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MPL 3x3x3 / N38 - lamellar magnet

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

lamellar magnet

Catalog no 020148

GTIN/EAN: 5906301811541

5.00

length

3 mm [±0,1 mm]

Width

3 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

0.2 g

Magnetization Direction

↑ axial

Load capacity

0.34 kg / 3.37 N

Magnetic Induction

538.48 mT / 5385 Gs

Coating

[NiCuNi] Nickel

technical parameters »

0.1845 ZŁ with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

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Lifting power and appearance of neodymium magnets can be analyzed using our modular calculator.

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Product card - MPL 3x3x3 / N38 - lamellar magnet

Specification / characteristics - MPL 3x3x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020148
GTIN/EAN	5906301811541
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	3 mm [±0,1 mm]
Width	3 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	0.2 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.34 kg / 3.37 N
Magnetic Induction ~ ?	538.48 mT / 5385 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 3x3x3 / 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 - data

Presented information represent the outcome of a physical analysis. Values were calculated on models for the material Nd₂Fe₁₄B. Operational performance might slightly differ from theoretical values. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - power drop
MPL 3x3x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5372 Gs 537.2 mT	0.34 kg / 0.75 LBS 340.0 g / 3.3 N	weak grip
1 mm	2530 Gs 253.0 mT	0.08 kg / 0.17 LBS 75.4 g / 0.7 N	weak grip
2 mm	1127 Gs 112.7 mT	0.01 kg / 0.03 LBS 15.0 g / 0.1 N	weak grip
3 mm	562 Gs 56.2 mT	0.00 kg / 0.01 LBS 3.7 g / 0.0 N	weak grip
5 mm	192 Gs 19.2 mT	0.00 kg / 0.00 LBS 0.4 g / 0.0 N	weak grip
10 mm	35 Gs 3.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
15 mm	12 Gs 1.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
20 mm	5 Gs 0.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
30 mm	2 Gs 0.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
50 mm	0 Gs 0.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Pulling power decreases significantly with every mm of spacing. Keep in mind that even a very thin break (e.g., dirt, paint, veneer) strongly reduces the pull force. Neodymiums hold optimally at the point of direct contact; air break weakens the force. See how flashily the pull force plummet, when the product does not adhere flatly to the steel surface. When calculating the mounting, eliminate additional spacers.

Table 2: Slippage force (wall)
MPL 3x3x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.07 kg / 0.15 LBS 68.0 g / 0.7 N
1 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 16.0 g / 0.2 N
2 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 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

The table below defines the approximate holding capacity required to cause the shifting of the magnet downwards along a upright metal surface (considering standard friction). This parameter depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 3x3x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.10 kg / 0.22 LBS 102.0 g / 1.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.07 kg / 0.15 LBS 68.0 g / 0.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.07 LBS 34.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.17 kg / 0.37 LBS 170.0 g / 1.7 N

When mounting a magnet on a upright wall (e.g., a fridge), it will maintain just about 20%-30% of its maximum pull force. Gravitational force as well as a weak degree of grip cause that products slip easier than they pull off. Designing a hanger? Consider that the sliding force is much weaker than the maximum static pull force. On a slippery surface, the magnet will slip down under a noticeably lighter weight. Utilizing a rubberized pad can significantly improve the result.

Table 4: Material efficiency (saturation) - power losses
MPL 3x3x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.07 LBS 34.0 g / 0.3 N
1 mm	25%	0.09 kg / 0.19 LBS 85.0 g / 0.8 N
2 mm	50%	0.17 kg / 0.37 LBS 170.0 g / 1.7 N
3 mm	75%	0.26 kg / 0.56 LBS 255.0 g / 2.5 N
5 mm	100%	0.34 kg / 0.75 LBS 340.0 g / 3.3 N
10 mm	100%	0.34 kg / 0.75 LBS 340.0 g / 3.3 N
11 mm	100%	0.34 kg / 0.75 LBS 340.0 g / 3.3 N
12 mm	100%	0.34 kg / 0.75 LBS 340.0 g / 3.3 N

A too thin steel is unable to focus the full magnetic flux, which weakens actual performance of the holder. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you need a suitably thick backing of metal. The saturation effect means that on thin elements (e.g., appliance housings), the product holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - power drop
MPL 3x3x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.34 kg / 0.75 LBS 340.0 g / 3.3 N	OK
40 °C	-2.2%	0.33 kg / 0.73 LBS 332.5 g / 3.3 N	OK
60 °C	-4.4%	0.33 kg / 0.72 LBS 325.0 g / 3.2 N	OK
80 °C	-6.6%	0.32 kg / 0.70 LBS 317.6 g / 3.1 N
100 °C	-28.8%	0.24 kg / 0.53 LBS 242.1 g / 2.4 N

Ordinary NdFeB products irreversibly lose parameters after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's force temporarily lowers. Refrain from using this product in hot environments higher than its working range. Too high temperature will cause permanent loss of magnetism.

