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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

technical details »

4.80 ZŁ with VAT / pcs + price for transport

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Parameters and structure of a neodymium magnet can be verified on our online calculation tool.

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Technical parameters - 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

Physical simulation of the magnet - data

These values are the result of a mathematical simulation. Results were calculated on models for the material Nd₂Fe₁₄B. Actual parameters may deviate from the simulation results. Please consider these calculations as a supplementary guide during assembly planning.

Table 1: Static pull 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	strong
1 mm	2239 Gs 223.9 mT	4.30 kg / 9.48 LBS 4299.0 g / 42.2 N	strong
2 mm	2033 Gs 203.3 mT	3.55 kg / 7.82 LBS 3547.4 g / 34.8 N	strong
3 mm	1811 Gs 181.1 mT	2.81 kg / 6.20 LBS 2813.0 g / 27.6 N	strong
5 mm	1376 Gs 137.6 mT	1.63 kg / 3.58 LBS 1625.2 g / 15.9 N	low risk
10 mm	635 Gs 63.5 mT	0.35 kg / 0.76 LBS 346.3 g / 3.4 N	low risk
15 mm	308 Gs 30.8 mT	0.08 kg / 0.18 LBS 81.2 g / 0.8 N	low risk
20 mm	164 Gs 16.4 mT	0.02 kg / 0.05 LBS 23.2 g / 0.2 N	low risk
30 mm	61 Gs 6.1 mT	0.00 kg / 0.01 LBS 3.1 g / 0.0 N	low risk
50 mm	15 Gs 1.5 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	low risk

Magnetic force decreases drastically with every mm of gap. Remember that even a microscopic distance (e.g., contamination, paint, rust) significantly diminishes the holding power. Magnets operate optimally during direct contact; gap nullifies the power. Notice how rapidly the parameters drop, when the magnet does not touch directly to the metal substrate. When designing the assembly, avoid additional spacers.

Table 2: Sliding force (wall)
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 following data calculates the theoretical weight limit sufficient to initiate the shifting of the magnet downwards against a upright steel wall (considering typical friction). This value is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - 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 mounting a holder on a upright plane (e.g., a car body), it will only hold only approx. 20%-30% of its nominal power. Gravitational force and a low friction coefficient influence the fact that magnets slip faster than they pop off the substrate. Want to create a wall mount? Remember that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the element will give way down under a significantly smaller weight. Application of an anti-slip coating can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - power losses
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 sheet is not enough to conduct the full magnetic flux, which squanders power of the magnet. If you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the holding will be smaller. To squeeze full efficiency of this neodymium's potential, you need a suitably thick backing of metal. The saturation phenomenon means that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (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

Standard neodymium magnets lose power after exceeding the maximum temperature. Avoid high temperatures – excessive heat can permanently demagnetize this magnet. With increasing heat, the neodymium's power temporarily decreases. Refrain from using this magnet close to heaters exceeding its safe range. Exceeding the critical threshold will cause destruction of magnetism.

*Important note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field range
MW 19x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral 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 strong neodymiums attract each other from a wider radius than a magnet and sheet setup. The setup of two magnets generates a stronger field and a wider radius of action. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The levitation is slightly lower than the attraction, but still impressive.
*Field value between like poles reaches ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Important: Figures demonstrate shear force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

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

A strong magnetic field is a serious hazard to IT equipment as well as pacemakers. These magnets generate a field that disrupts operation of digital equipment. Be aware: the unseen radiation acts through matter and glass. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and screens. 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

NdFeB products are prone to chipping – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can destroy the magnet or dangerous crushing to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when handling with large magnets.

Table 9: Anti-corrosion coating durability
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

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: Electrical data (P_c)
MW 19x4 / N38

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

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

Table 11: Hydrostatics and buoyancy
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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. 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)

*Warning: On a vertical wall, the magnet retains merely a fraction of its nominal pull.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) significantly limits the holding force.

