Neodymium magnets: power you're looking for

Looking for massive power in small size? We have in stock wide selection of various shapes and sizes. They are ideal for domestic applications, garage and model making. Check our offer with fast shipping.

discover full offer

Magnet fishing: solid F200/F400 sets

Discover your passion involving underwater treasure hunting! Our specialized grips (F200, F400) provide grip certainty and immense power. Solid, corrosion-resistant housing and reinforced ropes will perform in any water.

choose your water magnet

Magnetic mounting systems

Proven solutions for mounting without drilling. Threaded mounts (M8, M10, M12) guarantee instant organization of work on production halls. They are indispensable mounting lamps, sensors and banners.

see industrial applications

🚀 Lightning processing: orders by 14:00 shipped within 24h!

Dhit sp. z o.o.
Product available Ships today (order by 14:00)

MPL 20x10x1 / N38 - lamellar magnet

lamellar magnet

Catalog no 020126

GTIN/EAN: 5906301811329

5.00

length

20 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

1.5 g

Magnetization Direction

↑ axial

Load capacity

0.56 kg / 5.46 N

Magnetic Induction

87.15 mT / 871 Gs

Coating

[NiCuNi] Nickel

0.996 with VAT / pcs + price for transport

0.810 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.810 ZŁ
0.996 ZŁ
price from 800 pcs
0.761 ZŁ
0.937 ZŁ
price from 3100 pcs
0.713 ZŁ
0.877 ZŁ
Not sure about your choice?

Pick up the phone and ask +48 22 499 98 98 if you prefer drop us a message via request form through our site.
Specifications along with shape of neodymium magnets can be analyzed with our our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical data - MPL 20x10x1 / N38 - lamellar magnet

Specification / characteristics - MPL 20x10x1 / N38 - lamellar magnet

properties
properties values
Cat. no. 020126
GTIN/EAN 5906301811329
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 20 mm [±0,1 mm]
Width 10 mm [±0,1 mm]
Height 1 mm [±0,1 mm]
Weight 1.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.56 kg / 5.46 N
Magnetic Induction ~ ? 87.15 mT / 871 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x10x1 / 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 analysis of the assembly - technical parameters

These values represent the direct effect of a physical calculation. Results are based on algorithms for the class Nd2Fe14B. Operational conditions might slightly deviate from the simulation results. Please consider these calculations as a reference point when designing systems.

Table 1: Static force (force vs distance) - characteristics
MPL 20x10x1 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 871 Gs
87.1 mT
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
safe
1 mm 811 Gs
81.1 mT
0.49 kg / 1.07 LBS
485.7 g / 4.8 N
safe
2 mm 713 Gs
71.3 mT
0.37 kg / 0.83 LBS
374.9 g / 3.7 N
safe
3 mm 603 Gs
60.3 mT
0.27 kg / 0.59 LBS
267.9 g / 2.6 N
safe
5 mm 409 Gs
40.9 mT
0.12 kg / 0.27 LBS
123.4 g / 1.2 N
safe
10 mm 157 Gs
15.7 mT
0.02 kg / 0.04 LBS
18.1 g / 0.2 N
safe
15 mm 69 Gs
6.9 mT
0.00 kg / 0.01 LBS
3.5 g / 0.0 N
safe
20 mm 35 Gs
3.5 mT
0.00 kg / 0.00 LBS
0.9 g / 0.0 N
safe
30 mm 12 Gs
1.2 mT
0.00 kg / 0.00 LBS
0.1 g / 0.0 N
safe
50 mm 3 Gs
0.3 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
safe

Table 2: Sliding load (wall)
MPL 20x10x1 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.11 kg / 0.25 LBS
112.0 g / 1.1 N
1 mm Stal (~0.2) 0.10 kg / 0.22 LBS
98.0 g / 1.0 N
2 mm Stal (~0.2) 0.07 kg / 0.16 LBS
74.0 g / 0.7 N
3 mm Stal (~0.2) 0.05 kg / 0.12 LBS
54.0 g / 0.5 N
5 mm Stal (~0.2) 0.02 kg / 0.05 LBS
24.0 g / 0.2 N
10 mm Stal (~0.2) 0.00 kg / 0.01 LBS
4.0 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: Wall mounting (shearing) - behavior on slippery surfaces
MPL 20x10x1 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.17 kg / 0.37 LBS
168.0 g / 1.6 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.11 kg / 0.25 LBS
112.0 g / 1.1 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.06 kg / 0.12 LBS
56.0 g / 0.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.28 kg / 0.62 LBS
280.0 g / 2.7 N

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 20x10x1 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.06 kg / 0.12 LBS
56.0 g / 0.5 N
1 mm
25%
0.14 kg / 0.31 LBS
140.0 g / 1.4 N
2 mm
50%
0.28 kg / 0.62 LBS
280.0 g / 2.7 N
3 mm
75%
0.42 kg / 0.93 LBS
420.0 g / 4.1 N
5 mm
100%
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
10 mm
100%
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
11 mm
100%
0.56 kg / 1.23 LBS
560.0 g / 5.5 N
12 mm
100%
0.56 kg / 1.23 LBS
560.0 g / 5.5 N

Table 5: Working in heat (stability) - thermal limit
MPL 20x10x1 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.56 kg / 1.23 LBS
560.0 g / 5.5 N
OK
40 °C -2.2% 0.55 kg / 1.21 LBS
547.7 g / 5.4 N
OK
60 °C -4.4% 0.54 kg / 1.18 LBS
535.4 g / 5.3 N
80 °C -6.6% 0.52 kg / 1.15 LBS
523.0 g / 5.1 N
100 °C -28.8% 0.40 kg / 0.88 LBS
398.7 g / 3.9 N

