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MW 19x4 / 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 010038

GTIN/EAN: 5906301810377

Diameter Ø

19 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

8.51 g

Magnetization Direction

↑ axial

Load capacity

4.96 kg / 48.62 N

Magnetic Induction

240.51 mT / 2405 Gs

Coating

[Zn] Zinc

check parameters »

4.80 ZŁ with VAT / pcs + price for transport

3.90 ZŁ net + 23% VAT / pcs

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Technical - MW 19x4 / N38 - cylindrical magnet

Specification / characteristics - MW 19x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010038
GTIN/EAN	5906301810377
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	19 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	8.51 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.96 kg / 48.62 N
Magnetic Induction ~ ?	240.51 mT / 2405 Gs
Coating	[Zn] Zinc
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 19x4 / 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

Technical simulation of the magnet - technical parameters

The following data constitute the result of a physical simulation. Values were calculated on models for the class Nd₂Fe₁₄B. Real-world parameters may deviate from the simulation results. Use these calculations as a reference point when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MW 19x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2405 Gs 240.5 mT	4.96 kg / 10.93 lbs 4960.0 g / 48.7 N	warning
1 mm	2239 Gs 223.9 mT	4.30 kg / 9.48 lbs 4299.0 g / 42.2 N	warning
2 mm	2033 Gs 203.3 mT	3.55 kg / 7.82 lbs 3547.4 g / 34.8 N	warning
3 mm	1811 Gs 181.1 mT	2.81 kg / 6.20 lbs 2813.0 g / 27.6 N	warning
5 mm	1376 Gs 137.6 mT	1.63 kg / 3.58 lbs 1625.2 g / 15.9 N	safe
10 mm	635 Gs 63.5 mT	0.35 kg / 0.76 lbs 346.3 g / 3.4 N	safe
15 mm	308 Gs 30.8 mT	0.08 kg / 0.18 lbs 81.2 g / 0.8 N	safe
20 mm	164 Gs 16.4 mT	0.02 kg / 0.05 lbs 23.2 g / 0.2 N	safe
30 mm	61 Gs 6.1 mT	0.00 kg / 0.01 lbs 3.1 g / 0.0 N	safe
50 mm	15 Gs 1.5 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	safe

Magnetic force decreases sharply with every mm of spacing. Note that even the smallest gap (e.g., contamination, varnish, rust) noticeably diminishes the holding power. Magnetic products hold most effectively at the point of direct contact; air break weakens the force. Observe how rapidly the pull force drop, when the magnet does not adhere directly to the metal substrate. When planning the assembly, discard unnecessary gaps.

Table 2: Shear capacity (vertical surface)
MW 19x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.99 kg / 2.19 lbs 992.0 g / 9.7 N
1 mm	Stal (~0.2)	0.86 kg / 1.90 lbs 860.0 g / 8.4 N
2 mm	Stal (~0.2)	0.71 kg / 1.57 lbs 710.0 g / 7.0 N
3 mm	Stal (~0.2)	0.56 kg / 1.24 lbs 562.0 g / 5.5 N
5 mm	Stal (~0.2)	0.33 kg / 0.72 lbs 326.0 g / 3.2 N
10 mm	Stal (~0.2)	0.07 kg / 0.15 lbs 70.0 g / 0.7 N
15 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 16.0 g / 0.2 N
20 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The table below shows the approximate shear load sufficient to start the sliding of the magnet down against a upright steel plate (assuming standard friction). This parameter is relative to the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 19x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.49 kg / 3.28 lbs 1488.0 g / 14.6 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.99 kg / 2.19 lbs 992.0 g / 9.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.50 kg / 1.09 lbs 496.0 g / 4.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.48 kg / 5.47 lbs 2480.0 g / 24.3 N

When placing a magnet on a upright wall (e.g., a car body), it will only hold barely about 1/5 of its nominal power. Gravitational force and a low friction coefficient influence the fact that holders slide down faster than they pull off. Want to create a wall mount? Remember that the shear force is much weaker than the perpendicular breakaway force. On a slippery surface, the element will slip down under a much lighter cargo. Application of an anti-slip layer can effectively raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 19x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.50 kg / 1.09 lbs 496.0 g / 4.9 N
1 mm	25%	1.24 kg / 2.73 lbs 1240.0 g / 12.2 N
2 mm	50%	2.48 kg / 5.47 lbs 2480.0 g / 24.3 N
3 mm	75%	3.72 kg / 8.20 lbs 3720.0 g / 36.5 N
5 mm	100%	4.96 kg / 10.93 lbs 4960.0 g / 48.7 N
10 mm	100%	4.96 kg / 10.93 lbs 4960.0 g / 48.7 N
11 mm	100%	4.96 kg / 10.93 lbs 4960.0 g / 48.7 N
12 mm	100%	4.96 kg / 10.93 lbs 4960.0 g / 48.7 N

