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MPL 17x17x3 / 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

lamellar magnet

Catalog no 020124

GTIN/EAN: 5906301811305

5.00

Load capacity 3.22 kg / 31.54 N Magnetic Induction 187.48 mT / 1875 Gs

length: 17 mm [±0,1 mm]
Width: 17 mm [±0,1 mm]
Height: 3 mm [±0,1 mm]
Weight: 6.5 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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Frequently asked questions

How much will a block magnet really hold?

The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.

What is the maximum working temperature?

Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.

What safety factor should I allow?

At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical data of the product - MPL 17x17x3 / N38 - lamellar magnet

Specification / characteristics - MPL 17x17x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020124
GTIN/EAN	5906301811305
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	17 mm [±0,1 mm]
Width	17 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	6.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	3.22 kg / 31.54 N
Magnetic Induction ~ ?	187.48 mT / 1875 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 17x17x3 / N38 - lamellar magnet

properties	values	units
Remanence Br ?	12.2-12.6	kGs
Remanence Br ?	1220-1260	mT
Coercivity bHc ?	10.8-11.5	kOe
Coercivity bHc ?	860-915	kA/m
Intrinsic coercivity iHc	≥ 12	kOe
Intrinsic coercivity iHc	≥ 955	kA/m
Energy product BHmax ?	36-38	BH max MGOe
Energy product BHmax ?	287-303	BH max KJ/m
Maximum working 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	310	°C
Curie Temperature TF	590	°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 magnet - report

Presented values are the result of a mathematical simulation. Results were calculated on models for the material Nd₂Fe₁₄B. Actual conditions may differ. Treat these data as a reference point during assembly planning.

Table 1: Static pull force (pull vs gap) - power drop
MPL 17x17x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	1874 Gs 187.4 mT	3.22 kg / 7.10 pounds 3220.0 g / 31.6 N	warning
1 mm	1761 Gs 176.1 mT	2.84 kg / 6.27 pounds 2842.9 g / 27.9 N	warning
2 mm	1610 Gs 161.0 mT	2.38 kg / 5.24 pounds 2376.8 g / 23.3 N	warning
3 mm	1440 Gs 144.0 mT	1.90 kg / 4.19 pounds 1901.0 g / 18.6 N	weak grip
5 mm	1099 Gs 109.9 mT	1.11 kg / 2.44 pounds 1107.5 g / 10.9 N	weak grip
10 mm	508 Gs 50.8 mT	0.24 kg / 0.52 pounds 236.4 g / 2.3 N	weak grip
15 mm	245 Gs 24.5 mT	0.06 kg / 0.12 pounds 55.2 g / 0.5 N	weak grip
20 mm	131 Gs 13.1 mT	0.02 kg / 0.03 pounds 15.7 g / 0.2 N	weak grip
30 mm	48 Gs 4.8 mT	0.00 kg / 0.00 pounds 2.1 g / 0.0 N	weak grip
50 mm	12 Gs 1.2 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip

Magnetic force weakens significantly with every subsequent millimeter of distance. Note that even a microscopic distance (e.g., contamination, varnish, veneer) noticeably diminishes the holding power. Magnets hold optimally at the point of direct contact; air break kills the force. Analyze how quickly the pull force plummet, when the magnet does not adhere directly to the metal substrate. When planning the assembly, eliminate additional spacers.

Table 2: Shear load (wall)
MPL 17x17x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.64 kg / 1.42 pounds 644.0 g / 6.3 N
1 mm	Stal (~0.2)	0.57 kg / 1.25 pounds 568.0 g / 5.6 N
2 mm	Stal (~0.2)	0.48 kg / 1.05 pounds 476.0 g / 4.7 N
3 mm	Stal (~0.2)	0.38 kg / 0.84 pounds 380.0 g / 3.7 N
5 mm	Stal (~0.2)	0.22 kg / 0.49 pounds 222.0 g / 2.2 N
10 mm	Stal (~0.2)	0.05 kg / 0.11 pounds 48.0 g / 0.5 N
15 mm	Stal (~0.2)	0.01 kg / 0.03 pounds 12.0 g / 0.1 N
20 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data shows the theoretical holding capacity needed to initiate the downward movement of the magnet downwards along a upright metal surface (assuming standard friction). This parameter is relative to the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 17x17x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.97 kg / 2.13 pounds 966.0 g / 9.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.64 kg / 1.42 pounds 644.0 g / 6.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.32 kg / 0.71 pounds 322.0 g / 3.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.61 kg / 3.55 pounds 1610.0 g / 15.8 N

