Product available Ships tomorrow

MPL 25x10x5 / 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 020135

GTIN/EAN: 5906301811411

5.00

length

25 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

9.38 g

Magnetization Direction

↑ axial

Load capacity

7.49 kg / 73.45 N

Magnetic Induction

337.05 mT / 3371 Gs

Coating

[NiCuNi] Nickel

technical specifications »

4.66 ZŁ with VAT / pcs + price for transport

3.79 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

3.79 ZŁ

4.66 ZŁ

price from 200 pcs

3.56 ZŁ

4.38 ZŁ

price from 700 pcs

3.34 ZŁ

4.10 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Call us +48 22 499 98 98 or send us a note via request form the contact page.
Lifting power and form of neodymium magnets can be estimated with our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical of the product - MPL 25x10x5 / N38 - lamellar magnet

Specification / characteristics - MPL 25x10x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020135
GTIN/EAN	5906301811411
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	5 mm [±0,1 mm]
Weight	9.38 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.49 kg / 73.45 N
Magnetic Induction ~ ?	337.05 mT / 3371 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 25x10x5 / 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 simulation of the magnet - data

The following information constitute the result of a mathematical analysis. Values are based on algorithms for the class Nd₂Fe₁₄B. Real-world conditions may differ. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (force vs gap) - power drop
MPL 25x10x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3369 Gs 336.9 mT	7.49 kg / 16.51 lbs 7490.0 g / 73.5 N	medium risk
1 mm	2932 Gs 293.2 mT	5.67 kg / 12.51 lbs 5673.2 g / 55.7 N	medium risk
2 mm	2479 Gs 247.9 mT	4.06 kg / 8.94 lbs 4056.9 g / 39.8 N	medium risk
3 mm	2065 Gs 206.5 mT	2.81 kg / 6.21 lbs 2814.7 g / 27.6 N	medium risk
5 mm	1419 Gs 141.9 mT	1.33 kg / 2.93 lbs 1328.6 g / 13.0 N	weak grip
10 mm	603 Gs 60.3 mT	0.24 kg / 0.53 lbs 240.3 g / 2.4 N	weak grip
15 mm	296 Gs 29.6 mT	0.06 kg / 0.13 lbs 57.8 g / 0.6 N	weak grip
20 mm	162 Gs 16.2 mT	0.02 kg / 0.04 lbs 17.4 g / 0.2 N	weak grip
30 mm	62 Gs 6.2 mT	0.00 kg / 0.01 lbs 2.5 g / 0.0 N	weak grip
50 mm	16 Gs 1.6 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	weak grip

Pulling power decreases sharply with every mm of distance. Remember that even a very thin break (e.g., dirt, varnish, veneer) noticeably weakens the grip. Neodymiums work strongest during direct contact; air break kills the force. Analyze how rapidly the load capacity fall, when the magnet does not adhere tightly to the metal substrate. When planning the assembly, eliminate redundant distances.

Table 2: Sliding force (vertical surface)
MPL 25x10x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.50 kg / 3.30 lbs 1498.0 g / 14.7 N
1 mm	Stal (~0.2)	1.13 kg / 2.50 lbs 1134.0 g / 11.1 N
2 mm	Stal (~0.2)	0.81 kg / 1.79 lbs 812.0 g / 8.0 N
3 mm	Stal (~0.2)	0.56 kg / 1.24 lbs 562.0 g / 5.5 N
5 mm	Stal (~0.2)	0.27 kg / 0.59 lbs 266.0 g / 2.6 N
10 mm	Stal (~0.2)	0.05 kg / 0.11 lbs 48.0 g / 0.5 N
15 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 12.0 g / 0.1 N
20 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The table below defines the approximate holding capacity sufficient to start the sliding of the magnet down on a upright steel wall (assuming typical friction coefficient). The holding force is relative to the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 25x10x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.25 kg / 4.95 lbs 2247.0 g / 22.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.50 kg / 3.30 lbs 1498.0 g / 14.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.75 kg / 1.65 lbs 749.0 g / 7.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.75 kg / 8.26 lbs 3745.0 g / 36.7 N

When mounting a element on a vertical wall (e.g., a fridge), it will only hold only about 1/5 of its nominal power. Gravitational force and a low friction coefficient cause that magnets slip easier than they pull off. Designing a wall mount? Consider that the shear force is much weaker than the maximum static pull force. On a painted metal, the holder will slide down under a noticeably lighter weight. Application of an anti-slip pad can effectively raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MPL 25x10x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.75 kg / 1.65 lbs 749.0 g / 7.3 N
1 mm	25%	1.87 kg / 4.13 lbs 1872.5 g / 18.4 N
2 mm	50%	3.75 kg / 8.26 lbs 3745.0 g / 36.7 N
3 mm	75%	5.62 kg / 12.38 lbs 5617.5 g / 55.1 N
5 mm	100%	7.49 kg / 16.51 lbs 7490.0 g / 73.5 N
10 mm	100%	7.49 kg / 16.51 lbs 7490.0 g / 73.5 N
11 mm	100%	7.49 kg / 16.51 lbs 7490.0 g / 73.5 N
12 mm	100%	7.49 kg / 16.51 lbs 7490.0 g / 73.5 N

