MPL 12x10x4 / N38 - lamellar magnet - ujęcie 2

Product available Ships tomorrow

MPL 12x10x4 / 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 020118

GTIN/EAN: 5906301811244

5.00

length

12 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

3.6 g

Magnetization Direction

↑ axial

Load capacity

3.45 kg / 33.88 N

Magnetic Induction

340.59 mT / 3406 Gs

Coating

[NiCuNi] Nickel

view technical specifications »

1.697 ZŁ with VAT / pcs + price for transport

1.380 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

1.380 ZŁ

1.697 ZŁ

price from 450 pcs

1.297 ZŁ

1.596 ZŁ

price from 1850 pcs

1.214 ZŁ

1.494 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Do you have questions?

Call us +48 888 99 98 98 otherwise drop us a message via our online form the contact section.
Strength along with structure of a magnet can be calculated with our modular calculator.

Orders placed before 14:00 will be shipped the same business day.

Physical properties - MPL 12x10x4 / N38 - lamellar magnet

Specification / characteristics - MPL 12x10x4 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020118
GTIN/EAN	5906301811244
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 mm [±0,1 mm]
Width	10 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	3.6 g
Magnetization Direction	↑ axial
Load capacity ~ ?	3.45 kg / 33.88 N
Magnetic Induction ~ ?	340.59 mT / 3406 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 12x10x4 / 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 assembly - technical parameters

Presented values represent the direct effect of a engineering analysis. Results are based on algorithms for the material Nd₂Fe₁₄B. Operational parameters may deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (force vs gap) - power drop
MPL 12x10x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3404 Gs 340.4 mT	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N	warning
1 mm	2920 Gs 292.0 mT	2.54 kg / 5.60 LBS 2538.8 g / 24.9 N	warning
2 mm	2399 Gs 239.9 mT	1.71 kg / 3.78 LBS 1713.7 g / 16.8 N	weak grip
3 mm	1919 Gs 191.9 mT	1.10 kg / 2.42 LBS 1096.3 g / 10.8 N	weak grip
5 mm	1190 Gs 119.0 mT	0.42 kg / 0.93 LBS 421.6 g / 4.1 N	weak grip
10 mm	392 Gs 39.2 mT	0.05 kg / 0.10 LBS 45.7 g / 0.4 N	weak grip
15 mm	162 Gs 16.2 mT	0.01 kg / 0.02 LBS 7.8 g / 0.1 N	weak grip
20 mm	80 Gs 8.0 mT	0.00 kg / 0.00 LBS 1.9 g / 0.0 N	weak grip
30 mm	27 Gs 2.7 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	weak grip
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically per each millimeter of distance. Keep in mind that even the smallest gap (e.g., contamination, paint, rust) strongly weakens the grip. Magnetic products work optimally in perfect adhesion; distance drastically cuts the power. See how quickly the parameters fall, when the magnet does not adhere flatly to the metal substrate. When planning the mounting, avoid redundant distances.

Table 2: Vertical force (wall)
MPL 12x10x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.69 kg / 1.52 LBS 690.0 g / 6.8 N
1 mm	Stal (~0.2)	0.51 kg / 1.12 LBS 508.0 g / 5.0 N
2 mm	Stal (~0.2)	0.34 kg / 0.75 LBS 342.0 g / 3.4 N
3 mm	Stal (~0.2)	0.22 kg / 0.49 LBS 220.0 g / 2.2 N
5 mm	Stal (~0.2)	0.08 kg / 0.19 LBS 84.0 g / 0.8 N
10 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 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 presents the approximate shear load necessary to start the shifting of the magnet down against a upright steel wall (considering standard friction coefficient). This parameter varies with the separation distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 12x10x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.04 kg / 2.28 LBS 1035.0 g / 10.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.69 kg / 1.52 LBS 690.0 g / 6.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.35 kg / 0.76 LBS 345.0 g / 3.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.73 kg / 3.80 LBS 1725.0 g / 16.9 N

When hanging a magnet on a vertical plane (e.g., a car body), it you can count on only about 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient cause that holders slide down easier than they pop off the substrate. Planning a vertical fastening? Consider that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a noticeably lighter load. Application of an anti-slip coating can drastically increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 12x10x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.35 kg / 0.76 LBS 345.0 g / 3.4 N
1 mm	25%	0.86 kg / 1.90 LBS 862.5 g / 8.5 N
2 mm	50%	1.73 kg / 3.80 LBS 1725.0 g / 16.9 N
3 mm	75%	2.59 kg / 5.70 LBS 2587.5 g / 25.4 N
5 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N
10 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N
11 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N
12 mm	100%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N

