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MPL 5x5x1.5 / 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: 1-6500
Rating: 5

lamellar magnet

Catalog no 020172

GTIN: 5906301811787

5.00

length

5 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

1.5 mm [±0,1 mm]

Weight

0.28 g

Magnetization Direction

↑ axial

Load capacity

0.58 kg / 5.68 N

Magnetic Induction

293.49 mT / 2935 Gs

Coating

[NiCuNi] Nickel

0.1845 ZŁ with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

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MPL 5x5x1.5 / N38 - lamellar magnet

Specification / characteristics MPL 5x5x1.5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020172
GTIN	5906301811787
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	5 mm [±0,1 mm]
Width	5 mm [±0,1 mm]
Height	1.5 mm [±0,1 mm]
Weight	0.28 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.58 kg / 5.68 N
Magnetic Induction ~ ?	293.49 mT / 2935 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 5x5x1.5 / N38 - lamellar magnet

properties	values	units
remenance Br [Min. - Max.] ?	12.2-12.6	kGs
remenance Br [Min. - Max.] ?	1220-1260	T
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 106	°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 are the direct effect of a mathematical calculation. Values were calculated on models for the class NdFeB. Actual parameters may differ from theoretical values. Please consider these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MPL 5x5x1.5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	2932 Gs 293.2 mT	0.58 kg / 580.0 g 5.7 N	weak grip
1 mm	2036 Gs 203.6 mT	0.28 kg / 279.6 g 2.7 N	weak grip
2 mm	1228 Gs 122.8 mT	0.10 kg / 101.7 g 1.0 N	weak grip
3 mm	727 Gs 72.7 mT	0.04 kg / 35.7 g 0.3 N	weak grip
5 mm	285 Gs 28.5 mT	0.01 kg / 5.5 g 0.1 N	weak grip
10 mm	54 Gs 5.4 mT	0.00 kg / 0.2 g 0.0 N	weak grip
15 mm	18 Gs 1.8 mT	0.00 kg / 0.0 g 0.0 N	weak grip
20 mm	8 Gs 0.8 mT	0.00 kg / 0.0 g 0.0 N	weak grip
30 mm	3 Gs 0.3 mT	0.00 kg / 0.0 g 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.0 g 0.0 N	weak grip

Grip strength weakens sharply with every mm of spacing. Remember that even a very thin break (e.g., contamination, paint, veneer) significantly diminishes the holding power. Neodymiums hold most effectively at the point of direct contact; distance nullifies the force. Notice how quickly the load capacity drop, when the magnet does not touch flatly to the steel surface. When calculating the mounting, discard unnecessary gaps.

Table 2: Vertical Force (Wall)
MPL 5x5x1.5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.12 kg / 116.0 g 1.1 N
1 mm	Stal (~0.2)	0.06 kg / 56.0 g 0.5 N
2 mm	Stal (~0.2)	0.02 kg / 20.0 g 0.2 N
3 mm	Stal (~0.2)	0.01 kg / 8.0 g 0.1 N
5 mm	Stal (~0.2)	0.00 kg / 2.0 g 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N

The table below calculates the approximate weight limit necessary to start the slippage of the magnet downwards against a vertical steel plate (assuming typical friction). This parameter is relative to the gap size between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MPL 5x5x1.5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.17 kg / 174.0 g 1.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.12 kg / 116.0 g 1.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.06 kg / 58.0 g 0.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.29 kg / 290.0 g 2.8 N

When mounting a magnet on a upright wall (e.g., a board), it you can count on just approx. 1/5 of its maximum pull force. Gravity and a weak degree of grip cause that products slide down faster than they detach. Designing a vertical fastening? Remember that the shear force is much weaker than the maximum static pull force. On a slippery surface, the holder will slip down under a much lighter load. Using a rubber coating can effectively increase the grip.

Table 4: Material efficiency (saturation) - power losses
MPL 5x5x1.5 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.06 kg / 58.0 g 0.6 N
1 mm	25%	0.15 kg / 145.0 g 1.4 N
2 mm	50%	0.29 kg / 290.0 g 2.8 N
5 mm	100%	0.58 kg / 580.0 g 5.7 N
10 mm	100%	0.58 kg / 580.0 g 5.7 N

A too thin steel is not enough to focus the full magnetic flux, which squanders power of the holder. If you mount a strong magnet to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's power, you need a suitably thick backing of metal. The material oversaturation means that on thin elements (e.g., car bodies), the magnet shows lower pull force. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MPL 5x5x1.5 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	0.58 kg / 580.0 g 5.7 N	OK
40 °C	-2.2%	0.57 kg / 567.2 g 5.6 N	OK
60 °C	-4.4%	0.55 kg / 554.5 g 5.4 N
80 °C	-6.6%	0.54 kg / 541.7 g 5.3 N
100 °C	-28.8%	0.41 kg / 413.0 g 4.1 N

Ordinary NdFeB products lose parameters past the thermal threshold. Protect against heat – high temperature can permanently destroy this magnet. With every degree above norm, the magnet's force temporarily drops. Avoid using this magnet close to heaters higher than its working range. Exceeding the critical threshold will lead to destruction of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Flat magnets (low Pc) are more susceptible to demagnetization at lower temperatures than taller cylinders. Red status in the table points to permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 5x5x1.5 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	2.58 kg / 2584 g 25.3 N 12 378 Gs	N/A
1 mm	0.28 kg / 280 g 2.7 N 5 027 Gs	0.25 kg / 252 g 2.5 N ~0 Gs
2 mm	0.10 kg / 102 g 1.0 N 4 071 Gs	0.09 kg / 92 g 0.9 N ~0 Gs
3 mm	0.04 kg / 36 g 0.3 N 3 188 Gs	0.03 kg / 32 g 0.3 N ~0 Gs
5 mm	0.01 kg / 5 g 0.1 N 1 886 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
10 mm	0.00 kg / 0 g 0.0 N 569 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
20 mm	0.00 kg / 0 g 0.0 N 108 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 9 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two magnets attract each other from a wider radius than a magnet and steel combination. The connection of magnet-to-magnet produces a massive flux and a further horizon of performance. Planning to create a strong closure? Use a pair of magnets instead of a neodymium and a steel. Remember that when attracting two neodymiums, the pinch force is extreme. The repulsion force is slightly lower than the attraction, but still significant.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).

