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
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Technical - 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 modeling of the product - report
These values are the result of a physical calculation. Results were calculated on algorithms for the material Nd2Fe14B. Operational conditions may differ from theoretical values. Use these calculations as a supplementary guide when designing systems.
Table 1: Static pull force (force vs gap) - interaction chart
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 pounds
35610.0 g / 349.3 N
|
dangerous! |
| 1 mm |
3087 Gs
308.7 mT
|
31.25 kg / 68.89 pounds
31248.2 g / 306.5 N
|
dangerous! |
| 2 mm |
2866 Gs
286.6 mT
|
26.93 kg / 59.37 pounds
26929.3 g / 264.2 N
|
dangerous! |
| 3 mm |
2643 Gs
264.3 mT
|
22.90 kg / 50.48 pounds
22895.5 g / 224.6 N
|
dangerous! |
| 5 mm |
2216 Gs
221.6 mT
|
16.10 kg / 35.50 pounds
16103.3 g / 158.0 N
|
dangerous! |
| 10 mm |
1397 Gs
139.7 mT
|
6.40 kg / 14.11 pounds
6402.3 g / 62.8 N
|
medium risk |
| 15 mm |
907 Gs
90.7 mT
|
2.70 kg / 5.95 pounds
2697.7 g / 26.5 N
|
medium risk |
| 20 mm |
615 Gs
61.5 mT
|
1.24 kg / 2.73 pounds
1239.2 g / 12.2 N
|
weak grip |
| 30 mm |
314 Gs
31.4 mT
|
0.32 kg / 0.71 pounds
322.6 g / 3.2 N
|
weak grip |
| 50 mm |
108 Gs
10.8 mT
|
0.04 kg / 0.09 pounds
38.6 g / 0.4 N
|
weak grip |
Table 2: Slippage capacity (wall)
MPL 60x20x10 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
7.12 kg / 15.70 pounds
7122.0 g / 69.9 N
|
| 1 mm | Stal (~0.2) |
6.25 kg / 13.78 pounds
6250.0 g / 61.3 N
|
| 2 mm | Stal (~0.2) |
5.39 kg / 11.87 pounds
5386.0 g / 52.8 N
|
| 3 mm | Stal (~0.2) |
4.58 kg / 10.10 pounds
4580.0 g / 44.9 N
|
| 5 mm | Stal (~0.2) |
3.22 kg / 7.10 pounds
3220.0 g / 31.6 N
|
| 10 mm | Stal (~0.2) |
1.28 kg / 2.82 pounds
1280.0 g / 12.6 N
|
| 15 mm | Stal (~0.2) |
0.54 kg / 1.19 pounds
540.0 g / 5.3 N
|
| 20 mm | Stal (~0.2) |
0.25 kg / 0.55 pounds
248.0 g / 2.4 N
|
| 30 mm | Stal (~0.2) |
0.06 kg / 0.14 pounds
64.0 g / 0.6 N
|
| 50 mm | Stal (~0.2) |
0.01 kg / 0.02 pounds
8.0 g / 0.1 N
|
Table 3: Vertical assembly (sliding) - vertical pull
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 pounds
10683.0 g / 104.8 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
7.12 kg / 15.70 pounds
7122.0 g / 69.9 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
3.56 kg / 7.85 pounds
3561.0 g / 34.9 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
17.81 kg / 39.25 pounds
17805.0 g / 174.7 N
|
Table 4: Material efficiency (saturation) - 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 pounds
1780.5 g / 17.5 N
|
| 1 mm |
|
4.45 kg / 9.81 pounds
4451.3 g / 43.7 N
|
| 2 mm |
|
8.90 kg / 19.63 pounds
8902.5 g / 87.3 N
|
| 3 mm |
|
13.35 kg / 29.44 pounds
13353.8 g / 131.0 N
|
| 5 mm |
|
22.26 kg / 49.07 pounds
22256.3 g / 218.3 N
|
| 10 mm |
|
35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
|
| 11 mm |
|
35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
|
| 12 mm |
|
35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
|
Table 5: Thermal resistance (stability) - power drop
MPL 60x20x10 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
35.61 kg / 78.51 pounds
35610.0 g / 349.3 N
|
OK |
| 40 °C | -2.2% |
34.83 kg / 76.78 pounds
34826.6 g / 341.6 N
|
OK |
| 60 °C | -4.4% |
34.04 kg / 75.05 pounds
34043.2 g / 334.0 N
|
|
| 80 °C | -6.6% |
33.26 kg / 73.33 pounds
33259.7 g / 326.3 N
|
|
| 100 °C | -28.8% |
25.35 kg / 55.90 pounds
25354.3 g / 248.7 N
|
Table 6: Two magnets (attraction) - forces in the system
MPL 60x20x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
80.35 kg / 177.15 pounds
4 692 Gs
|
12.05 kg / 26.57 pounds
12053 g / 118.2 N
|
N/A |
| 1 mm |
75.49 kg / 166.43 pounds
6 389 Gs
|
11.32 kg / 24.96 pounds
11324 g / 111.1 N
|
67.94 kg / 149.79 pounds
~0 Gs
|
| 2 mm |
70.51 kg / 155.45 pounds
6 174 Gs
|
10.58 kg / 23.32 pounds
10577 g / 103.8 N
|
63.46 kg / 139.90 pounds
~0 Gs
|
| 3 mm |
65.58 kg / 144.58 pounds
5 955 Gs
|
9.84 kg / 21.69 pounds
9837 g / 96.5 N
|
59.02 kg / 130.12 pounds
~0 Gs
|
| 5 mm |
56.11 kg / 123.71 pounds
5 508 Gs
|
8.42 kg / 18.56 pounds
8417 g / 82.6 N
|
50.50 kg / 111.34 pounds
~0 Gs
|
| 10 mm |
36.34 kg / 80.11 pounds
4 432 Gs
|
5.45 kg / 12.02 pounds
5450 g / 53.5 N
|
32.70 kg / 72.10 pounds
~0 Gs
|
| 20 mm |
14.45 kg / 31.85 pounds
2 795 Gs
|
2.17 kg / 4.78 pounds
2167 g / 21.3 N
|
13.00 kg / 28.66 pounds
~0 Gs
|
| 50 mm |
1.38 kg / 3.05 pounds
865 Gs
|
0.21 kg / 0.46 pounds
208 g / 2.0 N
|
1.25 kg / 2.75 pounds
~0 Gs
|
| 60 mm |
0.73 kg / 1.60 pounds
