MPL 100x40x20 / N38 - lamellar magnet - ujęcie 2

MPL 100x40x20 / N38 - lamellar magnet - ujęcie 3

Product available Ships tomorrow

MPL 100x40x20 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

lamellar magnet

Catalog no 020109

GTIN/EAN: 5906301811152

5.00

length

100 mm [±0,1 mm]

Width

40 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

600 g

Magnetization Direction

↑ axial

Load capacity

120.01 kg / 1177.33 N

Magnetic Induction

337.24 mT / 3372 Gs

Coating

[NiCuNi] Nickel

view properties »

335.30 ZŁ with VAT / pcs + price for transport

272.60 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

272.60 ZŁ

335.30 ZŁ

price from 5 pcs

256.24 ZŁ

315.18 ZŁ

price from 10 pcs

239.89 ZŁ

295.06 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Call us now +48 22 499 98 98 or send us a note by means of our online form the contact section.
Strength along with appearance of a neodymium magnet can be tested with our online calculation tool.

Same-day processing for orders placed before 14:00.

Physical properties - MPL 100x40x20 / N38 - lamellar magnet

Specification / characteristics - MPL 100x40x20 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020109
GTIN/EAN	5906301811152
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	100 mm [±0,1 mm]
Width	40 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	600 g
Magnetization Direction	↑ axial
Load capacity ~ ?	120.01 kg / 1177.33 N
Magnetic Induction ~ ?	337.24 mT / 3372 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 100x40x20 / 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

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 modeling of the assembly - report

The following data are the direct effect of a engineering calculation. Values were calculated on algorithms for the material Nd₂Fe₁₄B. Actual parameters might slightly deviate from the simulation results. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs distance) - power drop
MPL 100x40x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3372 Gs 337.2 mT	120.01 kg / 264.58 LBS 120010.0 g / 1177.3 N	critical level
1 mm	3268 Gs 326.8 mT	112.70 kg / 248.45 LBS 112695.4 g / 1105.5 N	critical level
2 mm	3158 Gs 315.8 mT	105.27 kg / 232.09 LBS 105272.6 g / 1032.7 N	critical level
3 mm	3046 Gs 304.6 mT	97.92 kg / 215.88 LBS 97921.3 g / 960.6 N	critical level
5 mm	2818 Gs 281.8 mT	83.78 kg / 184.71 LBS 83783.3 g / 821.9 N	critical level
10 mm	2266 Gs 226.6 mT	54.17 kg / 119.43 LBS 54174.5 g / 531.5 N	critical level
15 mm	1794 Gs 179.4 mT	33.96 kg / 74.86 LBS 33955.7 g / 333.1 N	critical level
20 mm	1419 Gs 141.9 mT	21.25 kg / 46.84 LBS 21248.1 g / 208.4 N	critical level
30 mm	908 Gs 90.8 mT	8.70 kg / 19.17 LBS 8696.3 g / 85.3 N	strong
50 mm	416 Gs 41.6 mT	1.83 kg / 4.02 LBS 1825.4 g / 17.9 N	weak grip

Grip strength drops sharply with every subsequent millimeter of spacing. Note that even a microscopic distance (e.g., dirt, paint, rust) significantly weakens the grip. Neodymiums hold most effectively during direct contact; distance nullifies the force. See how quickly the parameters drop, when the magnet does not touch tightly to the steel surface. When calculating the assembly, avoid additional spacers.

Table 2: Sliding force (vertical surface)
MPL 100x40x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	24.00 kg / 52.92 LBS 24002.0 g / 235.5 N
1 mm	Stal (~0.2)	22.54 kg / 49.69 LBS 22540.0 g / 221.1 N
2 mm	Stal (~0.2)	21.05 kg / 46.42 LBS 21054.0 g / 206.5 N
3 mm	Stal (~0.2)	19.58 kg / 43.18 LBS 19584.0 g / 192.1 N
5 mm	Stal (~0.2)	16.76 kg / 36.94 LBS 16756.0 g / 164.4 N
10 mm	Stal (~0.2)	10.83 kg / 23.88 LBS 10834.0 g / 106.3 N
15 mm	Stal (~0.2)	6.79 kg / 14.97 LBS 6792.0 g / 66.6 N
20 mm	Stal (~0.2)	4.25 kg / 9.37 LBS 4250.0 g / 41.7 N
30 mm	Stal (~0.2)	1.74 kg / 3.84 LBS 1740.0 g / 17.1 N
50 mm	Stal (~0.2)	0.37 kg / 0.81 LBS 366.0 g / 3.6 N

