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MPL 30x20x4 / 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 020286

GTIN/EAN: 5906301811848

length

30 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

18 g

Magnetization Direction

↑ axial

Load capacity

6.30 kg / 61.84 N

Magnetic Induction

180.57 mT / 1806 Gs

Coating

[NiCuNi] Nickel

product parameters »

10.23 ZŁ with VAT / pcs + price for transport

8.32 ZŁ net + 23% VAT / pcs

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Technical details - MPL 30x20x4 / N38 - lamellar magnet

Specification / characteristics - MPL 30x20x4 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020286
GTIN/EAN	5906301811848
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	4 mm [±0,1 mm]
Weight	18 g
Magnetization Direction	↑ axial
Load capacity ~ ?	6.30 kg / 61.84 N
Magnetic Induction ~ ?	180.57 mT / 1806 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 30x20x4 / 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 analysis of the product - technical parameters

The following data are the outcome of a mathematical analysis. Values rely on models for the class Nd₂Fe₁₄B. Operational performance might slightly differ from theoretical values. Use these data as a reference point when designing systems.

Table 1: Static pull force (force vs distance) - characteristics
MPL 30x20x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1805 Gs 180.5 mT	6.30 kg / 13.89 LBS 6300.0 g / 61.8 N	medium risk
1 mm	1728 Gs 172.8 mT	5.77 kg / 12.72 LBS 5771.5 g / 56.6 N	medium risk
2 mm	1628 Gs 162.8 mT	5.13 kg / 11.30 LBS 5125.7 g / 50.3 N	medium risk
3 mm	1515 Gs 151.5 mT	4.43 kg / 9.78 LBS 4434.6 g / 43.5 N	medium risk
5 mm	1271 Gs 127.1 mT	3.12 kg / 6.89 LBS 3124.3 g / 30.6 N	medium risk
10 mm	751 Gs 75.1 mT	1.09 kg / 2.40 LBS 1088.7 g / 10.7 N	safe
15 mm	435 Gs 43.5 mT	0.37 kg / 0.81 LBS 366.3 g / 3.6 N	safe
20 mm	262 Gs 26.2 mT	0.13 kg / 0.29 LBS 132.6 g / 1.3 N	safe
30 mm	110 Gs 11.0 mT	0.02 kg / 0.05 LBS 23.2 g / 0.2 N	safe
50 mm	30 Gs 3.0 mT	0.00 kg / 0.00 LBS 1.8 g / 0.0 N	safe

Grip strength weakens significantly per each millimeter of spacing. Note that even the smallest gap (e.g., dirt, varnish, rust) strongly reduces the pull force. Magnets operate strongest at the point of direct contact; air break kills the power. Analyze how flashily the load capacity drop, when the product does not adhere tightly to the steel surface. When calculating the mounting, avoid redundant distances.

Table 2: Vertical load (vertical surface)
MPL 30x20x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.26 kg / 2.78 LBS 1260.0 g / 12.4 N
1 mm	Stal (~0.2)	1.15 kg / 2.54 LBS 1154.0 g / 11.3 N
2 mm	Stal (~0.2)	1.03 kg / 2.26 LBS 1026.0 g / 10.1 N
3 mm	Stal (~0.2)	0.89 kg / 1.95 LBS 886.0 g / 8.7 N
5 mm	Stal (~0.2)	0.62 kg / 1.38 LBS 624.0 g / 6.1 N
10 mm	Stal (~0.2)	0.22 kg / 0.48 LBS 218.0 g / 2.1 N
15 mm	Stal (~0.2)	0.07 kg / 0.16 LBS 74.0 g / 0.7 N
20 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 26.0 g / 0.3 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

This section indicates the approximate force sufficient to start the downward movement of the magnet downwards on a upright steel wall (considering typical friction coefficient). This value varies with the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 30x20x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.89 kg / 4.17 LBS 1890.0 g / 18.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.26 kg / 2.78 LBS 1260.0 g / 12.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.63 kg / 1.39 LBS 630.0 g / 6.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.15 kg / 6.94 LBS 3150.0 g / 30.9 N

When mounting a magnet on a upright wall (e.g., a board), it you can count on barely approx. 1/5 of its maximum pull force. Gravity and a low friction coefficient mean that products move down easier than they pull off. Designing a wall mount? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a much lighter cargo. Using a rubber pad can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 30x20x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.63 kg / 1.39 LBS 630.0 g / 6.2 N
1 mm	25%	1.58 kg / 3.47 LBS 1575.0 g / 15.5 N
2 mm	50%	3.15 kg / 6.94 LBS 3150.0 g / 30.9 N
3 mm	75%	4.73 kg / 10.42 LBS 4725.0 g / 46.4 N
5 mm	100%	6.30 kg / 13.89 LBS 6300.0 g / 61.8 N
10 mm	100%	6.30 kg / 13.89 LBS 6300.0 g / 61.8 N
11 mm	100%	6.30 kg / 13.89 LBS 6300.0 g / 61.8 N
12 mm	100%	6.30 kg / 13.89 LBS 6300.0 g / 61.8 N

