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MPL 40x5x3 / 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 020402

GTIN/EAN: 5906301811916

length

40 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

4.5 g

Magnetization Direction

↑ axial

Load capacity

7.33 kg / 71.91 N

Magnetic Induction

348.83 mT / 3488 Gs

Coating

[NiCuNi] Nickel

view properties »

6.65 ZŁ with VAT / pcs + price for transport

5.41 ZŁ net + 23% VAT / pcs

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Technical data of the product - MPL 40x5x3 / N38 - lamellar magnet

Specification / characteristics - MPL 40x5x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020402
GTIN/EAN	5906301811916
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	5 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	4.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.33 kg / 71.91 N
Magnetic Induction ~ ?	348.83 mT / 3488 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x5x3 / 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 modeling of the magnet - technical parameters

The following data constitute the direct effect of a physical analysis. Values were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions may deviate from the simulation results. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static pull force (force vs distance) - power drop
MPL 40x5x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3485 Gs 348.5 mT	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N	warning
1 mm	2529 Gs 252.9 mT	3.86 kg / 8.51 LBS 3859.9 g / 37.9 N	warning
2 mm	1741 Gs 174.1 mT	1.83 kg / 4.03 LBS 1829.7 g / 17.9 N	weak grip
3 mm	1217 Gs 121.7 mT	0.89 kg / 1.97 LBS 893.7 g / 8.8 N	weak grip
5 mm	664 Gs 66.4 mT	0.27 kg / 0.59 LBS 265.9 g / 2.6 N	weak grip
10 mm	235 Gs 23.5 mT	0.03 kg / 0.07 LBS 33.5 g / 0.3 N	weak grip
15 mm	116 Gs 11.6 mT	0.01 kg / 0.02 LBS 8.2 g / 0.1 N	weak grip
20 mm	67 Gs 6.7 mT	0.00 kg / 0.01 LBS 2.7 g / 0.0 N	weak grip
30 mm	27 Gs 2.7 mT	0.00 kg / 0.00 LBS 0.5 g / 0.0 N	weak grip
50 mm	8 Gs 0.8 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically with every subsequent millimeter of spacing. Note that even a very thin break (e.g., contamination, paint, veneer) noticeably diminishes the holding power. Magnetic products work most effectively in perfect adhesion; distance drastically cuts the force. Analyze how quickly the pull force plummet, when the magnet does not touch tightly to the metal substrate. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Slippage load (vertical surface)
MPL 40x5x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.47 kg / 3.23 LBS 1466.0 g / 14.4 N
1 mm	Stal (~0.2)	0.77 kg / 1.70 LBS 772.0 g / 7.6 N
2 mm	Stal (~0.2)	0.37 kg / 0.81 LBS 366.0 g / 3.6 N
3 mm	Stal (~0.2)	0.18 kg / 0.39 LBS 178.0 g / 1.7 N
5 mm	Stal (~0.2)	0.05 kg / 0.12 LBS 54.0 g / 0.5 N
10 mm	Stal (~0.2)	0.01 kg / 0.01 LBS 6.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The following data calculates the estimated weight limit required to cause the slippage of the magnet down against a vertical steel plate (considering standard friction). This value is a function of the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 40x5x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.20 kg / 4.85 LBS 2199.0 g / 21.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.47 kg / 3.23 LBS 1466.0 g / 14.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.73 kg / 1.62 LBS 733.0 g / 7.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.67 kg / 8.08 LBS 3665.0 g / 36.0 N

When placing a magnet on a upright surface (e.g., a board), it you can count on only about 20%-30% of its maximum pull force. Gravitational force as well as a low friction coefficient mean that holders slip faster than they pull off. Want to create a hanger? Remember that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the element will slide down under a much lighter cargo. Utilizing a rubberized coating can effectively raise the stability.

