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MPL 25x25x10 / 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 020137

GTIN/EAN: 5906301811435

5.00

length

25 mm [±0,1 mm]

Width

25 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

46.88 g

Magnetization Direction

↑ axial

Load capacity

19.39 kg / 190.25 N

Magnetic Induction

361.04 mT / 3610 Gs

Coating

[NiCuNi] Nickel

product parameters »

20.29 ZŁ with VAT / pcs + price for transport

16.50 ZŁ net + 23% VAT / pcs

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Technical - MPL 25x25x10 / N38 - lamellar magnet

Specification / characteristics - MPL 25x25x10 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020137
GTIN/EAN	5906301811435
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	25 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	46.88 g
Magnetization Direction	↑ axial
Load capacity ~ ?	19.39 kg / 190.25 N
Magnetic Induction ~ ?	361.04 mT / 3610 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 25x25x10 / N38 - lamellar magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Physical analysis of the product - data

These data constitute the result of a physical simulation. Results rely on models for the class Nd₂Fe₁₄B. Operational performance may differ from theoretical values. Treat these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs gap) - power drop
MPL 25x25x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3610 Gs 361.0 mT	19.39 kg / 42.75 lbs 19390.0 g / 190.2 N	crushing
1 mm	3392 Gs 339.2 mT	17.12 kg / 37.74 lbs 17117.7 g / 167.9 N	crushing
2 mm	3156 Gs 315.6 mT	14.82 kg / 32.68 lbs 14822.5 g / 145.4 N	crushing
3 mm	2913 Gs 291.3 mT	12.63 kg / 27.85 lbs 12631.8 g / 123.9 N	crushing
5 mm	2436 Gs 243.6 mT	8.83 kg / 19.46 lbs 8827.9 g / 86.6 N	medium risk
10 mm	1464 Gs 146.4 mT	3.19 kg / 7.04 lbs 3191.5 g / 31.3 N	medium risk
15 mm	872 Gs 87.2 mT	1.13 kg / 2.49 lbs 1131.5 g / 11.1 N	safe
20 mm	538 Gs 53.8 mT	0.43 kg / 0.95 lbs 430.4 g / 4.2 N	safe
30 mm	234 Gs 23.4 mT	0.08 kg / 0.18 lbs 81.8 g / 0.8 N	safe
50 mm	68 Gs 6.8 mT	0.01 kg / 0.02 lbs 6.9 g / 0.1 N	safe

Magnetic force drops sharply with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., dirt, varnish, rust) significantly weakens the grip. Magnetic products work most effectively in perfect adhesion; air break weakens the force. Analyze how rapidly the pull force plummet, when the product does not adhere directly to the metal substrate. When calculating the mounting, avoid redundant distances.

Table 2: Sliding force (vertical surface)
MPL 25x25x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	3.88 kg / 8.55 lbs 3878.0 g / 38.0 N
1 mm	Stal (~0.2)	3.42 kg / 7.55 lbs 3424.0 g / 33.6 N
2 mm	Stal (~0.2)	2.96 kg / 6.53 lbs 2964.0 g / 29.1 N
3 mm	Stal (~0.2)	2.53 kg / 5.57 lbs 2526.0 g / 24.8 N
5 mm	Stal (~0.2)	1.77 kg / 3.89 lbs 1766.0 g / 17.3 N
10 mm	Stal (~0.2)	0.64 kg / 1.41 lbs 638.0 g / 6.3 N
15 mm	Stal (~0.2)	0.23 kg / 0.50 lbs 226.0 g / 2.2 N
20 mm	Stal (~0.2)	0.09 kg / 0.19 lbs 86.0 g / 0.8 N
30 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 16.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N

The following data indicates the theoretical holding capacity necessary to cause the sliding of the magnet down along a upright steel wall (considering standard friction). This parameter is a function of the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 25x25x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	5.82 kg / 12.82 lbs 5817.0 g / 57.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	3.88 kg / 8.55 lbs 3878.0 g / 38.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.94 kg / 4.27 lbs 1939.0 g / 19.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	9.70 kg / 21.37 lbs 9695.0 g / 95.1 N

When mounting a holder on a upright surface (e.g., a car body), it will maintain only about 20%-30% of its nominal power. Gravitational force and a low friction coefficient influence the fact that magnets slip faster than they pull off. Want to create a vertical fastening? Consider that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the magnet will slip down under a significantly smaller load. Application of an anti-slip layer can drastically increase the grip.

