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MPL 30x20x20 / 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 020142

GTIN/EAN: 5906301811480

5.00

length

30 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

90 g

Magnetization Direction

↑ axial

Load capacity

24.27 kg / 238.07 N

Magnetic Induction

512.53 mT / 5125 Gs

Coating

[NiCuNi] Nickel

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43.22 ZŁ with VAT / pcs + price for transport

35.14 ZŁ net + 23% VAT / pcs

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Weight as well as shape of neodymium magnets can be calculated with our force calculator.

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Physical properties - MPL 30x20x20 / N38 - lamellar magnet

Specification / characteristics - MPL 30x20x20 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020142
GTIN/EAN	5906301811480
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	20 mm [±0,1 mm]
Weight	90 g
Magnetization Direction	↑ axial
Load capacity ~ ?	24.27 kg / 238.07 N
Magnetic Induction ~ ?	512.53 mT / 5125 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 30x20x20 / 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

Physical simulation of the assembly - report

These data are the result of a engineering analysis. Values are based on models for the material Nd₂Fe₁₄B. Real-world conditions might slightly deviate from the simulation results. Treat these calculations as a supplementary guide during assembly planning.

Table 1: Static force (pull vs gap) - characteristics
MPL 30x20x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5124 Gs 512.4 mT	24.27 kg / 53.51 LBS 24270.0 g / 238.1 N	dangerous!
1 mm	4730 Gs 473.0 mT	20.68 kg / 45.60 LBS 20685.0 g / 202.9 N	dangerous!
2 mm	4335 Gs 433.5 mT	17.37 kg / 38.30 LBS 17370.7 g / 170.4 N	dangerous!
3 mm	3950 Gs 395.0 mT	14.43 kg / 31.80 LBS 14425.2 g / 141.5 N	dangerous!
5 mm	3240 Gs 324.0 mT	9.71 kg / 21.40 LBS 9706.2 g / 95.2 N	warning
10 mm	1923 Gs 192.3 mT	3.42 kg / 7.53 LBS 3417.4 g / 33.5 N	warning
15 mm	1163 Gs 116.3 mT	1.25 kg / 2.76 LBS 1250.2 g / 12.3 N	weak grip
20 mm	736 Gs 73.6 mT	0.50 kg / 1.10 LBS 500.4 g / 4.9 N	weak grip
30 mm	338 Gs 33.8 mT	0.11 kg / 0.23 LBS 105.3 g / 1.0 N	weak grip
50 mm	106 Gs 10.6 mT	0.01 kg / 0.02 LBS 10.3 g / 0.1 N	weak grip

Pulling power decreases sharply with every mm of gap. Keep in mind that even a very thin break (e.g., contamination, paint, veneer) noticeably reduces the pull force. Magnetic products work optimally at the point of direct contact; gap weakens the power. Observe how flashily the parameters plummet, when the product does not adhere directly to the steel surface. When planning the assembly, eliminate additional spacers.

Table 2: Sliding hold (vertical surface)
MPL 30x20x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.85 kg / 10.70 LBS 4854.0 g / 47.6 N
1 mm	Stal (~0.2)	4.14 kg / 9.12 LBS 4136.0 g / 40.6 N
2 mm	Stal (~0.2)	3.47 kg / 7.66 LBS 3474.0 g / 34.1 N
3 mm	Stal (~0.2)	2.89 kg / 6.36 LBS 2886.0 g / 28.3 N
5 mm	Stal (~0.2)	1.94 kg / 4.28 LBS 1942.0 g / 19.1 N
10 mm	Stal (~0.2)	0.68 kg / 1.51 LBS 684.0 g / 6.7 N
15 mm	Stal (~0.2)	0.25 kg / 0.55 LBS 250.0 g / 2.5 N
20 mm	Stal (~0.2)	0.10 kg / 0.22 LBS 100.0 g / 1.0 N
30 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 22.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

The table below indicates the approximate force necessary to initiate the sliding of the magnet down against a vertical steel plate (considering typical friction coefficient). This value is relative to the distance between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 30x20x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	7.28 kg / 16.05 LBS 7281.0 g / 71.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.85 kg / 10.70 LBS 4854.0 g / 47.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.43 kg / 5.35 LBS 2427.0 g / 23.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	12.14 kg / 26.75 LBS 12135.0 g / 119.0 N

When mounting a element on a vertical plane (e.g., a board), it you can count on barely about 20%-30% of its maximum pull force. Gravity as well as a weak degree of grip mean that holders move down faster than they pull off. Designing a hanger? Note that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will give way down under a noticeably lighter cargo. Utilizing a rubberized pad can effectively raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 30x20x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.21 kg / 2.68 LBS 1213.5 g / 11.9 N
1 mm	13%	3.03 kg / 6.69 LBS 3033.8 g / 29.8 N
2 mm	25%	6.07 kg / 13.38 LBS 6067.5 g / 59.5 N
3 mm	38%	9.10 kg / 20.06 LBS 9101.3 g / 89.3 N
5 mm	63%	15.17 kg / 33.44 LBS 15168.8 g / 148.8 N
10 mm	100%	24.27 kg / 53.51 LBS 24270.0 g / 238.1 N
11 mm	100%	24.27 kg / 53.51 LBS 24270.0 g / 238.1 N
12 mm	100%	24.27 kg / 53.51 LBS 24270.0 g / 238.1 N

