Product available Ships today (order by 14:00)

MPL 80x40x15 / 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 020177

GTIN/EAN: 5906301811831

5.00

length

80 mm [±0,1 mm]

Width

40 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

360 g

Magnetization Direction

↑ axial

Load capacity

73.57 kg / 721.75 N

Magnetic Induction

285.78 mT / 2858 Gs

Coating

[NiCuNi] Nickel

view properties »

139.54 ZŁ with VAT / pcs + price for transport

113.45 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

113.45 ZŁ

139.54 ZŁ

price from 10 pcs

106.64 ZŁ

131.17 ZŁ

price from 25 pcs

99.84 ZŁ

122.80 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Give us a call +48 888 99 98 98 otherwise get in touch by means of request form the contact section.
Strength and appearance of a neodymium magnet can be tested with our force calculator.

Orders submitted before 14:00 will be dispatched today!

Technical specification of the product - MPL 80x40x15 / N38 - lamellar magnet

Specification / characteristics - MPL 80x40x15 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020177
GTIN/EAN	5906301811831
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	80 mm [±0,1 mm]
Width	40 mm [±0,1 mm]
Height	15 mm [±0,1 mm]
Weight	360 g
Magnetization Direction	↑ axial
Load capacity ~ ?	73.57 kg / 721.75 N
Magnetic Induction ~ ?	285.78 mT / 2858 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 80x40x15 / 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 simulation of the magnet - data

The following values represent the direct effect of a mathematical simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Real-world performance may differ. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs distance) - interaction chart
MPL 80x40x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2857 Gs 285.7 mT	73.57 kg / 162.19 LBS 73570.0 g / 721.7 N	dangerous!
1 mm	2778 Gs 277.8 mT	69.55 kg / 153.32 LBS 69546.1 g / 682.2 N	dangerous!
2 mm	2693 Gs 269.3 mT	65.33 kg / 144.03 LBS 65331.2 g / 640.9 N	dangerous!
3 mm	2603 Gs 260.3 mT	61.05 kg / 134.59 LBS 61047.5 g / 598.9 N	dangerous!
5 mm	2415 Gs 241.5 mT	52.56 kg / 115.87 LBS 52559.7 g / 515.6 N	dangerous!
10 mm	1943 Gs 194.3 mT	34.02 kg / 75.00 LBS 34021.1 g / 333.7 N	dangerous!
15 mm	1527 Gs 152.7 mT	21.01 kg / 46.31 LBS 21007.7 g / 206.1 N	dangerous!
20 mm	1192 Gs 119.2 mT	12.81 kg / 28.24 LBS 12808.1 g / 125.6 N	dangerous!
30 mm	736 Gs 73.6 mT	4.89 kg / 10.77 LBS 4886.6 g / 47.9 N	warning
50 mm	313 Gs 31.3 mT	0.88 kg / 1.95 LBS 884.8 g / 8.7 N	safe

Pulling power decreases significantly with every mm of distance. Keep in mind that even a microscopic distance (e.g., dirt, varnish, veneer) strongly reduces the pull force. Neodymiums work optimally in perfect adhesion; gap drastically cuts the power. See how flashily the pull force fall, when the magnet does not adhere directly to the steel surface. When planning the arrangement, eliminate additional spacers.

Table 2: Vertical force (wall)
MPL 80x40x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	14.71 kg / 32.44 LBS 14714.0 g / 144.3 N
1 mm	Stal (~0.2)	13.91 kg / 30.67 LBS 13910.0 g / 136.5 N
2 mm	Stal (~0.2)	13.07 kg / 28.81 LBS 13066.0 g / 128.2 N
3 mm	Stal (~0.2)	12.21 kg / 26.92 LBS 12210.0 g / 119.8 N
5 mm	Stal (~0.2)	10.51 kg / 23.17 LBS 10512.0 g / 103.1 N
10 mm	Stal (~0.2)	6.80 kg / 15.00 LBS 6804.0 g / 66.7 N
15 mm	Stal (~0.2)	4.20 kg / 9.26 LBS 4202.0 g / 41.2 N
20 mm	Stal (~0.2)	2.56 kg / 5.65 LBS 2562.0 g / 25.1 N
30 mm	Stal (~0.2)	0.98 kg / 2.16 LBS 978.0 g / 9.6 N
50 mm	Stal (~0.2)	0.18 kg / 0.39 LBS 176.0 g / 1.7 N

