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MPL 40x15x5 / 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 020153

GTIN/EAN: 5906301811596

5.00

length

40 mm [±0,1 mm]

Width

15 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

22.5 g

Magnetization Direction

↑ axial

Load capacity

11.35 kg / 111.37 N

Magnetic Induction

249.11 mT / 2491 Gs

Coating

[NiCuNi] Nickel

technical parameters »

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Lifting power and shape of a neodymium magnet can be calculated on our magnetic calculator.

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Technical parameters - MPL 40x15x5 / N38 - lamellar magnet

Specification / characteristics - MPL 40x15x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020153
GTIN/EAN	5906301811596
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	15 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	22.5 g
Magnetization Direction	↑ axial
Load capacity ~ ?	11.35 kg / 111.37 N
Magnetic Induction ~ ?	249.11 mT / 2491 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x15x5 / 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 simulation of the magnet - report

The following information represent the outcome of a engineering analysis. Results rely on algorithms for the material Nd₂Fe₁₄B. Real-world conditions might slightly differ. Please consider these calculations as a reference point during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MPL 40x15x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2490 Gs 249.0 mT	11.35 kg / 25.02 pounds 11350.0 g / 111.3 N	crushing
1 mm	2306 Gs 230.6 mT	9.73 kg / 21.45 pounds 9731.3 g / 95.5 N	warning
2 mm	2095 Gs 209.5 mT	8.03 kg / 17.70 pounds 8028.8 g / 78.8 N	warning
3 mm	1877 Gs 187.7 mT	6.45 kg / 14.21 pounds 6445.4 g / 63.2 N	warning
5 mm	1472 Gs 147.2 mT	3.97 kg / 8.74 pounds 3965.1 g / 38.9 N	warning
10 mm	792 Gs 79.2 mT	1.15 kg / 2.53 pounds 1147.1 g / 11.3 N	low risk
15 mm	454 Gs 45.4 mT	0.38 kg / 0.83 pounds 376.9 g / 3.7 N	low risk
20 mm	278 Gs 27.8 mT	0.14 kg / 0.31 pounds 141.4 g / 1.4 N	low risk
30 mm	122 Gs 12.2 mT	0.03 kg / 0.06 pounds 27.0 g / 0.3 N	low risk
50 mm	35 Gs 3.5 mT	0.00 kg / 0.01 pounds 2.3 g / 0.0 N	low risk

Magnetic force decreases significantly with every subsequent millimeter of spacing. Keep in mind that even a very thin break (e.g., contamination, paint, veneer) strongly diminishes the holding power. Neodymiums work most effectively in perfect adhesion; distance kills the power. See how quickly the pull force plummet, when the product does not touch tightly to the metal substrate. When planning the arrangement, discard redundant distances.

Table 2: Sliding capacity (vertical surface)
MPL 40x15x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.27 kg / 5.00 pounds 2270.0 g / 22.3 N
1 mm	Stal (~0.2)	1.95 kg / 4.29 pounds 1946.0 g / 19.1 N
2 mm	Stal (~0.2)	1.61 kg / 3.54 pounds 1606.0 g / 15.8 N
3 mm	Stal (~0.2)	1.29 kg / 2.84 pounds 1290.0 g / 12.7 N
5 mm	Stal (~0.2)	0.79 kg / 1.75 pounds 794.0 g / 7.8 N
10 mm	Stal (~0.2)	0.23 kg / 0.51 pounds 230.0 g / 2.3 N
15 mm	Stal (~0.2)	0.08 kg / 0.17 pounds 76.0 g / 0.7 N
20 mm	Stal (~0.2)	0.03 kg / 0.06 pounds 28.0 g / 0.3 N
30 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The table below presents the theoretical holding capacity needed to cause the sliding of the magnet vertically along a vertical steel plate (assuming standard friction). This parameter varies with the air gap between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x15x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.41 kg / 7.51 pounds 3405.0 g / 33.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.27 kg / 5.00 pounds 2270.0 g / 22.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.14 kg / 2.50 pounds 1135.0 g / 11.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.68 kg / 12.51 pounds 5675.0 g / 55.7 N

When hanging a holder on a upright wall (e.g., a car body), it you can count on barely approx. 20%-30% of its maximum pull force. Gravity and a low friction coefficient cause that products move down faster than they detach. Want to create a vertical fastening? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the holder will slip down under a much lighter load. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Steel thickness (saturation) - power losses
MPL 40x15x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.57 kg / 1.25 pounds 567.5 g / 5.6 N
1 mm	13%	1.42 kg / 3.13 pounds 1418.8 g / 13.9 N
2 mm	25%	2.84 kg / 6.26 pounds 2837.5 g / 27.8 N
3 mm	38%	4.26 kg / 9.38 pounds 4256.3 g / 41.8 N
5 mm	63%	7.09 kg / 15.64 pounds 7093.8 g / 69.6 N
10 mm	100%	11.35 kg / 25.02 pounds 11350.0 g / 111.3 N
11 mm	100%	11.35 kg / 25.02 pounds 11350.0 g / 111.3 N
12 mm	100%	11.35 kg / 25.02 pounds 11350.0 g / 111.3 N

A thin metal plate is unable to absorb the full magnetic flux, which squanders power of the holder. If you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To utilize 100% of this neodymium's potential, you need a suitably thick backing of steel. The saturation phenomenon causes that on thin elements (e.g., car bodies), the holder holds weaker. We recommend selecting the steel thickness based on the following data.