When mounting a magnet on a upright wall (e.g., a board), it you can count on just approx. 20%-30% of its maximum pull force. Gravity and a weak degree of grip mean that magnets slide down easier than they pull off. Planning a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the holder will slide down under a noticeably lighter load. Utilizing a rubberized layer can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MPL 17x17x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.32 kg / 0.71 pounds 322.0 g / 3.2 N
1 mm	25%	0.81 kg / 1.77 pounds 805.0 g / 7.9 N
2 mm	50%	1.61 kg / 3.55 pounds 1610.0 g / 15.8 N
3 mm	75%	2.42 kg / 5.32 pounds 2415.0 g / 23.7 N
5 mm	100%	3.22 kg / 7.10 pounds 3220.0 g / 31.6 N
10 mm	100%	3.22 kg / 7.10 pounds 3220.0 g / 31.6 N
11 mm	100%	3.22 kg / 7.10 pounds 3220.0 g / 31.6 N
12 mm	100%	3.22 kg / 7.10 pounds 3220.0 g / 31.6 N

A too thin steel is incapable of absorb the full magnetic flux, which weakens actual performance of the holder. Should you install a neodymium to a too thin substrate, the flux will pass right through and the holding will be smaller. To achieve 100% of this neodymium's potential, you require a sufficiently solid element of steel. The saturation effect means that on delicate walls (e.g., thin profiles), the product works worse. We suggest choosing the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MPL 17x17x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.22 kg / 7.10 pounds 3220.0 g / 31.6 N	OK
40 °C	-2.2%	3.15 kg / 6.94 pounds 3149.2 g / 30.9 N	OK
60 °C	-4.4%	3.08 kg / 6.79 pounds 3078.3 g / 30.2 N
80 °C	-6.6%	3.01 kg / 6.63 pounds 3007.5 g / 29.5 N
100 °C	-28.8%	2.29 kg / 5.05 pounds 2292.6 g / 22.5 N

Classic neodymiums lose parameters past the thermal threshold. Watch out for overheating – high temperature can irreversibly destroy this magnet. As the temperature rises, the magnet's power briefly lowers. Avoid using this magnet in hot environments higher than its operating temperature limit. Too high temperature will result in destruction of magnetic properties.

*Important note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently sooner than long magnets. The danger warning in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 17x17x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	6.26 kg / 13.80 pounds 3 313 Gs	0.94 kg / 2.07 pounds 939 g / 9.2 N	N/A
1 mm	5.93 kg / 13.07 pounds 3 648 Gs	0.89 kg / 1.96 pounds 889 g / 8.7 N	5.33 kg / 11.76 pounds ~0 Gs
2 mm	5.53 kg / 12.19 pounds 3 523 Gs	0.83 kg / 1.83 pounds 829 g / 8.1 N	4.97 kg / 10.97 pounds ~0 Gs
3 mm	5.08 kg / 11.21 pounds 3 379 Gs	0.76 kg / 1.68 pounds 763 g / 7.5 N	4.58 kg / 10.09 pounds ~0 Gs
5 mm	4.15 kg / 9.16 pounds 3 053 Gs	0.62 kg / 1.37 pounds 623 g / 6.1 N	3.74 kg / 8.24 pounds ~0 Gs
10 mm	2.15 kg / 4.75 pounds 2 199 Gs	0.32 kg / 0.71 pounds 323 g / 3.2 N	1.94 kg / 4.27 pounds ~0 Gs
20 mm	0.46 kg / 1.01 pounds 1 016 Gs	0.07 kg / 0.15 pounds 69 g / 0.7 N	0.41 kg / 0.91 pounds ~0 Gs
50 mm	0.01 kg / 0.02 pounds 153 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
60 mm	0.00 kg / 0.01 pounds 96 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 64 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 44 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 32 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 24 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a significantly greater distance than a magnet and sheet combination. The connection of magnet-to-magnet produces a massive flux and a wider radius of performance. Designing a strong closure? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when attracting two neodymiums, the impact force is extreme. The levitation is marginally weaker than the attraction, but still impressive.
*Field value in repulsion mode reaches ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
* Estimates show sliding force of a pair of matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MPL 17x17x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.0 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Timepiece	20 Gs (2.0 mT)	4.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.5 cm
Car key	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field is a serious hazard to IT equipment and pacemakers. These NdFeB products generate a flux that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and housings. Exceptional care must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - warning
MPL 17x17x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	23.10 km/h (6.42 m/s)	0.13 J
30 mm	23.79 km/h (6.61 m/s)	0.14 J
50 mm	23.78 km/h (6.61 m/s)	0.14 J
100 mm	23.80 km/h (6.61 m/s)	0.14 J

NdFeB products are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during mounting so it doesn't slam with momentum against the metal. A collision at high speed means shattering of the magnet. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MPL 17x17x3 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MPL 17x17x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	6 509 Mx	65.1 µWb
P_c Coefficient	0.23	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 17x17x3 / N38

Environment	Effective steel pull	Effect
Air (land)	3.22 kg	Standard
Water (riverbed)	3.69 kg (+0.47 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Caution: On a vertical surface, the magnet holds just approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) significantly weakens the holding force.

