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MPL 20x5x3 / 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 020131

GTIN/EAN: 5906301811374

5.00

length

20 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

2.25 g

Magnetization Direction

↑ axial

Load capacity

3.46 kg / 33.96 N

Magnetic Induction

358.88 mT / 3589 Gs

Coating

[NiCuNi] Nickel

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1.058 ZŁ with VAT / pcs + price for transport

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Technical details - MPL 20x5x3 / N38 - lamellar magnet

Specification / characteristics - MPL 20x5x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020131
GTIN/EAN	5906301811374
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	20 mm [±0,1 mm]
Width	5 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	2.25 g
Magnetization Direction	↑ axial
Load capacity ~ ?	3.46 kg / 33.96 N
Magnetic Induction ~ ?	358.88 mT / 3589 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x5x3 / 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

Technical analysis of the product - report

Presented values represent the direct effect of a engineering calculation. Values are based on models for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Please consider these calculations as a supplementary guide for designers.

Table 1: Static force (force vs gap) - power drop
MPL 20x5x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3585 Gs 358.5 mT	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N	strong
1 mm	2619 Gs 261.9 mT	1.85 kg / 4.07 lbs 1846.6 g / 18.1 N	weak grip
2 mm	1818 Gs 181.8 mT	0.89 kg / 1.96 lbs 889.8 g / 8.7 N	weak grip
3 mm	1279 Gs 127.9 mT	0.44 kg / 0.97 lbs 440.2 g / 4.3 N	weak grip
5 mm	696 Gs 69.6 mT	0.13 kg / 0.29 lbs 130.6 g / 1.3 N	weak grip
10 mm	225 Gs 22.5 mT	0.01 kg / 0.03 lbs 13.6 g / 0.1 N	weak grip
15 mm	97 Gs 9.7 mT	0.00 kg / 0.01 lbs 2.5 g / 0.0 N	weak grip
20 mm	49 Gs 4.9 mT	0.00 kg / 0.00 lbs 0.6 g / 0.0 N	weak grip
30 mm	17 Gs 1.7 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	weak grip
50 mm	4 Gs 0.4 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Grip strength drops drastically with every subsequent millimeter of spacing. Keep in mind that even the smallest gap (e.g., contamination, paint, rust) strongly diminishes the holding power. Magnets work most effectively during direct contact; gap drastically cuts the power. Observe how rapidly the pull force plummet, when the product does not adhere directly to the metal substrate. When calculating the arrangement, avoid redundant distances.

Table 2: Slippage hold (vertical surface)
MPL 20x5x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.69 kg / 1.53 lbs 692.0 g / 6.8 N
1 mm	Stal (~0.2)	0.37 kg / 0.82 lbs 370.0 g / 3.6 N
2 mm	Stal (~0.2)	0.18 kg / 0.39 lbs 178.0 g / 1.7 N
3 mm	Stal (~0.2)	0.09 kg / 0.19 lbs 88.0 g / 0.9 N
5 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 26.0 g / 0.3 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 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 estimated holding capacity required to start the shifting of the magnet vertically against a upright steel plate (assuming typical friction). The holding force depends on the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 20x5x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.04 kg / 2.29 lbs 1038.0 g / 10.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.69 kg / 1.53 lbs 692.0 g / 6.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.35 kg / 0.76 lbs 346.0 g / 3.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.73 kg / 3.81 lbs 1730.0 g / 17.0 N

When mounting a holder on a vertical plane (e.g., a fridge), it you can count on barely about 20%-30% of its maximum pull force. Gravity and a low friction coefficient influence the fact that holders move down easier than they pull off. Want to create a wall mount? Remember that the sliding force is much weaker than the maximum static pull force. On a painted metal, the magnet will give way down under a noticeably lighter weight. Utilizing a rubberized pad can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MPL 20x5x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.35 kg / 0.76 lbs 346.0 g / 3.4 N
1 mm	25%	0.87 kg / 1.91 lbs 865.0 g / 8.5 N
2 mm	50%	1.73 kg / 3.81 lbs 1730.0 g / 17.0 N
3 mm	75%	2.59 kg / 5.72 lbs 2595.0 g / 25.5 N
5 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N
10 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N
11 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N
12 mm	100%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N

