Product on order Ships in 3-5 days

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

see technical specifications »

3.57 ZŁ with VAT / pcs + price for transport

2.90 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.90 ZŁ

3.57 ZŁ

price from 250 pcs

2.73 ZŁ

3.35 ZŁ

price from 900 pcs

2.55 ZŁ

3.14 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Give us a call +48 22 499 98 98 alternatively let us know by means of inquiry form through our site.
Weight and form of magnets can be estimated with our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical parameters of the product - 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 simulation of the product - report

These information constitute the direct effect of a engineering simulation. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Treat these calculations as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - interaction chart
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

Pulling power decreases sharply with every mm of distance. Note that even the smallest gap (e.g., contamination, varnish, veneer) strongly reduces the pull force. Neodymiums operate optimally during direct contact; gap weakens the power. See how rapidly the pull force fall, when the product does not adhere flatly to the metal substrate. When designing the arrangement, discard additional spacers.

Table 2: Vertical force (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

The following data calculates the approximate force needed to start the shifting of the magnet vertically along a upright steel wall (considering typical friction coefficient). This value is a function of the separation distance between the magnet and the metal.

Table 3: Vertical assembly (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 hanging a element on a upright plane (e.g., a fridge), it will only hold just about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient influence the fact that holders slip easier than they detach. Want to create a vertical fastening? Remember that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slip down under a noticeably lighter weight. Using a rubber pad can significantly increase the grip.

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 too thin steel is unable to take in the entire magnetic field, which weakens actual performance of the holder. If you install a neodymium to a too thin substrate, the flux will pass right through and the attraction force will be weaker. To squeeze the maximum of this magnet's power, you need a suitably thick element of metal. The saturation effect causes that on delicate walls (e.g., thin profiles), the holder shows lower pull force. We suggest choosing the steel cross-section based on the following data.

Table 5: Working in heat (stability) - resistance threshold
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

Standard neodymium magnets change their properties parameters after exceeding the maximum temperature. Watch out for overheating – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's capacity momentarily drops. Do not use this magnet in hot environments exceeding its safe range. Ignoring the limit will cause irreversible degradation of magnetism.

*Important note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (pancake types) risk losing magnetic properties sooner than taller cylinders. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MPL 25x10x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (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 magnet and steel setup. The setup of magnet-to-magnet creates a more powerful interaction and a wider radius of action. Planning to create a powerful holder? Use a pair of magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the impact force is extreme. The levitation is a bit weaker than the attraction, but still large.
*Flux density between like poles is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
* Figures apply to sliding force of two identical neodymium magnets (friction ~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
Phone / Smartphone	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

Powerful magnet radiation poses a large risk to electronics and pacemakers. These magnets generate a flux that destroys function of digital equipment. Notice: the invisible magnetic field acts through matter and housings. Exceptional care must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, car keys, speakers, and displays. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - 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 risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can destroy the magnet or dangerous crushing to skin. Hold the magnet firmly during installation so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when working with powerful specimens.

Table 9: Corrosion resistance
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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

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

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

Total magnetic flux passing through the pole surface. Key data in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Hydrostatics and buoyancy
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. Sliding resistance

*Warning: On a vertical surface, the magnet holds just approx. 20-30% of its max power.

2. Plate thickness effect

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

3. Temperature resistance

*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

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

Engineering data and GPSR

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%

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

Force (pull)

Force (N)

lbs

Field Strength

Gauss (Gs)

Put your value in a single slot to receive results for all other units right away.

Other proposals

Product on order Ships in 3-5 days

SMZR 25x250 / N52 - magnetic separator with handle

676.50 ZŁ brutto / pcs

Product on order Ships in 3-5 days

SM 32x275 [2xM8] / N52 - magnetic separator

1020.90 ZŁ brutto / pcs

Product on order Ships in 3-5 days

MPL 17x17x3 / N38 - lamellar magnet

4.71 ZŁ brutto / pcs

Product on order Ships in 3-5 days

SMZR 32x225 / N52 - magnetic separator with handle

725.70 ZŁ brutto / pcs

Model MPL 25x10x3 / N38 features a flat shape and industrial pulling force, making it a perfect solution for building separators and machines. This magnetic 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.

