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MPL 6x6x6 / N38 - lamellar magnet

lamellar magnet

Catalog no 020175

GTIN/EAN: 5906301811817

5.00

length

6 mm [±0,1 mm]

Width

6 mm [±0,1 mm]

Height

6 mm [±0,1 mm]

Weight

1.62 g

Magnetization Direction

↑ axial

Load capacity

1.38 kg / 13.54 N

Magnetic Induction

539.50 mT / 5395 Gs

Coating

[NiCuNi] Nickel

0.898 with VAT / pcs + price for transport

0.730 ZŁ net + 23% VAT / pcs

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Product card - MPL 6x6x6 / N38 - lamellar magnet

Specification / characteristics - MPL 6x6x6 / N38 - lamellar magnet

properties
properties values
Cat. no. 020175
GTIN/EAN 5906301811817
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 6 mm [±0,1 mm]
Width 6 mm [±0,1 mm]
Height 6 mm [±0,1 mm]
Weight 1.62 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.38 kg / 13.54 N
Magnetic Induction ~ ? 539.50 mT / 5395 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 6x6x6 / N38 - lamellar magnet
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

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 - technical parameters

The following values represent the outcome of a physical calculation. Results rely on models for the class Nd2Fe14B. Actual parameters may differ. Please consider these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - power drop
MPL 6x6x6 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 5389 Gs
538.9 mT
1.38 kg / 3.04 pounds
1380.0 g / 13.5 N
safe
1 mm 3805 Gs
380.5 mT
0.69 kg / 1.52 pounds
688.0 g / 6.7 N
safe
2 mm 2530 Gs
253.0 mT
0.30 kg / 0.67 pounds
304.3 g / 3.0 N
safe
3 mm 1671 Gs
167.1 mT
0.13 kg / 0.29 pounds
132.7 g / 1.3 N
safe
5 mm 784 Gs
78.4 mT
0.03 kg / 0.06 pounds
29.2 g / 0.3 N
safe
10 mm 192 Gs
19.2 mT
0.00 kg / 0.00 pounds
1.8 g / 0.0 N
safe
15 mm 73 Gs
7.3 mT
0.00 kg / 0.00 pounds
0.3 g / 0.0 N
safe
20 mm 35 Gs
3.5 mT
0.00 kg / 0.00 pounds
0.1 g / 0.0 N
safe
30 mm 12 Gs
1.2 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe
50 mm 3 Gs
0.3 mT
0.00 kg / 0.00 pounds
0.0 g / 0.0 N
safe

Table 2: Slippage load (vertical surface)
MPL 6x6x6 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.28 kg / 0.61 pounds
276.0 g / 2.7 N
1 mm Stal (~0.2) 0.14 kg / 0.30 pounds
138.0 g / 1.4 N
2 mm Stal (~0.2) 0.06 kg / 0.13 pounds
60.0 g / 0.6 N
3 mm Stal (~0.2) 0.03 kg / 0.06 pounds
26.0 g / 0.3 N
5 mm Stal (~0.2) 0.01 kg / 0.01 pounds
6.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 pounds
0.0 g / 0.0 N

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 6x6x6 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.41 kg / 0.91 pounds
414.0 g / 4.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.28 kg / 0.61 pounds
276.0 g / 2.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.14 kg / 0.30 pounds
138.0 g / 1.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.69 kg / 1.52 pounds
690.0 g / 6.8 N

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 6x6x6 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.14 kg / 0.30 pounds
138.0 g / 1.4 N
1 mm
25%
0.35 kg / 0.76 pounds
345.0 g / 3.4 N
2 mm
50%
0.69 kg / 1.52 pounds
690.0 g / 6.8 N
3 mm
75%
1.04 kg / 2.28 pounds
1035.0 g / 10.2 N
5 mm
100%
1.38 kg / 3.04 pounds
1380.0 g / 13.5 N
10 mm
100%
1.38 kg / 3.04 pounds
1380.0 g / 13.5 N
11 mm
100%
1.38 kg / 3.04 pounds
1380.0 g / 13.5 N
12 mm
100%
1.38 kg / 3.04 pounds
1380.0 g / 13.5 N

Table 5: Working in heat (stability) - power drop
MPL 6x6x6 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.38 kg / 3.04 pounds
1380.0 g / 13.5 N
OK
40 °C -2.2% 1.35 kg / 2.98 pounds
1349.6 g / 13.2 N
OK
60 °C -4.4% 1.32 kg / 2.91 pounds
1319.3 g / 12.9 N
OK
80 °C -6.6% 1.29 kg / 2.84 pounds
1288.9 g / 12.6 N
100 °C -28.8% 0.98 kg / 2.17 pounds
982.6 g / 9.6 N

