MPL 12x10x4 / N38 - lamellar magnet - ujęcie 2

Product available Ships today (order by 14:00)

MPL 12x10x4 / 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 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

check 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

Can't decide what to choose?

Give us a call +48 22 499 98 98 alternatively contact us through form through our site.
Parameters and shape of a neodymium magnet can be reviewed with our our magnetic 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 analysis of the assembly - report

Presented values represent the result of a engineering calculation. Values were calculated on algorithms for the material Nd₂Fe₁₄B. Actual performance might slightly differ. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
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	medium risk
1 mm	2920 Gs 292.0 mT	2.54 kg / 5.60 lbs 2538.8 g / 24.9 N	medium risk
2 mm	2399 Gs 239.9 mT	1.71 kg / 3.78 lbs 1713.7 g / 16.8 N	low risk
3 mm	1919 Gs 191.9 mT	1.10 kg / 2.42 lbs 1096.3 g / 10.8 N	low risk
5 mm	1190 Gs 119.0 mT	0.42 kg / 0.93 lbs 421.6 g / 4.1 N	low risk
10 mm	392 Gs 39.2 mT	0.05 kg / 0.10 lbs 45.7 g / 0.4 N	low risk
15 mm	162 Gs 16.2 mT	0.01 kg / 0.02 lbs 7.8 g / 0.1 N	low risk
20 mm	80 Gs 8.0 mT	0.00 kg / 0.00 lbs 1.9 g / 0.0 N	low risk
30 mm	27 Gs 2.7 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	low risk
50 mm	7 Gs 0.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk

Magnetic force drops drastically per each millimeter of spacing. Remember that every additional insulation layer (e.g., contamination, paint, veneer) significantly reduces the pull force. Magnets operate most effectively during direct contact; gap weakens the power. See how quickly the parameters fall, when the product does not adhere flatly to the steel surface. When planning the mounting, eliminate unnecessary gaps.

Table 2: Shear load (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 estimated force needed to initiate the slippage of the magnet down against a vertical steel wall (considering standard friction coefficient). This parameter varies with the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
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 mounting a magnet on a upright plane (e.g., a board), it you can count on barely approx. 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient cause that products slip easier than they pull off. Want to create a vertical fastening? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the holder will slip down under a much lighter cargo. Application of an anti-slip layer can effectively increase the grip.

Table 4: Material efficiency (substrate influence) - 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 too thin steel is incapable of take in the full magnetic flux, which wastes potential of the holder. Should you attach a powerful product to a too thin substrate, the field will penetrate right through and the holding will be smaller. To achieve full efficiency of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the holder holds weaker. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (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

Standard neodymium magnets change their properties strength past the thermal threshold. Watch out for overheating – high temperature can permanently destroy this product. As the temperature rises, the magnet's force momentarily drops. Refrain from using this magnet near heat sources exceeding its working range. Exceeding the critical threshold will cause destruction of magnetism.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than taller cylinders. Warning indicator in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 12x10x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (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 sheet combination. The connection of magnet-to-magnet produces a massive flux and a further horizon of action. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Remember that when bringing together two magnets, the impact force is huge. The repulsion force is marginally weaker than the attraction, but still large.
*Flux density between like poles drops to ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Estimates refer to friction force of dual identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
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
Phone / Smartphone	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

Powerful magnet radiation poses a large risk to electronics and pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Notice: the unseen radiation acts through matter and plastic. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
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

NdFeB products are delicate – a collision with steel can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Kinetic force can destroy the magnet or painful pinches to fingers. Be sure to control the product during mounting so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Use safety goggles when working with powerful specimens.

Table 9: Anti-corrosion coating durability
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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
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 emitted by the magnet pole. Essential parameter when building generators as well as sensors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
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: 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains merely ~20% of its max power.

2. Plate thickness effect

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

3. Heat tolerance

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.43

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 and environmental data

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%

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

Pulling force

Kilograms (kg)

Newtons (N)

lbs

Magnetic Induction

Gauss (Gs)

Insert a value in any box, to see all other values change in real-time.