*Important note: Thermal stability is determined by both grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization under lower heat stress compared to rod magnets. Warning indicator in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MPL 3x3x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	1.60 kg / 3.53 LBS 5 931 Gs	0.24 kg / 0.53 LBS 240 g / 2.4 N	N/A
1 mm	0.80 kg / 1.77 LBS 7 610 Gs	0.12 kg / 0.27 LBS 120 g / 1.2 N	0.72 kg / 1.59 LBS ~0 Gs
2 mm	0.36 kg / 0.78 LBS 5 061 Gs	0.05 kg / 0.12 LBS 53 g / 0.5 N	0.32 kg / 0.70 LBS ~0 Gs
3 mm	0.15 kg / 0.34 LBS 3 343 Gs	0.02 kg / 0.05 LBS 23 g / 0.2 N	0.14 kg / 0.31 LBS ~0 Gs
5 mm	0.03 kg / 0.08 LBS 1 568 Gs	0.01 kg / 0.01 LBS 5 g / 0.1 N	0.03 kg / 0.07 LBS ~0 Gs
10 mm	0.00 kg / 0.00 LBS 384 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
20 mm	0.00 kg / 0.00 LBS 70 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
50 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
60 mm	0.00 kg / 0.00 LBS 3 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 2 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 1 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 1 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 1 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a magnet and sheet setup. Such a system of two magnets produces a massive flux and a larger range of performance. Designing a powerful holder? Apply two magnets instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the collision energy is extreme. The repulsion force is slightly lower than the attraction, but still impressive.
*Field value for N-N configuration is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Important: Calculations show friction force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - precautionary measures
MPL 3x3x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	2.5 cm
Hearing aid	10 Gs (1.0 mT)	2.0 cm
Mechanical watch	20 Gs (2.0 mT)	1.5 cm
Mobile device	40 Gs (4.0 mT)	1.0 cm
Car key	50 Gs (5.0 mT)	1.0 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

A strong magnetic field poses a real danger to IT equipment and pacemakers. These neodymiums generate a field that disrupts operation of digital equipment. Remember: the invisible magnetic field passes through tissues and glass. Special caution must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MPL 3x3x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	41.58 km/h (11.55 m/s)	0.01 J
30 mm	72.02 km/h (20.01 m/s)	0.04 J
50 mm	92.98 km/h (25.83 m/s)	0.07 J
100 mm	131.49 km/h (36.53 m/s)	0.13 J

Magnetic elements are prone to chipping – a strong collision with metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Kinetic force can cause material chips or injury to skin. Always hold the magnet during installation so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Corrosion resistance
MPL 3x3x3 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MPL 3x3x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	495 Mx	5.0 µWb
P_c Coefficient	0.84	High (Stable)

Flux value emitted by the magnet pole. Essential parameter for generator designers as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 3x3x3 / N38

Environment	Effective steel pull	Effect
Air (land)	0.34 kg	Standard
Water (riverbed)	0.39 kg (+0.05 kg buoyancy gain)	+14.5%

Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Note: On a vertical surface, the magnet holds merely approx. 20-30% of its perpendicular strength.

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) significantly reduces 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 P_c (Permeance Coefficient) = 0.84

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

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: 020148-2026

Measurement Calculator

Magnet pull force

lbs

Magnetic Field

Gauss (Gs)

Induction (T)

Insert a number in one of the inputs, to see the remaining units change in real-time.

MW 12x8 / N38 - cylindrical magnet

2.47 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 15x7/3.5x5 / N38 - ring magnet

3.44 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 15x5 / N38 - cylindrical magnet

3.20 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 25x10x5 / N38 - lamellar magnet

4.66 ZŁ brutto / pcs

This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 3x3x3 mm and a weight of 0.2 g, guarantees premium class connection. As a magnetic bar with high power (approx. 0.34 kg), this product is available immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

The key to success is sliding 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 3x3x3 / 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 3x3x3 / N38 are the foundation for many industrial devices, such as filters catching filings 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 3x3x3 / N38, it is best to use two-component adhesives (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 roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