A thin sheet is unable to take in the full magnetic flux, which squanders power of the holder. If you mount a strong magnet to a too thin substrate, the flux will pass right through and the holding will be smaller. To utilize the maximum of this magnet's power, you require a sufficiently solid piece of metal. The saturation phenomenon means that on thin elements (e.g., thin profiles), the holder holds weaker. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal resistance (stability) - thermal limit
MPL 30x20x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	6.30 kg / 13.89 LBS 6300.0 g / 61.8 N	OK
40 °C	-2.2%	6.16 kg / 13.58 LBS 6161.4 g / 60.4 N	OK
60 °C	-4.4%	6.02 kg / 13.28 LBS 6022.8 g / 59.1 N
80 °C	-6.6%	5.88 kg / 12.97 LBS 5884.2 g / 57.7 N
100 °C	-28.8%	4.49 kg / 9.89 LBS 4485.6 g / 44.0 N

Standard neodymium magnets change their properties power past the thermal threshold. Avoid high temperatures – high temperature can permanently destroy this product. With increasing heat, the magnet's capacity momentarily decreases. Refrain from using this magnet close to heaters higher than its operating temperature limit. Too high temperature will lead to irreversible degradation of magnetic properties.

*Technical advisory: Thermal stability depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (pancake types) are more susceptible to demagnetization sooner than long magnets. Warning indicator in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 30x20x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.06 kg / 26.58 LBS 3 198 Gs	1.81 kg / 3.99 LBS 1809 g / 17.7 N	N/A
1 mm	11.59 kg / 25.55 LBS 3 540 Gs	1.74 kg / 3.83 LBS 1739 g / 17.1 N	10.43 kg / 23.00 LBS ~0 Gs
2 mm	11.05 kg / 24.35 LBS 3 456 Gs	1.66 kg / 3.65 LBS 1657 g / 16.3 N	9.94 kg / 21.92 LBS ~0 Gs
3 mm	10.45 kg / 23.03 LBS 3 361 Gs	1.57 kg / 3.45 LBS 1567 g / 15.4 N	9.40 kg / 20.73 LBS ~0 Gs
5 mm	9.15 kg / 20.18 LBS 3 146 Gs	1.37 kg / 3.03 LBS 1373 g / 13.5 N	8.24 kg / 18.16 LBS ~0 Gs
10 mm	5.98 kg / 13.18 LBS 2 543 Gs	0.90 kg / 1.98 LBS 897 g / 8.8 N	5.38 kg / 11.86 LBS ~0 Gs
20 mm	2.08 kg / 4.59 LBS 1 501 Gs	0.31 kg / 0.69 LBS 313 g / 3.1 N	1.88 kg / 4.13 LBS ~0 Gs
50 mm	0.10 kg / 0.22 LBS 331 Gs	0.02 kg / 0.03 LBS 15 g / 0.1 N	0.09 kg / 0.20 LBS ~0 Gs
60 mm	0.04 kg / 0.10 LBS 219 Gs	0.01 kg / 0.01 LBS 7 g / 0.1 N	0.04 kg / 0.09 LBS ~0 Gs
70 mm	0.02 kg / 0.05 LBS 151 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.04 LBS ~0 Gs
80 mm	0.01 kg / 0.02 LBS 108 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs
90 mm	0.01 kg / 0.01 LBS 80 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.01 LBS 60 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets attract each other from a wider radius than a neodymium and metal combination. Such a system of two magnets creates a more powerful interaction and a further horizon of operation. Designing a solid fastener? Utilize two neodymiums instead of one magnet and a steel. Remember that when bringing together two magnets, the pinch force is massive. The levitation is marginally weaker than the attraction, but still large.
*Flux density for N-N configuration is approximately ~0 Gs at the geometric center between the magnets (due to field cancellation).
* Figures show sliding force of two same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (electronics) - warnings
MPL 30x20x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.0 cm
Hearing aid	10 Gs (1.0 mT)	7.5 cm
Timepiece	20 Gs (2.0 mT)	6.0 cm
Mobile device	40 Gs (4.0 mT)	4.5 cm
Remote	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation is a large risk to electronics as well as medical implants. These NdFeB products generate a flux that destroys function of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MPL 30x20x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.81 km/h (5.78 m/s)	0.30 J
30 mm	32.75 km/h (9.10 m/s)	0.75 J
50 mm	42.20 km/h (11.72 m/s)	1.24 J
100 mm	59.66 km/h (16.57 m/s)	2.47 J

Neodymium magnets are very brittle – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Impact energy can destroy the magnet or injury to fingers. Hold the magnet firmly during mounting so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Corrosion resistance
MPL 30x20x4 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MPL 30x20x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	12 775 Mx	127.8 µWb
P_c Coefficient	0.22	Low (Flat)

Flux value passing through the pole surface. Essential parameter for generator designers and motors. P_c value determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 30x20x4 / N38

Environment	Effective steel pull	Effect
Air (land)	6.30 kg	Standard
Water (riverbed)	7.21 kg (+0.91 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.