A thin sheet is unable to focus the entire magnetic field, which wastes potential of the magnet. If you attach a powerful product to a thin surface, the field will penetrate right through and the pull force will drop sharply. To utilize 100% of this neodymium's potential, you need a suitably thick piece of steel. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the magnet works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (material behavior) - thermal limit
MPL 20x5x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	3.46 kg / 7.63 lbs 3460.0 g / 33.9 N	OK
40 °C	-2.2%	3.38 kg / 7.46 lbs 3383.9 g / 33.2 N	OK
60 °C	-4.4%	3.31 kg / 7.29 lbs 3307.8 g / 32.4 N
80 °C	-6.6%	3.23 kg / 7.12 lbs 3231.6 g / 31.7 N
100 °C	-28.8%	2.46 kg / 5.43 lbs 2463.5 g / 24.2 N

Ordinary NdFeB products irreversibly lose strength above the temperature limit. Avoid high temperatures – excessive heat can irreversibly destroy this magnet. With every degree above norm, the magnet's power momentarily lowers. Do not use this magnet close to heaters exceeding its safe range. Too high temperature will lead to irreversible degradation of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Thin magnets (low Pc) may lose charge permanently sooner than long magnets. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 20x5x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	7.92 kg / 17.47 lbs 4 860 Gs	1.19 kg / 2.62 lbs 1189 g / 11.7 N	N/A
1 mm	5.94 kg / 13.10 lbs 6 209 Gs	0.89 kg / 1.97 lbs 891 g / 8.7 N	5.35 kg / 11.79 lbs ~0 Gs
2 mm	4.23 kg / 9.32 lbs 5 238 Gs	0.63 kg / 1.40 lbs 634 g / 6.2 N	3.81 kg / 8.39 lbs ~0 Gs
3 mm	2.94 kg / 6.49 lbs 4 369 Gs	0.44 kg / 0.97 lbs 441 g / 4.3 N	2.65 kg / 5.84 lbs ~0 Gs
5 mm	1.42 kg / 3.14 lbs 3 039 Gs	0.21 kg / 0.47 lbs 213 g / 2.1 N	1.28 kg / 2.82 lbs ~0 Gs
10 mm	0.30 kg / 0.66 lbs 1 393 Gs	0.04 kg / 0.10 lbs 45 g / 0.4 N	0.27 kg / 0.59 lbs ~0 Gs
20 mm	0.03 kg / 0.07 lbs 450 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.06 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 56 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 34 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 23 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 16 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 11 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 8 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two strong neodymiums interact from a much further distance than a neodymium and metal combination. The setup of magnet-to-magnet generates a stronger field and a larger range of operation. Want to build a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Remember that when attracting two neodymiums, the impact force is extreme. The levitation is marginally weaker than the connection force, but still large.
*The magnetic induction for N-N configuration drops to ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
Note: Estimates demonstrate shear force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 20x5x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.0 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Mechanical watch	20 Gs (2.0 mT)	3.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field poses a large risk to IT equipment as well as medical implants. These neodymiums produce a field that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field acts through matter and plastic. Increased vigilance must be taken by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, remotes, speakers, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MPL 20x5x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	39.65 km/h (11.01 m/s)	0.14 J
30 mm	68.50 km/h (19.03 m/s)	0.41 J
50 mm	88.43 km/h (24.56 m/s)	0.68 J
100 mm	125.06 km/h (34.74 m/s)	1.36 J

Magnetic elements are delicate – a collision with steel can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can trigger coating fragments or injury to skin. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Anti-corrosion coating durability
MPL 20x5x3 / 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 (Flux)
MPL 20x5x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 197 Mx	32.0 µWb
P_c Coefficient	0.36	Low (Flat)

Flux value passing through the magnet pole. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MPL 20x5x3 / N38

Environment	Effective steel pull	Effect
Air (land)	3.46 kg	Standard
Water (riverbed)	3.96 kg (+0.50 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Efficiency vs thickness

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.36

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

Technical specification and ecology

Chemical composition

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

Ecology and recycling (GPSR)

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 020131-2026

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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 20x5x3 mm and a weight of 2.25 g, guarantees the highest quality connection. This magnetic block with a force of 33.96 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 block 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 3.46 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.

They constitute a key element in the production of generators and material handling systems. Thanks to the flat surface and high force (approx. 3.46 kg), they are ideal as closers in furniture making and mounting elements in automation. 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 20x5x3 / 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.

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.

