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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

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Technical details - 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

Engineering analysis of the magnet - technical parameters

Presented information constitute the outcome of a physical calculation. Results are based on models for the class Nd₂Fe₁₄B. Operational parameters may differ. Please consider these data as a supplementary guide for designers.

Table 1: Static pull force (force vs distance) - characteristics
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 pounds 11680.0 g / 114.6 N	critical level
1 mm	4050 Gs 405.0 mT	9.46 kg / 20.85 pounds 9455.2 g / 92.8 N	warning
2 mm	3587 Gs 358.7 mT	7.42 kg / 16.35 pounds 7416.3 g / 72.8 N	warning
3 mm	3139 Gs 313.9 mT	5.68 kg / 12.52 pounds 5678.8 g / 55.7 N	warning
5 mm	2346 Gs 234.6 mT	3.17 kg / 6.99 pounds 3172.5 g / 31.1 N	warning
10 mm	1100 Gs 110.0 mT	0.70 kg / 1.54 pounds 696.7 g / 6.8 N	safe
15 mm	554 Gs 55.4 mT	0.18 kg / 0.39 pounds 176.7 g / 1.7 N	safe
20 mm	308 Gs 30.8 mT	0.05 kg / 0.12 pounds 54.6 g / 0.5 N	safe
30 mm	120 Gs 12.0 mT	0.01 kg / 0.02 pounds 8.3 g / 0.1 N	safe
50 mm	32 Gs 3.2 mT	0.00 kg / 0.00 pounds 0.6 g / 0.0 N	safe

Grip strength weakens drastically per each millimeter of distance. Note that even the smallest gap (e.g., dirt, varnish, dust) significantly reduces the pull force. Neodymiums hold strongest in perfect adhesion; gap nullifies the force. Analyze how quickly the load capacity plummet, when the magnet does not adhere directly to the metal substrate. When calculating the arrangement, avoid unnecessary gaps.

Table 2: Sliding hold (wall)
MW 18.9x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.34 kg / 5.15 pounds 2336.0 g / 22.9 N
1 mm	Stal (~0.2)	1.89 kg / 4.17 pounds 1892.0 g / 18.6 N
2 mm	Stal (~0.2)	1.48 kg / 3.27 pounds 1484.0 g / 14.6 N
3 mm	Stal (~0.2)	1.14 kg / 2.50 pounds 1136.0 g / 11.1 N
5 mm	Stal (~0.2)	0.63 kg / 1.40 pounds 634.0 g / 6.2 N
10 mm	Stal (~0.2)	0.14 kg / 0.31 pounds 140.0 g / 1.4 N
15 mm	Stal (~0.2)	0.04 kg / 0.08 pounds 36.0 g / 0.4 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 pounds 10.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 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 shear load sufficient to start the downward movement of the magnet downwards on a upright steel wall (assuming typical friction coefficient). This parameter depends on the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
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 pounds 3504.0 g / 34.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.34 kg / 5.15 pounds 2336.0 g / 22.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.17 kg / 2.57 pounds 1168.0 g / 11.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	5.84 kg / 12.87 pounds 5840.0 g / 57.3 N

When mounting a holder on a vertical plane (e.g., a board), it will maintain barely about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip cause that magnets move down faster than they pull off. Want to create a wall mount? Remember that the sliding force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will slide down under a noticeably lighter weight. Utilizing a rubberized coating can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
MW 18.9x10 / N38

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

A too thin steel is incapable of take in the full magnetic flux, which squanders power of the magnet. Should you mount a strong magnet to a thin surface, the field will penetrate right through and the holding will be smaller. To achieve full efficiency of this magnet's power, you need a suitably thick backing of steel. The saturation phenomenon means that on thin elements (e.g., appliance housings), the product holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Thermal resistance (stability) - resistance threshold
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 pounds 11680.0 g / 114.6 N	OK
40 °C	-2.2%	11.42 kg / 25.18 pounds 11423.0 g / 112.1 N	OK
60 °C	-4.4%	11.17 kg / 24.62 pounds 11166.1 g / 109.5 N	OK
80 °C	-6.6%	10.91 kg / 24.05 pounds 10909.1 g / 107.0 N
100 °C	-28.8%	8.32 kg / 18.33 pounds 8316.2 g / 81.6 N

