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MPL 30x20x10 / 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

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

check properties »

16.11 ZŁ with VAT / pcs + price for transport

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Technical - 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

Engineering modeling of the product - data

Presented information constitute the outcome of a engineering calculation. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly deviate from the simulation results. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static force (force vs gap) - characteristics
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 pounds 19530.0 g / 191.6 N	dangerous!
1 mm	3464 Gs 346.4 mT	16.98 kg / 37.44 pounds 16983.1 g / 166.6 N	dangerous!
2 mm	3197 Gs 319.7 mT	14.47 kg / 31.89 pounds 14466.6 g / 141.9 N	dangerous!
3 mm	2927 Gs 292.7 mT	12.12 kg / 26.73 pounds 12123.3 g / 118.9 N	dangerous!
5 mm	2408 Gs 240.8 mT	8.21 kg / 18.10 pounds 8207.8 g / 80.5 N	strong
10 mm	1411 Gs 141.1 mT	2.82 kg / 6.21 pounds 2815.6 g / 27.6 N	strong
15 mm	832 Gs 83.2 mT	0.98 kg / 2.16 pounds 979.7 g / 9.6 N	safe
20 mm	512 Gs 51.2 mT	0.37 kg / 0.82 pounds 371.2 g / 3.6 N	safe
30 mm	224 Gs 22.4 mT	0.07 kg / 0.16 pounds 70.7 g / 0.7 N	safe
50 mm	65 Gs 6.5 mT	0.01 kg / 0.01 pounds 6.0 g / 0.1 N	safe

Pulling power drops significantly with every subsequent millimeter of spacing. Keep in mind that even the smallest gap (e.g., dirt, paint, rust) significantly reduces the pull force. Neodymiums operate strongest at the point of direct contact; distance kills the force. Analyze how flashily the parameters fall, when the magnet does not touch tightly to the metal substrate. When planning the assembly, avoid redundant distances.

Table 2: Sliding load (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 pounds 3906.0 g / 38.3 N
1 mm	Stal (~0.2)	3.40 kg / 7.49 pounds 3396.0 g / 33.3 N
2 mm	Stal (~0.2)	2.89 kg / 6.38 pounds 2894.0 g / 28.4 N
3 mm	Stal (~0.2)	2.42 kg / 5.34 pounds 2424.0 g / 23.8 N
5 mm	Stal (~0.2)	1.64 kg / 3.62 pounds 1642.0 g / 16.1 N
10 mm	Stal (~0.2)	0.56 kg / 1.24 pounds 564.0 g / 5.5 N
15 mm	Stal (~0.2)	0.20 kg / 0.43 pounds 196.0 g / 1.9 N
20 mm	Stal (~0.2)	0.07 kg / 0.16 pounds 74.0 g / 0.7 N
30 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 14.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N

This section defines the approximate weight limit sufficient to cause the shifting of the magnet downwards against a vertical steel wall (considering typical friction). This value is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
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 pounds 5859.0 g / 57.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.91 kg / 8.61 pounds 3906.0 g / 38.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.95 kg / 4.31 pounds 1953.0 g / 19.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.77 kg / 21.53 pounds 9765.0 g / 95.8 N

When mounting a element on a upright plane (e.g., a car body), it will only hold just approx. 1/5 of its maximum pull force. Gravity as well as a low friction coefficient cause that holders slide down easier than they pull off. Designing a hanger? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the magnet will give way down under a significantly smaller load. Utilizing a rubberized layer can drastically increase the grip.

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 pounds 976.5 g / 9.6 N
1 mm	13%	2.44 kg / 5.38 pounds 2441.3 g / 23.9 N
2 mm	25%	4.88 kg / 10.76 pounds 4882.5 g / 47.9 N
3 mm	38%	7.32 kg / 16.15 pounds 7323.8 g / 71.8 N
5 mm	63%	12.21 kg / 26.91 pounds 12206.3 g / 119.7 N
10 mm	100%	19.53 kg / 43.06 pounds 19530.0 g / 191.6 N
11 mm	100%	19.53 kg / 43.06 pounds 19530.0 g / 191.6 N
12 mm	100%	19.53 kg / 43.06 pounds 19530.0 g / 191.6 N

A thin sheet is incapable of focus the entire magnetic field, which weakens actual performance of the holder. If you attach a powerful product to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To squeeze the maximum of this magnet's potential, you require a sufficiently solid backing of steel. The material oversaturation means that on sheet metal structures (e.g., appliance housings), the magnet holds weaker. We recommend selecting the steel thickness according to the table below.

