Product available Ships tomorrow

MPL 30x20x10 / 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 020141

GTIN/EAN: 5906301811473

5.00

length

30 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

45 g

Magnetization Direction

↑ axial

Load capacity

19.53 kg / 191.55 N

Magnetic Induction

371.57 mT / 3716 Gs

Coating

[NiCuNi] Nickel

technical specifications »

16.11 ZŁ with VAT / pcs + price for transport

13.10 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

13.10 ZŁ

16.11 ZŁ

price from 50 pcs

12.31 ZŁ

15.15 ZŁ

price from 200 pcs

11.53 ZŁ

14.18 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to negotiate?

Contact us by phone +48 22 499 98 98 otherwise send us a note through form the contact form page.
Weight and form of magnets can be analyzed on our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical of the product - MPL 30x20x10 / N38 - lamellar magnet

Specification / characteristics - MPL 30x20x10 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020141
GTIN/EAN	5906301811473
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	30 mm [±0,1 mm]
Width	20 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	45 g
Magnetization Direction	↑ axial
Load capacity ~ ?	19.53 kg / 191.55 N
Magnetic Induction ~ ?	371.57 mT / 3716 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 30x20x10 / 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

Technical analysis of the assembly - technical parameters

These information represent the outcome of a physical calculation. Results were calculated on models for the material Nd₂Fe₁₄B. Real-world parameters might slightly differ. Treat these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MPL 30x20x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3715 Gs 371.5 mT	19.53 kg / 43.06 LBS 19530.0 g / 191.6 N	critical level
1 mm	3464 Gs 346.4 mT	16.98 kg / 37.44 LBS 16983.1 g / 166.6 N	critical level
2 mm	3197 Gs 319.7 mT	14.47 kg / 31.89 LBS 14466.6 g / 141.9 N	critical level
3 mm	2927 Gs 292.7 mT	12.12 kg / 26.73 LBS 12123.3 g / 118.9 N	critical level
5 mm	2408 Gs 240.8 mT	8.21 kg / 18.10 LBS 8207.8 g / 80.5 N	strong
10 mm	1411 Gs 141.1 mT	2.82 kg / 6.21 LBS 2815.6 g / 27.6 N	strong
15 mm	832 Gs 83.2 mT	0.98 kg / 2.16 LBS 979.7 g / 9.6 N	safe
20 mm	512 Gs 51.2 mT	0.37 kg / 0.82 LBS 371.2 g / 3.6 N	safe
30 mm	224 Gs 22.4 mT	0.07 kg / 0.16 LBS 70.7 g / 0.7 N	safe
50 mm	65 Gs 6.5 mT	0.01 kg / 0.01 LBS 6.0 g / 0.1 N	safe

Pulling power drops significantly with every subsequent millimeter of distance. Remember that every additional insulation layer (e.g., dirt, varnish, rust) noticeably diminishes the holding power. Magnets operate most effectively in perfect adhesion; air break weakens the force. See how quickly the parameters plummet, when the product does not touch flatly to the metal substrate. When designing the arrangement, discard additional spacers.

Table 2: Sliding hold (vertical surface)
MPL 30x20x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.91 kg / 8.61 LBS 3906.0 g / 38.3 N
1 mm	Stal (~0.2)	3.40 kg / 7.49 LBS 3396.0 g / 33.3 N
2 mm	Stal (~0.2)	2.89 kg / 6.38 LBS 2894.0 g / 28.4 N
3 mm	Stal (~0.2)	2.42 kg / 5.34 LBS 2424.0 g / 23.8 N
5 mm	Stal (~0.2)	1.64 kg / 3.62 LBS 1642.0 g / 16.1 N
10 mm	Stal (~0.2)	0.56 kg / 1.24 LBS 564.0 g / 5.5 N
15 mm	Stal (~0.2)	0.20 kg / 0.43 LBS 196.0 g / 1.9 N
20 mm	Stal (~0.2)	0.07 kg / 0.16 LBS 74.0 g / 0.7 N
30 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 14.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

