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MPL 25x10x3 / 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 020387

GTIN/EAN: 5906301811862

5.00

length

25 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

5.63 g

Magnetization Direction

↑ axial

Load capacity

4.14 kg / 40.56 N

Magnetic Induction

230.69 mT / 2307 Gs

Coating

[NiCuNi] Nickel

product parameters »

3.57 ZŁ with VAT / pcs + price for transport

2.90 ZŁ net + 23% VAT / pcs

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Product card - MPL 25x10x3 / N38 - lamellar magnet

Specification / characteristics - MPL 25x10x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020387
GTIN/EAN	5906301811862
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	25 mm [±0,1 mm]
Width	10 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	5.63 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.14 kg / 40.56 N
Magnetic Induction ~ ?	230.69 mT / 2307 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 25x10x3 / 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 - report

The following data are the result of a engineering simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - characteristics
MPL 25x10x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2306 Gs 230.6 mT	4.14 kg / 9.13 lbs 4140.0 g / 40.6 N	medium risk
1 mm	2050 Gs 205.0 mT	3.27 kg / 7.21 lbs 3272.4 g / 32.1 N	medium risk
2 mm	1752 Gs 175.2 mT	2.39 kg / 5.27 lbs 2388.9 g / 23.4 N	medium risk
3 mm	1463 Gs 146.3 mT	1.67 kg / 3.68 lbs 1667.1 g / 16.4 N	safe
5 mm	1000 Gs 100.0 mT	0.78 kg / 1.72 lbs 779.2 g / 7.6 N	safe
10 mm	416 Gs 41.6 mT	0.13 kg / 0.30 lbs 134.4 g / 1.3 N	safe
15 mm	200 Gs 20.0 mT	0.03 kg / 0.07 lbs 31.0 g / 0.3 N	safe
20 mm	108 Gs 10.8 mT	0.01 kg / 0.02 lbs 9.0 g / 0.1 N	safe
30 mm	40 Gs 4.0 mT	0.00 kg / 0.00 lbs 1.3 g / 0.0 N	safe
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe

Magnetic force weakens drastically with every mm of gap. Note that even a very thin break (e.g., dirt, paint, dust) noticeably reduces the pull force. Neodymiums hold most effectively in perfect adhesion; distance nullifies the force. See how flashily the load capacity drop, when the product does not adhere tightly to the metal substrate. When designing the arrangement, eliminate unnecessary gaps.

Table 2: Sliding hold (wall)
MPL 25x10x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.83 kg / 1.83 lbs 828.0 g / 8.1 N
1 mm	Stal (~0.2)	0.65 kg / 1.44 lbs 654.0 g / 6.4 N
2 mm	Stal (~0.2)	0.48 kg / 1.05 lbs 478.0 g / 4.7 N
3 mm	Stal (~0.2)	0.33 kg / 0.74 lbs 334.0 g / 3.3 N
5 mm	Stal (~0.2)	0.16 kg / 0.34 lbs 156.0 g / 1.5 N
10 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 26.0 g / 0.3 N
15 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 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 shows the approximate force required to start the downward movement of the magnet vertically along a vertical steel plate (assuming typical friction). This parameter varies with the gap size between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MPL 25x10x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.24 kg / 2.74 lbs 1242.0 g / 12.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.83 kg / 1.83 lbs 828.0 g / 8.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.41 kg / 0.91 lbs 414.0 g / 4.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.07 kg / 4.56 lbs 2070.0 g / 20.3 N

When mounting a holder on a vertical plane (e.g., a car body), it will maintain barely approx. 1/5 of its nominal power. Gravitational force and a low friction coefficient mean that holders slip easier than they pop off the substrate. Want to create a hanger? Note that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a significantly smaller cargo. Utilizing a rubberized pad can effectively improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 25x10x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.41 kg / 0.91 lbs 414.0 g / 4.1 N
1 mm	25%	1.04 kg / 2.28 lbs 1035.0 g / 10.2 N
2 mm	50%	2.07 kg / 4.56 lbs 2070.0 g / 20.3 N
3 mm	75%	3.10 kg / 6.85 lbs 3105.0 g / 30.5 N
5 mm	100%	4.14 kg / 9.13 lbs 4140.0 g / 40.6 N
10 mm	100%	4.14 kg / 9.13 lbs 4140.0 g / 40.6 N
11 mm	100%	4.14 kg / 9.13 lbs 4140.0 g / 40.6 N
12 mm	100%	4.14 kg / 9.13 lbs 4140.0 g / 40.6 N

A thin sheet is unable to take in the full magnetic flux, which squanders power of the magnet. Should you attach a powerful product to a weak sheet, the field will pass right through and the pull force will drop sharply. To utilize full efficiency of this magnet's potential, you require a sufficiently solid element of steel. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the holder works worse. We advise picking the steel cross-section based on the following data.