The table below defines the theoretical holding capacity sufficient to cause the sliding of the magnet down on a upright metal surface (assuming typical friction coefficient). This parameter is a function of the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 80x40x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	22.07 kg / 48.66 LBS 22071.0 g / 216.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	14.71 kg / 32.44 LBS 14714.0 g / 144.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	7.36 kg / 16.22 LBS 7357.0 g / 72.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	36.79 kg / 81.10 LBS 36785.0 g / 360.9 N

When placing a holder on a vertical plane (e.g., a fridge), it you can count on only about 20%-30% of its nominal power. Gravitational force and a low friction coefficient cause that holders move down easier than they pop off the substrate. Designing a vertical fastening? Consider that the shear force is noticeably lower than the maximum static pull force. On a smooth steel, the element will slip down under a significantly smaller cargo. Using a rubber pad can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 80x40x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.45 kg / 5.41 LBS 2452.3 g / 24.1 N
1 mm	8%	6.13 kg / 13.52 LBS 6130.8 g / 60.1 N
2 mm	17%	12.26 kg / 27.03 LBS 12261.7 g / 120.3 N
3 mm	25%	18.39 kg / 40.55 LBS 18392.5 g / 180.4 N
5 mm	42%	30.65 kg / 67.58 LBS 30654.2 g / 300.7 N
10 mm	83%	61.31 kg / 135.16 LBS 61308.3 g / 601.4 N
11 mm	92%	67.44 kg / 148.68 LBS 67439.2 g / 661.6 N
12 mm	100%	73.57 kg / 162.19 LBS 73570.0 g / 721.7 N

A too thin steel is incapable of absorb the entire magnetic field, which weakens actual performance of the magnet. Should you mount a strong magnet to a weak sheet, the magnetism will pass right through and the holding will be smaller. To achieve 100% of this magnet's potential, you need a suitably thick backing of steel. The saturation effect means that on thin elements (e.g., appliance housings), the holder works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Working in heat (stability) - power drop
MPL 80x40x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	73.57 kg / 162.19 LBS 73570.0 g / 721.7 N	OK
40 °C	-2.2%	71.95 kg / 158.63 LBS 71951.5 g / 705.8 N	OK
60 °C	-4.4%	70.33 kg / 155.06 LBS 70332.9 g / 690.0 N
80 °C	-6.6%	68.71 kg / 151.49 LBS 68714.4 g / 674.1 N
100 °C	-28.8%	52.38 kg / 115.48 LBS 52381.8 g / 513.9 N

Standard neodymium magnets change their properties strength above the temperature limit. Protect against heat – excessive heat can irreversibly damage this magnet. With every degree above norm, the magnet's capacity temporarily drops. Refrain from using this product close to heaters exceeding its operating temperature limit. Too high temperature will result in irreversible degradation of magnetic properties.