The following data presents the estimated weight limit needed to initiate the slippage of the magnet downwards along a upright metal surface (assuming standard friction coefficient). The holding force is a function of the gap size between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MPL 100x40x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	36.00 kg / 79.37 LBS 36003.0 g / 353.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	24.00 kg / 52.92 LBS 24002.0 g / 235.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	12.00 kg / 26.46 LBS 12001.0 g / 117.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	60.01 kg / 132.29 LBS 60005.0 g / 588.6 N

When mounting a holder on a upright wall (e.g., a car body), it will maintain barely about 20%-30% of its maximum pull force. Gravity and a weak degree of grip cause that magnets slide down easier than they detach. Want to create a vertical fastening? Note that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the magnet will slide down under a significantly smaller weight. Utilizing a rubberized layer can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 100x40x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	4.00 kg / 8.82 LBS 4000.3 g / 39.2 N
1 mm	8%	10.00 kg / 22.05 LBS 10000.8 g / 98.1 N
2 mm	17%	20.00 kg / 44.10 LBS 20001.7 g / 196.2 N
3 mm	25%	30.00 kg / 66.14 LBS 30002.5 g / 294.3 N
5 mm	42%	50.00 kg / 110.24 LBS 50004.2 g / 490.5 N
10 mm	83%	100.01 kg / 220.48 LBS 100008.3 g / 981.1 N
11 mm	92%	110.01 kg / 242.53 LBS 110009.2 g / 1079.2 N
12 mm	100%	120.01 kg / 264.58 LBS 120010.0 g / 1177.3 N

A thin sheet is not enough to take in the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a weak sheet, the field will pass right through and the holding will be smaller. To achieve full efficiency of this magnet's power, you require a sufficiently solid piece of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the holder holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - power drop
MPL 100x40x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	120.01 kg / 264.58 LBS 120010.0 g / 1177.3 N	OK
40 °C	-2.2%	117.37 kg / 258.76 LBS 117369.8 g / 1151.4 N	OK
60 °C	-4.4%	114.73 kg / 252.94 LBS 114729.6 g / 1125.5 N
80 °C	-6.6%	112.09 kg / 247.11 LBS 112089.3 g / 1099.6 N
100 °C	-28.8%	85.45 kg / 188.38 LBS 85447.1 g / 838.2 N