Table 5: Working in heat (stability) - thermal limit
MPL 25x10x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.14 kg / 9.13 lbs 4140.0 g / 40.6 N	OK
40 °C	-2.2%	4.05 kg / 8.93 lbs 4048.9 g / 39.7 N	OK
60 °C	-4.4%	3.96 kg / 8.73 lbs 3957.8 g / 38.8 N
80 °C	-6.6%	3.87 kg / 8.52 lbs 3866.8 g / 37.9 N
100 °C	-28.8%	2.95 kg / 6.50 lbs 2947.7 g / 28.9 N

Classic neodymiums irreversibly lose power after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly demagnetize this magnet. As the temperature rises, the magnet's power momentarily lowers. Avoid using this product close to heaters exceeding its operating temperature limit. Ignoring the limit will result in destruction of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) risk losing magnetic properties sooner than long magnets. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field range
MPL 25x10x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	8.20 kg / 18.07 lbs 3 767 Gs	1.23 kg / 2.71 lbs 1230 g / 12.1 N	N/A
1 mm	7.38 kg / 16.27 lbs 4 377 Gs	1.11 kg / 2.44 lbs 1107 g / 10.9 N	6.64 kg / 14.65 lbs ~0 Gs
2 mm	6.48 kg / 14.28 lbs 4 101 Gs	0.97 kg / 2.14 lbs 972 g / 9.5 N	5.83 kg / 12.86 lbs ~0 Gs
3 mm	5.58 kg / 12.30 lbs 3 805 Gs	0.84 kg / 1.84 lbs 837 g / 8.2 N	5.02 kg / 11.07 lbs ~0 Gs
5 mm	3.97 kg / 8.74 lbs 3 208 Gs	0.59 kg / 1.31 lbs 595 g / 5.8 N	3.57 kg / 7.87 lbs ~0 Gs
10 mm	1.54 kg / 3.40 lbs 2 001 Gs	0.23 kg / 0.51 lbs 231 g / 2.3 N	1.39 kg / 3.06 lbs ~0 Gs
20 mm	0.27 kg / 0.59 lbs 831 Gs	0.04 kg / 0.09 lbs 40 g / 0.4 N	0.24 kg / 0.53 lbs ~0 Gs
50 mm	0.01 kg / 0.01 lbs 127 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.01 lbs 80 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 54 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 38 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 27 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 20 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products interact from a significantly greater distance than a neodymium and metal setup. The setup of two magnets generates a stronger field and a further horizon of action. Want to build a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the pinch force is huge. The repulsion force is slightly lower than the attraction, but still impressive.
*Field value between like poles drops to ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Figures demonstrate shear force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MPL 25x10x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Mechanical watch	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.5 cm
Remote	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field poses a real danger to electronic devices and medical implants. These NdFeB products produce a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation passes through tissues and housings. Special caution must be taken by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MPL 25x10x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	27.90 km/h (7.75 m/s)	0.17 J
30 mm	47.38 km/h (13.16 m/s)	0.49 J
50 mm	61.15 km/h (16.99 m/s)	0.81 J
100 mm	86.48 km/h (24.02 m/s)	1.62 J

Neodymium magnets are delicate – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can cause material chips or dangerous crushing to skin. Hold the magnet firmly during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when working with large magnets.

Table 9: Anti-corrosion coating durability
MPL 25x10x3 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MPL 25x10x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 928 Mx	59.3 µWb
P_c Coefficient	0.25	Low (Flat)

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

Table 11: Physics of underwater searching
MPL 25x10x3 / N38

Environment	Effective steel pull	Effect
Air (land)	4.14 kg	Standard
Water (riverbed)	4.74 kg (+0.60 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Caution: On a vertical wall, the magnet retains merely ~20% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Heat tolerance

*For N38 material, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.25

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

Technical specification and ecology

Chemical composition

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

Ecology and recycling (GPSR)

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: 020387-2026

Measurement Calculator

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Kilograms (kg)

