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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

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Product card - 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 modeling of the product - report

These data represent the direct effect of a mathematical calculation. Values rely on models for the class Nd₂Fe₁₄B. Actual parameters might slightly differ from theoretical values. Treat these data as a supplementary guide during assembly planning.

Table 1: Static pull force (pull 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	critical level
1 mm	2791 Gs 279.1 mT	8.95 kg / 19.73 lbs 8947.7 g / 87.8 N	warning
2 mm	2358 Gs 235.8 mT	6.38 kg / 14.08 lbs 6384.9 g / 62.6 N	warning
3 mm	1965 Gs 196.5 mT	4.43 kg / 9.77 lbs 4432.4 g / 43.5 N	warning
5 mm	1360 Gs 136.0 mT	2.12 kg / 4.68 lbs 2122.9 g / 20.8 N	warning
10 mm	615 Gs 61.5 mT	0.43 kg / 0.96 lbs 434.1 g / 4.3 N	low risk
15 mm	329 Gs 32.9 mT	0.12 kg / 0.27 lbs 124.5 g / 1.2 N	low risk
20 mm	195 Gs 19.5 mT	0.04 kg / 0.10 lbs 43.9 g / 0.4 N	low risk
30 mm	83 Gs 8.3 mT	0.01 kg / 0.02 lbs 8.0 g / 0.1 N	low risk
50 mm	24 Gs 2.4 mT	0.00 kg / 0.00 lbs 0.6 g / 0.0 N	low risk

Grip strength decreases significantly with every subsequent millimeter of gap. Remember that even a very thin break (e.g., dirt, paint, dust) noticeably reduces the pull force. Magnets operate most effectively at the point of direct contact; gap kills the power. Analyze how rapidly the load capacity fall, when the magnet does not touch tightly to the steel surface. When designing the arrangement, eliminate redundant distances.

Table 2: Slippage capacity (vertical surface)
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

This section shows the approximate holding capacity sufficient to cause the sliding of the magnet downwards on a upright steel plate (assuming typical friction coefficient). This parameter depends on the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
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 mounting a holder on a upright surface (e.g., a board), it will only hold barely about 1/5 of nominal attraction strength. Gravity and a weak degree of grip cause that holders slide down easier than they pop off the substrate. Planning a wall mount? Consider that the shear force is noticeably lower than the maximum static pull force. On a painted metal, the element will slip down under a noticeably lighter cargo. Utilizing a rubberized pad can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
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 is incapable of absorb the entire magnetic field, which squanders power of the holder. If you mount a strong magnet to a thin surface, the flux will penetrate right through and the holding will be smaller. To utilize 100% of this magnet's power, you require a sufficiently solid element of steel. The saturation phenomenon means that on delicate walls (e.g., car bodies), the magnet works worse. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal stability (stability) - resistance threshold
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

Ordinary NdFeB products change their properties strength past the thermal threshold. Protect against heat – excessive heat can irreversibly demagnetize this magnet. As the temperature rises, the magnet's force momentarily drops. Avoid using this product near heat sources exceeding its safe range. Exceeding the critical threshold will result in irreversible degradation of magnetic properties.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) may lose charge permanently sooner than taller cylinders. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
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 magnetic products interact from a wider radius than a magnet and steel setup. The setup of two magnets creates a more powerful interaction and a further horizon of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the collision energy is extreme. The levitation is marginally weaker than the connection force, but still impressive.
*Flux density between like poles reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Note: Estimates show sliding force of dual matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (implants) - 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
Mechanical watch	20 Gs (2.0 mT)	5.5 cm
Mobile device	40 Gs (4.0 mT)	4.5 cm
Remote	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 poses a large risk to IT equipment as well as pacemakers. These neodymiums produce a flux that disrupts operation of digital equipment. Be aware: the unseen radiation penetrates the body and plastic. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
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

Magnetic elements are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a magnet released freely turns into a projectile. Kinetic force can cause material chips or painful pinches to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
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 passing through the magnet pole. Key data for generator designers as well as sensors. The P_c coefficient determines 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: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Sliding resistance

*Caution: On a vertical wall, the magnet holds only approx. 20-30% of its max power.

2. Plate thickness effect

*Thin steel (e.g. computer case) significantly reduces 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) = 0.31

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

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: 020397-2026

Measurement Calculator

Force (pull)

Newtons (N)

Force in lbs

Field Strength

Induction (Gs)

Input your figure in one of the inputs, to see the remaining fields change on the fly.

