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MW 20x18 / N38 - cylindrical 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

cylindrical magnet

Catalog no 010040

GTIN/EAN: 5906301810391

Diameter Ø

20 mm [±0,1 mm]

Height

18 mm [±0,1 mm]

Weight

42.41 g

Magnetization Direction

↑ axial

Load capacity

13.19 kg / 129.35 N

Magnetic Induction

541.64 mT / 5416 Gs

Coating

[NiCuNi] Nickel

see parameters »

23.54 ZŁ with VAT / pcs + price for transport

19.14 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 20x18 / N38 - cylindrical magnet

Specification / characteristics - MW 20x18 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010040
GTIN/EAN	5906301810391
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	20 mm [±0,1 mm]
Height	18 mm [±0,1 mm]
Weight	42.41 g
Magnetization Direction	↑ axial
Load capacity ~ ?	13.19 kg / 129.35 N
Magnetic Induction ~ ?	541.64 mT / 5416 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x18 / N38 - cylindrical magnet

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

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Physical simulation of the magnet - report

Presented data constitute the outcome of a engineering calculation. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Use these data as a reference point for designers.

Table 1: Static pull force (force vs distance) - interaction chart
MW 20x18 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5414 Gs 541.4 mT	13.19 kg / 29.08 pounds 13190.0 g / 129.4 N	dangerous!
1 mm	4870 Gs 487.0 mT	10.67 kg / 23.52 pounds 10669.5 g / 104.7 N	dangerous!
2 mm	4330 Gs 433.0 mT	8.43 kg / 18.59 pounds 8434.2 g / 82.7 N	warning
3 mm	3816 Gs 381.6 mT	6.55 kg / 14.45 pounds 6552.7 g / 64.3 N	warning
5 mm	2913 Gs 291.3 mT	3.82 kg / 8.42 pounds 3818.4 g / 37.5 N	warning
10 mm	1455 Gs 145.5 mT	0.95 kg / 2.10 pounds 952.2 g / 9.3 N	low risk
15 mm	775 Gs 77.5 mT	0.27 kg / 0.60 pounds 270.1 g / 2.7 N	low risk
20 mm	450 Gs 45.0 mT	0.09 kg / 0.20 pounds 91.3 g / 0.9 N	low risk
30 mm	188 Gs 18.8 mT	0.02 kg / 0.04 pounds 15.9 g / 0.2 N	low risk
50 mm	54 Gs 5.4 mT	0.00 kg / 0.00 pounds 1.3 g / 0.0 N	low risk

Pulling power weakens significantly per each millimeter of gap. Remember that every additional insulation layer (e.g., contamination, varnish, dust) strongly weakens the grip. Neodymiums work most effectively during direct contact; distance nullifies the force. See how flashily the pull force drop, when the product does not adhere directly to the steel surface. When designing the mounting, avoid unnecessary gaps.

Table 2: Sliding capacity (wall)
MW 20x18 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.64 kg / 5.82 pounds 2638.0 g / 25.9 N
1 mm	Stal (~0.2)	2.13 kg / 4.70 pounds 2134.0 g / 20.9 N
2 mm	Stal (~0.2)	1.69 kg / 3.72 pounds 1686.0 g / 16.5 N
3 mm	Stal (~0.2)	1.31 kg / 2.89 pounds 1310.0 g / 12.9 N
5 mm	Stal (~0.2)	0.76 kg / 1.68 pounds 764.0 g / 7.5 N
10 mm	Stal (~0.2)	0.19 kg / 0.42 pounds 190.0 g / 1.9 N
15 mm	Stal (~0.2)	0.05 kg / 0.12 pounds 54.0 g / 0.5 N
20 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 18.0 g / 0.2 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The following data defines the estimated holding capacity needed to cause the slippage of the magnet down along a upright steel plate (assuming typical friction coefficient). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MW 20x18 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.96 kg / 8.72 pounds 3957.0 g / 38.8 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.64 kg / 5.82 pounds 2638.0 g / 25.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.32 kg / 2.91 pounds 1319.0 g / 12.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	6.60 kg / 14.54 pounds 6595.0 g / 64.7 N

When mounting a holder on a upright plane (e.g., a board), it will maintain barely approx. 20%-30% of its nominal power. Gravity as well as a weak degree of grip influence the fact that magnets slip faster than they pull off. Want to create a wall mount? Consider that the shear force is much weaker than the maximum static pull force. On a slippery surface, the holder will slide down under a much lighter cargo. Application of an anti-slip pad can significantly improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 20x18 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.66 kg / 1.45 pounds 659.5 g / 6.5 N
1 mm	13%	1.65 kg / 3.63 pounds 1648.8 g / 16.2 N
2 mm	25%	3.30 kg / 7.27 pounds 3297.5 g / 32.3 N
3 mm	38%	4.95 kg / 10.90 pounds 4946.3 g / 48.5 N
5 mm	63%	8.24 kg / 18.17 pounds 8243.8 g / 80.9 N
10 mm	100%	13.19 kg / 29.08 pounds 13190.0 g / 129.4 N
11 mm	100%	13.19 kg / 29.08 pounds 13190.0 g / 129.4 N
12 mm	100%	13.19 kg / 29.08 pounds 13190.0 g / 129.4 N

