Product available Ships tomorrow

MPL 45x25x10 / 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 020164

GTIN/EAN: 5906301811701

5.00

length

45 mm [±0,1 mm]

Width

25 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

84.38 g

Magnetization Direction

↑ axial

Load capacity

28.48 kg / 279.40 N

Magnetic Induction

306.29 mT / 3063 Gs

Coating

[NiCuNi] Nickel

check parameters »

35.01 ZŁ with VAT / pcs + price for transport

28.46 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

28.46 ZŁ

35.01 ZŁ

price from 30 pcs

26.75 ZŁ

32.91 ZŁ

price from 90 pcs

25.04 ZŁ

30.81 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Do you have a dilemma?

Call us now +48 888 99 98 98 alternatively send us a note through inquiry form the contact form page.
Force along with appearance of a magnet can be verified with our modular calculator.

Same-day processing for orders placed before 14:00.

Technical of the product - MPL 45x25x10 / N38 - lamellar magnet

Specification / characteristics - MPL 45x25x10 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020164
GTIN/EAN	5906301811701
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	45 mm [±0,1 mm]
Width	25 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	84.38 g
Magnetization Direction	↑ axial
Load capacity ~ ?	28.48 kg / 279.40 N
Magnetic Induction ~ ?	306.29 mT / 3063 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 45x25x10 / 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 simulation of the product - report

The following data constitute the outcome of a physical simulation. Results are based on models for the material Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Please consider these calculations as a reference point for designers.

Table 1: Static force (force vs distance) - power drop
MPL 45x25x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3062 Gs 306.2 mT	28.48 kg / 62.79 lbs 28480.0 g / 279.4 N	crushing
1 mm	2918 Gs 291.8 mT	25.86 kg / 57.00 lbs 25856.7 g / 253.7 N	crushing
2 mm	2760 Gs 276.0 mT	23.13 kg / 51.00 lbs 23133.2 g / 226.9 N	crushing
3 mm	2595 Gs 259.5 mT	20.45 kg / 45.08 lbs 20449.5 g / 200.6 N	crushing
5 mm	2261 Gs 226.1 mT	15.53 kg / 34.23 lbs 15525.8 g / 152.3 N	crushing
10 mm	1529 Gs 152.9 mT	7.10 kg / 15.64 lbs 7096.1 g / 69.6 N	warning
15 mm	1018 Gs 101.8 mT	3.15 kg / 6.94 lbs 3147.4 g / 30.9 N	warning
20 mm	688 Gs 68.8 mT	1.44 kg / 3.17 lbs 1439.4 g / 14.1 N	low risk
30 mm	340 Gs 34.0 mT	0.35 kg / 0.77 lbs 350.8 g / 3.4 N	low risk
50 mm	111 Gs 11.1 mT	0.04 kg / 0.08 lbs 37.1 g / 0.4 N	low risk

Magnetic force decreases drastically per each millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, paint, dust) noticeably weakens the grip. Neodymiums operate optimally in perfect adhesion; gap drastically cuts the force. See how rapidly the pull force fall, when the product does not adhere flatly to the metal substrate. When planning the mounting, discard redundant distances.

Table 2: Slippage capacity (wall)
MPL 45x25x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	5.70 kg / 12.56 lbs 5696.0 g / 55.9 N
1 mm	Stal (~0.2)	5.17 kg / 11.40 lbs 5172.0 g / 50.7 N
2 mm	Stal (~0.2)	4.63 kg / 10.20 lbs 4626.0 g / 45.4 N
3 mm	Stal (~0.2)	4.09 kg / 9.02 lbs 4090.0 g / 40.1 N
5 mm	Stal (~0.2)	3.11 kg / 6.85 lbs 3106.0 g / 30.5 N
10 mm	Stal (~0.2)	1.42 kg / 3.13 lbs 1420.0 g / 13.9 N
15 mm	Stal (~0.2)	0.63 kg / 1.39 lbs 630.0 g / 6.2 N
20 mm	Stal (~0.2)	0.29 kg / 0.63 lbs 288.0 g / 2.8 N
30 mm	Stal (~0.2)	0.07 kg / 0.15 lbs 70.0 g / 0.7 N
50 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N