A thin metal plate is incapable of conduct the entire magnetic field, which weakens actual performance of the magnet. Should you attach a powerful product to a too thin substrate, the magnetism will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's potential, you require a sufficiently solid element of steel. The saturation phenomenon means that on delicate walls (e.g., appliance housings), the magnet works worse. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MW 19x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.96 kg / 10.93 lbs 4960.0 g / 48.7 N	OK
40 °C	-2.2%	4.85 kg / 10.69 lbs 4850.9 g / 47.6 N	OK
60 °C	-4.4%	4.74 kg / 10.45 lbs 4741.8 g / 46.5 N
80 °C	-6.6%	4.63 kg / 10.21 lbs 4632.6 g / 45.4 N
100 °C	-28.8%	3.53 kg / 7.79 lbs 3531.5 g / 34.6 N

Classic neodymiums irreversibly lose power past the thermal threshold. Avoid high temperatures – heat can irreversibly demagnetize this magnet. As the temperature rises, the magnet's power briefly decreases. Do not use this product near heat sources higher than its operating temperature limit. Exceeding the critical threshold will lead to destruction of magnetism.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress compared to rod magnets. Red status in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 19x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	10.11 kg / 22.28 lbs 3 990 Gs	1.52 kg / 3.34 lbs 1516 g / 14.9 N	N/A
1 mm	9.48 kg / 20.89 lbs 4 657 Gs	1.42 kg / 3.13 lbs 1421 g / 13.9 N	8.53 kg / 18.80 lbs ~0 Gs
2 mm	8.76 kg / 19.31 lbs 4 477 Gs	1.31 kg / 2.90 lbs 1314 g / 12.9 N	7.88 kg / 17.38 lbs ~0 Gs
3 mm	8.00 kg / 17.64 lbs 4 279 Gs	1.20 kg / 2.65 lbs 1200 g / 11.8 N	7.20 kg / 15.88 lbs ~0 Gs
5 mm	6.47 kg / 14.25 lbs 3 846 Gs	0.97 kg / 2.14 lbs 970 g / 9.5 N	5.82 kg / 12.83 lbs ~0 Gs
10 mm	3.31 kg / 7.30 lbs 2 753 Gs	0.50 kg / 1.10 lbs 497 g / 4.9 N	2.98 kg / 6.57 lbs ~0 Gs
20 mm	0.71 kg / 1.56 lbs 1 271 Gs	0.11 kg / 0.23 lbs 106 g / 1.0 N	0.64 kg / 1.40 lbs ~0 Gs
50 mm	0.02 kg / 0.04 lbs 193 Gs	0.00 kg / 0.01 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
60 mm	0.01 kg / 0.01 lbs 121 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.01 lbs 81 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 56 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 41 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 30 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a significantly greater distance than a neodymium and metal combination. The connection of magnet-to-magnet generates a stronger field and a further horizon of action. Want to build a powerful holder? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when attracting two neodymiums, the impact force is extreme. The levitation is a bit weaker than the attraction, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Attention: Estimates refer to shear force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - precautionary measures
MW 19x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	7.5 cm
Hearing aid	10 Gs (1.0 mT)	6.0 cm
Timepiece	20 Gs (2.0 mT)	5.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Remote	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.5 cm

Extremely neodym field poses a serious hazard to electronics and pacemakers. These magnets produce a field that disrupts operation of digital equipment. Be aware: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and drug dispensers. The risk also applies to: mechanical watches, car keys, 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
MW 19x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.39 km/h (7.05 m/s)	0.21 J
30 mm	42.19 km/h (11.72 m/s)	0.58 J
50 mm	54.44 km/h (15.12 m/s)	0.97 J
100 mm	76.99 km/h (21.39 m/s)	1.95 J

Neodymium magnets are prone to chipping – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can cause material chips or painful pinches to fingers. Be sure to control the product during mounting so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when working with large magnets.

Table 9: Corrosion resistance
MW 19x4 / N38

Technical parameter	Value / Description
Coating type	[Zn] Zinc
Layer structure	Zn (Zinc)
Layer thickness	8-15 µm
Salt spray test (SST) ?	48 h
Recommended environment	Indoors / Garage

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 19x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	7 831 Mx	78.3 µWb
P_c Coefficient	0.30	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 19x4 / N38

Environment	Effective steel pull	Effect
Air (land)	4.96 kg	Standard
Water (riverbed)	5.68 kg (+0.72 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains only approx. 20-30% of its nominal pull.

2. Steel saturation

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

3. Heat tolerance

*For N38 material, the safety limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.30

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.