Table 4: Material efficiency (saturation) - power losses
MPL 25x25x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.97 kg / 2.14 lbs 969.5 g / 9.5 N
1 mm	13%	2.42 kg / 5.34 lbs 2423.8 g / 23.8 N
2 mm	25%	4.85 kg / 10.69 lbs 4847.5 g / 47.6 N
3 mm	38%	7.27 kg / 16.03 lbs 7271.3 g / 71.3 N
5 mm	63%	12.12 kg / 26.72 lbs 12118.8 g / 118.9 N
10 mm	100%	19.39 kg / 42.75 lbs 19390.0 g / 190.2 N
11 mm	100%	19.39 kg / 42.75 lbs 19390.0 g / 190.2 N
12 mm	100%	19.39 kg / 42.75 lbs 19390.0 g / 190.2 N

A too thin steel is unable to take in the full magnetic flux, which wastes potential of the magnet. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's potential, you require a sufficiently solid piece of steel. The material oversaturation means that on delicate walls (e.g., appliance housings), the product works worse. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MPL 25x25x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	19.39 kg / 42.75 lbs 19390.0 g / 190.2 N	OK
40 °C	-2.2%	18.96 kg / 41.81 lbs 18963.4 g / 186.0 N	OK
60 °C	-4.4%	18.54 kg / 40.87 lbs 18536.8 g / 181.8 N
80 °C	-6.6%	18.11 kg / 39.93 lbs 18110.3 g / 177.7 N
100 °C	-28.8%	13.81 kg / 30.44 lbs 13805.7 g / 135.4 N

Standard neodymium magnets lose power above the temperature limit. Protect against heat – high temperature can irreversibly demagnetize this magnet. As the temperature rises, the neodymium's force momentarily decreases. Refrain from using this product close to heaters higher than its working range. Exceeding the critical threshold will lead to destruction of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field collision
MPL 25x25x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	50.20 kg / 110.68 lbs 5 073 Gs	7.53 kg / 16.60 lbs 7531 g / 73.9 N	N/A
1 mm	47.31 kg / 104.30 lbs 7 008 Gs	7.10 kg / 15.65 lbs 7097 g / 69.6 N	42.58 kg / 93.87 lbs ~0 Gs
2 mm	44.32 kg / 97.71 lbs 6 783 Gs	6.65 kg / 14.66 lbs 6648 g / 65.2 N	39.89 kg / 87.94 lbs ~0 Gs
3 mm	41.33 kg / 91.12 lbs 6 550 Gs	6.20 kg / 13.67 lbs 6200 g / 60.8 N	37.20 kg / 82.01 lbs ~0 Gs
5 mm	35.49 kg / 78.25 lbs 6 070 Gs	5.32 kg / 11.74 lbs 5324 g / 52.2 N	31.94 kg / 70.43 lbs ~0 Gs
10 mm	22.86 kg / 50.39 lbs 4 871 Gs	3.43 kg / 7.56 lbs 3429 g / 33.6 N	20.57 kg / 45.35 lbs ~0 Gs
20 mm	8.26 kg / 18.22 lbs 2 929 Gs	1.24 kg / 2.73 lbs 1240 g / 12.2 N	7.44 kg / 16.40 lbs ~0 Gs
50 mm	0.46 kg / 1.02 lbs 695 Gs	0.07 kg / 0.15 lbs 70 g / 0.7 N	0.42 kg / 0.92 lbs ~0 Gs
60 mm	0.21 kg / 0.47 lbs 469 Gs	0.03 kg / 0.07 lbs 32 g / 0.3 N	0.19 kg / 0.42 lbs ~0 Gs
70 mm	0.10 kg / 0.23 lbs 329 Gs	0.02 kg / 0.03 lbs 16 g / 0.2 N	0.09 kg / 0.21 lbs ~0 Gs
80 mm	0.05 kg / 0.12 lbs 239 Gs	0.01 kg / 0.02 lbs 8 g / 0.1 N	0.05 kg / 0.11 lbs ~0 Gs
90 mm	0.03 kg / 0.07 lbs 178 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.06 lbs ~0 Gs
100 mm	0.02 kg / 0.04 lbs 136 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal setup. Such a system of magnet-to-magnet generates a stronger field and a further horizon of performance. Want to build a solid fastener? Apply two magnets instead of one magnet and a striker plate. Remember that when attracting two neodymiums, the collision energy is huge. The levitation is marginally weaker than the connection force, but still impressive.
*Flux density between like poles reaches ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Attention: Estimates show shear force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - precautionary measures
MPL 25x25x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	13.0 cm
Hearing aid	10 Gs (1.0 mT)	10.5 cm
Mechanical watch	20 Gs (2.0 mT)	8.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.5 cm
Remote	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

A strong magnetic field is a real danger to IT equipment as well as pacemakers. These NdFeB products generate a field that destroys function of sensitive medical devices. Remember: the unseen radiation penetrates the body and plastic. Increased vigilance must be exercised by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MPL 25x25x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.52 km/h (6.26 m/s)	0.92 J
30 mm	35.62 km/h (9.89 m/s)	2.29 J
50 mm	45.87 km/h (12.74 m/s)	3.81 J
100 mm	64.86 km/h (18.02 m/s)	7.61 J

Magnetic elements are very brittle – a collision with steel can result in shattering. Watch the impact speed – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Corrosion resistance
MPL 25x25x10 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (P_c)
MPL 25x25x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	23 497 Mx	235.0 µWb
P_c Coefficient	0.46	Low (Flat)

Flux value emitted by the magnet pole. Essential parameter when building generators as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 25x25x10 / N38