A too thin steel is not enough to take in the entire magnetic field, which weakens actual performance of the magnet. Should you install a neodymium to a thin surface, the flux will pass right through and the attraction force will be weaker. To utilize the maximum of this magnet's power, you require a sufficiently solid piece of metal. The material oversaturation causes that on thin elements (e.g., car bodies), the product works worse. We recommend selecting the steel cross-section based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MPL 25x10x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.49 kg / 16.51 lbs 7490.0 g / 73.5 N	OK
40 °C	-2.2%	7.33 kg / 16.15 lbs 7325.2 g / 71.9 N	OK
60 °C	-4.4%	7.16 kg / 15.79 lbs 7160.4 g / 70.2 N
80 °C	-6.6%	7.00 kg / 15.42 lbs 6995.7 g / 68.6 N
100 °C	-28.8%	5.33 kg / 11.76 lbs 5332.9 g / 52.3 N

Classic neodymiums change their properties parameters past the thermal threshold. Protect against heat – heat can permanently destroy this product. With every degree above norm, the magnet's capacity temporarily lowers. Do not use this magnet near heat sources higher than its working range. Ignoring the limit will result in irreversible degradation of magnetism.

*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Flat magnets (pancake types) are more susceptible to demagnetization at lower temperatures than taller cylinders. The danger warning in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MPL 25x10x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	17.49 kg / 38.57 lbs 4 785 Gs	2.62 kg / 5.78 lbs 2624 g / 25.7 N	N/A
1 mm	15.37 kg / 33.89 lbs 6 316 Gs	2.31 kg / 5.08 lbs 2306 g / 22.6 N	13.84 kg / 30.50 lbs ~0 Gs
2 mm	13.25 kg / 29.21 lbs 5 864 Gs	1.99 kg / 4.38 lbs 1987 g / 19.5 N	11.92 kg / 26.29 lbs ~0 Gs
3 mm	11.26 kg / 24.83 lbs 5 407 Gs	1.69 kg / 3.72 lbs 1690 g / 16.6 N	10.14 kg / 22.35 lbs ~0 Gs
5 mm	7.91 kg / 17.44 lbs 4 531 Gs	1.19 kg / 2.62 lbs 1187 g / 11.6 N	7.12 kg / 15.70 lbs ~0 Gs
10 mm	3.10 kg / 6.84 lbs 2 838 Gs	0.47 kg / 1.03 lbs 465 g / 4.6 N	2.79 kg / 6.16 lbs ~0 Gs
20 mm	0.56 kg / 1.24 lbs 1 207 Gs	0.08 kg / 0.19 lbs 84 g / 0.8 N	0.51 kg / 1.11 lbs ~0 Gs
50 mm	0.01 kg / 0.03 lbs 194 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
60 mm	0.01 kg / 0.01 lbs 124 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.01 lbs 84 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 59 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 43 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 32 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 wider radius than a magnet and sheet combination. The connection of two magnets creates a more powerful interaction and a larger range of performance. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the collision energy is huge. The repulsion force is a bit weaker than the attraction, but still significant.
*Flux density between like poles reaches ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
Note: Estimates show sliding force of dual same magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MPL 25x10x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.0 cm
Hearing aid	10 Gs (1.0 mT)	6.0 cm
Mechanical watch	20 Gs (2.0 mT)	5.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Car key	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field is a serious hazard to electronic devices as well as pacemakers. These neodymiums generate a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field passes through tissues and glass. Increased vigilance must be exercised by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MPL 25x10x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.06 km/h (8.07 m/s)	0.31 J
30 mm	49.37 km/h (13.71 m/s)	0.88 J
50 mm	63.73 km/h (17.70 m/s)	1.47 J
100 mm	90.12 km/h (25.03 m/s)	2.94 J

NdFeB products are delicate – a strong collision with metal causes immediate chipping. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can trigger coating fragments or painful pinches to fingers. Be sure to control the product 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. Wear safety glasses when playing with powerful specimens.

Table 9: Surface protection spec
MPL 25x10x5 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MPL 25x10x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	8 245 Mx	82.5 µWb
P_c Coefficient	0.38	Low (Flat)

Flux value passing through the pole surface. Key data when building generators and motors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 25x10x5 / N38

Environment	Effective steel pull	Effect
Air (land)	7.49 kg	Standard
Water (riverbed)	8.58 kg (+1.09 kg buoyancy gain)	+14.5%

Warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Sliding resistance

*Caution: On a vertical surface, the magnet retains only approx. 20-30% of its max power.

2. Plate thickness effect

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

3. Power loss vs temp

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.38

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

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%

Environmental data

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 020135-2026

Quick Unit Converter

Pulling force

Force in kg

Force (N)

Force in lbs

Field Strength

Induction (Gs)

Induction (T)

Simply complete a single box, to let the calculator compute everything else for you.

