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

technical specifications »

2.83 ZŁ with VAT / pcs + price for transport

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Technical details - 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

Physical modeling of the magnet - data

These values represent the outcome of a engineering analysis. Results were calculated on algorithms for the class Nd₂Fe₁₄B. Operational conditions might slightly deviate from the simulation results. Use these calculations as a reference point during assembly planning.

Table 1: Static force (pull vs gap) - 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	low risk
5 mm	1464 Gs 146.4 mT	0.80 kg / 1.76 LBS 797.6 g / 7.8 N	low risk
10 mm	538 Gs 53.8 mT	0.11 kg / 0.24 LBS 107.6 g / 1.1 N	low risk
15 mm	234 Gs 23.4 mT	0.02 kg / 0.05 LBS 20.4 g / 0.2 N	low risk
20 mm	119 Gs 11.9 mT	0.01 kg / 0.01 LBS 5.3 g / 0.1 N	low risk
30 mm	42 Gs 4.2 mT	0.00 kg / 0.00 LBS 0.7 g / 0.0 N	low risk
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Magnetic force decreases sharply with every subsequent millimeter of gap. Keep in mind that even the smallest gap (e.g., dirt, varnish, rust) noticeably reduces the pull force. Neodymiums hold strongest at the point of direct contact; air break drastically cuts the force. Notice how quickly the parameters plummet, when the product does not adhere directly to the steel surface. When designing the assembly, avoid unnecessary gaps.

Table 2: Sliding force (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 shear load necessary to initiate the downward movement of the magnet vertically along a vertical steel plate (considering standard friction coefficient). This value is relative to the gap size between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
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 hanging a magnet on a vertical plane (e.g., a car body), it you can count on just about 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip mean that magnets slide down faster than they pull off. Designing a wall mount? Note that the shear force is much weaker than the maximum static pull force. On a smooth steel, the element will give way down under a much lighter weight. Using a rubber coating can effectively raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
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 thin sheet is unable to take in the entire magnetic field, which wastes potential of the magnet. Should you install a neodymium to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To achieve 100% of this magnet's power, you need a suitably thick piece of metal. The saturation effect means that on delicate walls (e.g., appliance housings), the magnet shows lower pull force. We advise picking the steel cross-section according to the table below.

Table 5: Thermal resistance (stability) - thermal limit
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

Standard neodymium magnets lose power above the temperature limit. Watch out for overheating – heat can permanently demagnetize this product. As the temperature rises, the neodymium's power briefly lowers. Do not use this product close to heaters higher than its working range. Ignoring the limit will cause destruction of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) may lose charge permanently sooner compared to rod magnets. The danger warning in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - 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 sheet setup. The setup of magnet-to-magnet generates a stronger field and a wider radius of action. Designing a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is massive. The repulsion force is slightly lower than the connection force, but still impressive.
*Field value between like poles is approximately ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Attention: Figures apply to shear force of two matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - warnings
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
Timepiece	20 Gs (2.0 mT)	4.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.5 cm
Remote	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

A strong magnetic field poses a large risk to electronic devices and medical implants. These magnets produce a field that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation acts through matter and plastic. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
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

Neodymium magnets are prone to chipping – a collision with steel can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Kinetic force can trigger coating fragments or painful pinches to fingers. Hold the magnet firmly during installation so it doesn't hit violently against the steel surface. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with large magnets.

Table 9: Corrosion resistance
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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (P_c)
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)

Flux value passing through the pole surface. Essential parameter for generator designers and motors. P_c value determines the magnet's operating point.

Table 11: Submerged application
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%

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

Water displaces steel, making heavy objects slightly lighter. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Warning: On a vertical surface, the magnet retains only approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Temperature resistance

*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

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 specification and ecology

Material specification

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

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: 020117-2026

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Component MPL 12.5x12.5x5 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. This rectangular block with a force of 47.51 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

The key to success is sliding 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. Watch your fingers! Magnets with a force of 4.84 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

Plate magnets MPL 12.5x12.5x5 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as fasteners under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

Standardly, the MPL 12.5x12.5x5 / 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: 12.5 mm (length), 12.5 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 12.5x12.5x5 mm and a self-weight of 5.86 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros and cons of neodymium magnets.