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%

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: 010038-2026

Magnet Unit Converter

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Newtons (N)

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Insert a number in any box, and all other values will convert on the fly.

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200.00 ZŁ brutto / pcs

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861.00 ZŁ brutto / pcs

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SM 32x125 [2xM8] / N42 - magnetic separator

381.30 ZŁ brutto / pcs

The offered product is an exceptionally strong cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø19x4 mm, guarantees the highest energy density. The MW 19x4 / N38 component is characterized by an accuracy of ±0.1mm and professional build quality, making it an ideal solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 4.96 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 48.62 N with a weight of only 8.51 g, this rod is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 19.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need the strongest magnets in the same volume (Ø19x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 19 mm and height 4 mm. The key parameter here is the lifting capacity amounting to approximately 4.96 kg (force ~48.62 N), which, with such defined dimensions, proves the high grade of the NdFeB material. 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 19 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 through the diameter if your project requires it.

Pros and cons of neodymium magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (based on calculations),
They feature excellent resistance to magnetic field loss due to external magnetic sources,
In other words, due to the shiny surface of silver, the element gains visual value,
Magnets are distinguished by excellent magnetic induction on the outer layer,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Possibility of individual forming as well as optimizing to specific conditions,
Key role in high-tech industry – they are commonly used in hard drives, motor assemblies, precision medical tools, and technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
Limited possibility of producing nuts in the magnet and complex forms - preferred is casing - magnet mounting.
Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small components of these devices can complicate diagnosis medical after entering the body.
With budget limitations the cost of neodymium magnets is a challenge,

Lifting parameters

Magnetic strength at its maximum – what affects it?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:

with the use of a yoke made of special test steel, ensuring maximum field concentration
whose transverse dimension equals approx. 10 mm
with a plane free of scratches
without the slightest air gap between the magnet and steel
during detachment in a direction perpendicular to the mounting surface
at ambient temperature room level

Magnet lifting force in use – key factors

Please note that the application force will differ influenced by elements below, in order of importance:

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
Steel thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be wasted to the other side.
Material composition – different alloys attracts identically. Alloy additives worsen the attraction effect.
Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Thermal environment – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Safe handling of neodymium magnets

Maximum temperature

Avoid heat. Neodymium magnets are sensitive to heat. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Powerful field

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Danger to pacemakers

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

Fire warning

Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Cards and drives

Very strong magnetic fields can erase data on payment cards, HDDs, and storage devices. Keep a distance of at least 10 cm.

Metal Allergy

Studies show that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, avoid touching magnets with bare hands or choose versions in plastic housing.

Protective goggles

Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Choking Hazard

NdFeB magnets are not intended for children. Eating several magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates immediate surgery.

GPS Danger

Note: neodymium magnets generate a field that confuses precision electronics. Keep a safe distance from your phone, tablet, and GPS.

Serious injuries

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

Important! More info about risks in the article: Magnet Safety Guide.

MW 19x4 / N38 - cylindrical magnet

Technical - MW 19x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - technical parameters

Table 1: Static force (force vs gap) - interaction chart MW 19x4 / N38

Table 2: Shear capacity (vertical surface) MW 19x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 19x4 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 19x4 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 19x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 19x4 / N38

Table 7: Hazards (implants) - precautionary measures MW 19x4 / N38

Table 8: Impact energy (cracking risk) - collision effects MW 19x4 / N38

Table 9: Corrosion resistance MW 19x4 / N38

Table 10: Construction data (Flux) MW 19x4 / N38

Table 11: Submerged application MW 19x4 / N38

1. Wall mount (shear)

2. Steel saturation

3. Heat tolerance

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

Chemical composition

Environmental data

Force (pull)

Magnetic Field

See also proposals

MP 40x20x5 / N38 - ring magnet

UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 - search holder

MT 50x1.5x100000 - magnetic tape

SM 32x125 [2xM8] / N42 - magnetic separator

Pros and cons of neodymium magnets.

Benefits

Weaknesses

Lifting parameters

Magnetic strength at its maximum – what affects it?

Magnet lifting force in use – key factors

Safe handling of neodymium magnets

Maximum temperature

Powerful field

Danger to pacemakers

Fire warning

Cards and drives

Metal Allergy

Protective goggles

Choking Hazard

GPS Danger

Serious injuries

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MW 19x4 / N38

Table 2: Shear capacity (vertical surface)
MW 19x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 19x4 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 19x4 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 19x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 19x4 / N38

Table 7: Hazards (implants) - precautionary measures
MW 19x4 / N38

Table 8: Impact energy (cracking risk) - collision effects
MW 19x4 / N38

Table 9: Corrosion resistance
MW 19x4 / N38

Table 10: Construction data (Flux)
MW 19x4 / N38

Table 11: Submerged application
MW 19x4 / N38