Environment	Effective steel pull	Effect
Air (land)	19.39 kg	Standard
Water (riverbed)	22.20 kg (+2.81 kg buoyancy gain)	+14.5%

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

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. Wall mount (shear)

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

2. Steel thickness impact

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

3. Power loss vs temp

*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) = 0.46

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

Technical and environmental data

Chemical composition

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

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: 020137-2026

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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 25x25x10 mm and a weight of 46.88 g, guarantees premium class connection. As a magnetic bar with high power (approx. 19.39 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

The key to success is 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 25x25x10 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 25x25x10 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. They work great as fasteners under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 25x25x10 / N38, we recommend utilizing strong epoxy glues (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. 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 25x25x10 mm, which, at a weight of 46.88 g, makes it an element with high energy density. It is a magnetic block with dimensions 25x25x10 mm and a self-weight of 46.88 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of neodymium magnets.

Pros

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

They have constant strength, and over nearly 10 years their performance decreases symbolically – ~1% (according to theory),
They show high resistance to demagnetization induced by external disturbances,
Thanks to the shiny finish, the plating of Ni-Cu-Ni, gold-plated, or silver gives an clean appearance,
The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
In view of the option of free forming and customization to individualized solutions, magnetic components can be created in a broad palette of forms and dimensions, which makes them more universal,
Significant place in high-tech industry – they are utilized in hard drives, drive modules, precision medical tools, and modern systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Limitations

What to avoid - cons of neodymium magnets: tips and applications.

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
Limited possibility of creating nuts in the magnet and complicated shapes - recommended is casing - magnetic holder.
Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. Additionally, tiny parts of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Maximum magnetic pulling force – what affects it?

Breakaway force was defined for ideal contact conditions, assuming:

using a sheet made of mild steel, acting as a circuit closing element
with a cross-section minimum 10 mm
characterized by lack of roughness
with direct contact (no impurities)
for force applied at a right angle (in the magnet axis)
at temperature room level

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity is influenced by working environment parameters, mainly (from priority):

Distance (betwixt the magnet and the metal), because even a microscopic clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
Base massiveness – too thin sheet does not accept the full field, causing part of the power to be lost into the air.
Steel type – mild steel gives the best results. Alloy steels lower magnetic permeability and lifting capacity.
Smoothness – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Additionally, even a small distance between the magnet and the plate reduces the holding force.

H&S for magnets

Medical implants

Individuals with a heart stimulator have to maintain an safe separation from magnets. The magnetic field can interfere with the operation of the implant.

Dust explosion hazard

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Protective goggles

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets will cause them breaking into shards.

Crushing risk

Big blocks can smash fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.

Choking Hazard

Only for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep out of reach of children and animals.

Safe distance

Very strong magnetic fields can corrupt files on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Threat to navigation

Remember: rare earth magnets generate a field that confuses sensitive sensors. Keep a separation from your mobile, tablet, and navigation systems.

Permanent damage

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

Immense force

Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Skin irritation risks

It is widely known that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, avoid touching magnets with bare hands and choose versions in plastic housing.

Attention! Want to know more? Read our article: Are neodymium magnets dangerous?

MPL 25x25x10 / N38 - lamellar magnet

Technical - MPL 25x25x10 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - data

Table 1: Static pull force (pull vs gap) - power drop MPL 25x25x10 / N38

Table 2: Sliding force (vertical surface) MPL 25x25x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 25x25x10 / N38

Table 4: Material efficiency (saturation) - power losses MPL 25x25x10 / N38

Table 5: Thermal stability (material behavior) - thermal limit MPL 25x25x10 / N38

Table 6: Two magnets (repulsion) - field collision MPL 25x25x10 / N38

Table 7: Protective zones (implants) - precautionary measures MPL 25x25x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects MPL 25x25x10 / N38

Table 9: Corrosion resistance MPL 25x25x10 / N38

Table 10: Construction data (Pc) MPL 25x25x10 / N38

Table 11: Underwater work (magnet fishing) MPL 25x25x10 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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Strengths as well as weaknesses of neodymium magnets.

Pros

Limitations

Pull force analysis

Maximum magnetic pulling force – what affects it?

Impact of factors on magnetic holding capacity in practice

H&S for magnets

Medical implants

Dust explosion hazard

Protective goggles

Crushing risk

Choking Hazard

Safe distance

Threat to navigation

Permanent damage

Immense force

Skin irritation risks

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MPL 25x25x10 / N38

Table 2: Sliding force (vertical surface)
MPL 25x25x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 25x25x10 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 25x25x10 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MPL 25x25x10 / N38

Table 6: Two magnets (repulsion) - field collision
MPL 25x25x10 / N38

Table 7: Protective zones (implants) - precautionary measures
MPL 25x25x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MPL 25x25x10 / N38

Table 9: Corrosion resistance
MPL 25x25x10 / N38

Table 10: Construction data (P_c)
MPL 25x25x10 / N38

Table 11: Underwater work (magnet fishing)
MPL 25x25x10 / N38