The table below defines the theoretical shear load sufficient to start the sliding of the magnet down against a vertical steel wall (assuming typical friction coefficient). This parameter is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 30x20x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.86 kg / 12.92 LBS 5859.0 g / 57.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.91 kg / 8.61 LBS 3906.0 g / 38.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.95 kg / 4.31 LBS 1953.0 g / 19.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.77 kg / 21.53 LBS 9765.0 g / 95.8 N

When placing a element on a vertical plane (e.g., a board), it will maintain just about 1/5 of its nominal power. Gravity as well as a weak degree of grip mean that holders slip faster 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 painted metal, the element will slip down under a significantly smaller weight. Using a rubber layer can drastically improve the result.

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 30x20x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.98 kg / 2.15 LBS 976.5 g / 9.6 N
1 mm	13%	2.44 kg / 5.38 LBS 2441.3 g / 23.9 N
2 mm	25%	4.88 kg / 10.76 LBS 4882.5 g / 47.9 N
3 mm	38%	7.32 kg / 16.15 LBS 7323.8 g / 71.8 N
5 mm	63%	12.21 kg / 26.91 LBS 12206.3 g / 119.7 N
10 mm	100%	19.53 kg / 43.06 LBS 19530.0 g / 191.6 N
11 mm	100%	19.53 kg / 43.06 LBS 19530.0 g / 191.6 N
12 mm	100%	19.53 kg / 43.06 LBS 19530.0 g / 191.6 N

A thin sheet is incapable of absorb the full magnetic flux, which weakens actual performance of the holder. Should you attach a powerful product to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To achieve the maximum of this magnet's potential, you need a suitably thick backing of metal. The saturation effect means that on sheet metal structures (e.g., appliance housings), the magnet shows lower pull force. We suggest choosing the steel cross-section according to the table below.

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 30x20x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	19.53 kg / 43.06 LBS 19530.0 g / 191.6 N	OK
40 °C	-2.2%	19.10 kg / 42.11 LBS 19100.3 g / 187.4 N	OK
60 °C	-4.4%	18.67 kg / 41.16 LBS 18670.7 g / 183.2 N
80 °C	-6.6%	18.24 kg / 40.21 LBS 18241.0 g / 178.9 N
100 °C	-28.8%	13.91 kg / 30.66 LBS 13905.4 g / 136.4 N

Ordinary NdFeB products lose power past the thermal threshold. Avoid high temperatures – excessive heat can permanently demagnetize this magnet. With every degree above norm, the neodymium's power momentarily decreases. Do not use this magnet in hot environments exceeding its operating temperature limit. Ignoring the limit will lead to irreversible degradation of magnetism.

*Engineering note: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) risk losing magnetic properties at lower temperatures than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MPL 30x20x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	51.05 kg / 112.54 LBS 5 124 Gs	7.66 kg / 16.88 LBS 7657 g / 75.1 N	N/A
1 mm	47.76 kg / 105.28 LBS 7 186 Gs	7.16 kg / 15.79 LBS 7163 g / 70.3 N	42.98 kg / 94.76 LBS ~0 Gs
2 mm	44.39 kg / 97.86 LBS 6 928 Gs	6.66 kg / 14.68 LBS 6658 g / 65.3 N	39.95 kg / 88.08 LBS ~0 Gs
3 mm	41.06 kg / 90.52 LBS 6 663 Gs	6.16 kg / 13.58 LBS 6159 g / 60.4 N	36.95 kg / 81.47 LBS ~0 Gs
5 mm	34.68 kg / 76.45 LBS 6 124 Gs	5.20 kg / 11.47 LBS 5202 g / 51.0 N	31.21 kg / 68.81 LBS ~0 Gs
10 mm	21.45 kg / 47.30 LBS 4 817 Gs	3.22 kg / 7.09 LBS 3218 g / 31.6 N	19.31 kg / 42.57 LBS ~0 Gs
20 mm	7.36 kg / 16.22 LBS 2 821 Gs	1.10 kg / 2.43 LBS 1104 g / 10.8 N	6.62 kg / 14.60 LBS ~0 Gs
50 mm	0.40 kg / 0.89 LBS 662 Gs	0.06 kg / 0.13 LBS 61 g / 0.6 N	0.36 kg / 0.80 LBS ~0 Gs
60 mm	0.18 kg / 0.41 LBS 447 Gs	0.03 kg / 0.06 LBS 28 g / 0.3 N	0.17 kg / 0.37 LBS ~0 Gs
70 mm	0.09 kg / 0.20 LBS 314 Gs	0.01 kg / 0.03 LBS 14 g / 0.1 N	0.08 kg / 0.18 LBS ~0 Gs
80 mm	0.05 kg / 0.11 LBS 228 Gs	0.01 kg / 0.02 LBS 7 g / 0.1 N	0.04 kg / 0.10 LBS ~0 Gs
90 mm	0.03 kg / 0.06 LBS 170 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs
100 mm	0.02 kg / 0.03 LBS 130 Gs	0.00 kg / 0.01 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs

Two strong neodymiums interact from a much further distance than a magnet and steel setup. Such a system of two magnets creates a more powerful interaction and a wider radius of performance. Want to build a powerful holder? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the collision energy is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Field value for N-N configuration drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Figures refer to sliding force of dual same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MPL 30x20x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	13.0 cm
Hearing aid	10 Gs (1.0 mT)	10.0 cm
Mechanical watch	20 Gs (2.0 mT)	8.0 cm
Mobile device	40 Gs (4.0 mT)	6.5 cm
Remote	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

A strong magnetic field is a serious hazard to electronics as well as pacemakers. These NdFeB products generate a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field acts through matter and glass. Special caution must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - warning
MPL 30x20x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.82 km/h (6.34 m/s)	0.90 J
30 mm	36.47 km/h (10.13 m/s)	2.31 J
50 mm	46.99 km/h (13.05 m/s)	3.83 J
100 mm	66.44 km/h (18.46 m/s)	7.66 J

Magnetic elements are prone to chipping – a violent impact against metal can result in shattering. Control the attraction moment – a neodymium left loose speeds with massive force. Kinetic force can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the neodymium. Wear eye protection when working with large magnets.

Table 9: Anti-corrosion coating durability
MPL 30x20x10 / 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 SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MPL 30x20x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	22 801 Mx	228.0 µWb
P_c Coefficient	0.46	Low (Flat)

Flux value emitted by the pole surface. Essential parameter for generator designers as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 30x20x10 / N38

Environment	Effective steel pull	Effect
Air (land)	19.53 kg	Standard
Water (riverbed)	22.36 kg (+2.83 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.

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Shear force

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

2. Plate thickness effect

*Thin steel (e.g. computer case) severely weakens the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.46

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 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 specification and ecology

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%

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: 020141-2026

Measurement Calculator

Pulling force

Kilograms (kg)

Newtons (N)

Force in lbs

Field Strength

Induction (T)

Input a figure in a single slot to generate results in all other units immediately.

Check out also offers

Product available Ships tomorrow

MPL 13x10x5 / N35H - lamellar magnet

2.58 ZŁ brutto / pcs

Product available Ships tomorrow

MW 5x25 / N38 - cylindrical magnet

2.31 ZŁ brutto / pcs

Product available Ships tomorrow

UMGZ 25x17x8 [M5] GZ / N38 - magnetic holder external thread

12.23 ZŁ brutto / pcs

Product available Ships tomorrow

UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

300.00 ZŁ brutto / pcs

Model MPL 30x20x10 / N38 features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 191.55 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 30x20x10 / 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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

Plate magnets MPL 30x20x10 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 19.53 kg), they are ideal as closers in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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).

Standardly, the MPL 30x20x10 / N38 model is magnetized axially (dimension 10 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. 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: 30 mm (length), 20 mm (width), and 10 mm (thickness). It is a magnetic block with dimensions 30x20x10 mm and a self-weight of 45 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 Nd₂Fe₁₄B magnets.