*Engineering note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low Pc) are more susceptible to demagnetization at lower temperatures compared to rod magnets. Red status in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 80x40x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	161.08 kg / 355.13 LBS 4 384 Gs	24.16 kg / 53.27 LBS 24163 g / 237.0 N	N/A
1 mm	156.77 kg / 345.63 LBS 5 638 Gs	23.52 kg / 51.84 LBS 23516 g / 230.7 N	141.10 kg / 311.07 LBS ~0 Gs
2 mm	152.27 kg / 335.70 LBS 5 556 Gs	22.84 kg / 50.36 LBS 22841 g / 224.1 N	137.05 kg / 302.13 LBS ~0 Gs
3 mm	147.69 kg / 325.60 LBS 5 472 Gs	22.15 kg / 48.84 LBS 22153 g / 217.3 N	132.92 kg / 293.04 LBS ~0 Gs
5 mm	138.36 kg / 305.04 LBS 5 297 Gs	20.75 kg / 45.76 LBS 20754 g / 203.6 N	124.53 kg / 274.53 LBS ~0 Gs
10 mm	115.08 kg / 253.71 LBS 4 830 Gs	17.26 kg / 38.06 LBS 17262 g / 169.3 N	103.57 kg / 228.34 LBS ~0 Gs
20 mm	74.49 kg / 164.22 LBS 3 886 Gs	11.17 kg / 24.63 LBS 11174 g / 109.6 N	67.04 kg / 147.80 LBS ~0 Gs
50 mm	17.20 kg / 37.91 LBS 1 867 Gs	2.58 kg / 5.69 LBS 2580 g / 25.3 N	15.48 kg / 34.12 LBS ~0 Gs
60 mm	10.70 kg / 23.59 LBS 1 473 Gs	1.60 kg / 3.54 LBS 1605 g / 15.7 N	9.63 kg / 21.23 LBS ~0 Gs
70 mm	6.78 kg / 14.94 LBS 1 172 Gs	1.02 kg / 2.24 LBS 1017 g / 10.0 N	6.10 kg / 13.45 LBS ~0 Gs
80 mm	4.38 kg / 9.65 LBS 942 Gs	0.66 kg / 1.45 LBS 657 g / 6.4 N	3.94 kg / 8.69 LBS ~0 Gs
90 mm	2.89 kg / 6.36 LBS 765 Gs	0.43 kg / 0.95 LBS 433 g / 4.2 N	2.60 kg / 5.72 LBS ~0 Gs
100 mm	1.94 kg / 4.27 LBS 627 Gs	0.29 kg / 0.64 LBS 291 g / 2.9 N	1.74 kg / 3.84 LBS ~0 Gs

Two strong neodymiums interact from a significantly greater distance than a magnet and steel setup. Such a system of magnet-to-magnet produces a massive flux and a larger range of performance. Planning to create a strong closure? Use a pair of magnets instead of one magnet and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is massive. The levitation is marginally weaker than the attraction, but still impressive.
*Field value between like poles is approximately ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Figures show sliding force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 80x40x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	26.0 cm
Hearing aid	10 Gs (1.0 mT)	20.5 cm
Mechanical watch	20 Gs (2.0 mT)	16.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	12.5 cm
Car key	50 Gs (5.0 mT)	11.5 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Extremely neodym field poses a large risk to IT equipment as well as pacemakers. These NdFeB products produce a flux that prevents correct functioning of digital equipment. Be aware: the unseen radiation passes through tissues and plastic. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MPL 80x40x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.11 km/h (5.03 m/s)	4.56 J
30 mm	25.99 km/h (7.22 m/s)	9.38 J
50 mm	32.48 km/h (9.02 m/s)	14.65 J
100 mm	45.61 km/h (12.67 m/s)	28.89 J

NdFeB products are prone to chipping – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Impact energy can cause material chips or dangerous crushing to skin. Hold the magnet firmly during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear safety glasses when handling with large magnets.

Table 9: Anti-corrosion coating durability
MPL 80x40x15 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MPL 80x40x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	94 833 Mx	948.3 µWb
P_c Coefficient	0.33	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 80x40x15 / N38

Environment	Effective steel pull	Effect
Air (land)	73.57 kg	Standard
Water (riverbed)	84.24 kg (+10.67 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Steel saturation

*Thin metal sheet (e.g. computer case) severely limits the holding force.

3. Temperature resistance

*For N38 material, 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) = 0.33

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%

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: 020177-2026

Magnet Unit Converter

Magnet pull force

Force in kg

Newtons (N)

Pounds (lbs)

Magnetic Induction

Induction (Gs)

Tesla (T)

Insert a number in one of the inputs, to see the rest change instantly.

Other proposals

Product available Ships today (order by 14:00)

UMS 75x19x10.5x18 / N38 - conical magnetic holder

125.56 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 25x8x20 / N38 - ring magnet

41.71 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMGGW 29x8 [M4] GW / N38 - magnetic holder rubber internal thread

8.61 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 22x6x10 / N38 - ring magnet

13.95 ZŁ brutto / pcs

Model MPL 80x40x15 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 721.75 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. To separate the MPL 80x40x15 / 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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

Plate magnets MPL 80x40x15 / 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 hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 80x40x15 / 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. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