Table 5: Working in heat (stability) - resistance threshold
MPL 40x15x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	11.35 kg / 25.02 pounds 11350.0 g / 111.3 N	OK
40 °C	-2.2%	11.10 kg / 24.47 pounds 11100.3 g / 108.9 N	OK
60 °C	-4.4%	10.85 kg / 23.92 pounds 10850.6 g / 106.4 N
80 °C	-6.6%	10.60 kg / 23.37 pounds 10600.9 g / 104.0 N
100 °C	-28.8%	8.08 kg / 17.82 pounds 8081.2 g / 79.3 N

Classic neodymiums lose parameters above the temperature limit. Protect against heat – excessive heat can permanently demagnetize this product. With every degree above norm, the magnet's power temporarily decreases. Refrain from using this magnet in hot environments higher than its operating temperature limit. Too high temperature will cause permanent loss of magnetic properties.

*Technical advisory: Thermal stability depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than taller cylinders. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - field range
MPL 40x15x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	22.94 kg / 50.58 pounds 3 961 Gs	3.44 kg / 7.59 pounds 3441 g / 33.8 N	N/A
1 mm	21.37 kg / 47.11 pounds 4 807 Gs	3.21 kg / 7.07 pounds 3205 g / 31.4 N	19.23 kg / 42.40 pounds ~0 Gs
2 mm	19.67 kg / 43.37 pounds 4 612 Gs	2.95 kg / 6.50 pounds 2951 g / 28.9 N	17.70 kg / 39.03 pounds ~0 Gs
3 mm	17.94 kg / 39.55 pounds 4 404 Gs	2.69 kg / 5.93 pounds 2691 g / 26.4 N	16.15 kg / 35.59 pounds ~0 Gs
5 mm	14.58 kg / 32.15 pounds 3 971 Gs	2.19 kg / 4.82 pounds 2187 g / 21.5 N	13.12 kg / 28.93 pounds ~0 Gs
10 mm	8.01 kg / 17.67 pounds 2 944 Gs	1.20 kg / 2.65 pounds 1202 g / 11.8 N	7.21 kg / 15.90 pounds ~0 Gs
20 mm	2.32 kg / 5.11 pounds 1 583 Gs	0.35 kg / 0.77 pounds 348 g / 3.4 N	2.09 kg / 4.60 pounds ~0 Gs
50 mm	0.12 kg / 0.26 pounds 359 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.24 pounds ~0 Gs
60 mm	0.05 kg / 0.12 pounds 243 Gs	0.01 kg / 0.02 pounds 8 g / 0.1 N	0.05 kg / 0.11 pounds ~0 Gs
70 mm	0.03 kg / 0.06 pounds 171 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs
80 mm	0.01 kg / 0.03 pounds 124 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.03 pounds ~0 Gs
90 mm	0.01 kg / 0.02 pounds 92 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.01 pounds 70 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a much further distance than a magnet and steel combination. The connection of magnet-to-magnet produces a massive flux and a further horizon of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a steel. Exercise caution that when bringing together two magnets, the impact force is huge. The levitation is slightly lower than the attraction, but still impressive.
*The magnetic induction between like poles is approximately ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Important: Calculations refer to friction force of two same magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - precautionary measures
MPL 40x15x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.5 cm
Hearing aid	10 Gs (1.0 mT)	8.0 cm
Mechanical watch	20 Gs (2.0 mT)	6.5 cm
Mobile device	40 Gs (4.0 mT)	5.0 cm
Car key	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

A strong magnetic field poses a large risk to IT equipment as well as pacemakers. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x15x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.04 km/h (6.68 m/s)	0.50 J
30 mm	39.29 km/h (10.91 m/s)	1.34 J
50 mm	50.66 km/h (14.07 m/s)	2.23 J
100 mm	71.63 km/h (19.90 m/s)	4.45 J

NdFeB products are very brittle – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely speeds with massive force. Striking energy can cause material chips or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when playing with large magnets.

Table 9: Anti-corrosion coating durability
MPL 40x15x5 / 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: Construction data (P_c)
MPL 40x15x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	14 969 Mx	149.7 µWb
P_c Coefficient	0.26	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 40x15x5 / N38

Environment	Effective steel pull	Effect
Air (land)	11.35 kg	Standard
Water (riverbed)	13.00 kg (+1.65 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Note: On a vertical wall, the magnet holds merely approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

*Thin steel (e.g. computer case) drastically limits the holding force.