Strengths

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:

Their magnetic field remains stable, and after around 10 years it drops only by ~1% (according to research),
They maintain their magnetic properties even under close interference source,
Thanks to the glossy finish, the plating of nickel, gold, or silver-plated gives an aesthetic appearance,
Magnets exhibit huge magnetic induction on the outer side,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
Thanks to freedom in shaping and the capacity to adapt to unusual requirements,
Versatile presence in innovative solutions – they serve a role in HDD drives, electromotive mechanisms, precision medical tools, and industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in compact constructions

Limitations

What to avoid - cons of neodymium magnets: application proposals

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
We suggest a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated shapes.
Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these magnets are able to disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets can be a barrier,

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

The lifting capacity listed is a measurement result conducted under the following configuration:

with the application of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
whose transverse dimension equals approx. 10 mm
with an polished contact surface
without the slightest clearance between the magnet and steel
for force acting at a right angle (in the magnet axis)
in neutral thermal conditions

Practical aspects of lifting capacity – factors

It is worth knowing that the magnet holding will differ influenced by elements below, in order of importance:

Air gap (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, rust or dirt).
Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Steel thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be lost to the other side.
Plate material – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
Thermal environment – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Safety rules for work with neodymium magnets

Flammability

Combustion risk: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

Health Danger

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

This is not a toy

Absolutely keep magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are very dangerous.

Phone sensors

GPS units and smartphones are extremely sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the internal compass in your phone.

Immense force

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

Protect data

Equipment safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).

Maximum temperature

Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. The loss of strength is permanent.

Crushing risk

Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!

Beware of splinters

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

Skin irritation risks

A percentage of the population experience a contact allergy to Ni, which is the common plating for neodymium magnets. Prolonged contact might lead to an allergic reaction. We suggest wear safety gloves.

Important! Looking for details? Check our post: Why are neodymium magnets dangerous?

MPL 30x20x10 / N38 - lamellar magnet

Technical of the product - MPL 30x20x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the assembly - technical parameters

Table 1: Static pull force (pull vs gap) - power drop MPL 30x20x10 / N38

Table 2: Sliding hold (vertical surface) MPL 30x20x10 / N38

Table 3: Vertical assembly (sliding) - vertical pull MPL 30x20x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MPL 30x20x10 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MPL 30x20x10 / N38

Table 6: Two magnets (attraction) - forces in the system MPL 30x20x10 / N38

Table 7: Protective zones (electronics) - warnings MPL 30x20x10 / N38

Table 8: Dynamics (kinetic energy) - warning MPL 30x20x10 / N38

Table 9: Anti-corrosion coating durability MPL 30x20x10 / N38

Table 10: Electrical data (Flux) MPL 30x20x10 / N38

Table 11: Hydrostatics and buoyancy MPL 30x20x10 / N38

1. Shear force

2. Plate thickness effect

3. Thermal stability

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

Material specification

Sustainability

Pulling force

Field Strength

Check out also offers

MPL 13x10x5 / N35H - lamellar magnet

MW 5x25 / N38 - cylindrical magnet

UMGZ 25x17x8 [M5] GZ / N38 - magnetic holder external thread

UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

Pros as well as cons of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Practical aspects of lifting capacity – factors

Safety rules for work with neodymium magnets

Flammability

Health Danger

This is not a toy

Phone sensors

Immense force

Protect data

Maximum temperature

Crushing risk

Beware of splinters

Skin irritation risks

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MPL 30x20x10 / N38

Table 2: Sliding hold (vertical surface)
MPL 30x20x10 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MPL 30x20x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 30x20x10 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 30x20x10 / N38

Table 6: Two magnets (attraction) - forces in the system
MPL 30x20x10 / N38

Table 7: Protective zones (electronics) - warnings
MPL 30x20x10 / N38

Table 8: Dynamics (kinetic energy) - warning
MPL 30x20x10 / N38

Table 9: Anti-corrosion coating durability
MPL 30x20x10 / N38

Table 10: Electrical data (Flux)
MPL 30x20x10 / N38

Table 11: Hydrostatics and buoyancy
MPL 30x20x10 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.