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 (80x40 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 80x40x15 mm, which, at a weight of 360 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 73.57 kg (force ~721.75 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
They do not lose their magnetic properties even under external field action,
Thanks to the glossy finish, the layer of Ni-Cu-Ni, gold-plated, or silver gives an aesthetic appearance,
Magnetic induction on the working layer of the magnet turns out to be very high,
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...
Possibility of exact forming as well as optimizing to defined requirements,
Versatile presence in innovative solutions – they are utilized in hard drives, electromotive mechanisms, medical devices, as well as modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which enables their usage in miniature devices

Disadvantages

Characteristics of disadvantages of neodymium magnets and proposals for their use:

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
NdFeB magnets demagnetize 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 extremely resistant to heat
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in realizing threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical after entering the body.
With mass production the cost of neodymium magnets can be a barrier,

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

The declared magnet strength represents the peak performance, obtained under laboratory conditions, namely:

on a block made of mild steel, effectively closing the magnetic field
with a thickness no less than 10 mm
with a plane cleaned and smooth
without the slightest insulating layer between the magnet and steel
for force applied at a right angle (pull-off, not shear)
at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the magnet holding will differ subject to the following factors, starting with the most relevant:

Gap between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Base massiveness – too thin plate causes magnetic saturation, causing part of the flux to be escaped to the other side.
Chemical composition of the base – low-carbon steel attracts best. Alloy steels reduce magnetic permeability and holding force.
Smoothness – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet and the plate decreases the holding force.

Warnings

Warning for allergy sufferers

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, immediately stop handling magnets and wear gloves.

Product not for children

Strictly keep magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are fatal.

Heat sensitivity

Keep cool. Neodymium magnets are susceptible to heat. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Pacemakers

For implant holders: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.

Crushing force

Pinching hazard: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.

Safe distance

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.

Fire risk

Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Powerful field

Before use, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Precision electronics

A strong magnetic field negatively affects the operation of compasses in phones and navigation systems. Maintain magnets near a smartphone to prevent damaging the sensors.

Magnets are brittle

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets will cause them shattering into small pieces.

Security! Learn more about hazards in the article: Safety of working with magnets.

MPL 80x40x15 / N38 - lamellar magnet

Technical specification of the product - MPL 80x40x15 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - data

Table 1: Static pull force (force vs distance) - interaction chart MPL 80x40x15 / N38

Table 2: Vertical force (wall) MPL 80x40x15 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MPL 80x40x15 / N38

Table 4: Material efficiency (substrate influence) - power losses MPL 80x40x15 / N38

Table 5: Working in heat (stability) - power drop MPL 80x40x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 80x40x15 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MPL 80x40x15 / N38

Table 8: Impact energy (kinetic energy) - warning MPL 80x40x15 / N38

Table 9: Anti-corrosion coating durability MPL 80x40x15 / N38

Table 10: Construction data (Pc) MPL 80x40x15 / N38

Table 11: Physics of underwater searching MPL 80x40x15 / N38

1. Vertical hold

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Induction

Other proposals

UMS 75x19x10.5x18 / N38 - conical magnetic holder

MP 25x8x20 / N38 - ring magnet

UMGGW 29x8 [M4] GW / N38 - magnetic holder rubber internal thread

MP 22x6x10 / N38 - ring magnet

Advantages and disadvantages of Nd2Fe14B magnets.

Benefits

Disadvantages

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

Impact of factors on magnetic holding capacity in practice

Warnings

Warning for allergy sufferers

Product not for children

Heat sensitivity

Pacemakers

Crushing force

Safe distance

Fire risk

Powerful field

Precision electronics

Magnets are brittle

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MPL 80x40x15 / N38

Table 2: Vertical force (wall)
MPL 80x40x15 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 80x40x15 / N38

Table 4: Material efficiency (substrate influence) - power losses
MPL 80x40x15 / N38

Table 5: Working in heat (stability) - power drop
MPL 80x40x15 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 80x40x15 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 80x40x15 / N38

Table 8: Impact energy (kinetic energy) - warning
MPL 80x40x15 / N38

Table 9: Anti-corrosion coating durability
MPL 80x40x15 / N38

Table 10: Construction data (P_c)
MPL 80x40x15 / N38

Table 11: Physics of underwater searching
MPL 80x40x15 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.