View also products

Product available Ships tomorrow

MW 5x7 / N38 - cylindrical magnet

0.726 ZŁ brutto / pcs

Product available Ships tomorrow

MW 4x5 / N38 - cylindrical magnet

0.320 ZŁ brutto / pcs

Product available Ships tomorrow

MW 4x6 / N38 - cylindrical magnet

0.381 ZŁ brutto / pcs

Product available Ships tomorrow

SM 18x225 [2xM5] / N42 - magnetic separator

498.15 ZŁ brutto / pcs

Model MPL 25x10x5 / N38 features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. This rectangular block with a force of 73.45 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. To separate the MPL 25x10x5 / 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 25x10x5 / 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. 7.49 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 25x10x5 / N38, it is best to use 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 25x10x5 / N38 model is magnetized axially (dimension 5 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. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

The presented product is a neodymium magnet with precisely defined parameters: 25 mm (length), 10 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 25x10x5 mm and a self-weight of 9.38 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Benefits

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

They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
They do not lose their magnetic properties even under close interference source,
The use of an refined coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Neodymium magnets ensure maximum magnetic induction on a their surface, which ensures high operational effectiveness,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Thanks to freedom in constructing and the capacity to customize to unusual requirements,
Fundamental importance in future technologies – they find application in HDD drives, electric drive systems, advanced medical instruments, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in small systems

Limitations

Disadvantages of NdFeB magnets:

At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets decrease their power 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
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
We recommend cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated shapes.
Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these products can 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

Best holding force of the magnet in ideal parameters – what it depends on?

The specified lifting capacity refers to the limit force, recorded under laboratory conditions, meaning:

with the application of a sheet made of low-carbon steel, ensuring full magnetic saturation
with a cross-section of at least 10 mm
with an ideally smooth contact surface
under conditions of no distance (metal-to-metal)
for force acting at a right angle (pull-off, not shear)
in neutral thermal conditions

Practical aspects of lifting capacity – factors

Bear in mind that the magnet holding may be lower subject to elements below, starting with the most relevant:

Distance – the presence of any layer (rust, tape, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material composition – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
Surface finish – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
Heat – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity was assessed by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Warnings

Risk of cracking

Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Hand protection

Watch your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Dust is flammable

Powder generated during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

Threat to navigation

A strong magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Keep magnets near a smartphone to avoid damaging the sensors.

Sensitization to coating

It is widely known that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from direct skin contact and choose versions in plastic housing.

Thermal limits

Keep cool. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Safe distance

Very strong magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.

Product not for children

Adult use only. Small elements can be swallowed, causing serious injuries. Store away from kids and pets.

Safe operation

Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.

Life threat

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

Security! Details about risks in the article: Safety of working with magnets.

MPL 25x10x5 / N38 - lamellar magnet

Technical of the product - MPL 25x10x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - data

Table 1: Static force (force vs gap) - power drop MPL 25x10x5 / N38

Table 2: Sliding force (vertical surface) MPL 25x10x5 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 25x10x5 / N38

Table 4: Steel thickness (substrate influence) - power losses MPL 25x10x5 / N38

Table 5: Working in heat (material behavior) - thermal limit MPL 25x10x5 / N38

Table 6: Two magnets (repulsion) - forces in the system MPL 25x10x5 / N38

Table 7: Protective zones (electronics) - warnings MPL 25x10x5 / N38

Table 8: Collisions (kinetic energy) - warning MPL 25x10x5 / N38

Table 9: Surface protection spec MPL 25x10x5 / N38

Table 10: Construction data (Flux) MPL 25x10x5 / N38

Table 11: Underwater work (magnet fishing) MPL 25x10x5 / N38

1. Sliding resistance

2. Plate thickness effect

3. Power loss vs temp

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

Material specification

Environmental data

Pulling force

Field Strength

View also products

MW 5x7 / N38 - cylindrical magnet

MW 4x5 / N38 - cylindrical magnet

MW 4x6 / N38 - cylindrical magnet

SM 18x225 [2xM5] / N42 - magnetic separator

Strengths and weaknesses of Nd2Fe14B magnets.

Benefits

Limitations

Holding force characteristics

Best holding force of the magnet in ideal parameters – what it depends on?

Practical aspects of lifting capacity – factors

Warnings

Risk of cracking

Hand protection

Dust is flammable

Threat to navigation

Sensitization to coating

Thermal limits

Safe distance

Product not for children

Safe operation

Life threat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MPL 25x10x5 / N38

Table 2: Sliding force (vertical surface)
MPL 25x10x5 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 25x10x5 / N38

Table 4: Steel thickness (substrate influence) - power losses
MPL 25x10x5 / N38

Table 5: Working in heat (material behavior) - thermal limit
MPL 25x10x5 / N38

Table 6: Two magnets (repulsion) - forces in the system
MPL 25x10x5 / N38

Table 7: Protective zones (electronics) - warnings
MPL 25x10x5 / N38

Table 8: Collisions (kinetic energy) - warning
MPL 25x10x5 / N38

Table 9: Surface protection spec
MPL 25x10x5 / N38

Table 10: Construction data (Flux)
MPL 25x10x5 / N38

Table 11: Underwater work (magnet fishing)
MPL 25x10x5 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.