Pros

Apart from their superior magnetic energy, neodymium magnets have these key benefits:

They do not lose strength, even after approximately ten years – the reduction in strength is only ~1% (theoretically),
They do not lose their magnetic properties even under strong external field,
In other words, due to the smooth finish of nickel, the element looks attractive,
Magnets possess maximum magnetic induction on the surface,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Thanks to the possibility of accurate shaping and customization to individualized solutions, NdFeB magnets can be modeled in a variety of geometric configurations, which increases their versatility,
Fundamental importance in advanced technology sectors – they are utilized in data components, motor assemblies, advanced medical instruments, as well as complex engineering applications.
Thanks to their power density, small magnets offer high operating force, in miniature format,

Cons

Problematic aspects of neodymium magnets: weaknesses and usage proposals

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of producing threads in the magnet and complex forms - preferred is a housing - mounting mechanism.
Health risk to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small elements of these magnets are able to complicate diagnosis medical in case of swallowing.
Due to complex production process, their price is higher than average,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

The specified lifting capacity represents the peak performance, measured under ideal test conditions, specifically:

on a block made of structural steel, perfectly concentrating the magnetic field
with a thickness of at least 10 mm
characterized by lack of roughness
under conditions of gap-free contact (metal-to-metal)
for force applied at a right angle (pull-off, not shear)
at ambient temperature room level

Magnet lifting force in use – key factors

In practice, the actual lifting capacity depends on a number of factors, listed from the most important:

Space between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
Direction of force – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
Plate thickness – too thin sheet causes magnetic saturation, causing part of the flux to be escaped into the air.
Material composition – different alloys reacts the same. High carbon content weaken the interaction with the magnet.
Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Warnings

Pinching danger

Big blocks can crush fingers in a fraction of a second. Under no circumstances put your hand between two strong magnets.

Skin irritation risks

A percentage of the population have a contact allergy to nickel, which is the standard coating for NdFeB magnets. Frequent touching might lead to an allergic reaction. We recommend wear safety gloves.

Handling rules

Use magnets consciously. Their huge power can surprise even professionals. Plan your moves and respect their force.

Electronic devices

Data protection: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, mechanical watches).

Fire risk

Machining of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Shattering risk

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets leads to them cracking into shards.

Demagnetization risk

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

Precision electronics

A strong magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Keep magnets close to a smartphone to avoid breaking the sensors.

ICD Warning

Patients with a heart stimulator have to keep an safe separation from magnets. The magnetic field can interfere with the operation of the implant.

This is not a toy

These products are not intended for children. Swallowing a few magnets can lead to them connecting inside the digestive tract, which poses a critical condition and requires urgent medical intervention.

Attention! Need more info? Read our article: Are neodymium magnets dangerous?

MPL 12.5x12.5x5 / N38 - lamellar magnet

Technical details - MPL 12.5x12.5x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - data

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

Table 2: Sliding force (vertical surface) MPL 12.5x12.5x5 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 12.5x12.5x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MPL 12.5x12.5x5 / N38

Table 5: Thermal resistance (stability) - thermal limit MPL 12.5x12.5x5 / N38

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

Table 7: Protective zones (implants) - warnings MPL 12.5x12.5x5 / N38

Table 8: Dynamics (kinetic energy) - collision effects MPL 12.5x12.5x5 / N38

Table 9: Corrosion resistance MPL 12.5x12.5x5 / N38

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

Table 11: Submerged application MPL 12.5x12.5x5 / N38

1. Shear force

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Sustainability

Force (pull)

Magnetic Induction

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Pros and cons of neodymium magnets.

Pros

Cons

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Magnet lifting force in use – key factors

Warnings

Pinching danger

Skin irritation risks

Handling rules

Electronic devices

Fire risk

Shattering risk

Demagnetization risk

Precision electronics

ICD Warning

This is not a toy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding force (vertical surface)
MPL 12.5x12.5x5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 12.5x12.5x5 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 12.5x12.5x5 / N38

Table 5: Thermal resistance (stability) - thermal limit
MPL 12.5x12.5x5 / N38

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

Table 7: Protective zones (implants) - warnings
MPL 12.5x12.5x5 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MPL 12.5x12.5x5 / N38

Table 9: Corrosion resistance
MPL 12.5x12.5x5 / N38

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

Table 11: Submerged application
MPL 12.5x12.5x5 / N38