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This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x10x5 mm and a weight of 15 g, guarantees the highest quality connection. As a magnetic bar with high power (approx. 11.85 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

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 40x10x5x2[7/3.5] / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, 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 40x10x5x2[7/3.5] / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 11.85 kg), they are ideal as hidden locks 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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

Standardly, the MPL 40x10x5x2[7/3.5] / 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. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 40x10x5 mm, which, at a weight of 15 g, makes it an element with impressive energy density. 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 product meets the standards for N38 grade magnets.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Strengths

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

Their strength is maintained, and after around ten years it decreases only by ~1% (theoretically),
They do not lose their magnetic properties even under close interference source,
By covering with a lustrous layer of silver, the element has an proper look,
The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of detailed modeling as well as modifying to concrete needs,
Universal use in high-tech industry – they are used in data components, electromotive mechanisms, advanced medical instruments, also complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in miniature devices

Disadvantages

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in realizing threads and complicated shapes in magnets, we propose using cover - magnetic holder.
Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Additionally, tiny parts of these devices can disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Magnetic strength at its maximum – what it depends on?

The load parameter shown refers to the peak performance, recorded under ideal test conditions, namely:

using a plate made of mild steel, serving as a magnetic yoke
with a cross-section minimum 10 mm
with an ideally smooth touching surface
with direct contact (no impurities)
during pulling in a direction perpendicular to the plane
at standard ambient temperature

Lifting capacity in real conditions – factors

Holding efficiency is influenced by working environment parameters, including (from priority):

Distance – the presence of foreign body (paint, dirt, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
Angle of force application – highest force is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Metal type – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Lifting capacity was measured by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate decreases the holding force.

Precautions when working with neodymium magnets

ICD Warning

Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.

Sensitization to coating

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction appears, immediately stop handling magnets and wear gloves.

Risk of cracking

Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Power loss in heat

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. The loss of strength is permanent.

Phone sensors

Remember: rare earth magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your mobile, device, and GPS.

Protect data

Device Safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).

Serious injuries

Big blocks can smash fingers instantly. Under no circumstances put your hand between two attracting surfaces.

Do not underestimate power

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Danger to the youngest

These products are not toys. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which poses a critical condition and requires immediate surgery.

Fire risk

Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Attention! More info about hazards in the article: Magnet Safety Guide.

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the product - report

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

Table 2: Slippage capacity (vertical surface) MPL 40x10x5x2[7/3.5] / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 40x10x5x2[7/3.5] / N38

Table 4: Steel thickness (substrate influence) - power losses MPL 40x10x5x2[7/3.5] / N38

Table 5: Thermal stability (stability) - resistance threshold MPL 40x10x5x2[7/3.5] / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 40x10x5x2[7/3.5] / N38

Table 7: Safety (HSE) (implants) - warnings MPL 40x10x5x2[7/3.5] / N38

Table 8: Impact energy (kinetic energy) - collision effects MPL 40x10x5x2[7/3.5] / N38

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

Table 10: Construction data (Flux) MPL 40x10x5x2[7/3.5] / N38

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

1. Sliding resistance

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Sustainability

Force (pull)

Field Strength

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Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

Magnetic strength at its maximum – what it depends on?

Lifting capacity in real conditions – factors

Precautions when working with neodymium magnets

ICD Warning

Sensitization to coating

Risk of cracking

Power loss in heat

Phone sensors

Protect data

Serious injuries

Do not underestimate power

Danger to the youngest

Fire risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Slippage capacity (vertical surface)
MPL 40x10x5x2[7/3.5] / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x10x5x2[7/3.5] / N38

Table 4: Steel thickness (substrate influence) - power losses
MPL 40x10x5x2[7/3.5] / N38

Table 5: Thermal stability (stability) - resistance threshold
MPL 40x10x5x2[7/3.5] / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 40x10x5x2[7/3.5] / N38

Table 7: Safety (HSE) (implants) - warnings
MPL 40x10x5x2[7/3.5] / N38

Table 8: Impact energy (kinetic energy) - collision effects
MPL 40x10x5x2[7/3.5] / N38

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

Table 10: Construction data (Flux)
MPL 40x10x5x2[7/3.5] / N38

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

Strengths and weaknesses of Nd₂Fe₁₄B magnets.