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 20x10x1 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 0.94 kg / 2.06 LBS
1 682 Gs
0.14 kg / 0.31 LBS
140 g / 1.4 N
N/A
1 mm 0.89 kg / 1.96 LBS
1 696 Gs
0.13 kg / 0.29 LBS
133 g / 1.3 N
0.80 kg / 1.76 LBS
~0 Gs
2 mm 0.81 kg / 1.79 LBS
1 623 Gs
0.12 kg / 0.27 LBS
122 g / 1.2 N
0.73 kg / 1.61 LBS
~0 Gs
3 mm 0.72 kg / 1.59 LBS
1 530 Gs
0.11 kg / 0.24 LBS
108 g / 1.1 N
0.65 kg / 1.43 LBS
~0 Gs
5 mm 0.53 kg / 1.18 LBS
1 316 Gs
0.08 kg / 0.18 LBS
80 g / 0.8 N
0.48 kg / 1.06 LBS
~0 Gs
10 mm 0.21 kg / 0.45 LBS
818 Gs
0.03 kg / 0.07 LBS
31 g / 0.3 N
0.19 kg / 0.41 LBS
~0 Gs
20 mm 0.03 kg / 0.07 LBS
313 Gs
0.00 kg / 0.01 LBS
5 g / 0.0 N
0.03 kg / 0.06 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
40 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
25 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: Safety (HSE) (implants) - warnings
MPL 20x10x1 / 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
Mobile device 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) 0.5 cm

Table 8: Impact energy (kinetic energy) - collision effects
MPL 20x10x1 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 19.88 km/h
(5.52 m/s)
0.02 J
30 mm 33.76 km/h
(9.38 m/s)
0.07 J
50 mm 43.57 km/h
(12.10 m/s)
0.11 J
100 mm 61.62 km/h
(17.12 m/s)
0.22 J

Table 9: Corrosion resistance
MPL 20x10x1 / 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 20x10x1 / N38

Parameter Value SI Unit / Description
Magnetic Flux 2 173 Mx 21.7 µWb
Pc Coefficient 0.10 Low (Flat)

Table 11: Hydrostatics and buoyancy
MPL 20x10x1 / N38

Environment Effective steel pull Effect
Air (land) 0.56 kg Standard
Water (riverbed) 0.64 kg
(+0.08 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
1. Shear force

*Warning: On a vertical wall, the magnet holds merely ~20% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Thermal stability

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.10

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
Material specification
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: 020126-2026
Magnet Unit Converter
Magnet pull force

Field Strength

Check out also products

Model MPL 20x10x1 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 5.46 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.
Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 20x10x1 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, 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 20x10x1 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. 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.
For mounting flat magnets MPL 20x10x1 / N38, we recommend utilizing strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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.
The presented product is a neodymium magnet with precisely defined parameters: 20 mm (length), 10 mm (width), and 1 mm (thickness). It is a magnetic block with dimensions 20x10x1 mm and a self-weight of 1.5 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros as well as cons of rare earth magnets.

Strengths

Besides their durability, neodymium magnets are valued for these benefits:
  • They have unchanged lifting capacity, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
  • They feature excellent resistance to magnetic field loss as a result of external magnetic sources,
  • In other words, due to the aesthetic finish of nickel, the element becomes visually attractive,
  • Magnets are distinguished by excellent magnetic induction on the outer layer,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of individual forming and optimizing to atypical applications,
  • Key role in advanced technology sectors – they find application in hard drives, electric drive systems, medical devices, and modern systems.
  • Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Cons

Disadvantages of neodymium magnets:
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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
  • 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, when using outdoors
  • We recommend casing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complex shapes.
  • Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small elements of these devices are able to complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Best holding force of the magnet in ideal parameterswhat it depends on?

The declared magnet strength concerns the limit force, measured under optimal environment, specifically:
  • with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
  • with a cross-section of at least 10 mm
  • characterized by lack of roughness
  • without any air gap between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • at standard ambient temperature

Key elements affecting lifting force

Real force is influenced by specific conditions, such as (from most important):
  • Air gap (between the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, rust or dirt).
  • Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Steel grade – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Surface finish – ideal contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
  • Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate lowers the holding force.

Safety rules for work with neodymium magnets
No play value

Always keep magnets away from children. Risk of swallowing is high, and the effects of magnets clamping inside the body are very dangerous.

Machining danger

Combustion risk: Rare earth powder is explosive. Avoid machining magnets without safety gear as this risks ignition.

Thermal limits

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. This process is irreversible.

Magnetic media

Do not bring magnets close to a wallet, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Fragile material

NdFeB magnets are ceramic materials, which means they are very brittle. Clashing of two magnets leads to them shattering into small pieces.

Bone fractures

Large magnets can crush fingers instantly. Do not put your hand between two strong magnets.

Allergy Warning

Certain individuals suffer from a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact can result in an allergic reaction. We recommend use protective gloves.

Medical implants

People with a ICD must keep an large gap from magnets. The magnetism can interfere with the functioning of the life-saving device.

Handling guide

Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Keep away from electronics

A strong magnetic field negatively affects the operation of compasses in phones and GPS navigation. Keep magnets close to a smartphone to prevent breaking the sensors.

Warning! Learn more 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