Product available Ships in 2 days

MPL 40x20x5 / 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 020160

GTIN/EAN: 5906301811664

5.00

length

40 mm [±0,1 mm]

Width

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

30 g

Magnetization Direction

↑ axial

Load capacity

10.67 kg / 104.63 N

Magnetic Induction

205.27 mT / 2053 Gs

Coating

[NiCuNi] Nickel

check specifications »

12.24 ZŁ with VAT / pcs + price for transport

9.95 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

9.95 ZŁ

12.24 ZŁ

price from 100 pcs

9.35 ZŁ

11.50 ZŁ

price from 300 pcs

8.76 ZŁ

10.77 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Pick up the phone and ask +48 888 99 98 98 if you prefer let us know through contact form through our site.
Strength and structure of neodymium magnets can be calculated on our magnetic mass calculator.

Order by 14:00 and we’ll ship today!

Technical - MPL 40x20x5 / N38 - lamellar magnet

Specification / characteristics - MPL 40x20x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020160
GTIN/EAN	5906301811664
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	40 mm [±0,1 mm]
Width	20 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	30 g
Magnetization Direction	↑ axial
Load capacity ~ ?	10.67 kg / 104.63 N
Magnetic Induction ~ ?	205.27 mT / 2053 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x20x5 / N38 - lamellar magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Physical analysis of the product - data

Presented information are the result of a physical analysis. Results are based on algorithms for the material Nd₂Fe₁₄B. Operational conditions might slightly differ. Treat these data as a supplementary guide when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MPL 40x20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2052 Gs 205.2 mT	10.67 kg / 23.52 LBS 10670.0 g / 104.7 N	dangerous!
1 mm	1956 Gs 195.6 mT	9.69 kg / 21.37 LBS 9693.2 g / 95.1 N	medium risk
2 mm	1839 Gs 183.9 mT	8.57 kg / 18.89 LBS 8570.5 g / 84.1 N	medium risk
3 mm	1711 Gs 171.1 mT	7.41 kg / 16.34 LBS 7413.1 g / 72.7 N	medium risk
5 mm	1444 Gs 144.4 mT	5.28 kg / 11.65 LBS 5282.9 g / 51.8 N	medium risk
10 mm	888 Gs 88.8 mT	2.00 kg / 4.40 LBS 1996.5 g / 19.6 N	low risk
15 mm	545 Gs 54.5 mT	0.75 kg / 1.66 LBS 752.0 g / 7.4 N	low risk
20 mm	346 Gs 34.6 mT	0.30 kg / 0.67 LBS 302.9 g / 3.0 N	low risk
30 mm	156 Gs 15.6 mT	0.06 kg / 0.14 LBS 61.9 g / 0.6 N	low risk
50 mm	46 Gs 4.6 mT	0.01 kg / 0.01 LBS 5.4 g / 0.1 N	low risk

Pulling power weakens sharply per each millimeter of spacing. Remember that every additional insulation layer (e.g., contamination, paint, dust) noticeably diminishes the holding power. Neodymiums hold optimally at the point of direct contact; gap kills the power. See how quickly the load capacity fall, when the product does not touch directly to the steel surface. When designing the assembly, discard unnecessary gaps.

Table 2: Shear hold (wall)
MPL 40x20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.13 kg / 4.70 LBS 2134.0 g / 20.9 N
1 mm	Stal (~0.2)	1.94 kg / 4.27 LBS 1938.0 g / 19.0 N
2 mm	Stal (~0.2)	1.71 kg / 3.78 LBS 1714.0 g / 16.8 N
3 mm	Stal (~0.2)	1.48 kg / 3.27 LBS 1482.0 g / 14.5 N
5 mm	Stal (~0.2)	1.06 kg / 2.33 LBS 1056.0 g / 10.4 N
10 mm	Stal (~0.2)	0.40 kg / 0.88 LBS 400.0 g / 3.9 N
15 mm	Stal (~0.2)	0.15 kg / 0.33 LBS 150.0 g / 1.5 N
20 mm	Stal (~0.2)	0.06 kg / 0.13 LBS 60.0 g / 0.6 N
30 mm	Stal (~0.2)	0.01 kg / 0.03 LBS 12.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

