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MPL 40x10x5x2[7/3.5] / 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 020397

GTIN/EAN: 5906301811909

5.00

length

40 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

15 g

Magnetization Direction

↑ axial

Load capacity

11.85 kg / 116.27 N

Magnetic Induction

321.37 mT / 3214 Gs

Coating

[NiCuNi] Nickel

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9.93 ZŁ with VAT / pcs + price for transport

8.07 ZŁ net + 23% VAT / pcs

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

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

properties

properties	values
Cat. no.	020397
GTIN/EAN	5906301811909
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	40 mm [±0,1 mm]
Width	10 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	15 g
Magnetization Direction	↑ axial
Load capacity ~ ?	11.85 kg / 116.27 N
Magnetic Induction ~ ?	321.37 mT / 3214 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x10x5x2[7/3.5] / 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

Technical simulation of the magnet - report

The following data represent the direct effect of a mathematical analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Operational parameters may deviate from the simulation results. Please consider these data as a supplementary guide for designers.

Table 1: Static force (force vs distance) - interaction chart
MPL 40x10x5x2[7/3.5] / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3212 Gs 321.2 mT	11.85 kg / 26.12 LBS 11850.0 g / 116.2 N	dangerous!
1 mm	2791 Gs 279.1 mT	8.95 kg / 19.73 LBS 8947.7 g / 87.8 N	medium risk
2 mm	2358 Gs 235.8 mT	6.38 kg / 14.08 LBS 6384.9 g / 62.6 N	medium risk
3 mm	1965 Gs 196.5 mT	4.43 kg / 9.77 LBS 4432.4 g / 43.5 N	medium risk
5 mm	1360 Gs 136.0 mT	2.12 kg / 4.68 LBS 2122.9 g / 20.8 N	medium risk
10 mm	615 Gs 61.5 mT	0.43 kg / 0.96 LBS 434.1 g / 4.3 N	safe
15 mm	329 Gs 32.9 mT	0.12 kg / 0.27 LBS 124.5 g / 1.2 N	safe
20 mm	195 Gs 19.5 mT	0.04 kg / 0.10 LBS 43.9 g / 0.4 N	safe
30 mm	83 Gs 8.3 mT	0.01 kg / 0.02 LBS 8.0 g / 0.1 N	safe
50 mm	24 Gs 2.4 mT	0.00 kg / 0.00 LBS 0.6 g / 0.0 N	safe

Pulling power decreases sharply with every subsequent millimeter of spacing. Remember that even a very thin break (e.g., contamination, paint, veneer) noticeably diminishes the holding power. Neodymiums operate optimally during direct contact; distance kills the force. Notice how quickly the load capacity plummet, when the magnet does not touch flatly to the steel surface. When planning the arrangement, discard additional spacers.

Table 2: Slippage load (wall)
MPL 40x10x5x2[7/3.5] / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.37 kg / 5.22 LBS 2370.0 g / 23.2 N
1 mm	Stal (~0.2)	1.79 kg / 3.95 LBS 1790.0 g / 17.6 N
2 mm	Stal (~0.2)	1.28 kg / 2.81 LBS 1276.0 g / 12.5 N
3 mm	Stal (~0.2)	0.89 kg / 1.95 LBS 886.0 g / 8.7 N
5 mm	Stal (~0.2)	0.42 kg / 0.93 LBS 424.0 g / 4.2 N
10 mm	Stal (~0.2)	0.09 kg / 0.19 LBS 86.0 g / 0.8 N
15 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 24.0 g / 0.2 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 8.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The table below presents the approximate shear load necessary to cause the slippage of the magnet vertically on a upright metal surface (assuming typical friction). The holding force is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x10x5x2[7/3.5] / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.55 kg / 7.84 LBS 3555.0 g / 34.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.37 kg / 5.22 LBS 2370.0 g / 23.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.19 kg / 2.61 LBS 1185.0 g / 11.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.93 kg / 13.06 LBS 5925.0 g / 58.1 N

When placing a holder on a upright surface (e.g., a fridge), it will maintain just approx. 20%-30% of its nominal power. Gravity and a weak degree of grip cause that holders slip easier than they pop off the substrate. Want to create a wall mount? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the magnet will slip down under a noticeably lighter weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 40x10x5x2[7/3.5] / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.59 kg / 1.31 LBS 592.5 g / 5.8 N
1 mm	13%	1.48 kg / 3.27 LBS 1481.3 g / 14.5 N
2 mm	25%	2.96 kg / 6.53 LBS 2962.5 g / 29.1 N
3 mm	38%	4.44 kg / 9.80 LBS 4443.8 g / 43.6 N
5 mm	63%	7.41 kg / 16.33 LBS 7406.3 g / 72.7 N
10 mm	100%	11.85 kg / 26.12 LBS 11850.0 g / 116.2 N
11 mm	100%	11.85 kg / 26.12 LBS 11850.0 g / 116.2 N
12 mm	100%	11.85 kg / 26.12 LBS 11850.0 g / 116.2 N

A too thin steel cannot absorb the entire magnetic field, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the magnetism will penetrate right through and the holding will be smaller. To utilize the maximum of this magnet's power, you need a suitably thick backing of metal. The saturation effect causes that on delicate walls (e.g., car bodies), the product works worse. We advise picking the steel dimension based on the following data.

