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MPL 35x35x10 / 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 020144

GTIN/EAN: 5906301811503

length

35 mm [±0,1 mm]

Width

35 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

91.88 g

Magnetization Direction

↑ axial

Load capacity

26.88 kg / 263.71 N

Magnetic Induction

282.90 mT / 2829 Gs

Coating

[NiCuNi] Nickel

35.10 ZŁ with VAT / pcs + price for transport

28.54 ZŁ net + 23% VAT / pcs

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MPL 35x35x10 / N38 - lamellar magnet

Specification / characteristics MPL 35x35x10 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020144
GTIN/EAN	5906301811503
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	35 mm [±0,1 mm]
Width	35 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	91.88 g
Magnetization Direction	↑ axial
Load capacity ~ ?	26.88 kg / 263.71 N
Magnetic Induction ~ ?	282.90 mT / 2829 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 35x35x10 / 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

Technical analysis of the product - data

These data are the result of a physical analysis. Results are based on models for the class Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static force (force vs distance) - characteristics
MPL 35x35x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	2829 Gs 282.9 mT	26.88 kg / 26880.0 g 263.7 N	critical level
1 mm	2727 Gs 272.7 mT	24.98 kg / 24982.7 g 245.1 N	critical level
2 mm	2613 Gs 261.3 mT	22.94 kg / 22939.0 g 225.0 N	critical level
3 mm	2491 Gs 249.1 mT	20.84 kg / 20841.0 g 204.4 N	critical level
5 mm	2232 Gs 223.2 mT	16.73 kg / 16730.5 g 164.1 N	critical level
10 mm	1600 Gs 160.0 mT	8.60 kg / 8600.7 g 84.4 N	warning
15 mm	1102 Gs 110.2 mT	4.08 kg / 4082.9 g 40.1 N	warning
20 mm	757 Gs 75.7 mT	1.93 kg / 1925.7 g 18.9 N	weak grip
30 mm	376 Gs 37.6 mT	0.48 kg / 475.7 g 4.7 N	weak grip
50 mm	122 Gs 12.2 mT	0.05 kg / 49.9 g 0.5 N	weak grip

Magnetic force weakens drastically with every mm of gap. Keep in mind that even a very thin break (e.g., dirt, paint, veneer) noticeably weakens the grip. Neodymiums operate optimally in perfect adhesion; distance drastically cuts the power. Analyze how rapidly the load capacity drop, when the product does not adhere tightly to the metal substrate. When designing the arrangement, eliminate redundant distances.

Table 2: Slippage Force (Wall)
MPL 35x35x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	5.38 kg / 5376.0 g 52.7 N
1 mm	Stal (~0.2)	5.00 kg / 4996.0 g 49.0 N
2 mm	Stal (~0.2)	4.59 kg / 4588.0 g 45.0 N
3 mm	Stal (~0.2)	4.17 kg / 4168.0 g 40.9 N
5 mm	Stal (~0.2)	3.35 kg / 3346.0 g 32.8 N
10 mm	Stal (~0.2)	1.72 kg / 1720.0 g 16.9 N
15 mm	Stal (~0.2)	0.82 kg / 816.0 g 8.0 N
20 mm	Stal (~0.2)	0.39 kg / 386.0 g 3.8 N
30 mm	Stal (~0.2)	0.10 kg / 96.0 g 0.9 N
50 mm	Stal (~0.2)	0.01 kg / 10.0 g 0.1 N

The following data shows the estimated force sufficient to initiate the slippage of the magnet down against a upright steel plate (assuming standard friction). This parameter depends on the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MPL 35x35x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	8.06 kg / 8064.0 g 79.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	5.38 kg / 5376.0 g 52.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.69 kg / 2688.0 g 26.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	13.44 kg / 13440.0 g 131.8 N