Table 4: Material efficiency (saturation) - power losses
MPL 40x5x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.73 kg / 1.62 LBS 733.0 g / 7.2 N
1 mm	25%	1.83 kg / 4.04 LBS 1832.5 g / 18.0 N
2 mm	50%	3.67 kg / 8.08 LBS 3665.0 g / 36.0 N
3 mm	75%	5.50 kg / 12.12 LBS 5497.5 g / 53.9 N
5 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N
10 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N
11 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N
12 mm	100%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N

A thin metal plate is incapable of absorb the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a too thin substrate, the flux will pass right through and the holding will be smaller. To squeeze full efficiency of this neodymium's potential, you require a sufficiently solid piece of steel. The saturation phenomenon causes that on sheet metal structures (e.g., car bodies), the holder holds weaker. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 40x5x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.33 kg / 16.16 LBS 7330.0 g / 71.9 N	OK
40 °C	-2.2%	7.17 kg / 15.80 LBS 7168.7 g / 70.3 N	OK
60 °C	-4.4%	7.01 kg / 15.45 LBS 7007.5 g / 68.7 N
80 °C	-6.6%	6.85 kg / 15.09 LBS 6846.2 g / 67.2 N
100 °C	-28.8%	5.22 kg / 11.51 LBS 5219.0 g / 51.2 N

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Protect against heat – excessive heat can permanently damage this product. With increasing heat, the magnet's capacity momentarily lowers. Do not use this magnet in hot environments higher than its operating temperature limit. Exceeding the critical threshold will result in permanent loss of magnetic properties.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) are more susceptible to demagnetization at lower temperatures than long magnets. Warning indicator in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	14.97 kg / 33.01 LBS 4 697 Gs	2.25 kg / 4.95 LBS 2246 g / 22.0 N	N/A
1 mm	11.16 kg / 24.61 LBS 6 017 Gs	1.67 kg / 3.69 LBS 1674 g / 16.4 N	10.04 kg / 22.15 LBS ~0 Gs
2 mm	7.88 kg / 17.38 LBS 5 058 Gs	1.18 kg / 2.61 LBS 1183 g / 11.6 N	7.10 kg / 15.64 LBS ~0 Gs
3 mm	5.44 kg / 11.99 LBS 4 201 Gs	0.82 kg / 1.80 LBS 816 g / 8.0 N	4.90 kg / 10.79 LBS ~0 Gs
5 mm	2.59 kg / 5.71 LBS 2 899 Gs	0.39 kg / 0.86 LBS 389 g / 3.8 N	2.33 kg / 5.14 LBS ~0 Gs
10 mm	0.54 kg / 1.20 LBS 1 328 Gs	0.08 kg / 0.18 LBS 81 g / 0.8 N	0.49 kg / 1.08 LBS ~0 Gs
20 mm	0.07 kg / 0.15 LBS 471 Gs	0.01 kg / 0.02 LBS 10 g / 0.1 N	0.06 kg / 0.14 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 83 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 55 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 38 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 27 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 20 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 15 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products attract each other from a much further distance than a magnet and sheet combination. The connection of magnet-to-magnet produces a massive flux and a wider radius of action. Designing a powerful holder? Use a pair of magnets instead of one magnet and a steel. Be careful that when attracting two neodymiums, the collision energy is massive. The repulsion force is slightly lower than the connection force, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Important: Estimates apply to sliding force of two identical magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MPL 40x5x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.0 cm
Hearing aid	10 Gs (1.0 mT)	4.5 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Mobile device	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	2.5 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation is a serious hazard to electronics as well as pacemakers. These neodymiums generate a flux that disrupts operation of digital equipment. Remember: the unseen radiation passes through tissues and housings. Exceptional care must be exercised by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MPL 40x5x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	40.82 km/h (11.34 m/s)	0.29 J
30 mm	70.50 km/h (19.58 m/s)	0.86 J
50 mm	91.02 km/h (25.28 m/s)	1.44 J
100 mm	128.71 km/h (35.75 m/s)	2.88 J

Magnetic elements are prone to chipping – a violent impact against metal risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Kinetic force can trigger coating fragments or injury to fingers. Be sure to control the product during installation so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MPL 40x5x3 / 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 40x5x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 123 Mx	51.2 µWb
P_c Coefficient	0.27	Low (Flat)

Flux value passing through the magnet pole. Key data when building generators as well as sensors. P_c value determines the working geometry.

Table 11: Hydrostatics and buoyancy
MPL 40x5x3 / N38

Environment	Effective steel pull	Effect
Air (land)	7.33 kg	Standard
Water (riverbed)	8.39 kg (+1.06 kg buoyancy gain)	+14.5%

Corrosion warning: 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.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds just a fraction of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically weakens the holding force.

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.27

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR

Elemental analysis

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

Environmental data

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 020402-2026

Magnet Unit Converter

Pulling force

Force in kg

Force in lbs

Field Strength

Gauss (Gs)

Input a figure in just one field to see the conversion for all other units immediately.