Table 5: Working in heat (stability) - power drop
MPL 40x10x5x2[7/3.5] / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	11.85 kg / 26.12 LBS 11850.0 g / 116.2 N	OK
40 °C	-2.2%	11.59 kg / 25.55 LBS 11589.3 g / 113.7 N	OK
60 °C	-4.4%	11.33 kg / 24.98 LBS 11328.6 g / 111.1 N
80 °C	-6.6%	11.07 kg / 24.40 LBS 11067.9 g / 108.6 N
100 °C	-28.8%	8.44 kg / 18.60 LBS 8437.2 g / 82.8 N

Classic neodymiums irreversibly lose power past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly destroy this magnet. With increasing heat, the magnet's force temporarily decreases. Avoid using this product near heat sources higher than its working range. Exceeding the critical threshold will cause destruction of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) may lose charge permanently under lower heat stress than taller cylinders. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 40x10x5x2[7/3.5] / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	25.44 kg / 56.10 LBS 4 569 Gs	3.82 kg / 8.41 LBS 3817 g / 37.4 N	N/A
1 mm	22.33 kg / 49.22 LBS 6 018 Gs	3.35 kg / 7.38 LBS 3349 g / 32.9 N	20.09 kg / 44.30 LBS ~0 Gs
2 mm	19.21 kg / 42.36 LBS 5 582 Gs	2.88 kg / 6.35 LBS 2882 g / 28.3 N	17.29 kg / 38.12 LBS ~0 Gs
3 mm	16.31 kg / 35.96 LBS 5 144 Gs	2.45 kg / 5.39 LBS 2447 g / 24.0 N	14.68 kg / 32.36 LBS ~0 Gs
5 mm	11.45 kg / 25.23 LBS 4 309 Gs	1.72 kg / 3.78 LBS 1717 g / 16.8 N	10.30 kg / 22.71 LBS ~0 Gs
10 mm	4.56 kg / 10.05 LBS 2 719 Gs	0.68 kg / 1.51 LBS 684 g / 6.7 N	4.10 kg / 9.04 LBS ~0 Gs
20 mm	0.93 kg / 2.05 LBS 1 230 Gs	0.14 kg / 0.31 LBS 140 g / 1.4 N	0.84 kg / 1.85 LBS ~0 Gs
50 mm	0.04 kg / 0.08 LBS 249 Gs	0.01 kg / 0.01 LBS 6 g / 0.1 N	0.03 kg / 0.08 LBS ~0 Gs
60 mm	0.02 kg / 0.04 LBS 167 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.03 LBS ~0 Gs
70 mm	0.01 kg / 0.02 LBS 116 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.01 LBS 84 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.01 LBS 62 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 48 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets attract each other from a wider radius than a magnet and steel combination. Such a system of two magnets creates a more powerful interaction and a larger range of performance. Designing a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is a bit weaker than the connection force, but still impressive.
*The magnetic induction in repulsion mode reaches ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Attention: Estimates show shear force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MPL 40x10x5x2[7/3.5] / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	9.0 cm
Hearing aid	10 Gs (1.0 mT)	7.0 cm
Timepiece	20 Gs (2.0 mT)	5.5 cm
Mobile device	40 Gs (4.0 mT)	4.5 cm
Car key	50 Gs (5.0 mT)	4.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

A strong magnetic field is a large risk to electronics and medical implants. These magnets generate a field that disrupts operation of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and housings. Special caution must be exercised by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MPL 40x10x5x2[7/3.5] / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	28.99 km/h (8.05 m/s)	0.49 J
30 mm	49.12 km/h (13.64 m/s)	1.40 J
50 mm	63.39 km/h (17.61 m/s)	2.33 J
100 mm	89.64 km/h (24.90 m/s)	4.65 J

NdFeB products are very brittle – a violent impact against metal causes immediate chipping. Watch the impact speed – a neodymium left loose becomes dangerous. Kinetic force can trigger coating fragments or painful pinches to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Surface protection spec
MPL 40x10x5x2[7/3.5] / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MPL 40x10x5x2[7/3.5] / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	11 419 Mx	114.2 µWb
P_c Coefficient	0.31	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter when building generators as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
MPL 40x10x5x2[7/3.5] / N38

Environment	Effective steel pull	Effect
Air (land)	11.85 kg	Standard
Water (riverbed)	13.57 kg (+1.72 kg buoyancy gain)	+14.5%

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. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Note: On a vertical wall, the magnet retains only a fraction of its max power.

