 10 mm | Stal (~0.2) |
1.28 kg / 2.82 LBS
1280.0 g / 12.6 N
|
| 15 mm | Stal (~0.2) |
0.54 kg / 1.19 LBS
540.0 g / 5.3 N
|
| 20 mm | Stal (~0.2) |
0.25 kg / 0.55 LBS
248.0 g / 2.4 N
|
| 30 mm | Stal (~0.2) |
0.06 kg / 0.14 LBS
64.0 g / 0.6 N
|
| 50 mm | Stal (~0.2) |
0.01 kg / 0.02 LBS
8.0 g / 0.1 N
|
Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 60x20x10 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
10.68 kg / 23.55 LBS
10683.0 g / 104.8 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
7.12 kg / 15.70 LBS
7122.0 g / 69.9 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
3.56 kg / 7.85 LBS
3561.0 g / 34.9 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
17.81 kg / 39.25 LBS
17805.0 g / 174.7 N
|
Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 60x20x10 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
1.78 kg / 3.93 LBS
1780.5 g / 17.5 N
|
| 1 mm |
|
4.45 kg / 9.81 LBS
4451.3 g / 43.7 N
|
| 2 mm |
|
8.90 kg / 19.63 LBS
8902.5 g / 87.3 N
|
| 3 mm |
|
13.35 kg / 29.44 LBS
13353.8 g / 131.0 N
|
| 5 mm |
|
22.26 kg / 49.07 LBS
22256.3 g / 218.3 N
|
| 10 mm |
|
35.61 kg / 78.51 LBS
35610.0 g / 349.3 N
|
| 11 mm |
|
35.61 kg / 78.51 LBS
35610.0 g / 349.3 N
|
| 12 mm |
|
35.61 kg / 78.51 LBS
35610.0 g / 349.3 N
|
Table 5: Thermal stability (stability) - resistance threshold
MPL 60x20x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
35.61 kg / 78.51 LBS
35610.0 g / 349.3 N
|
OK |
| 40 °C | -2.2% |
34.83 kg / 76.78 LBS
34826.6 g / 341.6 N
|
OK |
| 60 °C | -4.4% |
34.04 kg / 75.05 LBS
34043.2 g / 334.0 N
|
|
| 80 °C | -6.6% |
33.26 kg / 73.33 LBS
33259.7 g / 326.3 N
|
|
| 100 °C | -28.8% |
25.35 kg / 55.90 LBS
25354.3 g / 248.7 N
|
Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 60x20x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Force (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
80.35 kg / 177.15 LBS
4 692 Gs
|
12.05 kg / 26.57 LBS
12053 g / 118.2 N
|
N/A |
| 1 mm |
75.49 kg / 166.43 LBS
6 389 Gs
|
11.32 kg / 24.96 LBS
11324 g / 111.1 N
|
67.94 kg / 149.79 LBS
~0 Gs
|
| 2 mm |
70.51 kg / 155.45 LBS
6 174 Gs
|
10.58 kg / 23.32 LBS
10577 g / 103.8 N
|
63.46 kg / 139.90 LBS
~0 Gs
|
| 3 mm |
65.58 kg / 144.58 LBS
5 955 Gs
|
9.84 kg / 21.69 LBS
9837 g / 96.5 N
|
59.02 kg / 130.12 LBS
~0 Gs
|
| 5 mm |
56.11 kg / 123.71 LBS
5 508 Gs
|
8.42 kg / 18.56 LBS
8417 g / 82.6 N
|
50.50 kg / 111.34 LBS
~0 Gs
|
| 10 mm |
36.34 kg / 80.11 LBS
4 432 Gs
|
5.45 kg / 12.02 LBS
5450 g / 53.5 N
|
32.70 kg / 72.10 LBS
~0 Gs
|
| 20 mm |
14.45 kg / 31.85 LBS
2 795 Gs
|
2.17 kg / 4.78 LBS
2167 g / 21.3 N
|
13.00 kg / 28.66 LBS
~0 Gs
|
| 50 mm |
1.38 kg / 3.05 LBS
865 Gs
|
0.21 kg / 0.46 LBS
208 g / 2.0 N
|
1.25 kg / 2.75 LBS
~0 Gs
|
| 60 mm |
0.73 kg / 1.60 LBS
627 Gs
|
0.11 kg / 0.24 LBS
109 g / 1.1 N
|
0.66 kg / 1.44 LBS
~0 Gs
|
| 70 mm |
0.40 kg / 0.89 LBS
467 Gs
|
0.06 kg / 0.13 LBS
60 g / 0.6 N
|
0.36 kg / 0.80 LBS
~0 Gs
|
| 80 mm |
0.23 kg / 0.51 LBS
355 Gs
|
0.03 kg / 0.08 LBS
35 g / 0.3 N
|
0.21 kg / 0.46 LBS
~0 Gs
|
| 90 mm |
0.14 kg / 0.31 LBS
275 Gs
|
0.02 kg / 0.05 LBS
21 g / 0.2 N
|
0.13 kg / 0.28 LBS
~0 Gs
|
| 100 mm |
0.09 kg / 0.19 LBS
217 Gs
|
0.01 kg / 0.03 LBS
13 g / 0.1 N
|
0.08 kg / 0.17 LBS
~0 Gs
|
Table 7: Hazards (electronics) - warnings
MPL 60x20x10 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 16.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 13.0 cm |
| Timepiece | 20 Gs (2.0 mT) | 10.0 cm |
| Mobile device | 40 Gs (4.0 mT) | 8.0 cm |
| Remote | 50 Gs (5.0 mT) | 7.0 cm |
| Payment card | 400 Gs (40.0 mT) | 3.0 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 2.5 cm |
Table 8: Dynamics (kinetic energy) - collision effects
MPL 60x20x10 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
22.20 km/h
(6.17 m/s)
|
1.71 J | |
| 30 mm |
34.94 km/h
(9.71 m/s)
|
4.24 J | |
| 50 mm |
44.89 km/h
(12.47 m/s)
|
7.00 J | |
| 100 mm |
63.44 km/h
(17.62 m/s)
|
13.97 J |
Table 9: Corrosion resistance