When hanging a element on a vertical wall (e.g., a board), it will only hold just approx. 1/5 of its maximum pull force. Gravity as well as a weak degree of grip influence the fact that products slip faster than they detach. Want to create a vertical fastening? Remember that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slip down under a much lighter weight. Using a rubber coating can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MPL 35x35x10 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	5%	1.34 kg / 1344.0 g 13.2 N
1 mm	13%	3.36 kg / 3360.0 g 33.0 N
2 mm	25%	6.72 kg / 6720.0 g 65.9 N
5 mm	63%	16.80 kg / 16800.0 g 164.8 N
10 mm	100%	26.88 kg / 26880.0 g 263.7 N

A thin metal plate cannot absorb the entire magnetic field, which weakens actual performance of the magnet. If you mount a strong magnet to a weak sheet, the field will penetrate right through and the attraction force will be weaker. To squeeze 100% of this neodymium's power, you need a suitably thick piece of metal. The material oversaturation means that on thin elements (e.g., car bodies), the holder shows lower pull force. We suggest choosing the steel cross-section based on the following data.

Table 5: Working in heat (stability) - thermal limit
MPL 35x35x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	26.88 kg / 26880.0 g 263.7 N	OK
40 °C	-2.2%	26.29 kg / 26288.6 g 257.9 N	OK
60 °C	-4.4%	25.70 kg / 25697.3 g 252.1 N
80 °C	-6.6%	25.11 kg / 25105.9 g 246.3 N
100 °C	-28.8%	19.14 kg / 19138.6 g 187.7 N

Standard neodymium magnets lose power above the temperature limit. Watch out for overheating – heat can irreversibly demagnetize this magnet. With every degree above norm, the neodymium's power briefly lowers. Do not use this magnet close to heaters higher than its working range. Too high temperature will result in irreversible degradation of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently sooner than taller cylinders. Warning indicator in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MPL 35x35x10 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	60.43 kg / 60428 g 592.8 N 4 428 Gs	N/A
1 mm	58.36 kg / 58363 g 572.5 N 5 560 Gs	52.53 kg / 52526 g 515.3 N ~0 Gs
2 mm	56.16 kg / 56162 g 551.0 N 5 454 Gs	50.55 kg / 50546 g 495.9 N ~0 Gs
3 mm	53.89 kg / 53891 g 528.7 N 5 343 Gs	48.50 kg / 48502 g 475.8 N ~0 Gs
5 mm	49.22 kg / 49216 g 482.8 N 5 106 Gs	44.29 kg / 44294 g 434.5 N ~0 Gs
10 mm	37.61 kg / 37611 g 369.0 N 4 463 Gs	33.85 kg / 33850 g 332.1 N ~0 Gs
20 mm	19.33 kg / 19335 g 189.7 N 3 200 Gs	17.40 kg / 17401 g 170.7 N ~0 Gs
50 mm	2.10 kg / 2104 g 20.6 N 1 056 Gs	1.89 kg / 1894 g 18.6 N ~0 Gs

Two magnetic products interact from a much further distance than a magnet and sheet setup. The setup of magnet-to-magnet generates a stronger field and a larger range of performance. Want to build a strong closure? Apply two magnets instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the impact force is massive. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (resulting from vector opposition).

Table 7: Protective zones (electronics) - precautionary measures
MPL 35x35x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	16.5 cm
Hearing aid	10 Gs (1.0 mT)	13.0 cm
Timepiece	20 Gs (2.0 mT)	10.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	8.0 cm
Remote	50 Gs (5.0 mT)	7.5 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 electronic devices and pacemakers. These magnets produce a field that prevents correct functioning of digital equipment. Remember: the unseen radiation penetrates the body and housings. Special caution must be taken by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MPL 35x35x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.41 km/h (5.67 m/s)	1.48 J
30 mm	30.21 km/h (8.39 m/s)	3.23 J
50 mm	38.62 km/h (10.73 m/s)	5.29 J
100 mm	54.55 km/h (15.15 m/s)	10.55 J

Neodymium magnets are very brittle – a strong collision with metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or dangerous crushing to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses when handling with powerful specimens.

Table 9: Corrosion resistance
MPL 35x35x10 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical Data (P_c)
MPL 35x35x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	38 021 Mx	380.2 µWb
P_c Coefficient	0.35	Low (Flat)

Flux value passing through the pole surface. Key data when building generators and motors. P_c value determines the working geometry.