The presented product is a neodymium magnet with precisely defined parameters: 20 mm (length), 5 mm (width), and 3 mm (thickness). It is a magnetic block with dimensions 20x5x3 mm and a self-weight of 2.25 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.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They do not lose power, even after approximately ten years – the reduction in strength is only ~1% (based on measurements),
They feature excellent resistance to magnetism drop when exposed to external magnetic sources,
Thanks to the glossy finish, the layer of Ni-Cu-Ni, gold, or silver-plated gives an clean appearance,
Magnets possess very high magnetic induction on the working surface,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to freedom in shaping and the ability to modify to individual projects,
Huge importance in future technologies – they are utilized in computer drives, electric motors, medical equipment, also technologically advanced constructions.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Disadvantages

What to avoid - cons of neodymium magnets: weaknesses and usage proposals

They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Limited possibility of producing threads in the magnet and complex forms - recommended is a housing - magnetic holder.
Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, small elements of these magnets can complicate diagnosis medical when they are in the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

The load parameter shown concerns the limit force, recorded under ideal test conditions, specifically:

with the application of a yoke made of special test steel, guaranteeing full magnetic saturation
with a cross-section minimum 10 mm
characterized by lack of roughness
under conditions of gap-free contact (metal-to-metal)
under axial application of breakaway force (90-degree angle)
in neutral thermal conditions

Determinants of lifting force in real conditions

Effective lifting capacity is influenced by specific conditions, such as (from priority):

Space between magnet and steel – every millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Plate material – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal environment – temperature increase results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Phone sensors

Remember: rare earth magnets generate a field that confuses sensitive sensors. Keep a safe distance from your phone, device, and navigation systems.

Danger to pacemakers

For implant holders: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or request help to handle the magnets.

Swallowing risk

Always keep magnets away from children. Ingestion danger is high, and the consequences of magnets connecting inside the body are fatal.

Do not overheat magnets

Avoid heat. NdFeB magnets are sensitive to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Crushing risk

Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying anything in their path. Exercise extreme caution!

Caution required

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Avoid contact if allergic

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, cease handling magnets and wear gloves.

Combustion hazard

Powder created during grinding of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Electronic hazard

Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Beware of splinters

Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.

Danger! Want to know more? Check our post: Are neodymium magnets dangerous?

MPL 20x5x3 / N38 - lamellar magnet

Technical details - MPL 20x5x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - report

Table 1: Static force (force vs gap) - power drop MPL 20x5x3 / N38

Table 2: Slippage hold (vertical surface) MPL 20x5x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 20x5x3 / N38

Table 4: Material efficiency (substrate influence) - power losses MPL 20x5x3 / N38

Table 5: Thermal stability (material behavior) - thermal limit MPL 20x5x3 / N38

Table 6: Two magnets (attraction) - field collision MPL 20x5x3 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MPL 20x5x3 / N38

Table 8: Impact energy (cracking risk) - collision effects MPL 20x5x3 / N38

Table 9: Anti-corrosion coating durability MPL 20x5x3 / N38

Table 10: Construction data (Flux) MPL 20x5x3 / N38

Table 11: Hydrostatics and buoyancy MPL 20x5x3 / N38

1. Shear force

2. Efficiency vs thickness

3. Heat tolerance

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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Strengths as well as weaknesses of neodymium magnets.

Advantages

Disadvantages

Lifting parameters

Detachment force of the magnet in optimal conditions – what contributes to it?

Determinants of lifting force in real conditions

Safety rules for work with neodymium magnets

Phone sensors

Danger to pacemakers

Swallowing risk

Do not overheat magnets

Crushing risk

Caution required

Avoid contact if allergic

Combustion hazard

Electronic hazard

Beware of splinters

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MPL 20x5x3 / N38

Table 2: Slippage hold (vertical surface)
MPL 20x5x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 20x5x3 / N38

Table 4: Material efficiency (substrate influence) - power losses
MPL 20x5x3 / N38

Table 5: Thermal stability (material behavior) - thermal limit
MPL 20x5x3 / N38

Table 6: Two magnets (attraction) - field collision
MPL 20x5x3 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MPL 20x5x3 / N38

Table 8: Impact energy (cracking risk) - collision effects
MPL 20x5x3 / N38

Table 9: Anti-corrosion coating durability
MPL 20x5x3 / N38

Table 10: Construction data (Flux)
MPL 20x5x3 / N38

Table 11: Hydrostatics and buoyancy
MPL 20x5x3 / N38