MPL 12.5x12.5x5 / N38 - lamellar magnet - ujęcie 2

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MPL 12.5x12.5x5 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

lamellar magnet

Catalog no 020117

GTIN/EAN: 5906301811237

5.00

length

12.5 mm [±0,1 mm]

Width

12.5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

5.86 g

Magnetization Direction

↑ axial

Load capacity

4.84 kg / 47.51 N

Magnetic Induction

360.91 mT / 3609 Gs

Coating

[NiCuNi] Nickel

product parameters »

2.83 ZŁ with VAT / pcs + price for transport

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Technical of the product - MPL 12.5x12.5x5 / N38 - lamellar magnet

Specification / characteristics - MPL 12.5x12.5x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020117
GTIN/EAN	5906301811237
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	12.5 mm [±0,1 mm]
Width	12.5 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	5.86 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.84 kg / 47.51 N
Magnetic Induction ~ ?	360.91 mT / 3609 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 12.5x12.5x5 / 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 assembly - data

The following values constitute the outcome of a engineering calculation. Results were calculated on models for the class Nd₂Fe₁₄B. Actual conditions may differ. Use these data as a reference point for designers.

Table 1: Static force (pull vs distance) - characteristics
MPL 12.5x12.5x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3608 Gs 360.8 mT	4.84 kg / 10.67 LBS 4840.0 g / 47.5 N	medium risk
1 mm	3156 Gs 315.6 mT	3.70 kg / 8.17 LBS 3704.2 g / 36.3 N	medium risk
2 mm	2671 Gs 267.1 mT	2.65 kg / 5.85 LBS 2653.8 g / 26.0 N	medium risk
3 mm	2211 Gs 221.1 mT	1.82 kg / 4.01 LBS 1817.7 g / 17.8 N	safe
5 mm	1464 Gs 146.4 mT	0.80 kg / 1.76 LBS 797.6 g / 7.8 N	safe
10 mm	538 Gs 53.8 mT	0.11 kg / 0.24 LBS 107.6 g / 1.1 N	safe
15 mm	234 Gs 23.4 mT	0.02 kg / 0.05 LBS 20.4 g / 0.2 N	safe
20 mm	119 Gs 11.9 mT	0.01 kg / 0.01 LBS 5.3 g / 0.1 N	safe
30 mm	42 Gs 4.2 mT	0.00 kg / 0.00 LBS 0.7 g / 0.0 N	safe
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe

Pulling power drops significantly with every subsequent millimeter of gap. Note that every additional insulation layer (e.g., dirt, varnish, rust) noticeably diminishes the holding power. Neodymiums operate strongest at the point of direct contact; distance weakens the force. Analyze how rapidly the pull force fall, when the magnet does not touch flatly to the metal substrate. When calculating the mounting, avoid redundant distances.

Table 2: Shear load (vertical surface)
MPL 12.5x12.5x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.97 kg / 2.13 LBS 968.0 g / 9.5 N
1 mm	Stal (~0.2)	0.74 kg / 1.63 LBS 740.0 g / 7.3 N
2 mm	Stal (~0.2)	0.53 kg / 1.17 LBS 530.0 g / 5.2 N
3 mm	Stal (~0.2)	0.36 kg / 0.80 LBS 364.0 g / 3.6 N
5 mm	Stal (~0.2)	0.16 kg / 0.35 LBS 160.0 g / 1.6 N
10 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 22.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

This section calculates the estimated weight limit required to cause the slippage of the magnet downwards against a vertical steel wall (assuming standard friction). This value depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 12.5x12.5x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.45 kg / 3.20 LBS 1452.0 g / 14.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.97 kg / 2.13 LBS 968.0 g / 9.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.48 kg / 1.07 LBS 484.0 g / 4.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.42 kg / 5.34 LBS 2420.0 g / 23.7 N

When mounting a element on a vertical wall (e.g., a car body), it will only hold just approx. 1/5 of its nominal power. Gravity and a low friction coefficient influence the fact that magnets slide down faster than they detach. Want to create a hanger? Note that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a much lighter load. Using a rubber coating can effectively raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 12.5x12.5x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.48 kg / 1.07 LBS 484.0 g / 4.7 N
1 mm	25%	1.21 kg / 2.67 LBS 1210.0 g / 11.9 N
2 mm	50%	2.42 kg / 5.34 LBS 2420.0 g / 23.7 N
3 mm	75%	3.63 kg / 8.00 LBS 3630.0 g / 35.6 N
5 mm	100%	4.84 kg / 10.67 LBS 4840.0 g / 47.5 N
10 mm	100%	4.84 kg / 10.67 LBS 4840.0 g / 47.5 N
11 mm	100%	4.84 kg / 10.67 LBS 4840.0 g / 47.5 N
12 mm	100%	4.84 kg / 10.67 LBS 4840.0 g / 47.5 N

A too thin steel is unable to conduct the entire magnetic field, which wastes potential of the magnet. Should you attach a powerful product to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize the maximum of this neodymium's power, you require a sufficiently solid element of metal. The material oversaturation means that on thin elements (e.g., thin profiles), the product works worse. We advise picking the steel cross-section according to the table below.