Standardly, the MPL 3x3x3 / N38 model is magnetized through the thickness (dimension 3 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (3x3 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: 3 mm (length), 3 mm (width), and 3 mm (thickness). The key parameter here is the holding force amounting to approximately 0.34 kg (force ~3.37 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Pros as well as cons of neodymium magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

They have constant strength, and over around ten years their attraction force decreases symbolically – ~1% (according to theory),
They maintain their magnetic properties even under strong external field,
The use of an refined coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
They feature high magnetic induction at the operating surface, which affects their effectiveness,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to flexibility in forming and the capacity to adapt to specific needs,
Key role in innovative solutions – they are used in data components, electric drive systems, medical devices, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in small systems

Weaknesses

Disadvantages of neodymium magnets:

At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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
They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of creating nuts in the magnet and complex shapes - preferred is cover - magnet mounting.
Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
Due to expensive raw materials, their price is higher than average,

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

The load parameter shown concerns the limit force, obtained under optimal environment, specifically:

with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
with a cross-section minimum 10 mm
with a surface free of scratches
under conditions of no distance (surface-to-surface)
for force acting at a right angle (in the magnet axis)
at room temperature

Lifting capacity in real conditions – factors

Holding efficiency is influenced by working environment parameters, mainly (from most important):

Distance (between the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
Angle of force application – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Steel type – low-carbon steel attracts best. Higher carbon content decrease magnetic permeability and holding force.
Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

H&S for magnets

Permanent damage

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

Hand protection

Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!

Mechanical processing

Powder generated during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Threat to electronics

Device Safety: Strong magnets can damage data carriers and delicate electronics (heart implants, medical aids, timepieces).

This is not a toy

These products are not toys. Swallowing a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and requires urgent medical intervention.

Protective goggles

Watch out for shards. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Precision electronics

A powerful magnetic field negatively affects the operation of compasses in phones and GPS navigation. Maintain magnets near a device to avoid breaking the sensors.

Danger to pacemakers

Patients with a ICD should keep an absolute distance from magnets. The magnetic field can disrupt the functioning of the implant.

Immense force

Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Nickel coating and allergies

Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, cease working with magnets and use protective gear.

Caution! Details about hazards in the article: Safety of working with magnets.

MPL 3x3x3 / N38 - lamellar magnet

Product card - MPL 3x3x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the assembly - data

Table 1: Static force (pull vs gap) - power drop MPL 3x3x3 / N38

Table 2: Slippage force (wall) MPL 3x3x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 3x3x3 / N38

Table 4: Material efficiency (saturation) - power losses MPL 3x3x3 / N38

Table 5: Thermal resistance (material behavior) - power drop MPL 3x3x3 / N38

Table 6: Two magnets (repulsion) - field collision MPL 3x3x3 / N38

Table 7: Protective zones (implants) - precautionary measures MPL 3x3x3 / N38

Table 8: Impact energy (kinetic energy) - warning MPL 3x3x3 / N38

Table 9: Corrosion resistance MPL 3x3x3 / N38

Table 10: Electrical data (Pc) MPL 3x3x3 / N38

Table 11: Underwater work (magnet fishing) MPL 3x3x3 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Thermal stability

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

Material specification

Environmental data

Magnet pull force

Magnetic Field

See also products

MW 12x8 / N38 - cylindrical magnet

MP 15x7/3.5x5 / N38 - ring magnet

MW 15x5 / N38 - cylindrical magnet

MPL 25x10x5 / N38 - lamellar magnet

Pros as well as cons of neodymium magnets.

Advantages

Weaknesses

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Lifting capacity in real conditions – factors

H&S for magnets

Permanent damage

Hand protection

Mechanical processing

Threat to electronics

This is not a toy

Protective goggles

Precision electronics

Danger to pacemakers

Immense force

Nickel coating and allergies

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MPL 3x3x3 / N38

Table 2: Slippage force (wall)
MPL 3x3x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 3x3x3 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 3x3x3 / N38

Table 5: Thermal resistance (material behavior) - power drop
MPL 3x3x3 / N38

Table 6: Two magnets (repulsion) - field collision
MPL 3x3x3 / N38

Table 7: Protective zones (implants) - precautionary measures
MPL 3x3x3 / N38

Table 8: Impact energy (kinetic energy) - warning
MPL 3x3x3 / N38

Table 9: Corrosion resistance
MPL 3x3x3 / N38

Table 10: Electrical data (P_c)
MPL 3x3x3 / N38

Table 11: Underwater work (magnet fishing)
MPL 3x3x3 / N38