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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

bulk discounts:

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Technical specification - 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

Technical simulation of the assembly - technical parameters

These information constitute the outcome of a mathematical calculation. Values rely on algorithms for the material Nd2Fe14B. Real-world parameters may differ. Treat these data as a reference point for designers.

Table 1: Static force (pull vs distance) - characteristics
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 lbs
1380.0 g / 13.5 N
low risk
1 mm 3805 Gs
380.5 mT
0.69 kg / 1.52 lbs
688.0 g / 6.7 N
low risk
2 mm 2530 Gs
253.0 mT
0.30 kg / 0.67 lbs
304.3 g / 3.0 N
low risk
3 mm 1671 Gs
167.1 mT
0.13 kg / 0.29 lbs
132.7 g / 1.3 N
low risk
5 mm 784 Gs
78.4 mT
0.03 kg / 0.06 lbs
29.2 g / 0.3 N
low risk
10 mm 192 Gs
19.2 mT
0.00 kg / 0.00 lbs
1.8 g / 0.0 N
low risk
15 mm 73 Gs
7.3 mT
0.00 kg / 0.00 lbs
0.3 g / 0.0 N
low risk
20 mm 35 Gs
3.5 mT
0.00 kg / 0.00 lbs
0.1 g / 0.0 N
low risk
30 mm 12 Gs
1.2 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk
50 mm 3 Gs
0.3 mT
0.00 kg / 0.00 lbs
0.0 g / 0.0 N
low risk

Table 2: Vertical force (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 lbs
276.0 g / 2.7 N
1 mm Stal (~0.2) 0.14 kg / 0.30 lbs
138.0 g / 1.4 N
2 mm Stal (~0.2) 0.06 kg / 0.13 lbs
60.0 g / 0.6 N
3 mm Stal (~0.2) 0.03 kg / 0.06 lbs
26.0 g / 0.3 N
5 mm Stal (~0.2) 0.01 kg / 0.01 lbs
6.0 g / 0.1 N
10 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 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 (sliding) - vertical pull
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 lbs
414.0 g / 4.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.28 kg / 0.61 lbs
276.0 g / 2.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.14 kg / 0.30 lbs
138.0 g / 1.4 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.69 kg / 1.52 lbs
690.0 g / 6.8 N

Table 4: Steel thickness (substrate influence) - 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 lbs
138.0 g / 1.4 N
1 mm
25%
0.35 kg / 0.76 lbs
345.0 g / 3.4 N
2 mm
50%
0.69 kg / 1.52 lbs
690.0 g / 6.8 N
3 mm
75%
1.04 kg / 2.28 lbs
1035.0 g / 10.2 N
5 mm
100%
1.38 kg / 3.04 lbs
1380.0 g / 13.5 N
10 mm
100%
1.38 kg / 3.04 lbs
1380.0 g / 13.5 N
11 mm
100%
1.38 kg / 3.04 lbs
1380.0 g / 13.5 N
12 mm
100%
1.38 kg / 3.04 lbs
1380.0 g / 13.5 N

Table 5: Thermal resistance (stability) - thermal limit
MPL 6x6x6 / N38

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

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 6x6x6 / N38

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

Table 7: Protective zones (implants) - 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
Timepiece 20 Gs (2.0 mT) 2.5 cm
Mobile device 40 Gs (4.0 mT) 2.0 cm
Car key 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: Coating parameters (durability)
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 (Pc)
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%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
1. Sliding resistance

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) significantly limits the holding force.

3. Temperature resistance

*For N38 material, the safety limit 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
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%
Environmental data
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
Measurement Calculator
Force (pull)

Magnetic Induction

Other proposals

Model MPL 6x6x6 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. This rectangular 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. Watch your fingers! Magnets with a force of 1.38 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
They constitute a key element in the production of generators and material handling systems. They work great as fasteners under tiles, wood, or glass. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.
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. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 6x6x6 / N38 model is magnetized axially (dimension 6 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 6 mm (length), 6 mm (width), and 6 mm (thickness). It is a magnetic block with dimensions 6x6x6 mm and a self-weight of 1.62 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Besides their durability, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
  • Neodymium magnets remain highly resistant to loss of magnetic properties caused by external magnetic fields,
  • The use of an refined layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • Magnetic induction on the top side of the magnet is maximum,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Thanks to flexibility in shaping and the capacity to adapt to unusual requirements,
  • Fundamental importance in advanced technology sectors – they serve a role in HDD drives, drive modules, advanced medical instruments, also multitasking production systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

What to avoid - cons of neodymium magnets and ways of using them
  • Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
  • Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We suggest cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complex shapes.
  • Health risk resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. Additionally, small components of these products can be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Optimal lifting capacity of a neodymium magnetwhat affects it?

Breakaway force is the result of a measurement for ideal contact conditions, taking into account:
  • with the application of a yoke made of special test steel, ensuring maximum field concentration
  • whose transverse dimension reaches at least 10 mm
  • with an ground contact surface
  • with total lack of distance (without paint)
  • under vertical force direction (90-degree angle)
  • at room temperature

Determinants of practical lifting force of a magnet

It is worth knowing that the working load will differ subject to elements below, in order of importance:
  • Air gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is pure iron steel. Hardened steels may have worse magnetic properties.
  • Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Thermal factor – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Safe handling of neodymium magnets
Threat to navigation

Navigation devices and smartphones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the sensors in your phone.

Do not drill into magnets

Powder created during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Sensitization to coating

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, cease working with magnets and wear gloves.

Magnet fragility

NdFeB magnets are ceramic materials, meaning they are very brittle. Collision of two magnets leads to them shattering into small pieces.

Life threat

Patients with a heart stimulator must maintain an absolute distance from magnets. The magnetism can stop the operation of the implant.

Maximum temperature

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.

Choking Hazard

Neodymium magnets are not toys. Swallowing multiple magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates urgent medical intervention.

Cards and drives

Very strong magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

Bone fractures

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

Respect the power

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Important! More info about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98