MPL 60x20x10 / 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)
MPL 60x20x10 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 37 480 Mx | 374.8 µWb |
| Pc Coefficient | 0.35 | Low (Flat) |
Table 11: Underwater work (magnet fishing)
MPL 60x20x10 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 35.61 kg | Standard |
| Water (riverbed) |
40.77 kg
(+5.16 kg buoyancy gain)
|
+14.5% |
1. Wall mount (shear)
*Note: On a vertical wall, the magnet holds merely a fraction of its perpendicular strength.
2. Steel saturation
*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.
3. Power loss vs temp
*For standard magnets, the critical limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.35
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Strengths as well as weaknesses of neodymium magnets.
Pros
- They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
- Magnets effectively resist against demagnetization caused by ambient magnetic noise,
- In other words, due to the smooth surface of nickel, the element looks attractive,
- The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of exact shaping and adapting to atypical needs,
- Huge importance in advanced technology sectors – they are utilized in mass storage devices, drive modules, advanced medical instruments, also technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in compact constructions
Cons
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
- 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Limited possibility of producing threads in the magnet and complicated shapes - recommended is a housing - magnet mounting.
- Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that small components of these products can be problematic in diagnostics medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Pull force analysis
Maximum lifting force for a neodymium magnet – what it depends on?
- with the application of a yoke made of special test steel, ensuring maximum field concentration
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by even structure
- with total lack of distance (without coatings)
- during pulling in a direction vertical to the mounting surface
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Steel grade – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
- Surface condition – ground elements ensure maximum contact, which improves force. Uneven metal weaken the grip.
- Thermal environment – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the holding force.
H&S for magnets
Danger to the youngest
Only for adults. Small elements pose a choking risk, causing serious injuries. Store out of reach of children and animals.
Finger safety
Pinching hazard: The pulling power is so great that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.
Medical interference
For implant holders: Powerful magnets affect medical devices. Keep minimum 30 cm distance or request help to work with the magnets.
Skin irritation risks
Studies show that nickel (the usual finish) is a common allergen. If you have an allergy, refrain from direct skin contact or opt for coated magnets.
Heat sensitivity
Keep cool. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, look for HT versions (H, SH, UH).
Magnetic media
Device Safety: Strong magnets can ruin data carriers and sensitive devices (heart implants, medical aids, timepieces).
Keep away from electronics
A powerful magnetic field interferes with the functioning of compasses in smartphones and navigation systems. Do not bring magnets near a device to avoid breaking the sensors.
Fire warning
Dust produced during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Do not underestimate power
Exercise caution. Rare earth magnets act from a long distance and connect with massive power, often quicker than you can move away.
Shattering risk
Neodymium magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets will cause them cracking into shards.