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This product is an extremely strong magnet in the shape of a plate made of NdFeB material, which, with dimensions of 25x10x3 mm and a weight of 5.63 g, guarantees premium class connection. This rectangular block with a force of 40.56 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 4.14 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 25x10x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 25x10x3 / 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. 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 25x10x3 / 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. In practice, this means that this magnet has the greatest attraction force on its main planes (25x10 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: 25 mm (length), 10 mm (width), and 3 mm (thickness). The key parameter here is the holding force amounting to approximately 4.14 kg (force ~40.56 N), which, with such a compact shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Benefits

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

Their strength is durable, and after approximately ten years it decreases only by ~1% (theoretically),
They feature excellent resistance to magnetic field loss when exposed to external magnetic sources,
In other words, due to the smooth finish of silver, the element becomes visually attractive,
Neodymium magnets create maximum magnetic induction on a small area, which increases force concentration,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Thanks to flexibility in constructing and the ability to modify to complex applications,
Universal use in innovative solutions – they serve a role in mass storage devices, brushless drives, advanced medical instruments, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in compact constructions

Limitations

Cons of neodymium magnets and proposals for their use:

To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing threads and complicated forms in magnets, we propose using cover - magnetic mount.
Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these magnets are able to disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The load parameter shown represents the peak performance, recorded under laboratory conditions, namely:

using a plate made of high-permeability steel, serving as a ideal flux conductor
possessing a massiveness of minimum 10 mm to avoid saturation
characterized by lack of roughness
under conditions of no distance (surface-to-surface)
during detachment in a direction vertical to the mounting surface
at standard ambient temperature

Practical aspects of lifting capacity – factors

In practice, the real power results from several key aspects, presented from crucial:

Clearance – the presence of any layer (rust, tape, air) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Pull-off angle – 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.
Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Metal type – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
Surface finish – ideal contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
Temperature – temperature increase causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

H&S for magnets

Bodily injuries

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

Choking Hazard

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

Immense force

Use magnets with awareness. Their huge power can shock even professionals. Stay alert and do not underestimate their power.

Do not drill into magnets

Fire warning: Rare earth powder is highly flammable. Do not process magnets without safety gear as this may cause fire.

Precision electronics

GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can ruin the sensors in your phone.

Safe distance

Powerful magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Do not overheat magnets

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

Fragile material

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Danger to pacemakers

Patients with a heart stimulator should maintain an safe separation from magnets. The magnetic field can disrupt the functioning of the life-saving device.

Warning for allergy sufferers

Medical facts indicate that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact and choose coated magnets.

Warning! Want to know more? Check our post: Why are neodymium magnets dangerous?

MPL 25x10x3 / N38 - lamellar magnet

Product card - MPL 25x10x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - report

Table 1: Static force (force vs gap) - characteristics MPL 25x10x3 / N38

Table 2: Sliding hold (wall) MPL 25x10x3 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 25x10x3 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MPL 25x10x3 / N38

Table 5: Working in heat (stability) - thermal limit MPL 25x10x3 / N38

Table 6: Two magnets (repulsion) - field range MPL 25x10x3 / N38

Table 7: Protective zones (implants) - warnings MPL 25x10x3 / N38

Table 8: Dynamics (cracking risk) - collision effects MPL 25x10x3 / N38

Table 9: Anti-corrosion coating durability MPL 25x10x3 / N38

Table 10: Construction data (Flux) MPL 25x10x3 / N38

Table 11: Physics of underwater searching MPL 25x10x3 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

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Pros as well as cons of Nd2Fe14B magnets.

Benefits

Limitations

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Practical aspects of lifting capacity – factors

H&S for magnets

Bodily injuries

Choking Hazard

Immense force

Do not drill into magnets

Precision electronics

Safe distance

Do not overheat magnets

Fragile material

Danger to pacemakers

Warning for allergy sufferers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MPL 25x10x3 / N38

Table 2: Sliding hold (wall)
MPL 25x10x3 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 25x10x3 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 25x10x3 / N38

Table 5: Working in heat (stability) - thermal limit
MPL 25x10x3 / N38

Table 6: Two magnets (repulsion) - field range
MPL 25x10x3 / N38

Table 7: Protective zones (implants) - warnings
MPL 25x10x3 / N38

Table 8: Dynamics (cracking risk) - collision effects
MPL 25x10x3 / N38

Table 9: Anti-corrosion coating durability
MPL 25x10x3 / N38

Table 10: Construction data (Flux)
MPL 25x10x3 / N38

Table 11: Physics of underwater searching
MPL 25x10x3 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.