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.26

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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%

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: 020153-2026

Magnet Unit Converter

Force (pull)

Newtons (N)

Pounds (lbs)

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Induction (Gs)

Induction (T)

Just populate one field, and the tool compute everything else automatically.

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Component MPL 40x15x5 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 111.37 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.

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 11.35 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 40x15x5 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as fasteners under tiles, wood, or glass. 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 40x15x5 / N38, we recommend utilizing 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. In practice, this means that this magnet has the greatest attraction force on its main planes (40x15 mm), which is ideal for flat mounting. 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: 40 mm (length), 15 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 40x15x5 mm and a self-weight of 22.5 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of neodymium magnets.

Strengths

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They do not lose strength, even over approximately ten years – the reduction in power is only ~1% (according to tests),
They have excellent resistance to magnetic field loss due to external fields,
A magnet with a shiny nickel surface looks better,
Neodymium magnets create maximum magnetic induction on a their surface, 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...
Possibility of exact modeling as well as adjusting to complex applications,
Fundamental importance in innovative solutions – they serve a role in magnetic memories, electric motors, advanced medical instruments, also multitasking production systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
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, when using outdoors
We recommend a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated shapes.
Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these magnets are able to be problematic in diagnostics medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Maximum holding power of the magnet – what affects it?

The force parameter is a theoretical maximum value performed under standard conditions:

with the application of a yoke made of low-carbon steel, ensuring maximum field concentration
whose transverse dimension is min. 10 mm
characterized by smoothness
with zero gap (without coatings)
for force acting at a right angle (in the magnet axis)
at temperature approx. 20 degrees Celsius

Key elements affecting lifting force

In real-world applications, the actual lifting capacity results from many variables, listed from most significant:

Gap (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, corrosion or dirt).
Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of nominal force).
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Metal type – different alloys reacts the same. Alloy additives weaken the attraction effect.
Surface finish – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with NdFeB magnets

Compass and GPS

A strong magnetic field disrupts the functioning of compasses in smartphones and GPS navigation. Do not bring magnets close to a device to avoid damaging the sensors.

Keep away from children

Always keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are fatal.

Respect the power

Handle with care. Neodymium magnets act from a distance and snap with huge force, often quicker than you can move away.

Dust is flammable

Dust created during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Heat warning

Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Cards and drives

Device Safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).

Finger safety

Protect your hands. Two large magnets will join instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Life threat

Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Risk of cracking

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.

Avoid contact if allergic

Certain individuals have a contact allergy to nickel, which is the standard coating for NdFeB magnets. Frequent touching may cause an allergic reaction. It is best to wear protective gloves.

Security! Want to know more? Read our article: Why are neodymium magnets dangerous?

MPL 40x15x5 / N38 - lamellar magnet

Technical parameters - MPL 40x15x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - report

Table 1: Static force (force vs gap) - characteristics MPL 40x15x5 / N38

Table 2: Sliding capacity (vertical surface) MPL 40x15x5 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 40x15x5 / N38

Table 4: Steel thickness (saturation) - power losses MPL 40x15x5 / N38

Table 5: Working in heat (stability) - resistance threshold MPL 40x15x5 / N38

Table 6: Two magnets (attraction) - field range MPL 40x15x5 / N38

Table 7: Protective zones (implants) - precautionary measures MPL 40x15x5 / N38

Table 8: Collisions (kinetic energy) - collision effects MPL 40x15x5 / N38

Table 9: Anti-corrosion coating durability MPL 40x15x5 / N38

Table 10: Construction data (Pc) MPL 40x15x5 / N38

Table 11: Physics of underwater searching MPL 40x15x5 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Sustainability

Force (pull)

Field Strength

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Strengths as well as weaknesses of neodymium magnets.

Strengths

Weaknesses

Holding force characteristics

Maximum holding power of the magnet – what affects it?

Key elements affecting lifting force

Safety rules for work with NdFeB magnets

Compass and GPS

Keep away from children

Respect the power

Dust is flammable

Heat warning

Cards and drives

Finger safety

Life threat

Risk of cracking

Avoid contact if allergic

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MPL 40x15x5 / N38

Table 2: Sliding capacity (vertical surface)
MPL 40x15x5 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 40x15x5 / N38

Table 4: Steel thickness (saturation) - power losses
MPL 40x15x5 / N38

Table 5: Working in heat (stability) - resistance threshold
MPL 40x15x5 / N38

Table 6: Two magnets (attraction) - field range
MPL 40x15x5 / N38

Table 7: Protective zones (implants) - precautionary measures
MPL 40x15x5 / N38

Table 8: Collisions (kinetic energy) - collision effects
MPL 40x15x5 / N38

Table 9: Anti-corrosion coating durability
MPL 40x15x5 / N38

Table 10: Construction data (P_c)
MPL 40x15x5 / N38

Table 11: Physics of underwater searching
MPL 40x15x5 / N38