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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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Technical of the product - 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 analysis of the magnet - data

Presented information constitute the outcome of a engineering simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Treat these data as a supplementary guide during assembly planning.

Table 1: Static pull force (force 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	crushing
1 mm	4730 Gs 473.0 mT	20.68 kg / 45.60 lbs 20685.0 g / 202.9 N	crushing
2 mm	4335 Gs 433.5 mT	17.37 kg / 38.30 lbs 17370.7 g / 170.4 N	crushing
3 mm	3950 Gs 395.0 mT	14.43 kg / 31.80 lbs 14425.2 g / 141.5 N	crushing
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	low risk
20 mm	736 Gs 73.6 mT	0.50 kg / 1.10 lbs 500.4 g / 4.9 N	low risk
30 mm	338 Gs 33.8 mT	0.11 kg / 0.23 lbs 105.3 g / 1.0 N	low risk
50 mm	106 Gs 10.6 mT	0.01 kg / 0.02 lbs 10.3 g / 0.1 N	low risk

Magnetic force drops significantly with every mm of gap. Keep in mind that even the smallest gap (e.g., contamination, varnish, veneer) noticeably reduces the pull force. Magnetic products operate optimally in perfect adhesion; distance drastically cuts the force. Notice how rapidly the parameters drop, when the product does not touch flatly to the metal substrate. When calculating the mounting, discard redundant distances.

Table 2: Vertical 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

This section calculates the estimated shear load required to initiate the downward movement of the magnet downwards against a upright steel wall (assuming typical friction coefficient). This parameter varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - 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 hanging a holder on a upright wall (e.g., a fridge), it will only hold barely approx. 20%-30% of its maximum pull force. Gravitational force and a low friction coefficient mean that products slip faster than they pull off. Want to create a vertical fastening? Note that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the holder will give way down under a significantly smaller cargo. Using a rubber pad can significantly raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
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 sheet is not enough to conduct the entire magnetic field, which weakens actual performance of the holder. Should you mount a strong magnet to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To squeeze full efficiency of this magnet's potential, you need a suitably thick element of steel. The saturation effect means that on delicate walls (e.g., appliance housings), the product holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
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

Classic neodymiums lose strength above the temperature limit. Protect against heat – heat can permanently destroy this product. As the temperature rises, the magnet's force momentarily lowers. Avoid using this magnet close to heaters higher than its operating temperature limit. Ignoring the limit will cause destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) are more susceptible to demagnetization at lower temperatures than taller cylinders. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 30x20x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (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 strong neodymiums interact from a wider radius than a magnet and steel setup. Such a system of magnet-to-magnet creates a more powerful interaction and a larger range of action. Designing a solid fastener? Use a pair of magnets instead of a neodymium and a steel. Be careful that when bringing together two magnets, the collision energy is huge. The repulsion force is marginally weaker than the attraction, but still large.
*The magnetic induction in repulsion mode drops to ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Calculations show friction force of a pair of identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
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
Mechanical watch	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 electronics as well as medical implants. These neodymiums generate a flux that destroys function of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
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

NdFeB products are very brittle – a collision with steel causes immediate chipping. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (P_c)
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 as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
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%

Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

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

1. Sliding resistance

*Warning: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) significantly reduces the holding force.

3. Thermal stability

*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) = 0.74

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%

Environmental data

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 020142-2026

Quick Unit Converter

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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 magnetic block with a force of 238.07 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. 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 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 30x20x20 / N38, it is best to use strong epoxy glues (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 clean and degrease 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. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 30x20x20 mm, which, at a weight of 90 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 30x20x20 mm and a self-weight of 90 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

Their power is maintained, and after approximately ten years it decreases only by ~1% (according to research),
They show high resistance to demagnetization induced by external magnetic fields,
Thanks to the glossy finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an elegant appearance,
Magnetic induction on the surface of the magnet remains exceptional,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to freedom in designing and the ability to adapt to individual projects,
Wide application in innovative solutions – they serve a role in mass storage devices, motor assemblies, advanced medical instruments, also modern systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Problematic aspects of neodymium magnets and proposals for their use:

At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding 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 immune to moisture, in case of application outdoors
We recommend casing - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated shapes.
Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these magnets can be problematic in diagnostics medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Magnetic strength at its maximum – what affects it?

The lifting capacity listed is a theoretical maximum value executed under specific, ideal conditions:

with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
whose thickness equals approx. 10 mm
with an polished touching surface
under conditions of gap-free contact (surface-to-surface)
under axial force vector (90-degree angle)
at ambient temperature room level

Key elements affecting lifting force

Bear in mind that the application force may be lower influenced by elements below, starting with the most relevant:

Gap between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of maximum force).
Plate thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped to the other side.
Material type – the best choice is pure iron steel. Stainless steels may have worse magnetic properties.
Plate texture – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was measured by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Safety rules for work with neodymium magnets

Implant safety

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Caution required

Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their force.

Skin irritation risks

Nickel alert: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, immediately stop handling magnets and wear gloves.

Do not give to children

NdFeB magnets are not suitable for play. Swallowing several magnets may result in them pinching intestinal walls, which constitutes a critical condition and necessitates immediate surgery.

Precision electronics

Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Keep a separation from your phone, tablet, and GPS.

Material brittleness

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Pinching danger

Large magnets can break fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Fire risk

Dust generated during machining of magnets is combustible. Do not drill into magnets unless you are an expert.

Do not overheat magnets

Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its properties and strength.

Electronic hazard

Do not bring magnets close to a purse, laptop, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.

Security! Learn more about risks in the article: Magnet Safety Guide.

MPL 30x20x20 / N38 - lamellar magnet

Technical of the product - MPL 30x20x20 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the magnet - data

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

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

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

Table 4: Material efficiency (saturation) - sheet metal selection MPL 30x20x20 / N38

Table 5: Thermal resistance (stability) - thermal limit MPL 30x20x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 30x20x20 / N38

Table 7: Protective zones (electronics) - warnings MPL 30x20x20 / N38

Table 8: Dynamics (cracking risk) - collision effects MPL 30x20x20 / N38

Table 9: Corrosion resistance MPL 30x20x20 / N38

Table 10: Construction data (Pc) MPL 30x20x20 / N38

Table 11: Physics of underwater searching MPL 30x20x20 / N38

1. Sliding resistance

2. Steel saturation

3. Thermal stability

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

Material specification

Environmental data

Force (pull)

Magnetic Induction

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Advantages and disadvantages of Nd2Fe14B magnets.

Advantages

Disadvantages

Holding force characteristics

Magnetic strength at its maximum – what affects it?

Key elements affecting lifting force

Safety rules for work with neodymium magnets

Implant safety

Caution required

Skin irritation risks

Do not give to children

Precision electronics

Material brittleness

Pinching danger

Fire risk

Do not overheat magnets

Electronic hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

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

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 30x20x20 / N38

Table 5: Thermal resistance (stability) - thermal limit
MPL 30x20x20 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 30x20x20 / N38

Table 7: Protective zones (electronics) - warnings
MPL 30x20x20 / N38

Table 8: Dynamics (cracking risk) - collision effects
MPL 30x20x20 / N38

Table 9: Corrosion resistance
MPL 30x20x20 / N38

Table 10: Construction data (P_c)
MPL 30x20x20 / N38

Table 11: Physics of underwater searching
MPL 30x20x20 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.