627 Gs
|
0.11 kg / 0.24 pounds
109 g / 1.1 N
|
0.66 kg / 1.44 pounds
~0 Gs
|
| 70 mm |
0.40 kg / 0.89 pounds
467 Gs
|
0.06 kg / 0.13 pounds
60 g / 0.6 N
|
0.36 kg / 0.80 pounds
~0 Gs
|
| 80 mm |
0.23 kg / 0.51 pounds
355 Gs
|
0.03 kg / 0.08 pounds
35 g / 0.3 N
|
0.21 kg / 0.46 pounds
~0 Gs
|
| 90 mm |
0.14 kg / 0.31 pounds
275 Gs
|
0.02 kg / 0.05 pounds
21 g / 0.2 N
|
0.13 kg / 0.28 pounds
~0 Gs
|
| 100 mm |
0.09 kg / 0.19 pounds
217 Gs
|
0.01 kg / 0.03 pounds
13 g / 0.1 N
|
0.08 kg / 0.17 pounds
~0 Gs
|
Table 7: Safety (HSE) (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 |
| Car key | 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: Impact energy (cracking risk) - warning
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: Anti-corrosion coating durability
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: Electrical data (Flux)
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. Vertical hold
*Note: On a vertical wall, the magnet holds only approx. 20-30% of its nominal pull.
2. Efficiency vs thickness
*Thin metal sheet (e.g. 0.5mm PC case) significantly reduces 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) = 0.35
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.
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 |
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Pros as well as cons of neodymium magnets.
Benefits
- Their magnetic field is durable, and after approximately 10 years it drops only by ~1% (theoretically),
- Magnets perfectly defend themselves against demagnetization caused by foreign field sources,
- Thanks to the reflective finish, the layer of nickel, gold, or silver-plated gives an clean appearance,
- Magnetic induction on the working layer of the magnet turns out to be maximum,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to modularity in shaping and the capacity to customize to complex applications,
- Universal use in modern technologies – they serve a role in magnetic memories, electric drive systems, precision medical tools, also industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Weaknesses
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Due to limitations in realizing nuts and complex shapes in magnets, we propose using cover - magnetic mechanism.
- Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
- With large orders the cost of neodymium magnets is economically unviable,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what it depends on?
- with the application of a yoke made of special test steel, ensuring maximum field concentration
- with a cross-section no less than 10 mm
- characterized by smoothness
- without the slightest insulating layer between the magnet and steel
- under perpendicular application of breakaway force (90-degree angle)
- in neutral thermal conditions
What influences lifting capacity in practice
- Distance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Load vector – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – too thin sheet does not close the flux, causing part of the power to be escaped to the other side.
- Metal type – not every steel attracts identically. High carbon content weaken the attraction effect.
- Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Safety rules for work with NdFeB magnets
Safe operation
Handle magnets with awareness. Their huge power can surprise even experienced users. Stay alert and respect their force.
Allergy Warning
A percentage of the population have a hypersensitivity to Ni, which is the common plating for neodymium magnets. Prolonged contact might lead to an allergic reaction. We suggest wear protective gloves.
Protect data
Intense magnetic fields can erase data on payment cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Compass and GPS
Navigation devices and smartphones are highly susceptible to magnetism. Direct contact with a strong magnet can decalibrate the sensors in your phone.
Material brittleness
Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
Dust is flammable
Fire warning: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.
Do not give to children
Adult use only. Tiny parts can be swallowed, leading to severe trauma. Store out of reach of children and animals.
Demagnetization risk
Do not overheat. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).
Warning for heart patients
For implant holders: Powerful magnets affect electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
Bone fractures
Danger of trauma: The pulling power is so great that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.
