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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Product card - 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 |
Engineering simulation of the magnet - data
These information are the outcome of a mathematical analysis. Values are based on models for the material Nd2Fe14B. Actual conditions may differ. Use these calculations as a supplementary guide when designing systems.
Table 1: Static force (pull vs distance) - power drop
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
|
strong |
| 15 mm |
907 Gs
90.7 mT
|
2.70 kg / 5.95 pounds
2697.7 g / 26.5 N
|
strong |
| 20 mm |
615 Gs
61.5 mT
|
1.24 kg / 2.73 pounds
1239.2 g / 12.2 N
|
low risk |
| 30 mm |
314 Gs
31.4 mT
|
0.32 kg / 0.71 pounds
322.6 g / 3.2 N
|
low risk |
| 50 mm |
108 Gs
10.8 mT
|
0.04 kg / 0.09 pounds
38.6 g / 0.4 N
|
low risk |
Table 2: Slippage hold (vertical surface)
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: Wall mounting (shearing) - 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 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: Steel thickness (saturation) - power losses
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: Working in heat (material behavior) - 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 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: Magnet-Magnet interaction (attraction) - field collision
MPL 60x20x10 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Lateral Force (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: Protective zones (electronics) - precautionary measures
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 |
| Mechanical watch | 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: Collisions (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: 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: Electrical 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: Physics of underwater searching
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
*Caution: On a vertical surface, the magnet holds just approx. 20-30% of its perpendicular strength.
2. Plate thickness effect
*Thin steel (e.g. computer case) drastically reduces the holding force.
3. Temperature resistance
*For standard magnets, the max working temp 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.
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 |
Other products
Strengths as well as weaknesses of neodymium magnets.
Pros
- They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
- They retain their magnetic properties even under strong external field,
- In other words, due to the shiny surface of silver, the element looks attractive,
- They show high magnetic induction at the operating surface, which increases their power,
- 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...
- Possibility of exact modeling as well as adjusting to defined conditions,
- Key role in modern technologies – they serve a role in hard drives, drive modules, medical equipment, also modern systems.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Limitations
- To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 very resistant to heat
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- We suggest a housing - magnetic mount, due to difficulties in realizing threads inside the magnet and complex forms.
- Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- using a base made of mild steel, functioning as a magnetic yoke
- whose thickness is min. 10 mm
- characterized by smoothness
- without any insulating layer between the magnet and steel
- under vertical force vector (90-degree angle)
- in temp. approx. 20°C
Key elements affecting lifting force
- Clearance – existence of foreign body (paint, tape, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel attracts best. Higher carbon content lower magnetic permeability and lifting capacity.
- Smoothness – ideal contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
- Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
Safe handling of neodymium magnets
Medical implants
Individuals with a ICD have to keep an large gap from magnets. The magnetism can stop the functioning of the life-saving device.
Do not overheat magnets
Keep cool. Neodymium magnets are susceptible to temperature. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
Immense force
Use magnets consciously. Their huge power can shock even experienced users. Stay alert and do not underestimate their force.
Product not for children
Product intended for adults. Tiny parts can be swallowed, causing severe trauma. Store away from kids and pets.
Impact on smartphones
GPS units and mobile phones are extremely susceptible to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Data carriers
Powerful magnetic fields can erase data on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.
Nickel allergy
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and wear gloves.
Finger safety
Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!
Fragile material
Neodymium magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets will cause them cracking into shards.
Dust is flammable
Powder generated during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