This section indicates the approximate weight limit sufficient to start the shifting of the magnet down against a vertical metal surface (assuming standard friction). This parameter is a function of the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.20 kg / 7.06 LBS 3201.0 g / 31.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.13 kg / 4.70 LBS 2134.0 g / 20.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.07 kg / 2.35 LBS 1067.0 g / 10.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.34 kg / 11.76 LBS 5335.0 g / 52.3 N

When placing a element on a upright surface (e.g., a board), it you can count on just about 20%-30% of nominal attraction strength. Gravitational force as well as a weak degree of grip influence the fact that holders move down easier than they detach. Designing a wall mount? Note that the sliding force is significantly lower than the maximum static pull force. On a smooth steel, the magnet will slide down under a significantly smaller load. Utilizing a rubberized coating can significantly increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 40x20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.53 kg / 1.18 LBS 533.5 g / 5.2 N
1 mm	13%	1.33 kg / 2.94 LBS 1333.8 g / 13.1 N
2 mm	25%	2.67 kg / 5.88 LBS 2667.5 g / 26.2 N
3 mm	38%	4.00 kg / 8.82 LBS 4001.2 g / 39.3 N
5 mm	63%	6.67 kg / 14.70 LBS 6668.8 g / 65.4 N
10 mm	100%	10.67 kg / 23.52 LBS 10670.0 g / 104.7 N
11 mm	100%	10.67 kg / 23.52 LBS 10670.0 g / 104.7 N
12 mm	100%	10.67 kg / 23.52 LBS 10670.0 g / 104.7 N

A thin sheet is not enough to take in the full magnetic flux, which squanders power of the magnet. Should you mount a strong magnet to a weak sheet, the flux will penetrate right through and the attraction force will be weaker. To utilize the maximum of this magnet's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on thin elements (e.g., car bodies), the magnet holds weaker. We advise picking the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - resistance threshold
MPL 40x20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	10.67 kg / 23.52 LBS 10670.0 g / 104.7 N	OK
40 °C	-2.2%	10.44 kg / 23.01 LBS 10435.3 g / 102.4 N	OK
60 °C	-4.4%	10.20 kg / 22.49 LBS 10200.5 g / 100.1 N
80 °C	-6.6%	9.97 kg / 21.97 LBS 9965.8 g / 97.8 N
100 °C	-28.8%	7.60 kg / 16.75 LBS 7597.0 g / 74.5 N

