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

Product available Ships today (order by 14:00)

MPL 12.5x12.5x5 / 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 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

see technical data »

2.83 ZŁ with VAT / pcs + price for transport

2.30 ZŁ net + 23% VAT / pcs

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Strength along with form of neodymium magnets can be estimated on our magnetic calculator.

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Technical specification 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

Engineering modeling of the assembly - report

The following information represent the outcome of a physical simulation. Values rely on models for the material Nd₂Fe₁₄B. Operational performance may deviate from the simulation results. Treat these data as a preliminary roadmap during assembly planning.

Table 1: Static pull force (pull vs gap) - interaction chart
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	warning
1 mm	3156 Gs 315.6 mT	3.70 kg / 8.17 LBS 3704.2 g / 36.3 N	warning
2 mm	2671 Gs 267.1 mT	2.65 kg / 5.85 LBS 2653.8 g / 26.0 N	warning
3 mm	2211 Gs 221.1 mT	1.82 kg / 4.01 LBS 1817.7 g / 17.8 N	weak grip
5 mm	1464 Gs 146.4 mT	0.80 kg / 1.76 LBS 797.6 g / 7.8 N	weak grip
10 mm	538 Gs 53.8 mT	0.11 kg / 0.24 LBS 107.6 g / 1.1 N	weak grip
15 mm	234 Gs 23.4 mT	0.02 kg / 0.05 LBS 20.4 g / 0.2 N	weak grip
20 mm	119 Gs 11.9 mT	0.01 kg / 0.01 LBS 5.3 g / 0.1 N	weak grip
30 mm	42 Gs 4.2 mT	0.00 kg / 0.00 LBS 0.7 g / 0.0 N	weak grip
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Magnetic force drops sharply per each millimeter of spacing. Note that even the smallest gap (e.g., contamination, paint, veneer) noticeably diminishes the holding power. Magnets hold most effectively at the point of direct contact; air break kills the power. See how flashily the load capacity plummet, when the product does not touch tightly to the metal substrate. When designing the mounting, avoid redundant distances.

Table 2: Sliding hold (wall)
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

The following data shows the approximate holding capacity required to initiate the downward movement of the magnet downwards along a vertical steel plate (assuming typical friction coefficient). This parameter varies with the gap size between the magnet and the metal.

Table 3: Vertical assembly (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 holder on a upright plane (e.g., a car body), it will maintain barely about 20%-30% of its maximum pull force. Gravity and a low friction coefficient mean that holders slip easier than they detach. Want to create a wall mount? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the magnet will slide down under a much lighter cargo. Using a rubber layer can effectively raise the stability.

Table 4: Material efficiency (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 too thin steel cannot focus the entire magnetic field, which squanders power of the holder. Should you mount a strong magnet to a too thin substrate, the field will pass right through and the holding will be smaller. To utilize full efficiency of this magnet's power, you need a suitably thick element of steel. The material oversaturation means that on thin elements (e.g., appliance housings), the magnet works worse. We recommend selecting the steel cross-section from these parameters.

Table 5: Working in heat (material behavior) - 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

Classic neodymiums lose strength above the temperature limit. Avoid high temperatures – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's capacity momentarily decreases. Refrain from using this product near heat sources exceeding its operating temperature limit. Exceeding the critical threshold will cause destruction of magnetic properties.

*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than taller cylinders. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 12.5x12.5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding 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 magnets interact from a wider radius than a magnet and steel setup. Such a system of two magnets produces a massive flux and a further horizon of action. Want to build a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is massive. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Note: Calculations apply to shear force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

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
Timepiece	20 Gs (2.0 mT)	4.0 cm
Phone / Smartphone	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

Powerful magnet radiation is a serious hazard to electronic devices and medical implants. These neodymiums generate a flux that destroys function of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Increased vigilance must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (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 strong collision with metal causes immediate chipping. Watch the impact speed – a magnet released freely turns into a projectile. Striking energy can cause material chips or injury to skin. Be sure to control the product during bringing near metal so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Use safety goggles when working with powerful specimens.