A too thin steel is incapable of absorb the entire magnetic field, which wastes potential of the holder. If you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the pull force will drop sharply. To utilize the maximum of this neodymium's potential, you need a suitably thick element of metal. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the magnet works worse. We recommend selecting the steel thickness according to the table below.

Table 5: Thermal resistance (stability) - power drop
MW 20x18 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	13.19 kg / 29.08 pounds 13190.0 g / 129.4 N	OK
40 °C	-2.2%	12.90 kg / 28.44 pounds 12899.8 g / 126.5 N	OK
60 °C	-4.4%	12.61 kg / 27.80 pounds 12609.6 g / 123.7 N	OK
80 °C	-6.6%	12.32 kg / 27.16 pounds 12319.5 g / 120.9 N
100 °C	-28.8%	9.39 kg / 20.70 pounds 9391.3 g / 92.1 N

Ordinary NdFeB products change their properties parameters past the thermal threshold. Protect against heat – heat can permanently demagnetize this magnet. As the temperature rises, the neodymium's capacity briefly drops. Refrain from using this magnet close to ovens higher than its safe range. Exceeding the critical threshold will cause destruction of magnetism.

*Important note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently sooner compared to rod magnets. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x18 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	56.78 kg / 125.17 pounds 5 968 Gs	8.52 kg / 18.78 pounds 8516 g / 83.5 N	N/A
1 mm	51.26 kg / 113.01 pounds 10 289 Gs	7.69 kg / 16.95 pounds 7689 g / 75.4 N	46.13 kg / 101.71 pounds ~0 Gs
2 mm	45.93 kg / 101.25 pounds 9 739 Gs	6.89 kg / 15.19 pounds 6889 g / 67.6 N	41.33 kg / 91.13 pounds ~0 Gs
3 mm	40.93 kg / 90.24 pounds 9 194 Gs	6.14 kg / 13.54 pounds 6140 g / 60.2 N	36.84 kg / 81.22 pounds ~0 Gs
5 mm	32.06 kg / 70.68 pounds 8 137 Gs	4.81 kg / 10.60 pounds 4809 g / 47.2 N	28.86 kg / 63.62 pounds ~0 Gs
10 mm	16.44 kg / 36.24 pounds 5 826 Gs	2.47 kg / 5.44 pounds 2465 g / 24.2 N	14.79 kg / 32.61 pounds ~0 Gs
20 mm	4.10 kg / 9.04 pounds 2 909 Gs	0.61 kg / 1.36 pounds 615 g / 6.0 N	3.69 kg / 8.13 pounds ~0 Gs
50 mm	0.15 kg / 0.34 pounds 565 Gs	0.02 kg / 0.05 pounds 23 g / 0.2 N	0.14 kg / 0.31 pounds ~0 Gs
60 mm	0.07 kg / 0.15 pounds 376 Gs	0.01 kg / 0.02 pounds 10 g / 0.1 N	0.06 kg / 0.14 pounds ~0 Gs
70 mm	0.03 kg / 0.07 pounds 262 Gs	0.00 kg / 0.01 pounds 5 g / 0.0 N	0.03 kg / 0.07 pounds ~0 Gs
80 mm	0.02 kg / 0.04 pounds 190 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.03 pounds ~0 Gs
90 mm	0.01 kg / 0.02 pounds 142 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.01 kg / 0.01 pounds 109 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a neodymium and metal setup. The connection of magnet-to-magnet creates a more powerful interaction and a larger range of performance. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is huge. The levitation is a bit weaker than the attraction, but still significant.
*The magnetic induction for N-N configuration drops to ~0 Gs in the exact middle of the gap (due to field cancellation).
* Calculations apply to shear force of two matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 20x18 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	12.5 cm
Hearing aid	10 Gs (1.0 mT)	9.5 cm
Mechanical watch	20 Gs (2.0 mT)	7.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	6.0 cm
Remote	50 Gs (5.0 mT)	5.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

A strong magnetic field is a serious hazard to IT equipment as well as medical implants. These magnets generate a field that destroys function of sensitive medical devices. Remember: the invisible magnetic field acts through matter and housings. Special caution must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and displays. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 20x18 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.57 km/h (5.16 m/s)	0.56 J
30 mm	30.83 km/h (8.56 m/s)	1.56 J
50 mm	39.77 km/h (11.05 m/s)	2.59 J
100 mm	56.24 km/h (15.62 m/s)	5.18 J

Neodymium magnets are delicate – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose becomes dangerous. Impact energy can cause material chips or dangerous crushing to fingers. Be sure to control the product during mounting so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Anti-corrosion coating durability
MW 20x18 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MW 20x18 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	17 374 Mx	173.7 µWb
P_c Coefficient	0.85	High (Stable)

Flux value passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Submerged application
MW 20x18 / N38

Environment	Effective steel pull	Effect
Air (land)	13.19 kg	Standard
Water (riverbed)	15.10 kg (+1.91 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Sliding resistance

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

2. Steel thickness impact

*Thin steel (e.g. computer case) drastically weakens the holding force.