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

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

Ordinary NdFeB products irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's force briefly decreases. Refrain from using this magnet near heat sources higher than its working range. Exceeding the critical threshold will cause destruction of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 30x20x10 / N38

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

Two magnetic products interact from a wider radius than a magnet and sheet setup. Such a system of two magnets creates a more powerful interaction and a wider radius 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 impact force is massive. The levitation is marginally weaker than the attraction, but still significant.
*Field value for N-N configuration is approximately ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
Note: Estimates apply to sliding force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - 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
Timepiece	20 Gs (2.0 mT)	8.0 cm
Phone / Smartphone	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

Powerful magnet radiation is a serious hazard to electronic devices as well as pacemakers. These magnets generate a flux that disrupts operation of digital equipment. Remember: the unseen radiation penetrates the body and glass. Special caution must be exercised by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (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 strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely becomes dangerous. Kinetic force can cause material chips or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when playing 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (P_c)
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 passing through the pole surface. Key data for generator designers as well as sensors. The P_c coefficient determines 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%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Caution: On a vertical surface, the magnet holds just ~20% of its nominal pull.

2. Plate thickness effect

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

3. Temperature resistance

*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) = 0.46

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 specification and ecology

Elemental analysis

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%

Ecology and recycling (GPSR)

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

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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 30x20x10 mm and a weight of 45 g, guarantees the highest quality connection. As a magnetic bar with high power (approx. 19.53 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

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 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.

They constitute a key element in the production of generators and material handling systems. 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 30x20x10 / N38, we recommend utilizing 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. 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. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

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 protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of neodymium magnets.

Pros

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

They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
They have excellent resistance to magnetism drop when exposed to opposing magnetic fields,
By covering with a reflective layer of gold, the element acquires an modern look,
Magnets are distinguished by huge magnetic induction on the surface,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Due to the potential of free forming and customization to unique solutions, neodymium magnets can be created in a broad palette of shapes and sizes, which expands the range of possible applications,
Versatile presence in innovative solutions – they are utilized in magnetic memories, motor assemblies, precision medical tools, as well as technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals

At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
We suggest cover - magnetic holder, due to difficulties in producing nuts inside the magnet and complex shapes.
Possible danger to health – tiny shards of magnets are risky, if swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products can complicate diagnosis medical when they are in the body.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Breakaway force is the result of a measurement for ideal contact conditions, including:

with the application of a sheet made of special test steel, guaranteeing maximum field concentration
whose thickness is min. 10 mm
with an ideally smooth touching surface
without any clearance between the magnet and steel
during pulling in a direction vertical to the mounting surface
at room temperature

Determinants of practical lifting force of a magnet

Effective lifting capacity impacted by specific conditions, including (from most important):

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.
Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
Metal type – different alloys reacts the same. Alloy additives weaken the attraction effect.
Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Roughness creates an air distance.
Temperature – heating the magnet causes a temporary drop of induction. Check 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, however under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the holding force.

Safety rules for work with NdFeB magnets

Respect the power

Exercise caution. Neodymium magnets attract from a long distance and snap with massive power, often quicker than you can react.

Cards and drives

Avoid bringing magnets near a wallet, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Choking Hazard

Only for adults. Small elements pose a choking risk, leading to intestinal necrosis. Keep out of reach of kids and pets.

Magnet fragility

Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

ICD Warning

For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.

GPS and phone interference

Note: rare earth magnets generate a field that interferes with precision electronics. Maintain a safe distance from your mobile, tablet, and GPS.

Thermal limits

Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Machining danger

Mechanical processing of NdFeB material carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Allergy Warning

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation appears, cease working with magnets and use protective gear.

Crushing force

Watch your fingers. Two powerful magnets will join immediately with a force of massive weight, destroying anything in their path. Be careful!

Warning! Looking for details? Check our post: Are neodymium magnets dangerous?

MPL 30x20x10 / N38 - lamellar magnet

Technical - MPL 30x20x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - data

Table 1: Static force (force vs gap) - characteristics MPL 30x20x10 / N38

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 30x20x10 / N38

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

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

Table 6: Magnet-Magnet interaction (repulsion) - field collision MPL 30x20x10 / N38

Table 7: Hazards (implants) - warnings MPL 30x20x10 / N38

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

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

Table 10: Construction data (Pc) MPL 30x20x10 / N38

Table 11: Hydrostatics and buoyancy MPL 30x20x10 / N38

1. Vertical hold

2. Plate thickness effect

3. Temperature resistance

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Field Strength

See also products

MW 25x2.5 / N38 - cylindrical magnet

HH 25x7.7 [M5] / N38 - through hole magnetic holder

MPL 12x10x4 / N38 - lamellar magnet

MPL 40x10x5x2[7/3.5] / N38 - lamellar magnet

Strengths as well as weaknesses of neodymium magnets.

Pros

Weaknesses

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Determinants of practical lifting force of a magnet

Safety rules for work with NdFeB magnets

Respect the power

Cards and drives

Choking Hazard

Magnet fragility

ICD Warning

GPS and phone interference

Thermal limits

Machining danger

Allergy Warning

Crushing force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MPL 30x20x10 / N38

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 30x20x10 / N38

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

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

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 30x20x10 / N38

Table 7: Hazards (implants) - warnings
MPL 30x20x10 / N38

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

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

Table 10: Construction data (P_c)
MPL 30x20x10 / N38

Table 11: Hydrostatics and buoyancy
MPL 30x20x10 / N38