Table 11: Submerged application
MPL 35x35x10 / N38

Environment	Effective steel pull	Effect
Air (land)	26.88 kg	Standard
Water (riverbed)	30.78 kg (+3.90 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.

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

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

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) drastically weakens the holding force.

3. Thermal stability

*For N38 grade, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.35

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

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%

Sustainability

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: 020144-2025

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Force (N)

lbs

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This product is a very powerful magnet in the shape of a plate made of NdFeB material, which, with dimensions of 35x35x10 mm and a weight of 91.88 g, guarantees premium class connection. This rectangular block with a force of 263.71 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.

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. To separate the MPL 35x35x10 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 26.88 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 35x35x10 / N38, it is best to use strong epoxy glues (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. 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. 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: 35 mm (length), 35 mm (width), and 10 mm (thickness). It is a magnetic block with dimensions 35x35x10 mm and a self-weight of 91.88 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros and cons of rare earth magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They do not lose magnetism, even during approximately ten years – the reduction in strength is only ~1% (theoretically),
Neodymium magnets are characterized by remarkably resistant to magnetic field loss caused by magnetic disturbances,
Thanks to the shimmering finish, the coating of nickel, gold-plated, or silver gives an professional appearance,
Neodymium magnets generate maximum magnetic induction on a small area, which allows for strong attraction,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to versatility in designing and the capacity to customize to unusual requirements,
Fundamental importance in modern technologies – they find application in mass storage devices, electric motors, medical equipment, and complex engineering applications.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Weaknesses

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

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in producing threads and complex forms in magnets, we recommend using a housing - magnetic mechanism.
Potential hazard related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child safety. Furthermore, small components of these devices are able to be problematic in diagnostics medical when they are in the body.
With mass production the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum holding power of the magnet – what affects it?

The declared magnet strength represents the limit force, obtained under ideal test conditions, namely:

with the use of a yoke made of low-carbon steel, ensuring full magnetic saturation
whose thickness reaches at least 10 mm
with an ideally smooth touching surface
with total lack of distance (no paint)
during pulling in a direction perpendicular to the mounting surface
at room temperature

Practical aspects of lifting capacity – factors

In real-world applications, the actual lifting capacity depends on a number of factors, listed from crucial:

Gap (between the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, rust or debris).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Material composition – different alloys attracts identically. Alloy additives worsen the interaction with the magnet.
Surface finish – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
Temperature influence – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Precautions when working with NdFeB magnets

Health Danger

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Data carriers

Device Safety: Strong magnets can damage payment cards and delicate electronics (heart implants, hearing aids, mechanical watches).

Dust explosion hazard

Drilling and cutting of neodymium magnets poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Sensitization to coating

Some people experience a hypersensitivity to Ni, which is the common plating for neodymium magnets. Frequent touching can result in a rash. We suggest use safety gloves.

Operating temperature

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

Material brittleness

Protect your eyes. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Danger to the youngest

Absolutely keep magnets away from children. Ingestion danger is high, and the consequences of magnets clamping inside the body are very dangerous.

Phone sensors

Note: rare earth magnets generate a field that confuses sensitive sensors. Keep a separation from your mobile, device, and navigation systems.

Immense force

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

Pinching danger

Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!

Security! Learn more about risks in the article: Safety of working with magnets.

MPL 35x35x10 / N38 - lamellar magnet

Not sure what to buy?

MPL 35x35x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - data

1. Sliding resistance

2. Plate thickness effect

3. Thermal stability

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

Chemical composition

Sustainability

Force (Pull)

Magnetic Induction

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Pros and cons of rare earth magnets.

Pros

Weaknesses

Holding force characteristics

Maximum holding power of the magnet – what affects it?

Practical aspects of lifting capacity – factors

Health Danger

Data carriers

Dust explosion hazard

Sensitization to coating

Operating temperature

Material brittleness

Danger to the youngest

Phone sensors

Immense force

Pinching danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C