MPL 60x10x5 / N38 - lamellar magnet
lamellar magnet
Catalog no 020474
GTIN/EAN: 5906301811947
length
60 mm [±0,1 mm]
Width
10 mm [±0,1 mm]
Height
5 mm [±0,1 mm]
Weight
22.5 g
Magnetization Direction
↑ axial
Load capacity
18.16 kg / 178.10 N
Magnetic Induction
315.09 mT / 3151 Gs
Coating
[NiCuNi] Nickel
19.00 ZŁ with VAT / pcs + price for transport
15.45 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical of the product - MPL 60x10x5 / N38 - lamellar magnet
Specification / characteristics - MPL 60x10x5 / N38 - lamellar magnet
| properties | values |
|---|---|
| Cat. no. | 020474 |
| GTIN/EAN | 5906301811947 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| length | 60 mm [±0,1 mm] |
| Width | 10 mm [±0,1 mm] |
| Height | 5 mm [±0,1 mm] |
| Weight | 22.5 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 18.16 kg / 178.10 N |
| Magnetic Induction ~ ? | 315.09 mT / 3151 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 assembly - data
Presented values are the outcome of a engineering calculation. Results rely on algorithms for the material Nd2Fe14B. Operational conditions may differ from theoretical values. Treat these calculations as a preliminary roadmap when designing systems.
Table 1: Static force (force vs gap) - interaction chart
MPL 60x10x5 / N38
| Distance (mm) | Induction (Gauss) / mT | Pull Force (kg/lbs/g/N) | Risk Status |
|---|---|---|---|
| 0 mm |
3149 Gs
314.9 mT
|
18.16 kg / 40.04 LBS
18160.0 g / 178.1 N
|
critical level |
| 1 mm |
2731 Gs
273.1 mT
|
13.66 kg / 30.11 LBS
13658.3 g / 134.0 N
|
critical level |
| 2 mm |
2302 Gs
230.2 mT
|
9.70 kg / 21.38 LBS
9698.4 g / 95.1 N
|
medium risk |
| 3 mm |
1912 Gs
191.2 mT
|
6.70 kg / 14.76 LBS
6696.5 g / 65.7 N
|
medium risk |
| 5 mm |
1317 Gs
131.7 mT
|
3.18 kg / 7.00 LBS
3176.9 g / 31.2 N
|
medium risk |
| 10 mm |
598 Gs
59.8 mT
|
0.65 kg / 1.44 LBS
653.8 g / 6.4 N
|
safe |
| 15 mm |
330 Gs
33.0 mT
|
0.20 kg / 0.44 LBS
199.2 g / 2.0 N
|
safe |
| 20 mm |
205 Gs
20.5 mT
|
0.08 kg / 0.17 LBS
77.0 g / 0.8 N
|
safe |
| 30 mm |
96 Gs
9.6 mT
|
0.02 kg / 0.04 LBS
16.9 g / 0.2 N
|
safe |
| 50 mm |
31 Gs
3.1 mT
|
0.00 kg / 0.00 LBS
1.8 g / 0.0 N
|
safe |
Table 2: Shear force (wall)
MPL 60x10x5 / N38
| Distance (mm) | Friction coefficient | Pull Force (kg/lbs/g/N) |
|---|---|---|
| 0 mm | Stal (~0.2) |
3.63 kg / 8.01 LBS
3632.0 g / 35.6 N
|
| 1 mm | Stal (~0.2) |
2.73 kg / 6.02 LBS
2732.0 g / 26.8 N
|
| 2 mm | Stal (~0.2) |
1.94 kg / 4.28 LBS
1940.0 g / 19.0 N
|
| 3 mm | Stal (~0.2) |
1.34 kg / 2.95 LBS
1340.0 g / 13.1 N
|
| 5 mm | Stal (~0.2) |
0.64 kg / 1.40 LBS
636.0 g / 6.2 N
|
| 10 mm | Stal (~0.2) |
0.13 kg / 0.29 LBS
130.0 g / 1.3 N
|
| 15 mm | Stal (~0.2) |
0.04 kg / 0.09 LBS
40.0 g / 0.4 N
|
| 20 mm | Stal (~0.2) |
0.02 kg / 0.04 LBS
16.0 g / 0.2 N
|
| 30 mm | Stal (~0.2) |
0.00 kg / 0.01 LBS
4.0 g / 0.0 N
|
| 50 mm | Stal (~0.2) |
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
|
Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 60x10x5 / N38
| Surface type | Friction coefficient / % Mocy | Max load (kg/lbs/g/N) |
|---|---|---|
| Raw steel |
µ = 0.3
30% Nominalnej Siły
|
5.45 kg / 12.01 LBS
5448.0 g / 53.4 N
|
| Painted steel (standard) |
µ = 0.2
20% Nominalnej Siły
|
3.63 kg / 8.01 LBS
3632.0 g / 35.6 N
|
| Oily/slippery steel |
µ = 0.1
10% Nominalnej Siły
|
1.82 kg / 4.00 LBS
1816.0 g / 17.8 N
|
| Magnet with anti-slip rubber |
µ = 0.5
50% Nominalnej Siły
|
9.08 kg / 20.02 LBS
9080.0 g / 89.1 N
|
Table 4: Material efficiency (saturation) - power losses
MPL 60x10x5 / N38
| Steel thickness (mm) | % power | Real pull force (kg/lbs/g/N) |
|---|---|---|
| 0.5 mm |
|
0.91 kg / 2.00 LBS
