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MPL 15x15x5 / 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

lamellar magnet

Catalog no 020120

GTIN/EAN: 5906301811268

5.00

Load capacity 5.87 kg / 57.62 N Magnetic Induction 318.00 mT / 3180 Gs

length: 15 mm [±0,1 mm]
Width: 15 mm [±0,1 mm]
Height: 5 mm [±0,1 mm]
Weight: 8.44 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view technical specifications »

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Frequently asked questions

How much will a block magnet really hold?

The catalogue force is measured in full contact with smooth steel at least 10 mm thick, pulled perpendicular, at about 20 °C. On 1 mm sheet about 50% of that value remains, on 0.5 mm about 25%. Mounted on a vertical wall the realistic figure is 20–30%, because the load is then in shear rather than in tension.

What is the maximum working temperature?

Standard N-series grades up to 80 °C, and N50, N52 and N54 up to 60 °C. Above the maximum working temperature the loss stops being reversible. The Curie temperature, at which magnetic properties are lost completely, is about 310 °C.

What safety factor should I allow?

At least twice the mass of the item, and three to five times for vertical mounting. The margin covers sheet thickness, surface condition, any layer of paint or rust, and vibration.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical details - MPL 15x15x5 / N38 - lamellar magnet

Specification / characteristics - MPL 15x15x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020120
GTIN/EAN	5906301811268
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	15 mm [±0,1 mm]
Width	15 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	8.44 g
Magnetization Direction	↑ axial
Load capacity ~ ?	5.87 kg / 57.62 N
Magnetic Induction ~ ?	318.00 mT / 3180 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 15x15x5 / N38 - lamellar magnet

properties	values	units
Remanence Br ?	12.2-12.6	kGs
Remanence Br ?	1220-1260	mT
Coercivity bHc ?	10.8-11.5	kOe
Coercivity bHc ?	860-915	kA/m
Intrinsic coercivity iHc	≥ 12	kOe
Intrinsic coercivity iHc	≥ 955	kA/m
Energy product BHmax ?	36-38	BH max MGOe
Energy product BHmax ?	287-303	BH max KJ/m
Maximum working 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	310	°C
Curie Temperature TF	590	°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 simulation of the assembly - technical parameters

These values are the direct effect of a engineering analysis. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual parameters may differ. Treat these calculations as a supplementary guide for designers.

Table 1: Static pull force (force vs gap) - characteristics
MPL 15x15x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3179 Gs 317.9 mT	5.87 kg / 12.94 lbs 5870.0 g / 57.6 N	strong
1 mm	2873 Gs 287.3 mT	4.79 kg / 10.57 lbs 4794.1 g / 47.0 N	strong
2 mm	2528 Gs 252.8 mT	3.71 kg / 8.18 lbs 3712.5 g / 36.4 N	strong
3 mm	2181 Gs 218.1 mT	2.76 kg / 6.09 lbs 2763.0 g / 27.1 N	strong
5 mm	1565 Gs 156.5 mT	1.42 kg / 3.14 lbs 1422.0 g / 13.9 N	weak grip
10 mm	659 Gs 65.9 mT	0.25 kg / 0.56 lbs 252.1 g / 2.5 N	weak grip
15 mm	307 Gs 30.7 mT	0.05 kg / 0.12 lbs 54.7 g / 0.5 N	weak grip
20 mm	162 Gs 16.2 mT	0.02 kg / 0.03 lbs 15.2 g / 0.1 N	weak grip
30 mm	59 Gs 5.9 mT	0.00 kg / 0.00 lbs 2.0 g / 0.0 N	weak grip
50 mm	15 Gs 1.5 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	weak grip

Magnetic force drops significantly per each millimeter of spacing. Keep in mind that even a microscopic distance (e.g., dirt, paint, rust) noticeably weakens the grip. Neodymiums hold optimally during direct contact; distance nullifies the power. Notice how flashily the parameters fall, when the magnet does not adhere tightly to the metal substrate. When planning the arrangement, discard unnecessary gaps.

Table 2: Slippage force (wall)
MPL 15x15x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.17 kg / 2.59 lbs 1174.0 g / 11.5 N
1 mm	Stal (~0.2)	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
2 mm	Stal (~0.2)	0.74 kg / 1.64 lbs 742.0 g / 7.3 N
3 mm	Stal (~0.2)	0.55 kg / 1.22 lbs 552.0 g / 5.4 N
5 mm	Stal (~0.2)	0.28 kg / 0.63 lbs 284.0 g / 2.8 N
10 mm	Stal (~0.2)	0.05 kg / 0.11 lbs 50.0 g / 0.5 N
15 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 10.0 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 shows the estimated holding capacity required to cause the sliding of the magnet vertically along a upright steel plate (considering standard friction). The holding force is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 15x15x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.76 kg / 3.88 lbs 1761.0 g / 17.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.17 kg / 2.59 lbs 1174.0 g / 11.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.59 kg / 1.29 lbs 587.0 g / 5.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.94 kg / 6.47 lbs 2935.0 g / 28.8 N