Table 5: Thermal resistance (material behavior) - resistance threshold
MPL 12.5x12.5x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.84 kg / 10.67 LBS 4840.0 g / 47.5 N	OK
40 °C	-2.2%	4.73 kg / 10.44 LBS 4733.5 g / 46.4 N	OK
60 °C	-4.4%	4.63 kg / 10.20 LBS 4627.0 g / 45.4 N
80 °C	-6.6%	4.52 kg / 9.97 LBS 4520.6 g / 44.3 N
100 °C	-28.8%	3.45 kg / 7.60 LBS 3446.1 g / 33.8 N

Ordinary NdFeB products lose strength past the thermal threshold. Avoid high temperatures – heat can irreversibly damage this magnet. As the temperature rises, the neodymium's force briefly lowers. Do not use this magnet close to heaters exceeding its safe range. Ignoring the limit will lead to destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) are more susceptible to demagnetization at lower temperatures than long magnets. The danger warning in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 12.5x12.5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.54 kg / 27.64 LBS 5 069 Gs	1.88 kg / 4.15 LBS 1880 g / 18.4 N	N/A
1 mm	11.08 kg / 24.43 LBS 6 783 Gs	1.66 kg / 3.66 LBS 1662 g / 16.3 N	9.97 kg / 21.98 LBS ~0 Gs
2 mm	9.59 kg / 21.15 LBS 6 312 Gs	1.44 kg / 3.17 LBS 1439 g / 14.1 N	8.63 kg / 19.04 LBS ~0 Gs
3 mm	8.18 kg / 18.03 LBS 5 827 Gs	1.23 kg / 2.70 LBS 1226 g / 12.0 N	7.36 kg / 16.22 LBS ~0 Gs
5 mm	5.71 kg / 12.60 LBS 4 871 Gs	0.86 kg / 1.89 LBS 857 g / 8.4 N	5.14 kg / 11.34 LBS ~0 Gs
10 mm	2.07 kg / 4.55 LBS 2 929 Gs	0.31 kg / 0.68 LBS 310 g / 3.0 N	1.86 kg / 4.10 LBS ~0 Gs
20 mm	0.28 kg / 0.61 LBS 1 076 Gs	0.04 kg / 0.09 LBS 42 g / 0.4 N	0.25 kg / 0.55 LBS ~0 Gs
50 mm	0.00 kg / 0.01 LBS 136 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 84 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 56 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 39 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 28 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 21 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums interact from a much further distance than a magnet and steel setup. Such a system of two magnets generates a stronger field and a further horizon of operation. Planning to create a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Remember that when attracting two neodymiums, the pinch force is extreme. The levitation is marginally weaker than the attraction, but still large.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Estimates demonstrate shear force of two identical magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - precautionary measures
MPL 12.5x12.5x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Mechanical watch	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.5 cm
Car key	50 Gs (5.0 mT)	3.0 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 large risk to IT equipment and pacemakers. These magnets generate a field that prevents correct functioning of sensitive medical devices. Remember: the unseen radiation passes through tissues and glass. Exceptional care must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
MPL 12.5x12.5x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.38 km/h (8.16 m/s)	0.20 J
30 mm	50.21 km/h (13.95 m/s)	0.57 J
50 mm	64.81 km/h (18.00 m/s)	0.95 J
100 mm	91.65 km/h (25.46 m/s)	1.90 J

Magnetic elements are very brittle – a strong collision with metal risks their cracking. Control the attraction moment – a neodymium left loose speeds with massive force. Impact energy can cause material chips or injury to skin. Always hold the magnet during installation so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the magnet. Wear safety glasses when working with large magnets.

Table 9: Coating parameters (durability)
MPL 12.5x12.5x5 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MPL 12.5x12.5x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 874 Mx	58.7 µWb
P_c Coefficient	0.46	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: Physics of underwater searching
MPL 12.5x12.5x5 / N38

Environment	Effective steel pull	Effect
Air (land)	4.84 kg	Standard
Water (riverbed)	5.54 kg (+0.70 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains just a fraction of its perpendicular strength.

2. Steel saturation

*Thin metal sheet (e.g. 0.5mm PC case) severely 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) = 0.46

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

Chemical composition

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

Ecology and recycling (GPSR)

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: 020117-2026

Measurement Calculator

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Force in kg

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This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 12.5x12.5x5 mm and a weight of 5.86 g, guarantees premium class connection. This magnetic block with a force of 47.51 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

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 12.5x12.5x5 / 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.