A thin sheet cannot take in the entire magnetic field, which squanders power of the holder. If you install a neodymium to a weak sheet, the magnetism will pass right through and the attraction force will be weaker. To utilize the maximum of this magnet's power, you require a sufficiently solid backing of steel. The saturation phenomenon means that on delicate walls (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (material behavior) - thermal limit
MPL 12x10x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.45 kg / 7.61 LBS 3450.0 g / 33.8 N	OK
40 °C	-2.2%	3.37 kg / 7.44 LBS 3374.1 g / 33.1 N	OK
60 °C	-4.4%	3.30 kg / 7.27 LBS 3298.2 g / 32.4 N
80 °C	-6.6%	3.22 kg / 7.10 LBS 3222.3 g / 31.6 N
100 °C	-28.8%	2.46 kg / 5.42 LBS 2456.4 g / 24.1 N

Classic neodymiums lose parameters past the thermal threshold. Watch out for overheating – excessive heat can permanently destroy this product. With every degree above norm, the magnet's force momentarily lowers. Avoid using this product close to heaters higher than its safe range. Exceeding the critical threshold will cause irreversible degradation of magnetic properties.

*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than long magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 12x10x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	8.57 kg / 18.90 LBS 4 915 Gs	1.29 kg / 2.84 LBS 1286 g / 12.6 N	N/A
1 mm	7.46 kg / 16.44 LBS 6 349 Gs	1.12 kg / 2.47 LBS 1118 g / 11.0 N	6.71 kg / 14.79 LBS ~0 Gs
2 mm	6.31 kg / 13.91 LBS 5 841 Gs	0.95 kg / 2.09 LBS 946 g / 9.3 N	5.68 kg / 12.52 LBS ~0 Gs
3 mm	5.23 kg / 11.53 LBS 5 317 Gs	0.78 kg / 1.73 LBS 784 g / 7.7 N	4.71 kg / 10.37 LBS ~0 Gs
5 mm	3.42 kg / 7.55 LBS 4 302 Gs	0.51 kg / 1.13 LBS 513 g / 5.0 N	3.08 kg / 6.79 LBS ~0 Gs
10 mm	1.05 kg / 2.31 LBS 2 380 Gs	0.16 kg / 0.35 LBS 157 g / 1.5 N	0.94 kg / 2.08 LBS ~0 Gs
20 mm	0.11 kg / 0.25 LBS 784 Gs	0.02 kg / 0.04 LBS 17 g / 0.2 N	0.10 kg / 0.23 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 90 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 55 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 36 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 25 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 18 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 13 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 combination. The connection of magnet-to-magnet produces a massive flux and a larger range of performance. Planning to create a strong closure? Utilize two neodymiums instead of one magnet and a steel. Be careful that when attracting two neodymiums, the collision energy is massive. The repulsion force is marginally weaker than the attraction, but still large.
*Flux density for N-N configuration reaches ~0 Gs at the geometric center of the gap (due to field cancellation).
Important: Figures refer to sliding force of dual matching magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MPL 12x10x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Timepiece	20 Gs (2.0 mT)	3.5 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a real danger to electronics and pacemakers. These magnets generate a field that destroys function of digital equipment. Remember: the invisible magnetic field acts through matter and housings. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MPL 12x10x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.48 km/h (8.74 m/s)	0.14 J
30 mm	54.08 km/h (15.02 m/s)	0.41 J
50 mm	69.81 km/h (19.39 m/s)	0.68 J
100 mm	98.73 km/h (27.42 m/s)	1.35 J

Magnetic elements are very brittle – a violent impact against metal risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Impact energy can cause material chips or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when working with powerful specimens.

Table 9: Surface protection spec
MPL 12x10x4 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MPL 12x10x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	4 295 Mx	42.9 µWb
P_c Coefficient	0.43	Low (Flat)

Flux value passing through the magnet pole. Essential parameter when building generators as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
MPL 12x10x4 / N38

Environment	Effective steel pull	Effect
Air (land)	3.45 kg	Standard
Water (riverbed)	3.95 kg (+0.50 kg buoyancy gain)	+14.5%

Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Note: On a vertical wall, the magnet retains just a fraction of its nominal pull.

2. Efficiency vs thickness

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

3. Power loss vs temp

*For N38 grade, 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) = 0.43

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 and environmental data

Elemental analysis

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

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: 020118-2026

Quick Unit Converter

Magnet pull force

Kilograms (kg)

Force in lbs

Magnetic Induction

Gauss (Gs)

Tesla (T)

Simply fill in one field, to let the calculator compute the rest for you.