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

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

2. Steel thickness impact

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.22

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 and environmental data

Chemical composition

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Sustainability

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 020286-2026

Quick Unit Converter

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Force in kg

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Model MPL 30x20x4 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. As a magnetic bar with high power (approx. 6.30 kg), this product is available off-the-shelf from our warehouse in Poland. 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 30x20x4 / 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 30x20x4 / 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 30x20x4 / 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.

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (30x20 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: 30 mm (length), 20 mm (width), and 4 mm (thickness). It is a magnetic block with dimensions 30x20x4 mm and a self-weight of 18 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of rare earth magnets.

Benefits

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
Neodymium magnets are exceptionally resistant to loss of magnetic properties caused by external interference,
Thanks to the reflective finish, the layer of nickel, gold, or silver gives an modern appearance,
Magnetic induction on the working layer of the magnet turns out to be exceptional,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
Thanks to freedom in forming and the capacity to modify to specific needs,
Wide application in future technologies – they find application in mass storage devices, electric motors, diagnostic systems, as well as modern systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises their durability
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
We suggest casing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated shapes.
Health risk related to microscopic parts of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Detachment force of the magnet in optimal conditions – what it depends on?

Holding force of 6.30 kg is a measurement result conducted under standard conditions:

using a plate made of mild steel, serving as a circuit closing element
with a thickness of at least 10 mm
with an polished touching surface
under conditions of ideal adhesion (surface-to-surface)
under axial force vector (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

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

Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
Load vector – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Metal type – not every steel reacts the same. Alloy additives worsen the attraction effect.
Surface quality – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.

Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under shearing force the holding force is lower. In addition, even a slight gap between the magnet and the plate reduces the load capacity.

H&S for magnets

Thermal limits

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

Fire warning

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

Keep away from computers

Avoid bringing magnets close to a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Finger safety

Big blocks can smash fingers instantly. Do not place your hand between two attracting surfaces.

Handling guide

Exercise caution. Neodymium magnets act from a long distance and snap with huge force, often faster than you can react.

This is not a toy

Always store magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are very dangerous.

Protective goggles

NdFeB magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them cracking into shards.

Pacemakers

People with a pacemaker have to keep an safe separation from magnets. The magnetic field can interfere with the functioning of the life-saving device.

Allergic reactions

Studies show that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, prevent direct skin contact and select versions in plastic housing.

GPS and phone interference

GPS units and smartphones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Safety First! Need more info? Check our post: Why are neodymium magnets dangerous?

MPL 30x20x4 / N38 - lamellar magnet

Technical details - MPL 30x20x4 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - technical parameters

Table 1: Static pull force (force vs distance) - characteristics MPL 30x20x4 / N38

Table 2: Vertical load (vertical surface) MPL 30x20x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull MPL 30x20x4 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 30x20x4 / N38

Table 5: Thermal resistance (stability) - thermal limit MPL 30x20x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MPL 30x20x4 / N38

Table 7: Safety (HSE) (electronics) - warnings MPL 30x20x4 / N38

Table 8: Impact energy (kinetic energy) - warning MPL 30x20x4 / N38

Table 9: Corrosion resistance MPL 30x20x4 / N38

Table 10: Construction data (Pc) MPL 30x20x4 / N38

Table 11: Hydrostatics and buoyancy MPL 30x20x4 / N38

1. Vertical hold

2. Steel thickness impact

3. Heat tolerance

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

Chemical composition

Sustainability

Force (pull)

Magnetic Induction

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Advantages and disadvantages of rare earth magnets.

Benefits

Cons

Lifting parameters

Detachment force of the magnet in optimal conditions – what it depends on?

Determinants of lifting force in real conditions

H&S for magnets

Thermal limits

Fire warning

Keep away from computers

Finger safety

Handling guide

This is not a toy

Protective goggles

Pacemakers

Allergic reactions

GPS and phone interference

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MPL 30x20x4 / N38

Table 2: Vertical load (vertical surface)
MPL 30x20x4 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MPL 30x20x4 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 30x20x4 / N38

Table 5: Thermal resistance (stability) - thermal limit
MPL 30x20x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 30x20x4 / N38

Table 7: Safety (HSE) (electronics) - warnings
MPL 30x20x4 / N38

Table 8: Impact energy (kinetic energy) - warning
MPL 30x20x4 / N38

Table 9: Corrosion resistance
MPL 30x20x4 / N38

Table 10: Construction data (P_c)
MPL 30x20x4 / N38

Table 11: Hydrostatics and buoyancy
MPL 30x20x4 / N38