Classic neodymiums irreversibly lose power after exceeding the maximum temperature. Watch out for overheating – heat can permanently demagnetize this product. With increasing heat, the magnet's capacity momentarily lowers. Do not use this magnet close to ovens exceeding its operating temperature limit. Too high temperature will cause irreversible degradation of magnetism.

*Important note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) risk losing magnetic properties sooner than long magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 18.9x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	35.05 kg / 77.28 pounds 5 600 Gs	5.26 kg / 11.59 pounds 5258 g / 51.6 N	N/A
1 mm	31.70 kg / 69.88 pounds 8 562 Gs	4.75 kg / 10.48 pounds 4754 g / 46.6 N	28.53 kg / 62.89 pounds ~0 Gs
2 mm	28.38 kg / 62.56 pounds 8 101 Gs	4.26 kg / 9.38 pounds 4256 g / 41.8 N	25.54 kg / 56.30 pounds ~0 Gs
3 mm	25.22 kg / 55.59 pounds 7 636 Gs	3.78 kg / 8.34 pounds 3782 g / 37.1 N	22.69 kg / 50.03 pounds ~0 Gs
5 mm	19.53 kg / 43.05 pounds 6 720 Gs	2.93 kg / 6.46 pounds 2929 g / 28.7 N	17.57 kg / 38.75 pounds ~0 Gs
10 mm	9.52 kg / 20.99 pounds 4 692 Gs	1.43 kg / 3.15 pounds 1428 g / 14.0 N	8.57 kg / 18.89 pounds ~0 Gs
20 mm	2.09 kg / 4.61 pounds 2 199 Gs	0.31 kg / 0.69 pounds 314 g / 3.1 N	1.88 kg / 4.15 pounds ~0 Gs
50 mm	0.06 kg / 0.13 pounds 372 Gs	0.01 kg / 0.02 pounds 9 g / 0.1 N	0.05 kg / 0.12 pounds ~0 Gs
60 mm	0.03 kg / 0.06 pounds 241 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs
70 mm	0.01 kg / 0.03 pounds 164 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
80 mm	0.01 kg / 0.01 pounds 116 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.01 pounds 86 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 65 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. The connection of two magnets generates a stronger field and a larger range of performance. Designing a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when attracting two neodymiums, the impact force is huge. The levitation is a bit weaker than the attraction, but still impressive.
*Flux density for N-N configuration drops to ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Note: Estimates apply to sliding force of two matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (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
Mechanical watch	20 Gs (2.0 mT)	6.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	5.0 cm
Remote	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

Powerful magnet radiation is a serious hazard to IT equipment as well as pacemakers. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field passes through tissues and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, car keys, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (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 very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a magnet released freely turns into a projectile. Striking energy can trigger coating fragments or painful pinches to skin. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Use safety goggles when handling with large magnets.

Table 9: Anti-corrosion coating 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)

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 (P_c)
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 pole surface. Essential parameter for generator designers as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
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%

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

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

*Note: On a vertical wall, the magnet retains merely approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Heat tolerance

*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) = 0.61

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

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

Measurement Calculator

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MW 55x25 / N38 - cylindrical magnet

154.21 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMP 97x40 [M8+M10] GW F300 Lina / N38 - search holder

370.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 7x1.5 / N38 - cylindrical magnet

0.369 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 8x4 / N38 - cylindrical magnet

0.701 ZŁ brutto / pcs

The offered product is an exceptionally strong cylinder magnet, made from durable NdFeB material, which, at dimensions of Ø18.9x10 mm, guarantees optimal power. The MW 18.9x10 / N38 model features a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 11.68 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced Hall effect sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 114.54 N with a weight of only 21.04 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. 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.

Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. 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 warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 18.9 mm and height 10 mm. 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 oxidation, 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. Such an arrangement is standard 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 through the diameter if your project requires it.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
They feature excellent resistance to magnetism drop due to external magnetic sources,
In other words, due to the shiny layer of nickel, the element looks attractive,
Neodymium magnets ensure maximum magnetic induction on a small surface, which increases force concentration,
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 freedom in designing and the capacity to customize to individual projects,
Huge importance in innovative solutions – they find application in hard drives, electric motors, precision medical tools, as well as modern systems.
Thanks to their power density, small magnets offer high operating force, in miniature format,

Weaknesses

Cons of neodymium magnets: application proposals

Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also raises their durability
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
We recommend a housing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complicated forms.
Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. Additionally, tiny parts of these magnets can complicate diagnosis medical after entering the body.
Due to expensive raw materials, their price is relatively high,

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

The lifting capacity listed is a result of laboratory testing executed under the following configuration:

with the contact of a yoke made of special test steel, ensuring full magnetic saturation
possessing a thickness of at least 10 mm to avoid saturation
with an ideally smooth touching surface
under conditions of no distance (metal-to-metal)
during pulling in a direction perpendicular to the mounting surface
at room temperature

Practical lifting capacity: influencing factors

In real-world applications, the real power is determined by a number of factors, presented from most significant:

Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Plate thickness – insufficiently thick plate does not accept the full field, causing part of the power to be escaped into the air.
Material composition – not every steel attracts identically. High carbon content worsen the attraction effect.
Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.

Safe handling of neodymium magnets

Powerful field

Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Hand protection

Watch your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Magnets are brittle

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Permanent damage

Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.

Life threat

Life threat: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Mechanical processing

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Cards and drives

Data protection: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, timepieces).

Adults only

Adult use only. Small elements can be swallowed, causing intestinal necrosis. Keep out of reach of kids and pets.

Keep away from electronics

A powerful magnetic field interferes with the functioning of compasses in phones and GPS navigation. Keep magnets close to a device to avoid damaging the sensors.

Nickel coating and allergies

Certain individuals have a sensitization to nickel, which is the common plating for neodymium magnets. Frequent touching can result in dermatitis. We suggest use safety gloves.

Danger! Learn more about risks in the article: Magnet Safety Guide.

MW 18.9x10 / N38 - cylindrical magnet

Technical details - MW 18.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - technical parameters

Table 1: Static pull force (force vs distance) - characteristics MW 18.9x10 / N38

Table 2: Sliding hold (wall) MW 18.9x10 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 18.9x10 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 18.9x10 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 18.9x10 / N38

Table 6: Two magnets (attraction) - field collision MW 18.9x10 / N38

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

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

Table 9: Anti-corrosion coating durability MW 18.9x10 / N38

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

Table 11: Physics of underwater searching MW 18.9x10 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Environmental data

Magnet pull force

Field Strength

See also proposals

MW 55x25 / N38 - cylindrical magnet

UMP 97x40 [M8+M10] GW F300 Lina / N38 - search holder

MW 7x1.5 / N38 - cylindrical magnet

MW 8x4 / N38 - cylindrical magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Weaknesses

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Practical lifting capacity: influencing factors

Safe handling of neodymium magnets

Powerful field

Hand protection

Magnets are brittle

Permanent damage

Life threat

Mechanical processing

Cards and drives

Adults only

Keep away from electronics

Nickel coating and allergies

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 18.9x10 / N38

Table 2: Sliding hold (wall)
MW 18.9x10 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 18.9x10 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 18.9x10 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 18.9x10 / N38

Table 6: Two magnets (attraction) - field collision
MW 18.9x10 / N38

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

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

Table 9: Anti-corrosion coating durability
MW 18.9x10 / N38

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

Table 11: Physics of underwater searching
MW 18.9x10 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.