3. Temperature resistance

*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) = 0.23

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 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: 020124-2026

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Component MPL 17x17x3 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 31.54 N is ready for shipment in 24h, allowing for rapid realization of your project. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

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 3.22 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 17x17x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 3.22 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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

Standardly, the MPL 17x17x3 / N38 model is magnetized axially (dimension 3 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (17x17 mm), which is ideal for flat mounting. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 17x17x3 mm, which, at a weight of 6.5 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 3.22 kg (force ~31.54 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 neodymium magnets.

Benefits

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

Their magnetic field is maintained, and after around 10 years it drops only by ~1% (theoretically),
They are resistant to demagnetization induced by external magnetic fields,
A magnet with a metallic gold surface has better aesthetics,
Neodymium magnets deliver maximum magnetic induction on a small surface, which increases force concentration,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to modularity in forming and the ability to modify to specific needs,
Key role in future technologies – they are commonly used in mass storage devices, electromotive mechanisms, medical equipment, and complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
Limited possibility of creating nuts in the magnet and complex forms - recommended is cover - mounting mechanism.
Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these products can disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum holding power of the magnet – what it depends on?

The load parameter shown refers to the limit force, measured under optimal environment, namely:

with the contact of a yoke made of low-carbon steel, ensuring maximum field concentration
possessing a thickness of minimum 10 mm to ensure full flux closure
with a plane free of scratches
without any air gap between the magnet and steel
for force applied at a right angle (pull-off, not shear)
at temperature approx. 20 degrees Celsius

Practical lifting capacity: influencing factors

In practice, the actual holding force depends on a number of factors, listed from the most important:

Air gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
Direction of force – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
Surface structure – the more even the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Safety rules for work with NdFeB magnets

Do not drill into magnets

Powder produced during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Crushing force

Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, destroying everything in their path. Be careful!

Health Danger

Patients with a pacemaker have to maintain an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.

GPS and phone interference

A strong magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Maintain magnets near a device to prevent breaking the sensors.

Safe distance

Data protection: Strong magnets can ruin payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).

Metal Allergy

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

Magnet fragility

Neodymium magnets are sintered ceramics, which means they are very brittle. Impact of two magnets will cause them cracking into shards.

This is not a toy

Only for adults. Small elements pose a choking risk, causing severe trauma. Keep out of reach of kids and pets.

Maximum temperature

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Conscious usage

Handle magnets consciously. Their immense force can shock even professionals. Stay alert and respect their power.

Warning! Want to know more? Check our post: Why are neodymium magnets dangerous?

MPL 17x17x3 / N38 - lamellar magnet

Technical data of the product - MPL 17x17x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - report

Table 1: Static pull force (pull vs gap) - power drop MPL 17x17x3 / N38

Table 2: Shear load (wall) MPL 17x17x3 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MPL 17x17x3 / N38

Table 4: Steel thickness (substrate influence) - power losses MPL 17x17x3 / N38

Table 5: Thermal resistance (stability) - resistance threshold MPL 17x17x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MPL 17x17x3 / N38

Table 7: Safety (HSE) (electronics) - warnings MPL 17x17x3 / N38

Table 8: Dynamics (cracking risk) - warning MPL 17x17x3 / N38

Table 9: Coating parameters (durability) MPL 17x17x3 / N38

Table 10: Electrical data (Pc) MPL 17x17x3 / N38

Table 11: Underwater work (magnet fishing) MPL 17x17x3 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Environmental data

Magnet pull force

Magnetic Induction

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Strengths as well as weaknesses of neodymium magnets.

Benefits

Cons

Pull force analysis

Maximum holding power of the magnet – what it depends on?

Practical lifting capacity: influencing factors

Safety rules for work with NdFeB magnets

Do not drill into magnets

Crushing force

Health Danger

GPS and phone interference

Safe distance

Metal Allergy

Magnet fragility

This is not a toy

Maximum temperature

Conscious usage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MPL 17x17x3 / N38

Table 2: Shear load (wall)
MPL 17x17x3 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MPL 17x17x3 / N38

Table 4: Steel thickness (substrate influence) - power losses
MPL 17x17x3 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MPL 17x17x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 17x17x3 / N38

Table 7: Safety (HSE) (electronics) - warnings
MPL 17x17x3 / N38

Table 8: Dynamics (cracking risk) - warning
MPL 17x17x3 / N38

Table 9: Coating parameters (durability)
MPL 17x17x3 / N38

Table 10: Electrical data (P_c)
MPL 17x17x3 / N38

Table 11: Underwater work (magnet fishing)
MPL 17x17x3 / N38