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 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 fasteners under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

For mounting flat magnets MPL 25x10x3 / N38, we recommend utilizing two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (25x10 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 25x10x3 mm, which, at a weight of 5.63 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 25x10x3 mm and a self-weight of 5.63 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

They do not lose power, even over approximately 10 years – the decrease in power is only ~1% (based on measurements),
Neodymium magnets are extremely resistant to magnetic field loss caused by magnetic disturbances,
By applying a shiny layer of silver, the element has an professional look,
Magnets exhibit extremely high magnetic induction on the surface,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Thanks to modularity in designing and the capacity to customize to specific needs,
Key role in future technologies – they serve a role in computer drives, motor assemblies, diagnostic systems, and technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Characteristics of disadvantages of neodymium magnets and proposals for their use:

At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as 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 durability even at temperatures up to 230°C
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
We recommend a housing - magnetic mount, due to difficulties in producing nuts inside the magnet and complex shapes.
Health risk to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these devices can disrupt the diagnostic process medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

Maximum holding power of the magnet – what affects it?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:

on a base made of structural steel, optimally conducting the magnetic field
possessing a massiveness of minimum 10 mm to ensure full flux closure
characterized by smoothness
under conditions of gap-free contact (metal-to-metal)
under vertical force direction (90-degree angle)
at standard ambient temperature

Practical aspects of lifting capacity – factors

Effective lifting capacity is affected by working environment parameters, such as (from priority):

Gap (betwixt the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, corrosion or dirt).
Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Plate thickness – too thin plate does not close the flux, causing part of the power to be lost into the air.
Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
Plate texture – smooth surfaces ensure maximum contact, which increases force. Rough surfaces weaken the grip.
Temperature influence – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.

H&S for magnets

Keep away from electronics

GPS units and mobile phones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Beware of splinters

Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Clashing of two magnets leads to them cracking into shards.

Electronic hazard

Equipment safety: Strong magnets can damage data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Do not drill into magnets

Machining of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Bodily injuries

Protect your hands. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!

Demagnetization risk

Avoid heat. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).

Warning for heart patients

Individuals with a ICD should maintain an safe separation from magnets. The magnetic field can stop the operation of the life-saving device.

Metal Allergy

Medical facts indicate that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, refrain from touching magnets with bare hands and choose coated magnets.

Handling rules

Exercise caution. Neodymium magnets act from a long distance and snap with huge force, often quicker than you can react.

No play value

Neodymium magnets are not toys. Swallowing multiple magnets can lead to them attracting across intestines, which constitutes a critical condition and requires immediate surgery.

Danger! Looking for details? Check our post: Why are neodymium magnets dangerous?

MPL 25x10x3 / N38 - lamellar magnet

Technical parameters of the product - MPL 25x10x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the product - report

Table 1: Static force (pull vs gap) - interaction chart MPL 25x10x3 / N38

Table 2: Vertical force (wall) MPL 25x10x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 25x10x3 / N38

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

Table 5: Working in heat (stability) - resistance threshold MPL 25x10x3 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MPL 25x10x3 / N38

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

Table 8: Dynamics (kinetic energy) - collision effects MPL 25x10x3 / N38

Table 9: Corrosion resistance MPL 25x10x3 / N38

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

Table 11: Hydrostatics and buoyancy MPL 25x10x3 / N38

1. Sliding resistance

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Field Strength

Other proposals

SMZR 25x250 / N52 - magnetic separator with handle

SM 32x275 [2xM8] / N52 - magnetic separator

MPL 17x17x3 / N38 - lamellar magnet

SMZR 32x225 / N52 - magnetic separator with handle

Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Limitations

Lifting parameters

Maximum holding power of the magnet – what affects it?

Practical aspects of lifting capacity – factors

H&S for magnets

Keep away from electronics

Beware of splinters

Electronic hazard

Do not drill into magnets

Bodily injuries

Demagnetization risk

Warning for heart patients

Metal Allergy

Handling rules

No play value

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - interaction chart
MPL 25x10x3 / N38

Table 2: Vertical force (wall)
MPL 25x10x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 25x10x3 / N38

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

Table 5: Working in heat (stability) - resistance threshold
MPL 25x10x3 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MPL 25x10x3 / N38

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

Table 8: Dynamics (kinetic energy) - collision effects
MPL 25x10x3 / N38

Table 9: Corrosion resistance
MPL 25x10x3 / N38

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

Table 11: Hydrostatics and buoyancy
MPL 25x10x3 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.