The table below presents the approximate weight limit required to cause the downward movement of the magnet downwards along a upright steel plate (assuming standard friction). The holding force is relative to the gap size between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 45x25x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	8.54 kg / 18.84 lbs 8544.0 g / 83.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	5.70 kg / 12.56 lbs 5696.0 g / 55.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.85 kg / 6.28 lbs 2848.0 g / 27.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	14.24 kg / 31.39 lbs 14240.0 g / 139.7 N

When placing a element on a vertical wall (e.g., a board), it will maintain barely about 20%-30% of its nominal power. Gravity as well as a low friction coefficient cause that products slip faster than they pull off. Planning a vertical fastening? Note that the shear force is significantly lower than the maximum static pull force. On a painted metal, the magnet will slip down under a noticeably lighter weight. Application of an anti-slip coating can effectively raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 45x25x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.42 kg / 3.14 lbs 1424.0 g / 14.0 N
1 mm	13%	3.56 kg / 7.85 lbs 3560.0 g / 34.9 N
2 mm	25%	7.12 kg / 15.70 lbs 7120.0 g / 69.8 N
3 mm	38%	10.68 kg / 23.55 lbs 10680.0 g / 104.8 N
5 mm	63%	17.80 kg / 39.24 lbs 17800.0 g / 174.6 N
10 mm	100%	28.48 kg / 62.79 lbs 28480.0 g / 279.4 N
11 mm	100%	28.48 kg / 62.79 lbs 28480.0 g / 279.4 N
12 mm	100%	28.48 kg / 62.79 lbs 28480.0 g / 279.4 N

A thin sheet is not enough to take in the full magnetic flux, which weakens actual performance of the magnet. 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 the maximum of this magnet's potential, you require a sufficiently solid piece of steel. The saturation effect means that on delicate walls (e.g., appliance housings), the holder works worse. We suggest choosing the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - power drop
MPL 45x25x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	28.48 kg / 62.79 lbs 28480.0 g / 279.4 N	OK
40 °C	-2.2%	27.85 kg / 61.41 lbs 27853.4 g / 273.2 N	OK
60 °C	-4.4%	27.23 kg / 60.02 lbs 27226.9 g / 267.1 N
80 °C	-6.6%	26.60 kg / 58.64 lbs 26600.3 g / 260.9 N
100 °C	-28.8%	20.28 kg / 44.70 lbs 20277.8 g / 198.9 N

Ordinary NdFeB products irreversibly lose strength after exceeding the maximum temperature. Watch out for overheating – high temperature can irreversibly destroy this product. With every degree above norm, the magnet's power briefly lowers. Avoid using this product close to heaters higher than its safe range. Too high temperature will result in irreversible degradation of magnetic properties.

