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MPL 20x10x5 / 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 020128

GTIN/EAN: 5906301811343

5.00

length

20 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

7.5 g

Magnetization Direction

↑ axial

Load capacity

6.15 kg / 60.31 N

Magnetic Induction

349.47 mT / 3495 Gs

Coating

[NiCuNi] Nickel

see technical data »

4.54 ZŁ with VAT / pcs + price for transport

3.69 ZŁ net + 23% VAT / pcs

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Detailed specification - MPL 20x10x5 / N38 - lamellar magnet

Specification / characteristics - MPL 20x10x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020128
GTIN/EAN	5906301811343
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	20 mm [±0,1 mm]
Width	10 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	7.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	6.15 kg / 60.31 N
Magnetic Induction ~ ?	349.47 mT / 3495 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x10x5 / 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 assembly - report

Presented values represent the result of a physical simulation. Values rely on algorithms for the material Nd₂Fe₁₄B. Operational conditions might slightly differ from theoretical values. Treat these data as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs distance) - characteristics
MPL 20x10x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3493 Gs 349.3 mT	6.15 kg / 13.56 pounds 6150.0 g / 60.3 N	strong
1 mm	3035 Gs 303.5 mT	4.64 kg / 10.23 pounds 4641.8 g / 45.5 N	strong
2 mm	2558 Gs 255.8 mT	3.30 kg / 7.27 pounds 3298.0 g / 32.4 N	strong
3 mm	2120 Gs 212.0 mT	2.26 kg / 4.99 pounds 2264.8 g / 22.2 N	strong
5 mm	1433 Gs 143.3 mT	1.03 kg / 2.28 pounds 1034.5 g / 10.1 N	low risk
10 mm	574 Gs 57.4 mT	0.17 kg / 0.37 pounds 166.1 g / 1.6 N	low risk
15 mm	267 Gs 26.7 mT	0.04 kg / 0.08 pounds 35.9 g / 0.4 N	low risk
20 mm	141 Gs 14.1 mT	0.01 kg / 0.02 pounds 10.1 g / 0.1 N	low risk
30 mm	52 Gs 5.2 mT	0.00 kg / 0.00 pounds 1.4 g / 0.0 N	low risk
50 mm	13 Gs 1.3 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	low risk

Grip strength drops sharply with every mm of spacing. Remember that even a microscopic distance (e.g., dirt, paint, rust) noticeably diminishes the holding power. Magnets work optimally at the point of direct contact; air break kills the force. See how flashily the pull force fall, when the product does not adhere tightly to the metal substrate. When calculating the mounting, avoid redundant distances.

Table 2: Vertical force (vertical surface)
MPL 20x10x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.23 kg / 2.71 pounds 1230.0 g / 12.1 N
1 mm	Stal (~0.2)	0.93 kg / 2.05 pounds 928.0 g / 9.1 N
2 mm	Stal (~0.2)	0.66 kg / 1.46 pounds 660.0 g / 6.5 N
3 mm	Stal (~0.2)	0.45 kg / 1.00 pounds 452.0 g / 4.4 N
5 mm	Stal (~0.2)	0.21 kg / 0.45 pounds 206.0 g / 2.0 N
10 mm	Stal (~0.2)	0.03 kg / 0.07 pounds 34.0 g / 0.3 N
15 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 8.0 g / 0.1 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data defines the approximate holding capacity sufficient to initiate the downward movement of the magnet down against a upright steel plate (considering typical friction). This value is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MPL 20x10x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.85 kg / 4.07 pounds 1845.0 g / 18.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.23 kg / 2.71 pounds 1230.0 g / 12.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.62 kg / 1.36 pounds 615.0 g / 6.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.08 kg / 6.78 pounds 3075.0 g / 30.2 N

When mounting a element on a vertical wall (e.g., a fridge), it will only hold just about 20%-30% of its nominal power. Gravity and a low friction coefficient mean that products slip faster than they pull off. Planning a vertical fastening? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a much lighter weight. Using a rubber pad can effectively raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
MPL 20x10x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.62 kg / 1.36 pounds 615.0 g / 6.0 N
1 mm	25%	1.54 kg / 3.39 pounds 1537.5 g / 15.1 N
2 mm	50%	3.08 kg / 6.78 pounds 3075.0 g / 30.2 N
3 mm	75%	4.61 kg / 10.17 pounds 4612.5 g / 45.2 N
5 mm	100%	6.15 kg / 13.56 pounds 6150.0 g / 60.3 N
10 mm	100%	6.15 kg / 13.56 pounds 6150.0 g / 60.3 N
11 mm	100%	6.15 kg / 13.56 pounds 6150.0 g / 60.3 N
12 mm	100%	6.15 kg / 13.56 pounds 6150.0 g / 60.3 N

