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, 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

product specifications »

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Specifications along with structure of a neodymium magnet can be calculated using our magnetic calculator.

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Product card - 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 - technical parameters

Presented information represent the direct effect of a mathematical simulation. Values rely on models for the material Nd₂Fe₁₄B. Actual parameters might slightly deviate from the simulation results. Please consider these calculations as a supplementary guide 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	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	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 decreases significantly per each millimeter of gap. Remember that even a very thin break (e.g., dirt, paint, rust) strongly weakens the grip. Neodymiums hold most effectively at the point of direct contact; air break nullifies the force. Notice how rapidly the load capacity drop, when the product does not adhere flatly to the metal substrate. When designing the mounting, avoid redundant distances.

Table 2: Vertical hold (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

The following data calculates the theoretical shear load necessary to start the shifting of the magnet downwards along a upright steel plate (considering standard friction coefficient). This value depends on the distance between the magnet and the metal.

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 placing a holder on a vertical plane (e.g., a board), it will only hold barely approx. 20%-30% of its maximum pull force. Gravity and a weak degree of grip influence the fact that products move down faster than they pull off. Planning a vertical fastening? Remember that the shear force is much weaker than the maximum static pull force. On a smooth steel, the magnet will slip down under a noticeably lighter weight. Using a rubber coating can drastically improve the result.

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 thin metal plate is not enough to conduct the entire magnetic field, which squanders power of the magnet. Should you install a neodymium to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this magnet's potential, you need a suitably thick element of metal. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the magnet shows lower pull force. We advise picking the steel dimension based on the following data.

Table 5: Working in heat (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

Classic neodymiums change their properties parameters past the thermal threshold. Protect against heat – heat can permanently destroy this product. With increasing heat, the neodymium's force briefly drops. Refrain from using this product close to heaters higher than its safe range. Too high temperature will cause permanent loss of magnetic properties.

*Important note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress compared to rod magnets. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field range
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 strong neodymiums interact from a significantly greater distance than a magnet and steel setup. Such a system of magnet-to-magnet produces a massive flux and a further horizon of operation. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint between the magnets (due to field cancellation).
Important: Calculations apply to friction force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - 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

A strong magnetic field is a serious hazard to IT equipment as well as pacemakers. These neodymiums generate a field that prevents correct functioning of digital equipment. Notice: the unseen radiation penetrates the body and housings. Special caution must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (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 delicate – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't hit with great force 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: Anti-corrosion coating 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

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 emitted by the pole surface. Essential parameter when building generators as well as sensors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
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: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) significantly limits the holding force.

3. Power loss vs temp

*For standard magnets, the critical 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

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%

Environmental data

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

Kilograms (kg)

Force (N)

Force in lbs

Magnetic Induction

Simply complete one field, and the tool calculate the rest automatically.

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This product is a very powerful 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 block magnet with high power (approx. 4.84 kg), this product is available immediately from our warehouse in Poland. Additionally, 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. 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 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.

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 workshop organization 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. 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).

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. 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 protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Strengths

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

They retain attractive force for almost 10 years – the loss is just ~1% (in theory),
They retain their magnetic properties even under external field action,
In other words, due to the reflective finish of gold, the element is aesthetically pleasing,
Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
In view of the ability of accurate forming and adaptation to specialized requirements, magnetic components can be created in a wide range of geometric configurations, which amplifies use scope,
Universal use in modern technologies – they are used in computer drives, motor assemblies, diagnostic systems, also other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Characteristics of disadvantages 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.
When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in realizing threads and complicated shapes in magnets, we recommend using a housing - magnetic holder.
Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Furthermore, small components of these magnets can complicate diagnosis medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

Magnetic strength at its maximum – what it depends on?

The declared magnet strength refers to the peak performance, obtained under ideal test conditions, namely:

using a plate made of mild steel, serving as a magnetic yoke
whose transverse dimension equals approx. 10 mm
with an polished contact surface
without the slightest clearance between the magnet and steel
for force acting at a right angle (in the magnet axis)
in stable room temperature

Determinants of lifting force in real conditions

Real force impacted by working environment parameters, mainly (from most important):

Air gap (between the magnet and the metal), since even a tiny clearance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
Angle of force application – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
Heat – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with NdFeB magnets

Precision electronics

GPS units and mobile phones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Adults only

Adult use only. Tiny parts pose a choking risk, causing severe trauma. Store out of reach of children and animals.

Skin irritation risks

It is widely known that the nickel plating (the usual finish) is a common allergen. If you have an allergy, refrain from touching magnets with bare hands or choose encased magnets.

Danger to pacemakers

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Conscious usage

Handle magnets with awareness. Their huge power can shock even professionals. Stay alert and respect their power.

Physical harm

Big blocks can break fingers instantly. Never put your hand betwixt two strong magnets.

Threat to electronics

Data protection: Strong magnets can damage data carriers and delicate electronics (heart implants, medical aids, mechanical watches).

Eye protection

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets leads to them breaking into small pieces.

Operating temperature

Do not overheat. NdFeB magnets are sensitive to temperature. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).

Fire risk

Drilling and cutting of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Warning! Need more info? Check our post: Are neodymium magnets dangerous?

MPL 12.5x12.5x5 / N38 - lamellar magnet

Product card - 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 - technical parameters

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

Table 2: Vertical hold (vertical surface) MPL 12.5x12.5x5 / N38

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

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

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

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

Table 9: Anti-corrosion coating durability MPL 12.5x12.5x5 / N38

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

Table 11: Hydrostatics and buoyancy MPL 12.5x12.5x5 / N38

1. Shear force

2. Efficiency vs thickness

3. Power loss vs temp

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

Material specification

Environmental data

Pulling force

Magnetic Induction

See also products

MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet

UMP 94x40 [3xM10] GW F550 Silver Black Lina / N52 - search holder

UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder

UMGW 48x24x11.5 [M8] GW / N38 - magnetic holder internal thread

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Weaknesses

Lifting parameters

Magnetic strength at its maximum – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with NdFeB magnets

Precision electronics

Adults only

Skin irritation risks

Danger to pacemakers

Conscious usage

Physical harm

Threat to electronics

Eye protection

Operating temperature

Fire risk

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: Vertical hold (vertical surface)
MPL 12.5x12.5x5 / N38

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

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

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

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

Table 9: Anti-corrosion coating durability
MPL 12.5x12.5x5 / N38

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

Table 11: Hydrostatics and buoyancy
MPL 12.5x12.5x5 / N38

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.