Ordinary NdFeB products change their properties power above the temperature limit. Avoid high temperatures – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's capacity briefly drops. Refrain from using this product in hot environments exceeding its working range. Exceeding the critical threshold will cause irreversible degradation of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures than taller cylinders. Warning indicator in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field collision
MPL 100x40x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	280.40 kg / 618.18 LBS 4 790 Gs	42.06 kg / 92.73 LBS 42060 g / 412.6 N	N/A
1 mm	271.97 kg / 599.59 LBS 6 642 Gs	40.80 kg / 89.94 LBS 40796 g / 400.2 N	244.77 kg / 539.63 LBS ~0 Gs
2 mm	263.31 kg / 580.50 LBS 6 535 Gs	39.50 kg / 87.08 LBS 39497 g / 387.5 N	236.98 kg / 522.45 LBS ~0 Gs
3 mm	254.63 kg / 561.37 LBS 6 427 Gs	38.20 kg / 84.21 LBS 38195 g / 374.7 N	229.17 kg / 505.24 LBS ~0 Gs
5 mm	237.35 kg / 523.26 LBS 6 205 Gs	35.60 kg / 78.49 LBS 35602 g / 349.3 N	213.61 kg / 470.93 LBS ~0 Gs
10 mm	195.76 kg / 431.58 LBS 5 635 Gs	29.36 kg / 64.74 LBS 29364 g / 288.1 N	176.18 kg / 388.42 LBS ~0 Gs
20 mm	126.58 kg / 279.06 LBS 4 531 Gs	18.99 kg / 41.86 LBS 18987 g / 186.3 N	113.92 kg / 251.15 LBS ~0 Gs
50 mm	31.47 kg / 69.38 LBS 2 259 Gs	4.72 kg / 10.41 LBS 4721 g / 46.3 N	28.32 kg / 62.44 LBS ~0 Gs
60 mm	20.32 kg / 44.80 LBS 1 815 Gs	3.05 kg / 6.72 LBS 3048 g / 29.9 N	18.29 kg / 40.32 LBS ~0 Gs
70 mm	13.38 kg / 29.50 LBS 1 473 Gs	2.01 kg / 4.42 LBS 2007 g / 19.7 N	12.04 kg / 26.55 LBS ~0 Gs
80 mm	8.98 kg / 19.80 LBS 1 207 Gs	1.35 kg / 2.97 LBS 1347 g / 13.2 N	8.08 kg / 17.82 LBS ~0 Gs
90 mm	6.14 kg / 13.53 LBS 998 Gs	0.92 kg / 2.03 LBS 920 g / 9.0 N	5.52 kg / 12.18 LBS ~0 Gs
100 mm	4.27 kg / 9.40 LBS 832 Gs	0.64 kg / 1.41 LBS 640 g / 6.3 N	3.84 kg / 8.46 LBS ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a wider radius of operation. Planning to create a powerful holder? Apply two magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the impact force is huge. The repulsion force is a bit weaker than the connection force, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Important: Results demonstrate sliding force of two identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 100x40x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	30.5 cm
Hearing aid	10 Gs (1.0 mT)	24.0 cm
Timepiece	20 Gs (2.0 mT)	18.5 cm
Mobile device	40 Gs (4.0 mT)	14.5 cm
Remote	50 Gs (5.0 mT)	13.5 cm
Payment card	400 Gs (40.0 mT)	5.5 cm
HDD hard drive	600 Gs (60.0 mT)	4.5 cm

Powerful magnet radiation is a large risk to electronics as well as medical implants. These magnets generate a flux that disrupts operation of digital equipment. Notice: the invisible magnetic field passes through tissues and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MPL 100x40x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.84 km/h (4.96 m/s)	7.37 J
30 mm	25.80 km/h (7.17 m/s)	15.41 J
50 mm	32.20 km/h (8.94 m/s)	23.99 J
100 mm	45.13 km/h (12.54 m/s)	47.14 J

Neodymium magnets are prone to chipping – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Kinetic force can destroy the magnet or injury to skin. Always hold the magnet during installation so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Coating parameters (durability)
MPL 100x40x20 / 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)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MPL 100x40x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	131 922 Mx	1319.2 µWb
P_c Coefficient	0.38	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter in coil applications as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 100x40x20 / N38

Environment	Effective steel pull	Effect
Air (land)	120.01 kg	Standard
Water (riverbed)	137.41 kg (+17.40 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Note: On a vertical wall, the magnet retains just ~20% of its perpendicular strength.

2. Steel saturation

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.38

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 P_c (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 P_c 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: 020109-2026

Quick Unit Converter

Force (pull)

Force in kg

Newtons (N)

Pounds (lbs)

Magnetic Induction

Induction (T)

Input a figure in just one slot to see the conversion in the other fields right away.

View also proposals

Product available Ships tomorrow

HH 42x8.8 [M6] / N38 - through hole magnetic holder

29.89 ZŁ brutto / pcs

Product available Ships tomorrow

MP 24x16x2 / N38 - ring magnet

3.69 ZŁ brutto / pcs

Product available Ships tomorrow

BM 950x180x70 [4x M8] - magnetic beam

8564.49 ZŁ brutto / pcs

Product available Ships tomorrow

MW 6x6 / N38 - cylindrical magnet

0.677 ZŁ brutto / pcs

Model MPL 100x40x20 / 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 1177.33 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.