They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 4.84 kg), they are ideal as closers in furniture making and mounting elements in automation. 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 12.5x12.5x5 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

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 (12.5x12.5 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 12.5x12.5x5 mm, which, at a weight of 5.86 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 4.84 kg (force ~47.51 N), which, with such a flat shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:

Their power is maintained, and after approximately 10 years it drops only by ~1% (according to research),
Neodymium magnets are extremely resistant to loss of magnetic properties caused by external magnetic fields,
In other words, due to the shiny surface of gold, the element gains a professional look,
Magnetic induction on the working layer of the magnet remains maximum,
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 the ability of precise forming and adaptation to specialized solutions, neodymium magnets can be modeled in a variety of geometric configurations, which makes them more universal,
Significant place in future technologies – they are commonly used in computer drives, electric drive systems, diagnostic systems, and multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems

Limitations

Drawbacks and weaknesses of neodymium magnets and ways of using them

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only secures them against impacts but also raises 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 stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
Due to limitations in realizing nuts and complicated shapes in magnets, we propose using a housing - magnetic mount.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these devices can disrupt the diagnostic process medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

The lifting capacity listed is a result of laboratory testing performed under standard conditions:

on a base made of structural steel, optimally conducting the magnetic flux
with a cross-section no less than 10 mm
with a plane perfectly flat
under conditions of gap-free contact (surface-to-surface)
for force acting at a right angle (in the magnet axis)
at room temperature

Lifting capacity in practice – influencing factors

Please note that the working load may be lower subject to elements below, in order of importance:

Distance – existence of foreign body (paint, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Plate thickness – too thin plate does not accept the full field, causing part of the power to be escaped into the air.
Plate material – low-carbon steel gives the best results. Higher carbon content decrease magnetic permeability and holding force.
Plate texture – ground elements ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
Heat – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate lowers the holding force.

Precautions when working with neodymium magnets

Caution required

Be careful. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can move away.

Bodily injuries

Risk of injury: The pulling power is so immense that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Metal Allergy

It is widely known that the nickel plating (the usual finish) is a common allergen. If you have an allergy, avoid direct skin contact and choose encased magnets.

Life threat

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Magnets are brittle

Watch out for shards. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.

Danger to the youngest

Adult use only. Small elements can be swallowed, causing severe trauma. Store away from kids and pets.

Magnetic media

Avoid bringing magnets near a purse, computer, or TV. The magnetic field can destroy these devices and wipe information from cards.

GPS and phone interference

Navigation devices and smartphones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Dust is flammable

Combustion risk: Neodymium dust is explosive. Avoid machining magnets without safety gear as this may cause fire.

Demagnetization risk

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Danger! Details about hazards in the article: Safety of working with magnets.

MPL 12.5x12.5x5 / N38 - lamellar magnet

Technical of the product - MPL 12.5x12.5x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - data

Table 1: Static force (pull vs distance) - characteristics MPL 12.5x12.5x5 / N38

Table 2: Shear load (vertical surface) MPL 12.5x12.5x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MPL 12.5x12.5x5 / N38

Table 4: Steel thickness (saturation) - power losses MPL 12.5x12.5x5 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MPL 12.5x12.5x5 / N38

Table 6: Two magnets (attraction) - field collision MPL 12.5x12.5x5 / N38

Table 7: Hazards (electronics) - precautionary measures MPL 12.5x12.5x5 / N38

Table 8: Collisions (cracking risk) - warning MPL 12.5x12.5x5 / N38

Table 9: Coating parameters (durability) MPL 12.5x12.5x5 / N38

Table 10: Construction data (Flux) MPL 12.5x12.5x5 / N38

Table 11: Physics of underwater searching MPL 12.5x12.5x5 / N38

1. Wall mount (shear)

2. Steel saturation

3. Heat tolerance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

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MW 15x8 / N38 - cylindrical magnet

BM 650x180x70 [4x M8] - magnetic beam

XT-5 magnetyzery do silników - DIESEL + powietrze - XT-5 magnetizer

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

Lifting capacity in practice – influencing factors

Precautions when working with neodymium magnets

Caution required

Bodily injuries

Metal Allergy

Life threat

Magnets are brittle

Danger to the youngest

Magnetic media

GPS and phone interference

Dust is flammable

Demagnetization risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MPL 12.5x12.5x5 / N38

Table 2: Shear load (vertical surface)
MPL 12.5x12.5x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 12.5x12.5x5 / N38

Table 4: Steel thickness (saturation) - power losses
MPL 12.5x12.5x5 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MPL 12.5x12.5x5 / N38

Table 6: Two magnets (attraction) - field collision
MPL 12.5x12.5x5 / N38

Table 7: Hazards (electronics) - precautionary measures
MPL 12.5x12.5x5 / N38

Table 8: Collisions (cracking risk) - warning
MPL 12.5x12.5x5 / N38

Table 9: Coating parameters (durability)
MPL 12.5x12.5x5 / N38

Table 10: Construction data (Flux)
MPL 12.5x12.5x5 / N38

Table 11: Physics of underwater searching
MPL 12.5x12.5x5 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.