When placing a element on a upright surface (e.g., a board), it will only hold just approx. 1/5 of its maximum pull force. Gravitational force as well as a weak degree of grip cause that holders move down easier than they pop off the substrate. Want to create a vertical fastening? Note that the shear force is much weaker than the maximum static pull force. On a smooth steel, the holder will slip down under a significantly smaller weight. Utilizing a rubberized pad can drastically increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MPL 15x15x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.59 kg / 1.29 lbs 587.0 g / 5.8 N
1 mm	25%	1.47 kg / 3.24 lbs 1467.5 g / 14.4 N
2 mm	50%	2.94 kg / 6.47 lbs 2935.0 g / 28.8 N
3 mm	75%	4.40 kg / 9.71 lbs 4402.5 g / 43.2 N
5 mm	100%	5.87 kg / 12.94 lbs 5870.0 g / 57.6 N
10 mm	100%	5.87 kg / 12.94 lbs 5870.0 g / 57.6 N
11 mm	100%	5.87 kg / 12.94 lbs 5870.0 g / 57.6 N
12 mm	100%	5.87 kg / 12.94 lbs 5870.0 g / 57.6 N

A thin metal plate is not enough to absorb the full magnetic flux, which weakens actual performance of the magnet. Should you attach a powerful product to a thin surface, the magnetism will pass right through and the attraction force will be weaker. To utilize 100% of this neodymium's power, you require a sufficiently solid piece of steel. The material oversaturation means that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We recommend selecting the steel dimension according to the table below.

Table 5: Working in heat (stability) - resistance threshold
MPL 15x15x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	5.87 kg / 12.94 lbs 5870.0 g / 57.6 N	OK
40 °C	-2.2%	5.74 kg / 12.66 lbs 5740.9 g / 56.3 N	OK
60 °C	-4.4%	5.61 kg / 12.37 lbs 5611.7 g / 55.1 N
80 °C	-6.6%	5.48 kg / 12.09 lbs 5482.6 g / 53.8 N
100 °C	-28.8%	4.18 kg / 9.21 lbs 4179.4 g / 41.0 N

Standard neodymium magnets irreversibly lose strength past the thermal threshold. Watch out for overheating – high temperature can irreversibly demagnetize this magnet. With increasing heat, the neodymium's power momentarily lowers. Refrain from using this magnet near heat sources higher than its safe range. Exceeding the critical threshold will result in irreversible degradation of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 15x15x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	14.02 kg / 30.90 lbs 4 741 Gs	2.10 kg / 4.64 lbs 2103 g / 20.6 N	N/A
1 mm	12.77 kg / 28.15 lbs 6 068 Gs	1.92 kg / 4.22 lbs 1916 g / 18.8 N	11.49 kg / 25.34 lbs ~0 Gs
2 mm	11.45 kg / 25.24 lbs 5 746 Gs	1.72 kg / 3.79 lbs 1717 g / 16.8 N	10.30 kg / 22.72 lbs ~0 Gs
3 mm	10.13 kg / 22.34 lbs 5 405 Gs	1.52 kg / 3.35 lbs 1520 g / 14.9 N	9.12 kg / 20.10 lbs ~0 Gs
5 mm	7.68 kg / 16.93 lbs 4 706 Gs	1.15 kg / 2.54 lbs 1152 g / 11.3 N	6.91 kg / 15.24 lbs ~0 Gs
10 mm	3.40 kg / 7.49 lbs 3 129 Gs	0.51 kg / 1.12 lbs 509 g / 5.0 N	3.06 kg / 6.74 lbs ~0 Gs
20 mm	0.60 kg / 1.33 lbs 1 318 Gs	0.09 kg / 0.20 lbs 90 g / 0.9 N	0.54 kg / 1.19 lbs ~0 Gs
50 mm	0.01 kg / 0.03 lbs 188 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
60 mm	0.00 kg / 0.01 lbs 118 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 / 0.00 lbs 79 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 55 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 40 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 30 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets attract each other from a wider radius than a magnet and sheet combination. The setup of magnet-to-magnet produces a massive flux and a further horizon of performance. Want to build a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is slightly lower than the attraction, but still large.
*Flux density in repulsion mode drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
Attention: Results demonstrate friction force of two same neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - precautionary measures
MPL 15x15x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.5 cm
Hearing aid	10 Gs (1.0 mT)	6.0 cm
Mechanical watch	20 Gs (2.0 mT)	4.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.5 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

Powerful magnet radiation is a large risk to electronic devices as well as pacemakers. These NdFeB products produce a field that destroys function of digital equipment. Be aware: the invisible magnetic field penetrates the body and plastic. Exceptional care must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MPL 15x15x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.70 km/h (6.86 m/s)	0.20 J
30 mm	25.21 km/h (7.00 m/s)	0.21 J
50 mm	25.22 km/h (7.00 m/s)	0.21 J
100 mm	25.22 km/h (7.01 m/s)	0.21 J

Magnetic elements are delicate – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Striking energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the neodymium. Use safety goggles when handling with large magnets.