908.0 g / 8.9 N
|
| 1 mm |
|
2.27 kg / 5.00 LBS
2270.0 g / 22.3 N
|
| 2 mm |
|
4.54 kg / 10.01 LBS
4540.0 g / 44.5 N
|
| 3 mm |
|
6.81 kg / 15.01 LBS
6810.0 g / 66.8 N
|
| 5 mm |
|
11.35 kg / 25.02 LBS
11350.0 g / 111.3 N
|
| 10 mm |
|
18.16 kg / 40.04 LBS
18160.0 g / 178.1 N
|
| 11 mm |
|
18.16 kg / 40.04 LBS
18160.0 g / 178.1 N
|
| 12 mm |
|
18.16 kg / 40.04 LBS
18160.0 g / 178.1 N
|
Table 5: Thermal resistance (stability) - power drop
MPL 60x10x5 / N38
| Ambient temp. (°C) | Power loss | Remaining pull (kg/lbs/g/N) | Status |
|---|---|---|---|
| 20 °C | 0.0% |
18.16 kg / 40.04 LBS
18160.0 g / 178.1 N
|
OK |
| 40 °C | -2.2% |
17.76 kg / 39.16 LBS
17760.5 g / 174.2 N
|
OK |
| 60 °C | -4.4% |
17.36 kg / 38.27 LBS
17361.0 g / 170.3 N
|
|
| 80 °C | -6.6% |
16.96 kg / 37.39 LBS
16961.4 g / 166.4 N
|
|
| 100 °C | -28.8% |
12.93 kg / 28.51 LBS
12929.9 g / 126.8 N
|
Table 6: Two magnets (repulsion) - field collision
MPL 60x10x5 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Shear Strength (kg/lbs/g/N) | Repulsion (kg/lbs) (N-N) |
|---|---|---|---|
| 0 mm |
36.69 kg / 80.89 LBS
4 464 Gs
|
5.50 kg / 12.13 LBS
5503 g / 54.0 N
|
N/A |
| 1 mm |
32.13 kg / 70.84 LBS
5 895 Gs
|
4.82 kg / 10.63 LBS
4820 g / 47.3 N
|
28.92 kg / 63.76 LBS
~0 Gs
|
| 2 mm |
27.59 kg / 60.83 LBS
5 463 Gs
|
4.14 kg / 9.13 LBS
4139 g / 40.6 N
|
24.83 kg / 54.75 LBS
~0 Gs
|
| 3 mm |
23.37 kg / 51.53 LBS
5 027 Gs
|
3.51 kg / 7.73 LBS
3506 g / 34.4 N
|
21.03 kg / 46.37 LBS
~0 Gs
|
| 5 mm |
16.31 kg / 35.97 LBS
4 200 Gs
|
2.45 kg / 5.39 LBS
2447 g / 24.0 N
|
14.68 kg / 32.37 LBS
~0 Gs
|
| 10 mm |
6.42 kg / 14.15 LBS
2 635 Gs
|
0.96 kg / 2.12 LBS
963 g / 9.4 N
|
5.78 kg / 12.74 LBS
~0 Gs
|
| 20 mm |
1.32 kg / 2.91 LBS
1 195 Gs
|
0.20 kg / 0.44 LBS
198 g / 1.9 N
|
1.19 kg / 2.62 LBS
~0 Gs
|
| 50 mm |
0.07 kg / 0.15 LBS
274 Gs
|
0.01 kg / 0.02 LBS
10 g / 0.1 N
|
0.06 kg / 0.14 LBS
~0 Gs
|
| 60 mm |
0.03 kg / 0.08 LBS
192 Gs
|
0.01 kg / 0.01 LBS
5 g / 0.1 N
|
0.03 kg / 0.07 LBS
~0 Gs
|
| 70 mm |
0.02 kg / 0.04 LBS
140 Gs
|
0.00 kg / 0.01 LBS
3 g / 0.0 N
|
0.02 kg / 0.04 LBS
~0 Gs
|
| 80 mm |
0.01 kg / 0.02 LBS
104 Gs
|
0.00 kg / 0.00 LBS
2 g / 0.0 N
|
0.01 kg / 0.02 LBS
~0 Gs
|
| 90 mm |
0.01 kg / 0.01 LBS
80 Gs
|
0.00 kg / 0.00 LBS
1 g / 0.0 N
|
0.00 kg / 0.00 LBS
~0 Gs
|
| 100 mm |
0.00 kg / 0.01 LBS
62 Gs
|
0.00 kg / 0.00 LBS
1 g / 0.0 N
|
0.00 kg / 0.00 LBS
~0 Gs
|
Table 7: Hazards (electronics) - warnings
MPL 60x10x5 / N38
| Object / Device | Limit (Gauss) / mT | Safe distance |
|---|---|---|
| Pacemaker | 5 Gs (0.5 mT) | 10.5 cm |
| Hearing aid | 10 Gs (1.0 mT) | 8.0 cm |
| Mechanical watch | 20 Gs (2.0 mT) | 6.0 cm |
| Mobile device | 40 Gs (4.0 mT) | 4.5 cm |
| Remote | 50 Gs (5.0 mT) | 4.5 cm |
| Payment card | 400 Gs (40.0 mT) | 1.5 cm |
| HDD hard drive | 600 Gs (60.0 mT) | 1.0 cm |
Table 8: Dynamics (cracking risk) - collision effects
MPL 60x10x5 / N38
| Start from (mm) | Speed (km/h) | Energy (J) | Predicted outcome |
|---|---|---|---|
| 10 mm |
29.29 km/h
(8.14 m/s)
|
0.74 J | |
| 30 mm |
49.65 km/h
(13.79 m/s)
|
2.14 J | |
| 50 mm |
64.07 km/h
(17.80 m/s)
|
3.56 J | |
| 100 mm |
90.60 km/h
(25.17 m/s)
|
7.13 J |
Table 9: Coating parameters (durability)
MPL 60x10x5 / 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 (Flux)
MPL 60x10x5 / N38
| Parameter | Value | SI Unit / Description |
|---|---|---|
| Magnetic Flux | 14 969 Mx | 149.7 µWb |
| Pc Coefficient | 0.26 | Low (Flat) |
Table 11: Underwater work (magnet fishing)
MPL 60x10x5 / N38
| Environment | Effective steel pull | Effect |
|---|---|---|
| Air (land) | 18.16 kg | Standard |
| Water (riverbed) |
20.79 kg
(+2.63 kg buoyancy gain)