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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 40x5x3 mm and a weight of 4.5 g, guarantees the highest quality connection. This magnetic block with a force of 71.91 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 sliding 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 40x5x3 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, 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.

Plate magnets MPL 40x5x3 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as invisible mounts under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Remember to roughen and wash 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. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 40x5x3 mm, which, at a weight of 4.5 g, makes it an element with high energy density. It is a magnetic block with dimensions 40x5x3 mm and a self-weight of 4.5 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of rare earth magnets.

Advantages

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

Their strength is durable, and after around ten years it decreases only by ~1% (according to research),
They are extremely resistant to demagnetization induced by presence of other magnetic fields,
A magnet with a shiny nickel surface has an effective appearance,
Neodymium magnets achieve maximum magnetic induction on a contact point, which increases force concentration,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to freedom in shaping and the capacity to adapt to individual projects,
Versatile presence in modern technologies – they are utilized in hard drives, brushless drives, medical devices, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in small systems

Disadvantages

Cons of neodymium magnets and proposals for their use:

To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
We recommend cover - magnetic mechanism, due to difficulties in realizing threads inside the magnet and complicated shapes.
Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that small components of these magnets can disrupt the diagnostic process medical in case of swallowing.
Due to neodymium price, their price exceeds standard values,

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

The force parameter is a measurement result executed under the following configuration:

with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
with a thickness minimum 10 mm
with an ideally smooth contact surface
with direct contact (without paint)
during pulling in a direction perpendicular to the plane
at ambient temperature room level

Determinants of practical lifting force of a magnet

Please note that the working load will differ influenced by elements below, starting with the most relevant:

Space between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Plate material – mild steel gives the best results. Alloy steels decrease magnetic permeability and lifting capacity.
Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the holding force.

H&S for magnets

Pacemakers

Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Immense force

Be careful. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can react.

Machining danger

Powder produced during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Safe distance

Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Keep away from electronics

Remember: rare earth magnets produce a field that disrupts precision electronics. Maintain a separation from your mobile, device, and navigation systems.

Do not give to children

Absolutely keep magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Heat sensitivity

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Risk of cracking

NdFeB magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them shattering into shards.

Finger safety

Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Sensitization to coating

A percentage of the population have a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling might lead to an allergic reaction. It is best to use protective gloves.

Danger! More info about risks in the article: Magnet Safety Guide.

MPL 40x5x3 / N38 - lamellar magnet

Technical data of the product - MPL 40x5x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the magnet - technical parameters

Table 1: Static pull force (force vs distance) - power drop MPL 40x5x3 / N38

Table 2: Slippage load (vertical surface) MPL 40x5x3 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 40x5x3 / N38

Table 4: Material efficiency (saturation) - power losses MPL 40x5x3 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MPL 40x5x3 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MPL 40x5x3 / N38

Table 7: Hazards (electronics) - precautionary measures MPL 40x5x3 / N38

Table 8: Impact energy (cracking risk) - warning MPL 40x5x3 / N38

Table 9: Surface protection spec MPL 40x5x3 / N38

Table 10: Electrical data (Pc) MPL 40x5x3 / N38

Table 11: Hydrostatics and buoyancy MPL 40x5x3 / N38

1. Sliding resistance

2. Plate thickness effect

3. Power loss vs temp

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

Elemental analysis

Environmental data

Pulling force

Field Strength

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Advantages and disadvantages of rare earth magnets.

Advantages

Disadvantages

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Determinants of practical lifting force of a magnet

H&S for magnets

Pacemakers

Immense force

Machining danger

Safe distance

Keep away from electronics

Do not give to children

Heat sensitivity

Risk of cracking

Finger safety

Sensitization to coating

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - power drop
MPL 40x5x3 / N38

Table 2: Slippage load (vertical surface)
MPL 40x5x3 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 40x5x3 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 40x5x3 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MPL 40x5x3 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MPL 40x5x3 / N38

Table 7: Hazards (electronics) - precautionary measures
MPL 40x5x3 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 40x5x3 / N38

Table 9: Surface protection spec
MPL 40x5x3 / N38

Table 10: Electrical data (P_c)
MPL 40x5x3 / N38

Table 11: Hydrostatics and buoyancy
MPL 40x5x3 / N38