Ordinary NdFeB products irreversibly lose parameters above the temperature limit. Protect against heat – excessive heat can irreversibly destroy this product. With increasing heat, the neodymium's power temporarily drops. Avoid using this magnet close to heaters exceeding its operating temperature limit. Ignoring the limit will cause irreversible degradation of magnetism.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) are more susceptible to demagnetization sooner compared to rod magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	20.78 kg / 45.80 LBS 3 495 Gs	3.12 kg / 6.87 LBS 3116 g / 30.6 N	N/A
1 mm	19.88 kg / 43.83 LBS 4 015 Gs	2.98 kg / 6.57 LBS 2982 g / 29.3 N	17.89 kg / 39.44 LBS ~0 Gs
2 mm	18.87 kg / 41.61 LBS 3 912 Gs	2.83 kg / 6.24 LBS 2831 g / 27.8 N	16.99 kg / 37.45 LBS ~0 Gs
3 mm	17.80 kg / 39.24 LBS 3 800 Gs	2.67 kg / 5.89 LBS 2670 g / 26.2 N	16.02 kg / 35.32 LBS ~0 Gs
5 mm	15.56 kg / 34.30 LBS 3 552 Gs	2.33 kg / 5.14 LBS 2334 g / 22.9 N	14.00 kg / 30.87 LBS ~0 Gs
10 mm	10.29 kg / 22.68 LBS 2 888 Gs	1.54 kg / 3.40 LBS 1543 g / 15.1 N	9.26 kg / 20.41 LBS ~0 Gs
20 mm	3.89 kg / 8.57 LBS 1 776 Gs	0.58 kg / 1.29 LBS 583 g / 5.7 N	3.50 kg / 7.71 LBS ~0 Gs
50 mm	0.26 kg / 0.57 LBS 456 Gs	0.04 kg / 0.08 LBS 39 g / 0.4 N	0.23 kg / 0.51 LBS ~0 Gs
60 mm	0.12 kg / 0.27 LBS 313 Gs	0.02 kg / 0.04 LBS 18 g / 0.2 N	0.11 kg / 0.24 LBS ~0 Gs
70 mm	0.06 kg / 0.13 LBS 221 Gs	0.01 kg / 0.02 LBS 9 g / 0.1 N	0.05 kg / 0.12 LBS ~0 Gs
80 mm	0.03 kg / 0.07 LBS 162 Gs	0.00 kg / 0.01 LBS 5 g / 0.0 N	0.03 kg / 0.06 LBS ~0 Gs
90 mm	0.02 kg / 0.04 LBS 121 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.04 LBS ~0 Gs
100 mm	0.01 kg / 0.02 LBS 93 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs

Two magnetic products attract each other from a wider radius than a magnet and sheet setup. The setup of two magnets generates a stronger field and a further horizon of performance. Planning to create a strong closure? Apply two magnets instead of a neodymium and a striker plate. Remember that when bringing together two magnets, the collision energy is massive. The repulsion force is marginally weaker than the connection force, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
* Estimates show shear force of dual identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MPL 40x20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	11.5 cm
Hearing aid	10 Gs (1.0 mT)	9.0 cm
Mechanical watch	20 Gs (2.0 mT)	7.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.5 cm
Remote	50 Gs (5.0 mT)	5.0 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Powerful magnet radiation is a real danger to electronic devices and medical implants. These magnets produce a field that prevents correct functioning of digital equipment. Be aware: the invisible magnetic field acts through matter and glass. Special caution must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, car keys, speakers, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MPL 40x20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.13 km/h (5.87 m/s)	0.52 J
30 mm	33.06 km/h (9.18 m/s)	1.27 J
50 mm	42.54 km/h (11.82 m/s)	2.09 J
100 mm	60.15 km/h (16.71 m/s)	4.19 J

Magnetic elements are prone to chipping – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Use safety goggles when working with large magnets.

Table 9: Coating parameters (durability)
MPL 40x20x5 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MPL 40x20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	18 042 Mx	180.4 µWb
P_c Coefficient	0.23	Low (Flat)

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

Table 11: Underwater work (magnet fishing)
MPL 40x20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	10.67 kg	Standard
Water (riverbed)	12.22 kg (+1.55 kg buoyancy gain)	+14.5%

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

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

1. Vertical hold

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

2. Efficiency vs thickness

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

3. Heat tolerance

*For standard magnets, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.23

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 and environmental data

Chemical composition

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Environmental data

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 020160-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

Pounds (lbs)

Magnetic Field

Induction (Gs)

Insert your figure in any box, and the rest will convert on the fly.

View also deals

Product available Ships in 2 days

MW 70x60 / N38 - cylindrical magnet

630.01 ZŁ brutto / pcs

Product available Ships in 2 days

SM 32x400 [2xM8] / N42 - magnetic separator

1193.10 ZŁ brutto / pcs

Product available Ships in 2 days

KM HF - 22 kg - magnetic bracket

29.52 ZŁ brutto / pcs

Product available Ships in 2 days

MW 14x2 / N38 - cylindrical magnet

0.898 ZŁ brutto / pcs

This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 40x20x5 mm and a weight of 30 g, guarantees the highest quality connection. As a block magnet with high power (approx. 10.67 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.