Table 6: Two magnets (attraction) - field range
MPL 6x6x6 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 6.44 kg / 14.21 pounds
5 949 Gs
0.97 kg / 2.13 pounds
967 g / 9.5 N
N/A
1 mm 4.66 kg / 10.28 pounds
9 167 Gs
0.70 kg / 1.54 pounds
699 g / 6.9 N
4.20 kg / 9.25 pounds
~0 Gs
2 mm 3.21 kg / 7.08 pounds
7 610 Gs
0.48 kg / 1.06 pounds
482 g / 4.7 N
2.89 kg / 6.38 pounds
~0 Gs
3 mm 2.15 kg / 4.74 pounds
6 228 Gs
0.32 kg / 0.71 pounds
323 g / 3.2 N
1.94 kg / 4.27 pounds
~0 Gs
5 mm 0.94 kg / 2.06 pounds
4 107 Gs
0.14 kg / 0.31 pounds
140 g / 1.4 N
0.84 kg / 1.86 pounds
~0 Gs
10 mm 0.14 kg / 0.30 pounds
1 568 Gs
0.02 kg / 0.05 pounds
20 g / 0.2 N
0.12 kg / 0.27 pounds
~0 Gs
20 mm 0.01 kg / 0.02 pounds
384 Gs
0.00 kg / 0.00 pounds
1 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
50 mm 0.00 kg / 0.00 pounds
39 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
60 mm 0.00 kg / 0.00 pounds
24 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
70 mm 0.00 kg / 0.00 pounds
16 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
80 mm 0.00 kg / 0.00 pounds
11 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
90 mm 0.00 kg / 0.00 pounds
8 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs
100 mm 0.00 kg / 0.00 pounds
6 Gs
0.00 kg / 0.00 pounds
0 g / 0.0 N
0.00 kg / 0.00 pounds
~0 Gs

Table 7: Protective zones (electronics) - warnings
MPL 6x6x6 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 4.5 cm
Hearing aid 10 Gs (1.0 mT) 3.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 2.0 cm
Remote 50 Gs (5.0 mT) 2.0 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm

Table 8: Dynamics (cracking risk) - warning
MPL 6x6x6 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 29.46 km/h
(8.18 m/s)
0.05 J
30 mm 50.98 km/h
(14.16 m/s)
0.16 J
50 mm 65.82 km/h
(18.28 m/s)
0.27 J
100 mm 93.08 km/h
(25.86 m/s)
0.54 J

Table 9: Corrosion resistance
MPL 6x6x6 / 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 6x6x6 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 982 Mx 19.8 µWb
Pc Coefficient 0.84 High (Stable)

Table 11: Submerged application
MPL 6x6x6 / N38

Environment Effective steel pull Effect
Air (land) 1.38 kg Standard
Water (riverbed) 1.58 kg
(+0.20 kg buoyancy gain)
+14.5%
Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Shear force

*Warning: On a vertical wall, the magnet retains merely approx. 20-30% of its max power.

2. Steel saturation

*Thin metal sheet (e.g. computer case) drastically weakens the holding force.

3. Power loss vs temp

*For N38 grade, the max working temp is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.84

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.

Technical and environmental data
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
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 020175-2026
Magnet Unit Converter
Force (pull)

Magnetic Induction

See more products

This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 6x6x6 mm and a weight of 1.62 g, guarantees premium class connection. This magnetic block with a force of 13.54 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. To separate the MPL 6x6x6 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 6x6x6 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 1.38 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.
Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 6x6x6 mm, which, at a weight of 1.62 g, makes it an element with impressive energy density. The key parameter here is the holding force amounting to approximately 1.38 kg (force ~13.54 N), which, with such a flat shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of rare earth magnets.

Advantages

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:
  • Their power is durable, and after approximately ten years it drops only by ~1% (according to research),
  • Magnets effectively protect themselves against loss of magnetization caused by external fields,
  • In other words, due to the glossy layer of silver, the element gains visual value,
  • Neodymium magnets ensure maximum magnetic induction on a contact point, which allows for strong attraction,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of accurate machining as well as optimizing to individual requirements,
  • Fundamental importance in future technologies – they find application in hard drives, electromotive mechanisms, advanced medical instruments, also multitasking production systems.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Cons

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
  • We warn that neodymium magnets can lose 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 while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in creating nuts and complicated forms in magnets, we propose using a housing - magnetic holder.
  • Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum lifting capacity of the magnetwhat contributes to it?

The declared magnet strength represents the peak performance, measured under laboratory conditions, specifically:
  • with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
  • possessing a thickness of min. 10 mm to avoid saturation
  • characterized by smoothness
  • with zero gap (no coatings)
  • under vertical force vector (90-degree angle)
  • at room temperature

Lifting capacity in real conditions – factors

Effective lifting capacity is affected by working environment parameters, including (from most important):
  • Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Plate thickness – too thin plate does not accept the full field, causing part of the flux to be escaped into the air.
  • Chemical composition of the base – mild steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
  • Surface finish – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however 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 reduces the lifting capacity.

Precautions when working with NdFeB magnets
Cards and drives

Very strong magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Stay away of at least 10 cm.

This is not a toy

These products are not suitable for play. Accidental ingestion of multiple magnets can lead to them connecting inside the digestive tract, which poses a direct threat to life and necessitates urgent medical intervention.

Bone fractures

Risk of injury: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.

Do not drill into magnets

Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Conscious usage

Use magnets with awareness. Their immense force can surprise even professionals. Be vigilant and respect their force.

Heat warning

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.

Fragile material

Beware of splinters. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Allergic reactions

It is widely known that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and choose coated magnets.

Magnetic interference

An intense magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Do not bring magnets near a device to avoid damaging the sensors.

Danger to pacemakers

For implant holders: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Caution! More info about risks in the article: Safety of working with magnets.