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 120.01 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 wind generators and material handling systems. Thanks to the flat surface and high force (approx. 120.01 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 100x40x20 / N38, we recommend utilizing strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. 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. In practice, this means that this magnet has the greatest attraction force on its main planes (100x40 mm), which is ideal for flat mounting. 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: 100 mm (length), 40 mm (width), and 20 mm (thickness). The key parameter here is the holding force amounting to approximately 120.01 kg (force ~1177.33 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Pros

Besides their high retention, neodymium magnets are valued for these benefits:

They do not lose power, even after around 10 years – the drop in strength is only ~1% (based on measurements),
They maintain their magnetic properties even under strong external field,
A magnet with a smooth gold surface is more attractive,
Magnetic induction on the surface of the magnet turns out to be maximum,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Thanks to versatility in shaping and the capacity to modify to client solutions,
Huge importance in modern industrial fields – they find application in computer drives, electric drive systems, precision medical tools, and complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as 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
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing nuts and complicated shapes in magnets, we propose using a housing - magnetic mechanism.
Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. It is also worth noting that small components of these magnets are able to complicate diagnosis medical when they are in the body.
Due to complex production process, their price is higher than average,

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

The specified lifting capacity refers to the maximum value, recorded under optimal environment, meaning:

using a sheet made of high-permeability steel, serving as a circuit closing element
possessing a massiveness of minimum 10 mm to ensure full flux closure
with a plane cleaned and smooth
without any air gap between the magnet and steel
under axial force direction (90-degree angle)
at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Holding efficiency is affected by working environment parameters, including (from priority):

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the flux to be lost to the other side.
Steel type – low-carbon steel gives the best results. Alloy steels decrease magnetic permeability and lifting capacity.
Surface structure – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the load capacity.

Precautions when working with neodymium magnets

Implant safety

For implant holders: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or ask another person to handle the magnets.

Hand protection

Risk of injury: The pulling power is so great that it can cause hematomas, crushing, and broken bones. Use thick gloves.

Thermal limits

Standard neodymium magnets (N-type) undergo demagnetization when the temperature goes above 80°C. This process is irreversible.

Warning for allergy sufferers

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction occurs, immediately stop working with magnets and use protective gear.

Combustion hazard

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Fragile material

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Protect data

Powerful magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Stay away of at least 10 cm.

Phone sensors

A strong magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Do not bring magnets close to a device to avoid damaging the sensors.

Danger to the youngest

NdFeB magnets are not intended for children. Accidental ingestion of several magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and requires immediate surgery.

Safe operation

Use magnets consciously. Their huge power can surprise even professionals. Stay alert and respect their force.

Important! Looking for details? Read our article: Why are neodymium magnets dangerous?

MPL 100x40x20 / N38 - lamellar magnet

Physical properties - MPL 100x40x20 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - report

Table 1: Static pull force (force vs distance) - power drop MPL 100x40x20 / N38

Table 2: Sliding force (vertical surface) MPL 100x40x20 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 100x40x20 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 100x40x20 / N38

Table 5: Working in heat (material behavior) - power drop MPL 100x40x20 / N38

Table 6: Two magnets (repulsion) - field collision MPL 100x40x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MPL 100x40x20 / N38

Table 8: Impact energy (kinetic energy) - warning MPL 100x40x20 / N38

Table 9: Coating parameters (durability) MPL 100x40x20 / N38

Table 10: Construction data (Pc) MPL 100x40x20 / N38

Table 11: Underwater work (magnet fishing) MPL 100x40x20 / N38

1. Wall mount (shear)

2. Steel saturation

3. Heat tolerance

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

Chemical composition

Environmental data

Force (pull)

Magnetic Induction

View also proposals

HH 42x8.8 [M6] / N38 - through hole magnetic holder

MP 24x16x2 / N38 - ring magnet

BM 950x180x70 [4x M8] - magnetic beam

MW 6x6 / N38 - cylindrical magnet

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Cons

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

Magnet lifting force in use – key factors

Precautions when working with neodymium magnets

Implant safety

Hand protection

Thermal limits

Warning for allergy sufferers

Combustion hazard

Fragile material

Protect data

Phone sensors

Danger to the youngest

Safe operation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - power drop
MPL 100x40x20 / N38

Table 2: Sliding force (vertical surface)
MPL 100x40x20 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 100x40x20 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 100x40x20 / N38

Table 5: Working in heat (material behavior) - power drop
MPL 100x40x20 / N38

Table 6: Two magnets (repulsion) - field collision
MPL 100x40x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 100x40x20 / N38

Table 8: Impact energy (kinetic energy) - warning
MPL 100x40x20 / N38

Table 9: Coating parameters (durability)
MPL 100x40x20 / N38

Table 10: Construction data (P_c)
MPL 100x40x20 / N38

Table 11: Underwater work (magnet fishing)
MPL 100x40x20 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.