A thin metal plate is not enough to conduct the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a thin surface, the field will penetrate right through and the pull force will drop sharply. To utilize the maximum of this neodymium's potential, you require a sufficiently solid element of steel. The saturation effect causes that on delicate walls (e.g., thin profiles), the product shows lower pull force. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - power drop
MPL 30x20x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	24.27 kg / 53.51 LBS 24270.0 g / 238.1 N	OK
40 °C	-2.2%	23.74 kg / 52.33 LBS 23736.1 g / 232.9 N	OK
60 °C	-4.4%	23.20 kg / 51.15 LBS 23202.1 g / 227.6 N	OK
80 °C	-6.6%	22.67 kg / 49.97 LBS 22668.2 g / 222.4 N
100 °C	-28.8%	17.28 kg / 38.10 LBS 17280.2 g / 169.5 N

Standard neodymium magnets change their properties parameters past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly destroy this magnet. With increasing heat, the magnet's force temporarily drops. Do not use this product close to ovens higher than its safe range. Too high temperature will lead to permanent loss of magnetic properties.

*Engineering note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress compared to rod magnets. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 30x20x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	97.11 kg / 214.09 LBS 5 859 Gs	14.57 kg / 32.11 LBS 14567 g / 142.9 N	N/A
1 mm	89.88 kg / 198.15 LBS 9 859 Gs	13.48 kg / 29.72 LBS 13482 g / 132.3 N	80.89 kg / 178.34 LBS ~0 Gs
2 mm	82.77 kg / 182.47 LBS 9 461 Gs	12.42 kg / 27.37 LBS 12415 g / 121.8 N	74.49 kg / 164.22 LBS ~0 Gs
3 mm	75.96 kg / 167.47 LBS 9 063 Gs	11.39 kg / 25.12 LBS 11394 g / 111.8 N	68.37 kg / 150.72 LBS ~0 Gs
5 mm	63.42 kg / 139.81 LBS 8 281 Gs	9.51 kg / 20.97 LBS 9513 g / 93.3 N	57.08 kg / 125.83 LBS ~0 Gs
10 mm	38.84 kg / 85.62 LBS 6 481 Gs	5.83 kg / 12.84 LBS 5826 g / 57.1 N	34.95 kg / 77.06 LBS ~0 Gs
20 mm	13.67 kg / 30.15 LBS 3 845 Gs	2.05 kg / 4.52 LBS 2051 g / 20.1 N	12.31 kg / 27.13 LBS ~0 Gs
50 mm	0.88 kg / 1.94 LBS 976 Gs	0.13 kg / 0.29 LBS 132 g / 1.3 N	0.79 kg / 1.75 LBS ~0 Gs
60 mm	0.42 kg / 0.93 LBS 675 Gs	0.06 kg / 0.14 LBS 63 g / 0.6 N	0.38 kg / 0.84 LBS ~0 Gs
70 mm	0.22 kg / 0.48 LBS 484 Gs	0.03 kg / 0.07 LBS 33 g / 0.3 N	0.20 kg / 0.43 LBS ~0 Gs
80 mm	0.12 kg / 0.26 LBS 358 Gs	0.02 kg / 0.04 LBS 18 g / 0.2 N	0.11 kg / 0.24 LBS ~0 Gs
90 mm	0.07 kg / 0.15 LBS 272 Gs	0.01 kg / 0.02 LBS 10 g / 0.1 N	0.06 kg / 0.14 LBS ~0 Gs
100 mm	0.04 kg / 0.09 LBS 211 Gs	0.01 kg / 0.01 LBS 6 g / 0.1 N	0.04 kg / 0.08 LBS ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. The setup of two magnets produces a massive flux and a larger range of performance. Want to build a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the impact force is extreme. The levitation is marginally weaker than the attraction, but still significant.
*Flux density for N-N configuration is approximately ~0 Gs in the exact middle between the magnets (due to field cancellation).
* Figures show shear force of a pair of identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 30x20x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	16.0 cm
Hearing aid	10 Gs (1.0 mT)	12.5 cm
Timepiece	20 Gs (2.0 mT)	10.0 cm
Mobile device	40 Gs (4.0 mT)	7.5 cm
Remote	50 Gs (5.0 mT)	7.0 cm
Payment card	400 Gs (40.0 mT)	3.0 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

Extremely neodym field poses a real danger to IT equipment and pacemakers. These NdFeB products generate a field that prevents correct functioning of digital equipment. Be aware: the invisible magnetic field passes through tissues and housings. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MPL 30x20x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	17.96 km/h (4.99 m/s)	1.12 J
30 mm	28.76 km/h (7.99 m/s)	2.87 J
50 mm	37.04 km/h (10.29 m/s)	4.76 J
100 mm	52.37 km/h (14.55 m/s)	9.52 J

Magnetic elements are delicate – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or painful pinches to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when working with powerful specimens.