*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low Pc) risk losing magnetic properties sooner than long magnets. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 45x25x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	65.04 kg / 143.40 lbs 4 590 Gs	9.76 kg / 21.51 lbs 9757 g / 95.7 N	N/A
1 mm	62.12 kg / 136.95 lbs 5 985 Gs	9.32 kg / 20.54 lbs 9318 g / 91.4 N	55.91 kg / 123.25 lbs ~0 Gs
2 mm	59.05 kg / 130.19 lbs 5 836 Gs	8.86 kg / 19.53 lbs 8858 g / 86.9 N	53.15 kg / 117.17 lbs ~0 Gs
3 mm	55.95 kg / 123.34 lbs 5 680 Gs	8.39 kg / 18.50 lbs 8392 g / 82.3 N	50.35 kg / 111.01 lbs ~0 Gs
5 mm	49.74 kg / 109.66 lbs 5 356 Gs	7.46 kg / 16.45 lbs 7461 g / 73.2 N	44.77 kg / 98.70 lbs ~0 Gs
10 mm	35.46 kg / 78.17 lbs 4 522 Gs	5.32 kg / 11.73 lbs 5319 g / 52.2 N	31.91 kg / 70.36 lbs ~0 Gs
20 mm	16.21 kg / 35.73 lbs 3 057 Gs	2.43 kg / 5.36 lbs 2431 g / 23.8 N	14.59 kg / 32.16 lbs ~0 Gs
50 mm	1.58 kg / 3.48 lbs 955 Gs	0.24 kg / 0.52 lbs 237 g / 2.3 N	1.42 kg / 3.14 lbs ~0 Gs
60 mm	0.80 kg / 1.77 lbs 680 Gs	0.12 kg / 0.26 lbs 120 g / 1.2 N	0.72 kg / 1.59 lbs ~0 Gs
70 mm	0.43 kg / 0.94 lbs 497 Gs	0.06 kg / 0.14 lbs 64 g / 0.6 N	0.38 kg / 0.85 lbs ~0 Gs
80 mm	0.24 kg / 0.53 lbs 372 Gs	0.04 kg / 0.08 lbs 36 g / 0.4 N	0.22 kg / 0.47 lbs ~0 Gs
90 mm	0.14 kg / 0.31 lbs 284 Gs	0.02 kg / 0.05 lbs 21 g / 0.2 N	0.13 kg / 0.28 lbs ~0 Gs
100 mm	0.08 kg / 0.19 lbs 221 Gs	0.01 kg / 0.03 lbs 13 g / 0.1 N	0.08 kg / 0.17 lbs ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a magnet and sheet combination. Such a system of magnet-to-magnet produces a massive flux and a further horizon of operation. Want to build a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still significant.
*Field value between like poles drops to ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Important: Results show shear force of a pair of identical neodymium magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - warnings
MPL 45x25x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	16.0 cm
Hearing aid	10 Gs (1.0 mT)	12.5 cm
Timepiece	20 Gs (2.0 mT)	10.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	7.5 cm
Remote	50 Gs (5.0 mT)	7.0 cm
Payment card	400 Gs (40.0 mT)	3.0 cm
HDD hard drive	600 Gs (60.0 mT)	2.5 cm

A strong magnetic field is a real danger to IT equipment as well as pacemakers. These neodymiums produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation acts through matter and plastic. Special caution must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, remotes, membranes, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MPL 45x25x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.22 km/h (5.89 m/s)	1.47 J
30 mm	32.34 km/h (8.98 m/s)	3.40 J
50 mm	41.46 km/h (11.52 m/s)	5.60 J
100 mm	58.59 km/h (16.28 m/s)	11.18 J

Neodymium magnets are very brittle – a strong collision with metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Striking energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear safety glasses when working with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 45x25x10 / 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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Flux)
MPL 45x25x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	35 829 Mx	358.3 µWb
P_c Coefficient	0.36	Low (Flat)

Flux value emitted by the magnet pole. Key data in coil applications as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 45x25x10 / N38

Environment	Effective steel pull	Effect
Air (land)	28.48 kg	Standard
Water (riverbed)	32.61 kg (+4.13 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Sliding resistance

*Note: On a vertical surface, the magnet holds just ~20% of its nominal pull.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) drastically reduces 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) = 0.36

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.

Engineering data and GPSR

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: 020164-2026

Magnet Unit Converter

Force (pull)

Kilograms (kg)

Force in lbs

Magnetic Field

Induction (Gs)

Induction (T)

Enter a number into any field, to see the rest convert instantly.

Other offers

Product available Ships tomorrow

UMT 12x20 red / N38 - board holder

1.894 ZŁ brutto / pcs

Product available Ships tomorrow

MW 15x4 / N38 - cylindrical magnet

1.968 ZŁ brutto / pcs

Product available Ships tomorrow

UI 17.5x5 [C310] / N38 - badge holder

1.316 ZŁ brutto / pcs

Product available Ships tomorrow

MW 3x6 / N38 - cylindrical magnet

0.295 ZŁ brutto / pcs

This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 45x25x10 mm and a weight of 84.38 g, guarantees the highest quality connection. As a magnetic bar with high power (approx. 28.48 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 28.48 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 45x25x10 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as invisible mounts under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

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

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 (45x25 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: 45 mm (length), 25 mm (width), and 10 mm (thickness). It is a magnetic block with dimensions 45x25x10 mm and a self-weight of 84.38 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.

