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MW 18.9x10 / 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 010036

GTIN/EAN: 5906301810353

5.00

Diameter Ø

18.9 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

21.04 g

Magnetization Direction

→ diametrical

Load capacity

11.68 kg / 114.54 N

Magnetic Induction

450.35 mT / 4503 Gs

Coating

[NiCuNi] Nickel

technical details »

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Technical - MW 18.9x10 / N38 - cylindrical magnet

Specification / characteristics - MW 18.9x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010036
GTIN/EAN	5906301810353
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	18.9 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	21.04 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	11.68 kg / 114.54 N
Magnetic Induction ~ ?	450.35 mT / 4503 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 18.9x10 / 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 analysis of the product - data

Presented data constitute the direct effect of a mathematical simulation. Results are based on models for the class Nd₂Fe₁₄B. Actual conditions may differ from theoretical values. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs gap) - power drop
MW 18.9x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4502 Gs 450.2 mT	11.68 kg / 25.75 LBS 11680.0 g / 114.6 N	critical level
1 mm	4050 Gs 405.0 mT	9.46 kg / 20.85 LBS 9455.2 g / 92.8 N	medium risk
2 mm	3587 Gs 358.7 mT	7.42 kg / 16.35 LBS 7416.3 g / 72.8 N	medium risk
3 mm	3139 Gs 313.9 mT	5.68 kg / 12.52 LBS 5678.8 g / 55.7 N	medium risk
5 mm	2346 Gs 234.6 mT	3.17 kg / 6.99 LBS 3172.5 g / 31.1 N	medium risk
10 mm	1100 Gs 110.0 mT	0.70 kg / 1.54 LBS 696.7 g / 6.8 N	weak grip
15 mm	554 Gs 55.4 mT	0.18 kg / 0.39 LBS 176.7 g / 1.7 N	weak grip
20 mm	308 Gs 30.8 mT	0.05 kg / 0.12 LBS 54.6 g / 0.5 N	weak grip
30 mm	120 Gs 12.0 mT	0.01 kg / 0.02 LBS 8.3 g / 0.1 N	weak grip
50 mm	32 Gs 3.2 mT	0.00 kg / 0.00 LBS 0.6 g / 0.0 N	weak grip

Pulling power drops sharply with every mm of distance. Note that even a microscopic distance (e.g., dirt, paint, veneer) strongly diminishes the holding power. Neodymiums work optimally at the point of direct contact; distance weakens the power. See how quickly the load capacity fall, when the magnet does not adhere flatly to the steel surface. When planning the arrangement, discard additional spacers.

Table 2: Vertical force (vertical surface)
MW 18.9x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.34 kg / 5.15 LBS 2336.0 g / 22.9 N
1 mm	Stal (~0.2)	1.89 kg / 4.17 LBS 1892.0 g / 18.6 N
2 mm	Stal (~0.2)	1.48 kg / 3.27 LBS 1484.0 g / 14.6 N
3 mm	Stal (~0.2)	1.14 kg / 2.50 LBS 1136.0 g / 11.1 N
5 mm	Stal (~0.2)	0.63 kg / 1.40 LBS 634.0 g / 6.2 N
10 mm	Stal (~0.2)	0.14 kg / 0.31 LBS 140.0 g / 1.4 N
15 mm	Stal (~0.2)	0.04 kg / 0.08 LBS 36.0 g / 0.4 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The table below presents the estimated force needed to start the shifting of the magnet vertically against a vertical metal surface (considering standard friction). The holding force is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - vertical pull
MW 18.9x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	3.50 kg / 7.72 LBS 3504.0 g / 34.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.34 kg / 5.15 LBS 2336.0 g / 22.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.17 kg / 2.57 LBS 1168.0 g / 11.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.84 kg / 12.87 LBS 5840.0 g / 57.3 N

When mounting a magnet on a vertical plane (e.g., a board), it will maintain only approx. 1/5 of its maximum pull force. Gravitational force as well as a low friction coefficient influence the fact that magnets move down easier than they detach. Want to create a vertical fastening? Consider that the shear force is significantly lower than the maximum static pull force. On a painted metal, the holder will give way down under a noticeably lighter weight. Using a rubber pad can effectively increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 18.9x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.58 kg / 1.29 LBS 584.0 g / 5.7 N
1 mm	13%	1.46 kg / 3.22 LBS 1460.0 g / 14.3 N
2 mm	25%	2.92 kg / 6.44 LBS 2920.0 g / 28.6 N
3 mm	38%	4.38 kg / 9.66 LBS 4380.0 g / 43.0 N
5 mm	63%	7.30 kg / 16.09 LBS 7300.0 g / 71.6 N
10 mm	100%	11.68 kg / 25.75 LBS 11680.0 g / 114.6 N
11 mm	100%	11.68 kg / 25.75 LBS 11680.0 g / 114.6 N
12 mm	100%	11.68 kg / 25.75 LBS 11680.0 g / 114.6 N