3. Heat tolerance

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

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

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

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.

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%

Sustainability

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

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UMC 42x7/4x9 / N38 - cylindrical magnetic holder

29.99 ZŁ brutto / pcs

This product is an incredibly powerful cylindrical magnet, composed of advanced NdFeB material, which, at dimensions of Ø19x4 mm, guarantees maximum efficiency. This specific item boasts a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 4.96 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 48.62 N with a weight of only 8.51 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in industry, specialized industrial adhesives are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets 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 (Ø19x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

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. 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 as well as weaknesses of rare earth magnets.

Benefits

Besides their immense magnetic power, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
They have excellent resistance to magnetic field loss as a result of external magnetic sources,
By applying a lustrous coating of silver, the element acquires an elegant look,
They show high magnetic induction at the operating surface, which affects their effectiveness,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to freedom in forming and the ability to adapt to complex applications,
Fundamental importance in innovative solutions – they serve a role in magnetic memories, electric drive systems, medical devices, also complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems

Cons

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only secures 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 very resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Due to limitations in creating nuts and complex shapes in magnets, we propose using casing - magnetic mount.
Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these devices are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

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

The declared magnet strength represents the limit force, recorded under ideal test conditions, meaning:

with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
possessing a thickness of min. 10 mm to ensure full flux closure
with an ground contact surface
with total lack of distance (without paint)
for force acting at a right angle (in the magnet axis)
at conditions approx. 20°C

Lifting capacity in practice – influencing factors

Holding efficiency is affected by working environment parameters, including (from most important):

Clearance – the presence of any layer (paint, tape, gap) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Metal type – not every steel reacts the same. Alloy additives worsen the attraction effect.
Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
Thermal conditions – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Warnings

Electronic hazard

Do not bring magnets close to a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.

Hand protection

Mind your fingers. Two large magnets will snap together instantly with a force of massive weight, destroying everything in their path. Be careful!

Do not drill into magnets

Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.

Medical interference

Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.

Safe operation

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

Skin irritation risks

A percentage of the population suffer from a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to an allergic reaction. It is best to wear protective gloves.

Swallowing risk

Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep away from kids and pets.

Permanent damage

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

Risk of cracking

NdFeB magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets will cause them cracking into shards.

Precision electronics

An intense magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Keep magnets close to a device to prevent damaging the sensors.

Danger! Want to know more? Read our article: Why are neodymium magnets dangerous?

MW 19x4 / N38 - cylindrical magnet

Technical parameters - MW 19x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the magnet - data

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

Table 2: Sliding force (wall) MW 19x4 / N38

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

Table 4: Material efficiency (substrate influence) - power losses MW 19x4 / N38

Table 5: Working in heat (stability) - resistance threshold MW 19x4 / N38

Table 6: Two magnets (attraction) - 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: Anti-corrosion coating durability MW 19x4 / N38

Table 10: Electrical data (Pc) MW 19x4 / N38

Table 11: Hydrostatics and buoyancy MW 19x4 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Sustainability

Pulling force

Magnetic Field

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UMC 42x7/4x9 / N38 - cylindrical magnetic holder

Strengths as well as weaknesses of rare earth magnets.

Benefits

Cons

Holding force characteristics

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

Lifting capacity in practice – influencing factors

Warnings

Electronic hazard

Hand protection

Do not drill into magnets

Medical interference

Safe operation

Skin irritation risks

Swallowing risk

Permanent damage

Risk of cracking

Precision electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding force (wall)
MW 19x4 / N38

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

Table 4: Material efficiency (substrate influence) - power losses
MW 19x4 / N38

Table 5: Working in heat (stability) - resistance threshold
MW 19x4 / N38

Table 6: Two magnets (attraction) - 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: Anti-corrosion coating durability
MW 19x4 / N38

Table 10: Electrical data (P_c)
MW 19x4 / N38

Table 11: Hydrostatics and buoyancy
MW 19x4 / N38