Other offers

Product available Ships today (order by 14:00)

SMZR 25x175 / N52 - magnetic separator with handle

492.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MP 25x12.5x5 / N38 - ring magnet

6.20 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

SMZR 32x225 / N52 - magnetic separator with handle

725.70 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 20x10x5 / N38 - lamellar magnet

4.54 ZŁ brutto / pcs

Model MPL 12x10x4 / N38 features a low profile and industrial pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 33.88 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

Separating block 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 3.45 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.

They constitute a key element in the production of wind generators and material handling systems. 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. 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. 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 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 power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:

Their magnetic field remains stable, and after around ten years it drops only by ~1% (theoretically),
Magnets effectively defend themselves against demagnetization caused by foreign field sources,
In other words, due to the aesthetic surface of nickel, the element becomes visually attractive,
The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
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...
Thanks to flexibility in forming and the ability to adapt to complex applications,
Significant place in electronics industry – they are used in data components, drive modules, medical devices, and other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:

At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
NdFeB magnets lose strength 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
They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mount, due to difficulties in producing nuts inside the magnet and complex forms.
Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products can be problematic in diagnostics medical when they are in the body.
Due to complex production process, their price is higher than average,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Magnet power is the result of a measurement for the most favorable conditions, taking into account:

with the contact of a yoke made of special test steel, guaranteeing maximum field concentration
whose thickness reaches at least 10 mm
characterized by even structure
without any clearance between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at conditions approx. 20°C

Key elements affecting lifting force

During everyday use, the actual lifting capacity results from many variables, presented from most significant:

Clearance – existence of foreign body (paint, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures lower magnetic permeability and lifting capacity.
Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
Operating temperature – neodymium magnets 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 conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet and the plate decreases the load capacity.

Safety rules for work with NdFeB magnets

Protect data

Powerful magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Crushing risk

Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Heat sensitivity

Control the heat. Heating the magnet to high heat will ruin its magnetic structure and pulling force.

Choking Hazard

Always keep magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are tragic.

Do not underestimate power

Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Avoid contact if allergic

Studies show that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, avoid direct skin contact and choose coated magnets.

Material brittleness

Despite the nickel coating, the material is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Implant safety

Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to handle the magnets.

Fire risk

Drilling and cutting of NdFeB material poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

GPS Danger

Note: neodymium magnets produce a field that interferes with precision electronics. Maintain a separation from your mobile, tablet, and GPS.

Important! Need more info? Check our post: Why are neodymium magnets dangerous?

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 analysis of the assembly - report

Table 1: Static force (pull vs distance) - characteristics MPL 12x10x4 / N38

Table 2: Shear load (wall) MPL 12x10x4 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 12x10x4 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 12x10x4 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MPL 12x10x4 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 12x10x4 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MPL 12x10x4 / N38

Table 8: Collisions (kinetic energy) - collision effects MPL 12x10x4 / N38

Table 9: Anti-corrosion coating durability MPL 12x10x4 / N38

Table 10: Electrical data (Pc) MPL 12x10x4 / N38

Table 11: Hydrostatics and buoyancy MPL 12x10x4 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Heat tolerance

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

Chemical composition

Environmental data

Pulling force

Magnetic Induction

Other offers

SMZR 25x175 / N52 - magnetic separator with handle

MP 25x12.5x5 / N38 - ring magnet

SMZR 32x225 / N52 - magnetic separator with handle

MPL 20x10x5 / N38 - lamellar magnet

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Disadvantages

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Key elements affecting lifting force

Safety rules for work with NdFeB magnets

Protect data

Crushing risk

Heat sensitivity

Choking Hazard

Do not underestimate power

Avoid contact if allergic

Material brittleness

Implant safety

Fire risk

GPS Danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MPL 12x10x4 / N38

Table 2: Shear load (wall)
MPL 12x10x4 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 12x10x4 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 12x10x4 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 12x10x4 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 12x10x4 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 12x10x4 / N38

Table 8: Collisions (kinetic energy) - collision effects
MPL 12x10x4 / N38

Table 9: Anti-corrosion coating durability
MPL 12x10x4 / N38

Table 10: Electrical data (P_c)
MPL 12x10x4 / N38

Table 11: Hydrostatics and buoyancy
MPL 12x10x4 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.