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MPL 40x5x3 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
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

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Technical 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

Engineering analysis of the product - technical parameters

These data represent the result of a physical calculation. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world performance may differ. Please consider these data as a supplementary guide for designers.

Table 1: Static force (pull vs gap) - 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	strong
1 mm	2529 Gs 252.9 mT	3.86 kg / 8.51 LBS 3859.9 g / 37.9 N	strong
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

Pulling power decreases sharply with every subsequent millimeter of distance. Keep in mind that even a microscopic distance (e.g., dirt, paint, dust) noticeably diminishes the holding power. Neodymiums hold strongest during direct contact; air break kills the force. Analyze how rapidly the load capacity drop, when the product does not touch directly to the metal substrate. When planning the arrangement, avoid unnecessary gaps.

Table 2: Shear capacity (wall)
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

This section indicates the estimated force needed to cause the downward movement of the magnet vertically on a upright steel plate (considering standard friction). This parameter varies with the air gap between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
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 element on a upright plane (e.g., a car body), it will only hold just approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient influence the fact that products slide down easier than they pop off the substrate. Designing a wall mount? Note that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a noticeably lighter weight. Application of an anti-slip layer can drastically raise the stability.

Table 4: Steel thickness (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 sheet is unable to focus the full magnetic flux, which weakens actual performance of the magnet. If you install a neodymium to a too thin substrate, the field will pass right through and the pull force will drop sharply. To achieve the maximum of this magnet's power, you need a suitably thick element of metal. The saturation effect causes that on thin elements (e.g., appliance housings), the holder shows lower pull force. We advise picking the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - resistance threshold
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

Ordinary NdFeB products irreversibly lose strength above the temperature limit. Avoid high temperatures – excessive heat can irreversibly damage this magnet. As the temperature rises, the magnet's capacity briefly decreases. Avoid using this magnet close to heaters exceeding its working range. Ignoring the limit will result in irreversible degradation of magnetic properties.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization under lower heat stress than taller cylinders. Warning indicator in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MPL 40x5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (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 steel combination. Such a system of magnet-to-magnet produces a massive flux and a larger range of action. Designing a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still large.
*The magnetic induction for N-N configuration reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Attention: Estimates refer to sliding force of two matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
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

Extremely neodym field poses a serious hazard to IT equipment as well as medical implants. These NdFeB products produce a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and plastic. Increased vigilance must be taken by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Collisions (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

NdFeB products are delicate – a strong collision with metal can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Impact energy can cause material chips or painful pinches to skin. Be sure to control the product during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Use safety goggles 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 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: Electrical data (Flux)
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 emitted by the magnet pole. Essential parameter when building generators as well as sensors. P_c value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
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: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Efficiency vs thickness

*Thin steel (e.g. computer case) severely reduces the holding force.

3. Temperature resistance

*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) = 0.27

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.

Technical and environmental data

Material specification

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: 020402-2026

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MPL 20x5x5 / N38 - lamellar magnet

2.76 ZŁ brutto / pcs

This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 40x5x3 mm and a weight of 4.5 g, guarantees premium class connection. As a block magnet with high power (approx. 7.33 kg), this product is available off-the-shelf from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating strong flat 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 7.33 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 40x5x3 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. Thanks to the flat surface and high force (approx. 7.33 kg), they are ideal as hidden locks 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. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

Standardly, the MPL 40x5x3 / N38 model is magnetized through the thickness (dimension 3 mm), which means that the N and S poles are located on its largest, flat surfaces. 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.

This model is characterized by dimensions 40x5x3 mm, which, at a weight of 4.5 g, makes it an element with high energy density. The key parameter here is the lifting capacity amounting to approximately 7.33 kg (force ~71.91 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Strengths

Apart from their notable holding force, neodymium magnets have these key benefits:

Their magnetic field is durable, and after approximately ten years it drops only by ~1% (theoretically),
They have excellent resistance to weakening of magnetic properties when exposed to opposing magnetic fields,
By covering with a lustrous coating of silver, the element has an nice look,
They show high magnetic induction at the operating surface, which increases their power,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
Thanks to freedom in forming and the capacity to adapt to specific needs,
Fundamental importance in electronics industry – they are commonly used in magnetic memories, electric motors, precision medical tools, also multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions

Limitations

Disadvantages of neodymium magnets:

They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
When exposed to high temperature, neodymium magnets suffer a drop in power. 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
They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complex forms.
Possible danger to health – tiny shards of magnets are risky, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products can disrupt the diagnostic process medical after entering the body.
Due to expensive raw materials, their price is relatively high,

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what affects it?

Magnet power was defined for optimal configuration, including:

with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
possessing a massiveness of min. 10 mm to avoid saturation
with an ideally smooth contact surface
under conditions of gap-free contact (metal-to-metal)
during detachment in a direction perpendicular to the plane
in stable room temperature

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the application force will differ subject to the following factors, in order of importance:

Air gap (betwixt the magnet and the metal), because even a very small distance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
Load vector – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Plate material – mild steel attracts best. Alloy steels lower magnetic permeability and lifting capacity.
Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

H&S for magnets

Compass and GPS

An intense magnetic field interferes with the operation of compasses in smartphones and navigation systems. Maintain magnets close to a device to prevent damaging the sensors.

Magnetic media

Equipment safety: Neodymium magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, timepieces).

Combustion hazard

Machining of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Medical interference

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

Powerful field

Handle with care. Rare earth magnets act from a distance and connect with massive power, often faster than you can react.

Nickel allergy

A percentage of the population suffer from a hypersensitivity to Ni, which is the common plating for neodymium magnets. Prolonged contact might lead to dermatitis. We suggest use safety gloves.

Beware of splinters

Watch out for shards. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

Serious injuries

Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Be careful!

Maximum temperature

Keep cool. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Danger to the youngest

These products are not intended for children. Swallowing several magnets can lead to them pinching intestinal walls, which poses a direct threat to life and necessitates urgent medical intervention.

Security! Want to know more? Check our post: Are neodymium magnets dangerous?

MPL 40x5x3 / N38 - lamellar magnet

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - technical parameters

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

Table 2: Shear capacity (wall) MPL 40x5x3 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 40x5x3 / N38

Table 4: Steel thickness (saturation) - power losses MPL 40x5x3 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MPL 40x5x3 / N38

Table 6: Two magnets (attraction) - forces in the system MPL 40x5x3 / N38

Table 7: Safety (HSE) (implants) - warnings MPL 40x5x3 / N38

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

Table 9: Surface protection spec MPL 40x5x3 / N38

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

Table 11: Underwater work (magnet fishing) MPL 40x5x3 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Sustainability

Pulling force

Field Strength

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Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

Limitations

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what affects it?

Impact of factors on magnetic holding capacity in practice

H&S for magnets

Compass and GPS

Magnetic media

Combustion hazard

Medical interference

Powerful field

Nickel allergy

Beware of splinters

Serious injuries

Maximum temperature

Danger to the youngest

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear capacity (wall)
MPL 40x5x3 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 40x5x3 / N38

Table 4: Steel thickness (saturation) - power losses
MPL 40x5x3 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MPL 40x5x3 / N38

Table 6: Two magnets (attraction) - forces in the system
MPL 40x5x3 / N38

Table 7: Safety (HSE) (implants) - warnings
MPL 40x5x3 / N38

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

Table 9: Surface protection spec
MPL 40x5x3 / N38

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

Table 11: Underwater work (magnet fishing)
MPL 40x5x3 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.