Table 7: Protective zones (electronics) - warnings
MPL 5x5x1.5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	2.5 cm
Hearing aid	10 Gs (1.0 mT)	2.0 cm
Mechanical watch	20 Gs (2.0 mT)	1.5 cm
Mobile device	40 Gs (4.0 mT)	1.5 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Extremely neodym field poses a real danger to electronic devices and medical implants. These NdFeB products produce a flux that disrupts operation of digital equipment. Be aware: the invisible magnetic field passes through tissues and plastic. Special caution must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MPL 5x5x1.5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	45.91 km/h (12.75 m/s)	0.02 J
30 mm	79.50 km/h (22.08 m/s)	0.07 J
50 mm	102.64 km/h (28.51 m/s)	0.11 J
100 mm	145.15 km/h (40.32 m/s)	0.23 J

Neodymium magnets are prone to chipping – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Impact energy can destroy the magnet or painful pinches to skin. Always hold the magnet during mounting 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 playing with large magnets.

Table 9: Corrosion resistance
MPL 5x5x1.5 / 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: Generator data (Flux)
MPL 5x5x1.5 / N38

Parameter	Value	Jedn. SI / Opis
Strumień (Flux)	799 Mx	8.0 µWb
Współczynnik Pc	0.36	Niski (Płaski)

Flux value flowing through the pole face. Essential parameter for motor design and sensors. Permeance Coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 5x5x1.5 / N38

Environment	Effective steel pull	Effect
Air (land)	0.58 kg	Standard
Water (riverbed)	0.66 kg (+0.08 kg Buoyancy gain)	+14.5%

Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

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Component MPL 5x5x1.5 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 0.58 kg), this product is available immediately from our warehouse in Poland. 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 0.58 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 5x5x1.5 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 0.58 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for workshop organization on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 5x5x1.5 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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 clean and degrease 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 (5x5 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

The presented product is a neodymium magnet with precisely defined parameters: 5 mm (length), 5 mm (width), and 1.5 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 0.58 kg (force ~5.68 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of NdFeB magnets.

Besides their tremendous pulling force, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
They feature excellent resistance to magnetism drop as a result of external magnetic sources,
The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
They show high magnetic induction at the operating surface, making them more effective,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Due to the ability of free molding and adaptation to specialized needs, magnetic components can be produced in a variety of shapes and sizes, which amplifies use scope,
Fundamental importance in modern technologies – they are utilized in data components, electric drive systems, precision medical tools, also industrial machines.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

What to avoid - cons of neodymium magnets and ways of using them

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and 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
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
We recommend a housing - magnetic mount, due to difficulties in creating nuts inside the magnet and complex shapes.
Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these magnets can disrupt the diagnostic process medical after entering the body.
Due to expensive raw materials, their price is relatively high,

Maximum holding power of the magnet – what affects it?

The declared magnet strength refers to the peak performance, recorded under optimal environment, specifically:

using a plate made of mild steel, functioning as a circuit closing element
possessing a massiveness of at least 10 mm to avoid saturation
characterized by even structure
under conditions of gap-free contact (metal-to-metal)
under vertical application of breakaway force (90-degree angle)
in stable room temperature

What influences lifting capacity in practice

In practice, the actual lifting capacity is determined by several key aspects, ranked from most significant:

Clearance – existence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds much less (often approx. 20-30% of nominal force).
Plate thickness – too thin plate does not accept the full field, causing part of the flux to be lost into the air.
Material type – the best choice is pure iron steel. Hardened steels may attract less.
Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

* Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the lifting capacity is smaller. In addition, even a slight gap {between} the magnet and the plate decreases the holding force.

H&S for magnets

Pinching danger

Large magnets can smash fingers instantly. Never place your hand betwixt two strong magnets.

Immense force

Use magnets consciously. Their powerful strength can shock even experienced users. Stay alert and respect their power.

Data carriers

Do not bring magnets near a wallet, laptop, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

Dust explosion hazard

Drilling and cutting of neodymium magnets carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Magnets are brittle

Despite metallic appearance, the material is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Allergy Warning

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness occurs, cease working with magnets and use protective gear.

Magnetic interference

Be aware: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.

Operating temperature

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

Do not give to children

Neodymium magnets are not intended for children. Accidental ingestion of multiple magnets may result in them attracting across intestines, which constitutes a critical condition and necessitates urgent medical intervention.

Medical interference

For implant holders: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Security!

Need more info? Read our article: Why are neodymium magnets dangerous?

MPL 5x5x1.5 / N38 - lamellar magnet

MPL 5x5x1.5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - report

Pulling Force

Magnetic Induction

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Strengths and weaknesses of NdFeB magnets.

Maximum holding power of the magnet – what affects it?

What influences lifting capacity in practice

H&S for magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C