Table 9: Surface protection spec
MPL 15x15x5 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Flux)
MPL 15x15x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	7 651 Mx	76.5 µWb
P_c Coefficient	0.40	Low (Flat)

Total magnetic flux emitted by the magnet pole. Essential parameter when building generators and motors. P_c value determines the magnet's operating point.

Table 11: Submerged application
MPL 15x15x5 / N38

Environment	Effective steel pull	Effect
Air (land)	5.87 kg	Standard
Water (riverbed)	6.72 kg (+0.85 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!

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet retains just ~20% of its perpendicular strength.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.40

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: 020120-2026

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Model MPL 15x15x5 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. As a magnetic bar with high power (approx. 5.87 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 15x15x5 / 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 15x15x5 / 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. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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 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. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 15x15x5 mm, which, at a weight of 8.44 g, makes it an element with impressive energy density. The key parameter here is the holding force amounting to approximately 5.87 kg (force ~57.62 N), which, with such a compact shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Advantages

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

Their strength remains stable, and after approximately 10 years it drops only by ~1% (according to research),
Magnets perfectly resist against demagnetization caused by external fields,
The use of an refined finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Neodymium magnets achieve maximum magnetic induction on a contact point, which ensures high operational effectiveness,
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...
Thanks to freedom in designing and the capacity to modify to individual projects,
Huge importance in modern industrial fields – they are utilized in computer drives, motor assemblies, medical devices, also multitasking production systems.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

Disadvantages of NdFeB magnets:

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
Limited possibility of producing nuts in the magnet and complex forms - recommended is a housing - mounting mechanism.
Health risk related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these devices are able to be problematic in diagnostics medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Detachment force of the magnet in optimal conditions – what it depends on?

The specified lifting capacity represents the limit force, measured under ideal test conditions, specifically:

on a base made of mild steel, perfectly concentrating the magnetic flux
with a thickness minimum 10 mm
with a plane perfectly flat
with total lack of distance (no impurities)
under vertical force direction (90-degree angle)
at conditions approx. 20°C

Determinants of lifting force in real conditions

Bear in mind that the magnet holding may be lower subject to elements below, in order of importance:

Air gap (betwixt the magnet and the plate), since even a tiny distance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Material composition – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, however under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.

Safety rules for work with neodymium magnets

Electronic devices

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

Magnet fragility

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Do not overheat magnets

Watch the temperature. Exposing the magnet above 80 degrees Celsius will destroy its properties and strength.

Flammability

Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.

Caution required

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

Phone sensors

Navigation devices and mobile phones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Nickel coating and allergies

A percentage of the population suffer from a contact allergy to Ni, which is the common plating for neodymium magnets. Frequent touching might lead to a rash. We recommend wear safety gloves.

Adults only

Absolutely store magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.

Pinching danger

Danger of trauma: The pulling power is so great that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.

Danger to pacemakers

Warning for patients: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Danger! Want to know more? Read our article: Why are neodymium magnets dangerous?

MPL 15x15x5 / N38 - lamellar magnet

Technical details - MPL 15x15x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - technical parameters

Table 1: Static pull force (force vs gap) - characteristics MPL 15x15x5 / N38

Table 2: Slippage force (wall) MPL 15x15x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 15x15x5 / N38

Table 4: Steel thickness (substrate influence) - power losses MPL 15x15x5 / N38

Table 5: Working in heat (stability) - resistance threshold MPL 15x15x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 15x15x5 / N38

Table 7: Hazards (implants) - precautionary measures MPL 15x15x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects MPL 15x15x5 / N38

Table 9: Surface protection spec MPL 15x15x5 / N38

Table 10: Electrical data (Flux) MPL 15x15x5 / N38

Table 11: Submerged application MPL 15x15x5 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Thermal stability

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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MW 5x10 / N38 - cylindrical magnet

Pros as well as cons of Nd2Fe14B magnets.

Advantages

Limitations

Pull force analysis

Detachment force of the magnet in optimal conditions – what it depends on?

Determinants of lifting force in real conditions

Safety rules for work with neodymium magnets

Electronic devices

Magnet fragility

Do not overheat magnets

Flammability

Caution required

Phone sensors

Nickel coating and allergies

Adults only

Pinching danger

Danger to pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MPL 15x15x5 / N38

Table 2: Slippage force (wall)
MPL 15x15x5 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 15x15x5 / N38

Table 4: Steel thickness (substrate influence) - power losses
MPL 15x15x5 / N38

Table 5: Working in heat (stability) - resistance threshold
MPL 15x15x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 15x15x5 / N38

Table 7: Hazards (implants) - precautionary measures
MPL 15x15x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MPL 15x15x5 / N38

Table 9: Surface protection spec
MPL 15x15x5 / N38

Table 10: Electrical data (Flux)
MPL 15x15x5 / N38

Table 11: Submerged application
MPL 15x15x5 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.