A thin metal plate is not enough to conduct the full magnetic flux, which squanders power of the magnet. Should you mount a strong magnet to a thin surface, the flux will pass right through and the holding will be smaller. To utilize 100% of this neodymium's potential, you require a sufficiently solid backing of steel. The material oversaturation means that on thin elements (e.g., thin profiles), the product shows lower pull force. We recommend selecting the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MW 18.9x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	11.68 kg / 25.75 LBS 11680.0 g / 114.6 N	OK
40 °C	-2.2%	11.42 kg / 25.18 LBS 11423.0 g / 112.1 N	OK
60 °C	-4.4%	11.17 kg / 24.62 LBS 11166.1 g / 109.5 N	OK
80 °C	-6.6%	10.91 kg / 24.05 LBS 10909.1 g / 107.0 N
100 °C	-28.8%	8.32 kg / 18.33 LBS 8316.2 g / 81.6 N

Ordinary NdFeB products lose parameters above the temperature limit. Watch out for overheating – excessive heat can permanently destroy this magnet. As the temperature rises, the magnet's power temporarily lowers. Refrain from using this magnet close to heaters higher than its safe range. Ignoring the limit will cause irreversible degradation of magnetic properties.

*Technical advisory: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Thin magnets (pancake types) may lose charge permanently at lower temperatures than taller cylinders. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 18.9x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	35.05 kg / 77.28 LBS 5 600 Gs	5.26 kg / 11.59 LBS 5258 g / 51.6 N	N/A
1 mm	31.70 kg / 69.88 LBS 8 562 Gs	4.75 kg / 10.48 LBS 4754 g / 46.6 N	28.53 kg / 62.89 LBS ~0 Gs
2 mm	28.38 kg / 62.56 LBS 8 101 Gs	4.26 kg / 9.38 LBS 4256 g / 41.8 N	25.54 kg / 56.30 LBS ~0 Gs
3 mm	25.22 kg / 55.59 LBS 7 636 Gs	3.78 kg / 8.34 LBS 3782 g / 37.1 N	22.69 kg / 50.03 LBS ~0 Gs
5 mm	19.53 kg / 43.05 LBS 6 720 Gs	2.93 kg / 6.46 LBS 2929 g / 28.7 N	17.57 kg / 38.75 LBS ~0 Gs
10 mm	9.52 kg / 20.99 LBS 4 692 Gs	1.43 kg / 3.15 LBS 1428 g / 14.0 N	8.57 kg / 18.89 LBS ~0 Gs
20 mm	2.09 kg / 4.61 LBS 2 199 Gs	0.31 kg / 0.69 LBS 314 g / 3.1 N	1.88 kg / 4.15 LBS ~0 Gs
50 mm	0.06 kg / 0.13 LBS 372 Gs	0.01 kg / 0.02 LBS 9 g / 0.1 N	0.05 kg / 0.12 LBS ~0 Gs
60 mm	0.03 kg / 0.06 LBS 241 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs
70 mm	0.01 kg / 0.03 LBS 164 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs
80 mm	0.01 kg / 0.01 LBS 116 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.01 LBS 86 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 65 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 steel combination. The setup of magnet-to-magnet produces a massive flux and a wider radius of action. Designing a strong closure? Apply two magnets instead of one magnet and a steel. Be careful that when connecting a pair of magnets, the impact force is extreme. The repulsion force is slightly lower than the connection force, but still significant.
*The magnetic induction between like poles is approximately ~0 Gs at the midpoint between the magnets (resulting from vector opposition).
Important: Calculations show friction force of two identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 18.9x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	10.0 cm
Hearing aid	10 Gs (1.0 mT)	8.0 cm
Timepiece	20 Gs (2.0 mT)	6.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.0 cm
Car key	50 Gs (5.0 mT)	4.5 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field poses a large risk to electronics as well as medical implants. These magnets generate a flux that prevents correct functioning of digital equipment. Remember: the unseen radiation passes through tissues and housings. Special caution must be taken by people with hearing aids and drug dispensers. Also at risk are: mechanical watches, car keys, membranes, and displays. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MW 18.9x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.63 km/h (6.84 m/s)	0.49 J
30 mm	41.18 km/h (11.44 m/s)	1.38 J
50 mm	53.13 km/h (14.76 m/s)	2.29 J
100 mm	75.14 km/h (20.87 m/s)	4.58 J

Neodymium magnets are prone to chipping – a collision with steel risks their cracking. Watch the impact speed – a magnet released freely speeds with massive force. Impact energy can cause material chips or dangerous crushing to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the steel surface. A collision at high speed ends with a crack of the magnet. Use safety goggles when playing with large magnets.