A thin metal plate is incapable of absorb the full magnetic flux, which wastes potential of the magnet. Should you attach a powerful product to a weak sheet, the flux will pass right through and the attraction force will be weaker. To achieve the maximum of this neodymium's power, you need a suitably thick element of metal. The material oversaturation means that on delicate walls (e.g., thin profiles), the magnet works worse. We advise picking the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 20x10x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	6.15 kg / 13.56 pounds 6150.0 g / 60.3 N	OK
40 °C	-2.2%	6.01 kg / 13.26 pounds 6014.7 g / 59.0 N	OK
60 °C	-4.4%	5.88 kg / 12.96 pounds 5879.4 g / 57.7 N
80 °C	-6.6%	5.74 kg / 12.66 pounds 5744.1 g / 56.3 N
100 °C	-28.8%	4.38 kg / 9.65 pounds 4378.8 g / 43.0 N

Standard neodymium magnets irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – excessive heat can permanently destroy this magnet. With increasing heat, the neodymium's power momentarily drops. Do not use this magnet in hot environments higher than its operating temperature limit. Too high temperature will cause permanent loss of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently sooner than long magnets. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 20x10x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	15.04 kg / 33.17 pounds 4 923 Gs	2.26 kg / 4.98 pounds 2257 g / 22.1 N	N/A
1 mm	13.20 kg / 29.11 pounds 6 544 Gs	1.98 kg / 4.37 pounds 1980 g / 19.4 N	11.88 kg / 26.19 pounds ~0 Gs
2 mm	11.36 kg / 25.03 pounds 6 069 Gs	1.70 kg / 3.76 pounds 1703 g / 16.7 N	10.22 kg / 22.53 pounds ~0 Gs
3 mm	9.63 kg / 21.22 pounds 5 588 Gs	1.44 kg / 3.18 pounds 1444 g / 14.2 N	8.66 kg / 19.10 pounds ~0 Gs
5 mm	6.71 kg / 14.78 pounds 4 664 Gs	1.01 kg / 2.22 pounds 1006 g / 9.9 N	6.03 kg / 13.30 pounds ~0 Gs
10 mm	2.53 kg / 5.58 pounds 2 865 Gs	0.38 kg / 0.84 pounds 380 g / 3.7 N	2.28 kg / 5.02 pounds ~0 Gs
20 mm	0.41 kg / 0.90 pounds 1 148 Gs	0.06 kg / 0.13 pounds 61 g / 0.6 N	0.37 kg / 0.81 pounds ~0 Gs
50 mm	0.01 kg / 0.02 pounds 165 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.01 pounds 104 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 69 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 48 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 35 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 26 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a wider radius than a magnet and sheet setup. The setup of two magnets generates a stronger field and a larger range of operation. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is extreme. The repulsion force is a bit weaker than the attraction, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
Important: Estimates refer to shear force of dual matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MPL 20x10x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.5 cm
Hearing aid	10 Gs (1.0 mT)	6.0 cm
Timepiece	20 Gs (2.0 mT)	4.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.5 cm
Remote	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a serious hazard to IT equipment as well as medical implants. These neodymiums produce a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Special caution must be exercised by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MPL 20x10x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.36 km/h (8.16 m/s)	0.25 J
30 mm	50.03 km/h (13.90 m/s)	0.72 J
50 mm	64.58 km/h (17.94 m/s)	1.21 J
100 mm	91.32 km/h (25.37 m/s)	2.41 J

Magnetic elements are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 20x10x5 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Flux)
MPL 20x10x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	7 031 Mx	70.3 µWb
P_c Coefficient	0.42	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter when building generators and motors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 20x10x5 / N38

Environment	Effective steel pull	Effect
Air (land)	6.15 kg	Standard
Water (riverbed)	7.04 kg (+0.89 kg buoyancy gain)	+14.5%

Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Shear force

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

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Power loss vs temp

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.42

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.

Engineering data and GPSR

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%

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: 020128-2026

Measurement Calculator

Pulling force

Kilograms (kg)

Newtons (N)

lbs

Field Strength

Gauss (Gs)

Enter a value into any field, to see the remaining fields will recalculate on the fly.

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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 20x10x5 mm and a weight of 7.5 g, guarantees premium class connection. This magnetic block with a force of 60.31 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating secures 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. Watch your fingers! Magnets with a force of 6.15 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 6.15 kg), they are ideal as closers in furniture making and mounting elements in automation. 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 20x10x5 / N38 model is magnetized through the thickness (dimension 5 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: 20 mm (length), 10 mm (width), and 5 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 6.15 kg (force ~60.31 N), which, with such a flat shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of neodymium magnets.