2. Steel thickness impact

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.31

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.

Engineering data and GPSR

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%

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: 020397-2026

Quick Unit Converter

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Force (N)

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Component MPL 40x10x5x2[7/3.5] / N38 features a low profile and professional pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 11.85 kg), this product is available immediately from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

Separating block 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 11.85 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 40x10x5x2[7/3.5] / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 11.85 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.

For mounting flat magnets MPL 40x10x5x2[7/3.5] / 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.

Standardly, the MPL 40x10x5x2[7/3.5] / N38 model is magnetized axially (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. 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: 40 mm (length), 10 mm (width), and 5 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 11.85 kg (force ~116.27 N), which, with such a compact shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

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

They do not lose strength, even over approximately ten years – the reduction in strength is only ~1% (according to tests),
They feature excellent resistance to magnetism drop as a result of opposing magnetic fields,
In other words, due to the metallic layer of nickel, the element becomes visually attractive,
Magnetic induction on the surface of the magnet turns out to be exceptional,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to flexibility in shaping and the capacity to customize to complex applications,
Significant place in innovative solutions – they are commonly used in HDD drives, electric drive systems, diagnostic systems, and technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Cons

Drawbacks and weaknesses of neodymium magnets: tips and applications.

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength 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
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Limited possibility of making nuts in the magnet and complicated shapes - preferred is a housing - magnet mounting.
Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these devices are able to disrupt the diagnostic process medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum magnetic pulling force – what affects it?

Information about lifting capacity was defined for optimal configuration, taking into account:

on a plate made of structural steel, effectively closing the magnetic field
with a thickness no less than 10 mm
with a surface free of scratches
without the slightest insulating layer between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

In practice, the actual lifting capacity is determined by many variables, listed from most significant:

Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Base massiveness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped into the air.
Material type – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal environment – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was determined using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate lowers the holding force.

H&S for magnets

This is not a toy

Absolutely keep magnets away from children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are life-threatening.

Permanent damage

Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.

GPS Danger

An intense magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Keep magnets near a smartphone to prevent breaking the sensors.

Metal Allergy

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If skin irritation occurs, cease handling magnets and wear gloves.

Crushing risk

Risk of injury: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Pacemakers

Medical warning: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Material brittleness

Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Flammability

Combustion risk: Rare earth powder is highly flammable. Do not process magnets in home conditions as this may cause fire.

Data carriers

Device Safety: Neodymium magnets can damage payment cards and delicate electronics (heart implants, hearing aids, timepieces).

Do not underestimate power

Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Important! Want to know more? Check our post: Why are neodymium magnets dangerous?

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - report

Table 1: Static force (force vs distance) - interaction chart MPL 40x10x5x2[7/3.5] / N38

Table 2: Slippage load (wall) MPL 40x10x5x2[7/3.5] / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MPL 40x10x5x2[7/3.5] / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MPL 40x10x5x2[7/3.5] / N38

Table 5: Working in heat (stability) - power drop MPL 40x10x5x2[7/3.5] / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MPL 40x10x5x2[7/3.5] / N38

Table 7: Protective zones (electronics) - warnings MPL 40x10x5x2[7/3.5] / N38

Table 8: Impact energy (cracking risk) - warning MPL 40x10x5x2[7/3.5] / N38

Table 9: Surface protection spec MPL 40x10x5x2[7/3.5] / N38

Table 10: Electrical data (Pc) MPL 40x10x5x2[7/3.5] / N38

Table 11: Physics of underwater searching MPL 40x10x5x2[7/3.5] / N38

1. Vertical hold

2. Steel thickness impact

3. Heat tolerance

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

Material specification

Sustainability

Pulling force

Field Strength

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MW 25x5 / N38AH - cylindrical magnet

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Cons

Pull force analysis

Maximum magnetic pulling force – what affects it?

Practical aspects of lifting capacity – factors

H&S for magnets

This is not a toy

Permanent damage

GPS Danger

Metal Allergy

Crushing risk

Pacemakers

Material brittleness

Flammability

Data carriers

Do not underestimate power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MPL 40x10x5x2[7/3.5] / N38

Table 2: Slippage load (wall)
MPL 40x10x5x2[7/3.5] / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 40x10x5x2[7/3.5] / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MPL 40x10x5x2[7/3.5] / N38

Table 5: Working in heat (stability) - power drop
MPL 40x10x5x2[7/3.5] / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 40x10x5x2[7/3.5] / N38

Table 7: Protective zones (electronics) - warnings
MPL 40x10x5x2[7/3.5] / N38

Table 8: Impact energy (cracking risk) - warning
MPL 40x10x5x2[7/3.5] / N38

Table 9: Surface protection spec
MPL 40x10x5x2[7/3.5] / N38

Table 10: Electrical data (P_c)
MPL 40x10x5x2[7/3.5] / N38

Table 11: Physics of underwater searching
MPL 40x10x5x2[7/3.5] / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.