Table 9: Coating parameters (durability)
MW 18.9x10 / 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 (Flux)
MW 18.9x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	12 775 Mx	127.7 µWb
P_c Coefficient	0.61	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data when building generators and motors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 18.9x10 / N38

Environment	Effective steel pull	Effect
Air (land)	11.68 kg	Standard
Water (riverbed)	13.37 kg (+1.69 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

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

2. Steel saturation

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

3. Power loss vs temp

*For N38 grade, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.61

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%

Environmental data

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

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

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

batch number/type

id: 010036-2026

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This product is an extremely powerful cylinder magnet, composed of durable NdFeB material, which, at dimensions of Ø18.9x10 mm, guarantees the highest energy density. The MW 18.9x10 / N38 component boasts high dimensional repeatability and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 11.68 kg), this product is in stock from our European logistics center, 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 successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the pull force of 114.54 N with a weight of only 21.04 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 best method is to glue them into holes with a slightly larger diameter (e.g., 18.9.1 mm) using two-component epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for the majority of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø18.9x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø18.9x10 mm, which, at a weight of 21.04 g, makes it an element with high magnetic energy density. The value of 114.54 N means that the magnet is capable of holding a weight many times exceeding its own mass of 21.04 g. The product has a [NiCuNi] coating, which secures it 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 18.9 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Pros as well as cons of rare earth magnets.

Pros

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They do not lose strength, even during nearly ten years – the drop in power is only ~1% (according to tests),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
In other words, due to the reflective surface of silver, the element is aesthetically pleasing,
The surface of neodymium magnets generates a powerful 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...
Thanks to modularity in designing and the capacity to modify to complex applications,
Key role in future technologies – they find application in data components, motor assemblies, diagnostic systems, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in miniature devices

Limitations

Disadvantages of neodymium magnets:

At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape as well as 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. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
We suggest cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complex forms.
Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to disrupt the diagnostic process medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Magnet power was determined for optimal configuration, taking into account:

on a block made of structural steel, optimally conducting the magnetic flux
possessing a massiveness of min. 10 mm to ensure full flux closure
with an polished touching surface
without any insulating layer between the magnet and steel
during detachment in a direction perpendicular to the mounting surface
at standard ambient temperature

Key elements affecting lifting force

During everyday use, the actual lifting capacity depends on several key aspects, presented from most significant:

Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
Steel thickness – too thin plate does not accept the full field, causing part of the flux to be wasted into the air.
Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate reduces the holding force.

Safety rules for work with NdFeB magnets

Magnetic media

Data protection: Strong magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, timepieces).

Serious injuries

Protect your hands. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Protective goggles

Watch out for shards. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Wear goggles.

Avoid contact if allergic

Some people experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Extended handling might lead to skin redness. We strongly advise wear safety gloves.

Safe operation

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

Machining danger

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

Heat warning

Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

GPS Danger

Remember: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, device, and navigation systems.

Keep away from children

Strictly keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are life-threatening.

Medical implants

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Attention! Looking for details? Check our post: Are neodymium magnets dangerous?

MW 18.9x10 / N38 - cylindrical magnet

Technical - MW 18.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - data

Table 1: Static force (pull vs gap) - power drop MW 18.9x10 / N38

Table 2: Vertical force (vertical surface) MW 18.9x10 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 18.9x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 18.9x10 / N38

Table 5: Thermal stability (material behavior) - power drop MW 18.9x10 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 18.9x10 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 18.9x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 18.9x10 / N38

Table 9: Coating parameters (durability) MW 18.9x10 / N38

Table 10: Construction data (Flux) MW 18.9x10 / N38

Table 11: Underwater work (magnet fishing) MW 18.9x10 / N38

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Material specification

Environmental data

Force (pull)

Magnetic Field

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Pros as well as cons of rare earth magnets.

Pros

Limitations

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Key elements affecting lifting force

Safety rules for work with NdFeB magnets

Magnetic media

Serious injuries

Protective goggles

Avoid contact if allergic

Safe operation

Machining danger

Heat warning

GPS Danger

Keep away from children

Medical implants

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MW 18.9x10 / N38

Table 2: Vertical force (vertical surface)
MW 18.9x10 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 18.9x10 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 18.9x10 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 18.9x10 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 18.9x10 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 18.9x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 18.9x10 / N38

Table 9: Coating parameters (durability)
MW 18.9x10 / N38

Table 10: Construction data (Flux)
MW 18.9x10 / N38

Table 11: Underwater work (magnet fishing)
MW 18.9x10 / N38