Table 9: Corrosion resistance
MPL 30x20x20 / 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: Electrical data (Flux)
MPL 30x20x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	30 878 Mx	308.8 µWb
P_c Coefficient	0.74	High (Stable)

Total magnetic flux emitted by the pole surface. Key data when building generators and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
MPL 30x20x20 / N38

Environment	Effective steel pull	Effect
Air (land)	24.27 kg	Standard
Water (riverbed)	27.79 kg (+3.52 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!

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Warning: On a vertical wall, the magnet retains just approx. 20-30% of its nominal pull.

2. Steel thickness impact

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

3. Thermal stability

*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) = 0.74

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

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%

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: 020142-2026

Measurement Calculator

Force (pull)

Newtons (N)

Pounds (lbs)

Field Strength

Induction (T)

Put a figure in just one field to see the conversion for all other units immediately.

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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 30x20x20 mm and a weight of 90 g, guarantees premium class connection. This rectangular block with a force of 238.07 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

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 30x20x20 / 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 30x20x20 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

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 30x20x20 / N38 model is magnetized through the thickness (dimension 20 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 20 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 24.27 kg (force ~238.07 N), which, with such a flat shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
Magnets effectively protect themselves against loss of magnetization caused by external fields,
A magnet with a metallic silver surface is more attractive,
The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of accurate creating as well as optimizing to complex needs,
Fundamental importance in innovative solutions – they find application in HDD drives, drive modules, medical devices, and other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets and ways of using them

At strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing nuts and complex shapes in magnets, we propose using casing - magnetic mount.
Potential hazard related to microscopic parts of magnets are risky, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these products can disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Maximum holding power of the magnet – what affects it?

Holding force of 24.27 kg is a theoretical maximum value executed under standard conditions:

with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
whose transverse dimension reaches at least 10 mm
with a plane perfectly flat
with total lack of distance (no impurities)
for force applied at a right angle (pull-off, not shear)
in neutral thermal conditions

Determinants of practical lifting force of a magnet

In real-world applications, the actual holding force results from a number of factors, listed from the most important:

Distance (between the magnet and the metal), since even a very small distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to paint, corrosion or debris).
Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
Wall 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.
Material composition – different alloys attracts identically. High carbon content worsen the attraction effect.
Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate decreases the holding force.

Precautions when working with NdFeB magnets

Combustion hazard

Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Danger to the youngest

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

Handling rules

Use magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and respect their force.

Allergic reactions

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If redness occurs, cease handling magnets and wear gloves.

Protective goggles

NdFeB magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.

Pinching danger

Big blocks can crush fingers instantly. Under no circumstances put your hand betwixt two strong magnets.

Magnetic media

Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Stay away of at least 10 cm.

Thermal limits

Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Keep away from electronics

An intense magnetic field negatively affects the functioning of compasses in smartphones and navigation systems. Maintain magnets near a smartphone to avoid breaking the sensors.

Health Danger

Patients with a heart stimulator have to maintain an large gap from magnets. The magnetism can stop the operation of the life-saving device.

Important! Learn more about risks in the article: Safety of working with magnets.

MPL 30x20x20 / N38 - lamellar magnet

Physical properties - MPL 30x20x20 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - report

Table 1: Static force (pull vs gap) - characteristics MPL 30x20x20 / N38

Table 2: Sliding hold (vertical surface) MPL 30x20x20 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MPL 30x20x20 / N38

Table 4: Steel thickness (saturation) - power losses MPL 30x20x20 / N38

Table 5: Thermal resistance (material behavior) - power drop MPL 30x20x20 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 30x20x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MPL 30x20x20 / N38

Table 8: Impact energy (cracking risk) - warning MPL 30x20x20 / N38

Table 9: Corrosion resistance MPL 30x20x20 / N38

Table 10: Electrical data (Flux) MPL 30x20x20 / N38

Table 11: Submerged application MPL 30x20x20 / N38

1. Shear force

2. Steel thickness impact

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Field Strength

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Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Cons

Lifting parameters

Maximum holding power of the magnet – what affects it?

Determinants of practical lifting force of a magnet

Precautions when working with NdFeB magnets

Combustion hazard

Danger to the youngest

Handling rules

Allergic reactions

Protective goggles

Pinching danger

Magnetic media

Thermal limits

Keep away from electronics

Health Danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MPL 30x20x20 / N38

Table 2: Sliding hold (vertical surface)
MPL 30x20x20 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 30x20x20 / N38

Table 4: Steel thickness (saturation) - power losses
MPL 30x20x20 / N38

Table 5: Thermal resistance (material behavior) - power drop
MPL 30x20x20 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 30x20x20 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 30x20x20 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 30x20x20 / N38

Table 9: Corrosion resistance
MPL 30x20x20 / N38

Table 10: Electrical data (Flux)
MPL 30x20x20 / N38

Table 11: Submerged application
MPL 30x20x20 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.