Strengths

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

They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
They show high resistance to demagnetization induced by external magnetic fields,
The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the working part of the magnet remains exceptional,
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...
Thanks to freedom in constructing and the ability to adapt to specific needs,
Fundamental importance in modern industrial fields – they find application in HDD drives, brushless drives, advanced medical instruments, and industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in compact constructions

Disadvantages

Drawbacks and weaknesses of neodymium magnets and proposals for their use:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
We suggest casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complex shapes.
Health risk resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical when they are in the body.
Due to complex production process, their price exceeds standard values,

Holding force characteristics

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

Information about lifting capacity is the result of a measurement for optimal configuration, taking into account:

using a plate made of mild steel, functioning as a circuit closing element
whose transverse dimension reaches at least 10 mm
with an ground touching surface
without the slightest insulating layer between the magnet and steel
for force applied at a right angle (in the magnet axis)
in stable room temperature

What influences lifting capacity in practice

Bear in mind that the working load may be lower influenced by elements below, in order of importance:

Distance – existence of any layer (paint, dirt, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
Angle of force application – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material composition – different alloys attracts identically. High carbon content worsen the attraction effect.
Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets

Beware of splinters

NdFeB magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets will cause them breaking into small pieces.

Dust is flammable

Mechanical processing of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Medical interference

Individuals with a pacemaker should maintain an absolute distance from magnets. The magnetism can interfere with the functioning of the implant.

Precision electronics

A strong magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Finger safety

Large magnets can break fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Swallowing risk

Neodymium magnets are not toys. Swallowing several magnets can lead to them pinching intestinal walls, which constitutes a direct threat to life and requires urgent medical intervention.

Keep away from computers

Equipment safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).

Handling rules

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Maximum temperature

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.

Allergic reactions

A percentage of the population have a sensitization to Ni, which is the standard coating for neodymium magnets. Prolonged contact might lead to an allergic reaction. It is best to wear protective gloves.

Safety First! More info about risks in the article: Safety of working with magnets.

MPL 45x25x10 / N38 - lamellar magnet

Technical of the product - MPL 45x25x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - report

Table 1: Static force (force vs distance) - power drop MPL 45x25x10 / N38

Table 2: Slippage capacity (wall) MPL 45x25x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 45x25x10 / N38

Table 4: Steel thickness (saturation) - power losses MPL 45x25x10 / N38

Table 5: Thermal resistance (stability) - power drop MPL 45x25x10 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MPL 45x25x10 / N38

Table 7: Safety (HSE) (electronics) - warnings MPL 45x25x10 / N38

Table 8: Impact energy (kinetic energy) - collision effects MPL 45x25x10 / N38

Table 9: Anti-corrosion coating durability MPL 45x25x10 / N38

Table 10: Electrical data (Flux) MPL 45x25x10 / N38

Table 11: Physics of underwater searching MPL 45x25x10 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Temperature resistance

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Field

Other offers

UMT 12x20 red / N38 - board holder

MW 15x4 / N38 - cylindrical magnet

UI 17.5x5 [C310] / N38 - badge holder

MW 3x6 / N38 - cylindrical magnet

Strengths and weaknesses of neodymium magnets.

Strengths

Disadvantages

Holding force characteristics

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

What influences lifting capacity in practice

H&S for magnets

Beware of splinters

Dust is flammable

Medical interference

Precision electronics

Finger safety

Swallowing risk

Keep away from computers

Handling rules

Maximum temperature

Allergic reactions

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MPL 45x25x10 / N38

Table 2: Slippage capacity (wall)
MPL 45x25x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 45x25x10 / N38

Table 4: Steel thickness (saturation) - power losses
MPL 45x25x10 / N38

Table 5: Thermal resistance (stability) - power drop
MPL 45x25x10 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MPL 45x25x10 / N38

Table 7: Safety (HSE) (electronics) - warnings
MPL 45x25x10 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MPL 45x25x10 / N38

Table 9: Anti-corrosion coating durability
MPL 45x25x10 / N38

Table 10: Electrical data (Flux)
MPL 45x25x10 / N38

Table 11: Physics of underwater searching
MPL 45x25x10 / N38