3. Power loss vs temp

*For N38 grade, 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) = 0.85

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

Elemental analysis

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: 010040-2026

Measurement Calculator

Force (pull)

Newtons (N)

Force in lbs

Magnetic Field

Gauss (Gs)

Simply complete a single box, and the tool calculate everything else automatically.

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The offered product is an exceptionally strong rod magnet, composed of modern NdFeB material, which, with dimensions of Ø20x18 mm, guarantees maximum efficiency. This specific item is characterized by high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 13.19 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 129.35 N with a weight of only 42.41 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 20.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are suitable for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø20x18), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø20x18 mm, which, at a weight of 42.41 g, makes it an element with high magnetic energy density. The value of 129.35 N means that the magnet is capable of holding a weight many times exceeding its own mass of 42.41 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 20 mm. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Pros

Besides their tremendous pulling force, neodymium magnets offer the following advantages:

They do not lose power, even after nearly 10 years – the drop in strength is only ~1% (according to tests),
Neodymium magnets are characterized by highly resistant to magnetic field loss caused by external interference,
By covering with a lustrous coating of nickel, the element gains an elegant look,
The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Possibility of exact modeling and adapting to atypical conditions,
Significant place in modern technologies – they serve a role in HDD drives, drive modules, precision medical tools, and technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
Due to limitations in realizing nuts and complex forms in magnets, we recommend using cover - magnetic mechanism.
Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these magnets can disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The declared magnet strength refers to the maximum value, measured under ideal test conditions, namely:

with the contact of a yoke made of low-carbon steel, ensuring full magnetic saturation
possessing a thickness of at least 10 mm to ensure full flux closure
with an polished contact surface
with zero gap (no impurities)
during detachment in a direction perpendicular to the plane
in neutral thermal conditions

What influences lifting capacity in practice

Effective lifting capacity is influenced by specific conditions, including (from most important):

Air gap (betwixt the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Plate material – mild steel gives the best results. Alloy steels lower magnetic permeability and holding force.
Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).

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

Safe handling of neodymium magnets

GPS and phone interference

GPS units and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Bodily injuries

Pinching hazard: The pulling power is so immense that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Electronic hazard

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can destroy these devices and wipe information from cards.

Safe operation

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.

Warning for heart patients

For implant holders: Powerful magnets disrupt electronics. Keep at least 30 cm distance or request help to handle the magnets.

Do not give to children

Strictly store magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are tragic.

Material brittleness

Watch out for shards. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Allergy Warning

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, cease handling magnets and use protective gear.

Operating temperature

Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.

Machining danger

Dust created during grinding of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

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

MW 20x18 / N38 - cylindrical magnet

Technical of the product - MW 20x18 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - report

Table 1: Static pull force (force vs distance) - interaction chart MW 20x18 / N38

Table 2: Sliding capacity (wall) MW 20x18 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 20x18 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 20x18 / N38

Table 5: Thermal resistance (stability) - power drop MW 20x18 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 20x18 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 20x18 / N38

Table 8: Impact energy (kinetic energy) - warning MW 20x18 / N38

Table 9: Anti-corrosion coating durability MW 20x18 / N38

Table 10: Construction data (Pc) MW 20x18 / N38

Table 11: Submerged application MW 20x18 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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Advantages and disadvantages of rare earth magnets.

Pros

Weaknesses

Lifting parameters

Maximum holding power of the magnet – what it depends on?

What influences lifting capacity in practice

Safe handling of neodymium magnets

GPS and phone interference

Bodily injuries

Electronic hazard

Safe operation

Warning for heart patients

Do not give to children

Material brittleness

Allergy Warning

Operating temperature

Machining danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 20x18 / N38

Table 2: Sliding capacity (wall)
MW 20x18 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 20x18 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 20x18 / N38

Table 5: Thermal resistance (stability) - power drop
MW 20x18 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x18 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 20x18 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 20x18 / N38

Table 9: Anti-corrosion coating durability
MW 20x18 / N38

Table 10: Construction data (P_c)
MW 20x18 / N38

Table 11: Submerged application
MW 20x18 / N38