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
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Technical specification 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 analysis of the assembly - technical parameters
Presented data constitute the result of a physical analysis. Values are based on models for the material Nd2Fe14B. Real-world parameters might slightly differ from theoretical values. Treat these data as a supplementary guide when designing systems.
Table 1: Static pull force (pull vs distance) - characteristics
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
|
crushing |
| 1 mm |
2731 Gs
273.1 mT
|
13.66 kg / 30.11 LBS
13658.3 g / 134.0 N
|
crushing |
| 2 mm |
2302 Gs
230.2 mT
|
9.70 kg / 21.38 LBS
9698.4 g / 95.1 N
|
strong |
| 3 mm |
1912 Gs
191.2 mT
|
6.70 kg / 14.76 LBS
6696.5 g / 65.7 N
|
strong |
| 5 mm |
1317 Gs
131.7 mT
|
3.18 kg / 7.00 LBS
3176.9 g / 31.2 N
|
strong |
| 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 capacity (vertical surface)
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) - vertical pull
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: Steel thickness (substrate influence) - 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 stability (material behavior) - resistance threshold
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 range
MPL 60x10x5 / N38
| Gap (mm) | Attraction (kg/lbs) (N-S) | Sliding Force (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 (implants) - 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 |
| Timepiece | 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: Impact energy (kinetic energy) - 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: Surface protection spec
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: Electrical 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: Hydrostatics and buoyancy
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
*Note: On a vertical wall, the magnet retains only ~20% of its perpendicular strength.
2. Plate thickness effect
*Thin metal sheet (e.g. computer case) severely limits the holding force.
3. Heat tolerance
*For N38 material, the critical limit is 80°C.
4. Demagnetization curve and operating point (B-H)
chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.26
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% |
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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Advantages and disadvantages of rare earth magnets.
Advantages
- They do not lose magnetism, even during approximately ten years – the drop in power is only ~1% (theoretically),
- They feature excellent resistance to weakening of magnetic properties due to external magnetic sources,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to present itself better,
- The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Possibility of precise forming as well as adjusting to specific applications,
- Versatile presence in high-tech industry – they serve a role in magnetic memories, electromotive mechanisms, medical devices, also industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in miniature devices
Weaknesses
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. 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 advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- Limited possibility of making nuts in the magnet and complex forms - recommended is casing - mounting mechanism.
- Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these magnets are able to complicate diagnosis medical when they are in the body.
- Due to expensive raw materials, their price exceeds standard values,
Holding force characteristics
Highest magnetic holding force – what it depends on?
- using a sheet made of high-permeability steel, acting as a magnetic yoke
- whose transverse dimension equals approx. 10 mm
- characterized by lack of roughness
- under conditions of ideal adhesion (surface-to-surface)
- during detachment in a direction vertical to the plane
- at ambient temperature room level
Key elements affecting lifting force
- Gap between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Plate thickness – insufficiently thick sheet does not close the flux, causing part of the flux to be wasted into the air.
- Chemical composition of the base – mild steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
- Surface finish – ideal contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
- Temperature – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was assessed using a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
H&S for magnets
Permanent damage
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.
Danger to pacemakers
Warning for patients: Powerful magnets affect electronics. Keep minimum 30 cm distance or request help to work with the magnets.
Metal Allergy
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness appears, immediately stop working with magnets and wear gloves.
Adults only
These products are not toys. Accidental ingestion of several magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and requires urgent medical intervention.
Cards and drives
Very strong magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Pinching danger
Watch your fingers. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!
Beware of splinters
Despite metallic appearance, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Immense force
Handle with care. Rare earth magnets act from a distance and connect with huge force, often quicker than you can react.
Compass and GPS
An intense magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Maintain magnets close to a device to prevent breaking the sensors.
Mechanical processing
Dust produced during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