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)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. 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)

Total magnetic flux passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient 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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains merely a fraction of its perpendicular strength.

2. Plate thickness effect

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

3. Temperature resistance

*For standard magnets, the max working temp 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.

Engineering data and GPSR

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%

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

Measurement Calculator

Pulling force

Force in kg

Newtons (N)

lbs

Magnetic Induction

Induction (Gs)

Tesla (T)

Put a figure in a single field to see the conversion in the other fields immediately.

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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 the highest quality connection. As a magnetic bar with high power (approx. 4.84 kg), this product is available immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

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. 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: 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.

Strengths and weaknesses of neodymium magnets.

Pros

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

They retain full power for nearly 10 years – the loss is just ~1% (based on simulations),
They retain their magnetic properties even under external field action,
The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the top side of the magnet turns out to be impressive,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures reaching 230°C and above...
In view of the option of precise shaping and customization to individualized needs, neodymium magnets can be created in a wide range of shapes and sizes, which amplifies use scope,
Universal use in high-tech industry – they are utilized in computer drives, electric drive systems, medical devices, as well as industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

What to avoid - cons of neodymium magnets: tips and applications.

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as 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 advise using waterproof magnets e.g. in rubber, plastic
Due to limitations in creating nuts and complex forms in magnets, we recommend using a housing - magnetic mechanism.
Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Maximum magnetic pulling force – what affects it?

The force parameter is a measurement result executed under standard conditions:

using a base made of high-permeability steel, acting as a circuit closing element
with a cross-section no less than 10 mm
with an polished contact surface
without any air gap between the magnet and steel
during pulling in a direction vertical to the plane
at standard ambient temperature

Determinants of lifting force in real conditions

It is worth knowing that the magnet holding may be lower influenced by the following factors, in order of importance:

Air gap (between the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Steel grade – ideal substrate is high-permeability steel. Stainless steels may have worse magnetic properties.
Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was measured using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate lowers the holding force.

Safe handling of neodymium magnets

Choking Hazard

These products are not intended for children. Swallowing a few magnets may result in them attracting across intestines, which poses a direct threat to life and necessitates immediate surgery.

Caution required

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Magnetic media

Do not bring magnets close to a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.

Combustion hazard

Powder generated during machining of magnets is flammable. Do not drill into magnets unless you are an expert.

ICD Warning

For implant holders: Powerful magnets affect medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.

Compass and GPS

GPS units and smartphones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Operating temperature

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

Bone fractures

Big blocks can crush fingers instantly. Do not put your hand between two attracting surfaces.

Magnet fragility

NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Impact of two magnets leads to them shattering into small pieces.

Metal Allergy

A percentage of the population experience a sensitization to nickel, which is the typical protective layer for neodymium magnets. Extended handling can result in dermatitis. We strongly advise use safety gloves.

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

MPL 12.5x12.5x5 / N38 - lamellar magnet

Technical specification 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

Engineering modeling of the assembly - report

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

Table 2: Sliding hold (wall) MPL 12.5x12.5x5 / N38

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

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

Table 5: Working in heat (material behavior) - thermal limit MPL 12.5x12.5x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 12.5x12.5x5 / N38

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

Table 8: Collisions (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. Sliding resistance

2. Plate thickness effect

3. Temperature resistance

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

Chemical composition

Sustainability

Pulling force

Magnetic Induction

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Strengths and weaknesses of neodymium magnets.

Pros

Limitations

Lifting parameters

Maximum magnetic pulling force – what affects it?

Determinants of lifting force in real conditions

Safe handling of neodymium magnets

Choking Hazard

Caution required

Magnetic media

Combustion hazard

ICD Warning

Compass and GPS

Operating temperature

Bone fractures

Magnet fragility

Metal Allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding hold (wall)
MPL 12.5x12.5x5 / N38

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

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

Table 5: Working in heat (material behavior) - thermal limit
MPL 12.5x12.5x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 12.5x12.5x5 / N38

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

Table 8: Collisions (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