Check out more proposals

Product available Ships tomorrow

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

59.96 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 40x18x10 / N38 - lamellar magnet

30.75 ZŁ brutto / pcs

Product available Ships tomorrow

MW 70x50 / N38 - cylindrical magnet

516.60 ZŁ brutto / pcs

Product available Ships tomorrow

MP 36.2x11/6x7.5 / N38 - ring magnet

35.01 ZŁ brutto / pcs

This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 12x10x4 mm and a weight of 3.6 g, guarantees the highest quality connection. As a block magnet with high power (approx. 3.45 kg), this product is available off-the-shelf 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 shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 3.45 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 12x10x4 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 3.45 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.

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. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

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 (12x10 mm), which is ideal for flat mounting. 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 mm (length), 10 mm (width), and 4 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 3.45 kg (force ~33.88 N), which, with such a flat shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Pros

Besides their stability, neodymium magnets are valued for these benefits:

They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (in testing),
They are extremely resistant to demagnetization induced by external disturbances,
Thanks to the smooth finish, the plating of Ni-Cu-Ni, gold, or silver gives an aesthetic appearance,
They feature high magnetic induction at the operating surface, making them more effective,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Possibility of custom forming and optimizing to complex requirements,
Fundamental importance in innovative solutions – they are utilized in hard drives, electric drive systems, diagnostic systems, also other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
Due to limitations in creating nuts and complex forms in magnets, we recommend using a housing - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical after entering the body.
Due to neodymium price, their price exceeds standard values,

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Breakaway force was determined for optimal configuration, assuming:

using a base made of mild steel, serving as a magnetic yoke
possessing a thickness of min. 10 mm to ensure full flux closure
with an ideally smooth touching surface
with zero gap (without coatings)
for force acting at a right angle (in the magnet axis)
in neutral thermal conditions

Key elements affecting lifting force

In real-world applications, the actual lifting capacity depends on many variables, presented from crucial:

Gap between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Direction of force – highest force is reached only during perpendicular pulling. The shear force of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Plate material – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and holding force.
Surface quality – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Warnings

Heat warning

Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Electronic hazard

Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.

Powerful field

Handle magnets with awareness. Their huge power can shock even experienced users. Plan your moves and do not underestimate their power.

Combustion hazard

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Nickel coating and allergies

A percentage of the population experience a sensitization to Ni, which is the standard coating for neodymium magnets. Extended handling may cause dermatitis. We strongly advise wear safety gloves.

Do not give to children

Absolutely store magnets away from children. Risk of swallowing is high, and the effects of magnets connecting inside the body are very dangerous.

Magnetic interference

Note: rare earth magnets produce a field that disrupts sensitive sensors. Maintain a safe distance from your mobile, tablet, and navigation systems.

ICD Warning

For implant holders: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Bodily injuries

Protect your hands. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Magnet fragility

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Caution! More info about risks in the article: Magnet Safety Guide.

MPL 12x10x4 / N38 - lamellar magnet

Physical properties - MPL 12x10x4 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - technical parameters

Table 1: Static pull force (force vs gap) - power drop MPL 12x10x4 / N38

Table 2: Vertical force (wall) MPL 12x10x4 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 12x10x4 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MPL 12x10x4 / N38

Table 5: Working in heat (material behavior) - thermal limit MPL 12x10x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 12x10x4 / N38

Table 7: Protective zones (implants) - warnings MPL 12x10x4 / N38

Table 8: Dynamics (cracking risk) - warning MPL 12x10x4 / N38

Table 9: Surface protection spec MPL 12x10x4 / N38

Table 10: Construction data (Flux) MPL 12x10x4 / N38

Table 11: Submerged application MPL 12x10x4 / N38

1. Shear force

2. Efficiency vs thickness

3. Power loss vs temp

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

Elemental analysis

Environmental data

Magnet pull force

Magnetic Induction

Check out more proposals

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

MPL 40x18x10 / N38 - lamellar magnet

MW 70x50 / N38 - cylindrical magnet

MP 36.2x11/6x7.5 / N38 - ring magnet

Pros as well as cons of Nd2Fe14B magnets.

Pros

Disadvantages

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Key elements affecting lifting force

Warnings

Heat warning

Electronic hazard

Powerful field

Combustion hazard

Nickel coating and allergies

Do not give to children

Magnetic interference

ICD Warning

Bodily injuries

Magnet fragility

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MPL 12x10x4 / N38

Table 2: Vertical force (wall)
MPL 12x10x4 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 12x10x4 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 12x10x4 / N38

Table 5: Working in heat (material behavior) - thermal limit
MPL 12x10x4 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 12x10x4 / N38

Table 7: Protective zones (implants) - warnings
MPL 12x10x4 / N38

Table 8: Dynamics (cracking risk) - warning
MPL 12x10x4 / N38

Table 9: Surface protection spec
MPL 12x10x4 / N38

Table 10: Construction data (Flux)
MPL 12x10x4 / N38

Table 11: Submerged application
MPL 12x10x4 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.