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 40x20x5 / 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. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 10.67 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).

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 (40x20 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: 40 mm (length), 20 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 40x20x5 mm and a self-weight of 30 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of neodymium magnets.

Pros

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

They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
They feature excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
A magnet with a smooth gold surface looks better,
The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
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...
Considering the possibility of precise forming and customization to individualized requirements, NdFeB magnets can be manufactured in a broad palette of geometric configurations, which increases their versatility,
Wide application in advanced technology sectors – they are commonly used in computer drives, electric drive systems, precision medical tools, as well as multitasking production systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Drawbacks and weaknesses of neodymium magnets and ways of using them

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited ability of making nuts in the magnet and complex forms - recommended is a housing - mounting mechanism.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these products are able to complicate diagnosis medical after entering the body.
With large orders the cost of neodymium magnets can be a barrier,

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Holding force of 10.67 kg is a result of laboratory testing executed under specific, ideal conditions:

on a block made of structural steel, effectively closing the magnetic field
with a cross-section of at least 10 mm
with a plane free of scratches
under conditions of no distance (surface-to-surface)
during pulling in a direction perpendicular to the plane
at room temperature

Determinants of lifting force in real conditions

Please note that the application force will differ subject to elements below, starting with the most relevant:

Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate decreases the holding force.

Safety rules for work with NdFeB magnets

Machining danger

Powder generated during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Data carriers

Very strong magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Do not underestimate power

Exercise caution. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can react.

Adults only

NdFeB magnets are not suitable for play. Accidental ingestion of multiple magnets can lead to them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.

Bone fractures

Pinching hazard: The attraction force is so great that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.

Nickel coating and allergies

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and use protective gear.

Impact on smartphones

GPS units and mobile phones are extremely sensitive to magnetism. Direct contact with a strong magnet can ruin the internal compass in your phone.

Health Danger

People with a ICD should keep an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.

Material brittleness

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. We recommend safety glasses.

Thermal limits

Do not overheat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).

Danger! Need more info? Read our article: Are neodymium magnets dangerous?

MPL 40x20x5 / N38 - lamellar magnet

Technical - MPL 40x20x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - data

Table 1: Static pull force (force vs gap) - interaction chart MPL 40x20x5 / N38

Table 2: Shear hold (wall) MPL 40x20x5 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 40x20x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MPL 40x20x5 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MPL 40x20x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 40x20x5 / N38

Table 7: Hazards (electronics) - precautionary measures MPL 40x20x5 / N38

Table 8: Impact energy (cracking risk) - warning MPL 40x20x5 / N38

Table 9: Coating parameters (durability) MPL 40x20x5 / N38

Table 10: Construction data (Flux) MPL 40x20x5 / N38

Table 11: Underwater work (magnet fishing) MPL 40x20x5 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Environmental data

Pulling force

Magnetic Field

View also deals

MW 70x60 / N38 - cylindrical magnet

SM 32x400 [2xM8] / N42 - magnetic separator

KM HF - 22 kg - magnetic bracket

MW 14x2 / N38 - cylindrical magnet

Strengths and weaknesses of neodymium magnets.

Pros

Weaknesses

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Determinants of lifting force in real conditions

Safety rules for work with NdFeB magnets

Machining danger

Data carriers

Do not underestimate power

Adults only

Bone fractures

Nickel coating and allergies

Impact on smartphones

Health Danger

Material brittleness

Thermal limits

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MPL 40x20x5 / N38

Table 2: Shear hold (wall)
MPL 40x20x5 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x20x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 40x20x5 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MPL 40x20x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 40x20x5 / N38

Table 7: Hazards (electronics) - precautionary measures
MPL 40x20x5 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 40x20x5 / N38

Table 9: Coating parameters (durability)
MPL 40x20x5 / N38

Table 10: Construction data (Flux)
MPL 40x20x5 / N38

Table 11: Underwater work (magnet fishing)
MPL 40x20x5 / N38