Pros

Apart from their notable holding force, neodymium magnets have these key benefits:

They retain attractive force for almost ten years – the loss is just ~1% (in theory),
They show high resistance to demagnetization induced by external disturbances,
Thanks to the metallic finish, the coating of nickel, gold-plated, or silver gives an professional appearance,
Magnets possess very high magnetic induction on the surface,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures reaching 230°C and above...
Possibility of exact creating as well as adjusting to complex conditions,
Huge importance in modern technologies – they find application in magnetic memories, drive modules, advanced medical instruments, also other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in compact constructions

Weaknesses

Drawbacks and weaknesses of neodymium magnets and ways of using them

They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
We warn that neodymium magnets can reduce their strength 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 prevent oxidation and corrosion.
We recommend a housing - magnetic holder, due to difficulties in realizing threads inside the magnet and complex forms.
Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these devices can complicate diagnosis medical in case of swallowing.
With large orders the cost of neodymium magnets is economically unviable,

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

Magnet power was defined for the most favorable conditions, assuming:

using a plate made of mild steel, functioning as a magnetic yoke
possessing a thickness of minimum 10 mm to ensure full flux closure
with an ideally smooth touching surface
with zero gap (without paint)
under perpendicular force vector (90-degree angle)
at room temperature

Determinants of practical lifting force of a magnet

Holding efficiency is affected by working environment parameters, including (from most important):

Gap (betwixt the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Steel thickness – too thin plate does not close the flux, causing part of the power to be wasted to the other side.
Material composition – different alloys attracts identically. Alloy additives worsen the interaction with the magnet.
Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity was determined using a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Warnings

Nickel allergy

Certain individuals experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Extended handling may cause an allergic reaction. We suggest use protective gloves.

Medical interference

People with a pacemaker have to keep an large gap from magnets. The magnetic field can stop the functioning of the life-saving device.

Do not underestimate power

Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Power loss in heat

Regular neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. Damage is permanent.

Do not drill into magnets

Dust created during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Serious injuries

Protect your hands. Two powerful magnets will join immediately with a force of massive weight, crushing anything in their path. Be careful!

Do not give to children

NdFeB magnets are not suitable for play. Swallowing multiple magnets may result in them pinching intestinal walls, which constitutes a critical condition and necessitates urgent medical intervention.

Compass and GPS

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Safe distance

Avoid bringing magnets near a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.

Material brittleness

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

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

MPL 20x10x5 / N38 - lamellar magnet

Detailed specification - MPL 20x10x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - report

Table 1: Static pull force (force vs distance) - characteristics MPL 20x10x5 / N38

Table 2: Vertical force (vertical surface) MPL 20x10x5 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 20x10x5 / N38

Table 4: Material efficiency (substrate influence) - power losses MPL 20x10x5 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MPL 20x10x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MPL 20x10x5 / N38

Table 7: Protective zones (implants) - precautionary measures MPL 20x10x5 / N38

Table 8: Dynamics (cracking risk) - warning MPL 20x10x5 / N38

Table 9: Anti-corrosion coating durability MPL 20x10x5 / N38

Table 10: Electrical data (Flux) MPL 20x10x5 / N38

Table 11: Underwater work (magnet fishing) MPL 20x10x5 / N38

1. Shear force

2. Plate thickness effect

3. Power loss vs temp

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

Elemental analysis

Sustainability

Pulling force

Field Strength

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Advantages as well as disadvantages of neodymium magnets.

Pros

Weaknesses

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

Determinants of practical lifting force of a magnet

Warnings

Nickel allergy

Medical interference

Do not underestimate power

Power loss in heat

Do not drill into magnets

Serious injuries

Do not give to children

Compass and GPS

Safe distance

Material brittleness

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MPL 20x10x5 / N38

Table 2: Vertical force (vertical surface)
MPL 20x10x5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 20x10x5 / N38

Table 4: Material efficiency (substrate influence) - power losses
MPL 20x10x5 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 20x10x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 20x10x5 / N38

Table 7: Protective zones (implants) - precautionary measures
MPL 20x10x5 / N38

Table 8: Dynamics (cracking risk) - warning
MPL 20x10x5 / N38

Table 9: Anti-corrosion coating durability
MPL 20x10x5 / N38

Table 10: Electrical data (Flux)
MPL 20x10x5 / N38

Table 11: Underwater work (magnet fishing)
MPL 20x10x5 / N38