|
+14.5% |
1. Vertical hold
*Caution: On a vertical wall, the magnet retains only approx. 20-30% of its perpendicular strength.
2. Plate thickness effect
*Thin metal sheet (e.g. computer 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) = 0.26
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.
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths and weaknesses of neodymium magnets.
Advantages
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- They possess excellent resistance to magnetism drop as a result of external magnetic sources,
- By covering with a smooth layer of nickel, the element presents an proper look,
- Magnets exhibit maximum magnetic induction on the working surface,
- 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 flexibility in forming and the ability to modify to individual projects,
- Wide application in innovative solutions – they are used in computer drives, electromotive mechanisms, diagnostic systems, also technologically advanced constructions.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Limitations
- To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its 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.
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in producing nuts and complex shapes in magnets, we recommend using casing - magnetic holder.
- Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, small elements of these magnets can be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Holding force characteristics
Detachment force of the magnet in optimal conditions – what affects it?
- with the use of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- possessing a massiveness of at least 10 mm to ensure full flux closure
- characterized by lack of roughness
- under conditions of no distance (metal-to-metal)
- under perpendicular application of breakaway force (90-degree angle)
- at room temperature
Magnet lifting force in use – key factors
- Distance (betwixt the magnet and the metal), as even a very small distance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Direction of force – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
- Plate thickness – too thin steel does not close the flux, causing part of the power to be escaped into the air.
- Steel grade – ideal substrate is high-permeability steel. Stainless steels may attract less.
- Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate decreases the holding force.
Safety rules for work with neodymium magnets
Impact on smartphones
Note: neodymium magnets produce a field that disrupts sensitive sensors. Keep a separation from your phone, device, and GPS.
Powerful field
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.
Safe distance
Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.
Allergy Warning
Some people suffer from a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Frequent touching can result in dermatitis. We recommend wear protective gloves.
Pacemakers
For implant holders: Powerful magnets disrupt electronics. Keep at least 30 cm distance or request help to handle the magnets.
Bone fractures
Pinching hazard: The pulling power is so immense that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.
Mechanical processing
Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.
Shattering risk
Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Heat sensitivity
Do not overheat. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Product not for children
NdFeB magnets are not intended for children. Swallowing several magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and necessitates immediate surgery.
