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MW 50x20 / 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 010080

GTIN/EAN: 5906301810797

Diameter Ø

50 mm [±0,1 mm]

Height

20 mm [±0,1 mm]

Weight

294.52 g

Magnetization Direction

↑ axial

Load capacity

70.10 kg / 687.66 N

Magnetic Induction

387.23 mT / 3872 Gs

Coating

[NiCuNi] Nickel

check properties »

106.96 ZŁ with VAT / pcs + price for transport

86.96 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 50x20 / N38 - cylindrical magnet

Specification / characteristics - MW 50x20 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010080
GTIN/EAN	5906301810797
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	50 mm [±0,1 mm]
Height	20 mm [±0,1 mm]
Weight	294.52 g
Magnetization Direction	↑ axial
Load capacity ~ ?	70.10 kg / 687.66 N
Magnetic Induction ~ ?	387.23 mT / 3872 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 50x20 / 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 product - technical parameters

Presented information constitute the outcome of a physical calculation. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Actual performance might slightly deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static pull force (force vs gap) - power drop
MW 50x20 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3872 Gs 387.2 mT	70.10 kg / 154.54 LBS 70100.0 g / 687.7 N	critical level
1 mm	3740 Gs 374.0 mT	65.41 kg / 144.20 LBS 65408.0 g / 641.7 N	critical level
2 mm	3601 Gs 360.1 mT	60.65 kg / 133.72 LBS 60652.7 g / 595.0 N	critical level
3 mm	3459 Gs 345.9 mT	55.95 kg / 123.35 LBS 55950.5 g / 548.9 N	critical level
5 mm	3168 Gs 316.8 mT	46.94 kg / 103.47 LBS 46935.3 g / 460.4 N	critical level
10 mm	2460 Gs 246.0 mT	28.31 kg / 62.40 LBS 28306.3 g / 277.7 N	critical level
15 mm	1855 Gs 185.5 mT	16.10 kg / 35.48 LBS 16095.6 g / 157.9 N	critical level
20 mm	1384 Gs 138.4 mT	8.96 kg / 19.76 LBS 8963.2 g / 87.9 N	warning
30 mm	782 Gs 78.2 mT	2.86 kg / 6.31 LBS 2863.1 g / 28.1 N	warning
50 mm	293 Gs 29.3 mT	0.40 kg / 0.89 LBS 402.4 g / 3.9 N	safe

Grip strength decreases drastically per each millimeter of spacing. Remember that every additional insulation layer (e.g., dirt, paint, dust) strongly weakens the grip. Magnetic products operate optimally at the point of direct contact; distance drastically cuts the power. See how flashily the pull force drop, when the product does not adhere tightly to the steel surface. When designing the mounting, discard unnecessary gaps.

Table 2: Vertical hold (wall)
MW 50x20 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	14.02 kg / 30.91 LBS 14020.0 g / 137.5 N
1 mm	Stal (~0.2)	13.08 kg / 28.84 LBS 13082.0 g / 128.3 N
2 mm	Stal (~0.2)	12.13 kg / 26.74 LBS 12130.0 g / 119.0 N
3 mm	Stal (~0.2)	11.19 kg / 24.67 LBS 11190.0 g / 109.8 N
5 mm	Stal (~0.2)	9.39 kg / 20.70 LBS 9388.0 g / 92.1 N
10 mm	Stal (~0.2)	5.66 kg / 12.48 LBS 5662.0 g / 55.5 N
15 mm	Stal (~0.2)	3.22 kg / 7.10 LBS 3220.0 g / 31.6 N
20 mm	Stal (~0.2)	1.79 kg / 3.95 LBS 1792.0 g / 17.6 N
30 mm	Stal (~0.2)	0.57 kg / 1.26 LBS 572.0 g / 5.6 N
50 mm	Stal (~0.2)	0.08 kg / 0.18 LBS 80.0 g / 0.8 N

The table below defines the estimated force necessary to initiate the sliding of the magnet vertically along a upright metal surface (considering standard friction). The holding force is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MW 50x20 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	21.03 kg / 46.36 LBS 21030.0 g / 206.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	14.02 kg / 30.91 LBS 14020.0 g / 137.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	7.01 kg / 15.45 LBS 7010.0 g / 68.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	35.05 kg / 77.27 LBS 35050.0 g / 343.8 N

When mounting a holder on a upright plane (e.g., a car body), it you can count on only approx. 1/5 of its nominal power. Gravitational force and a low friction coefficient influence the fact that products slide down easier than they pull off. Want to create a vertical fastening? Note that the sliding force is noticeably lower than the maximum static pull force. On a smooth steel, the holder will give way down under a significantly smaller weight. Utilizing a rubberized coating can drastically improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 50x20 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.34 kg / 5.15 LBS 2336.7 g / 22.9 N
1 mm	8%	5.84 kg / 12.88 LBS 5841.7 g / 57.3 N
2 mm	17%	11.68 kg / 25.76 LBS 11683.3 g / 114.6 N
3 mm	25%	17.53 kg / 38.64 LBS 17525.0 g / 171.9 N
5 mm	42%	29.21 kg / 64.39 LBS 29208.3 g / 286.5 N
10 mm	83%	58.42 kg / 128.79 LBS 58416.7 g / 573.1 N
11 mm	92%	64.26 kg / 141.67 LBS 64258.3 g / 630.4 N
12 mm	100%	70.10 kg / 154.54 LBS 70100.0 g / 687.7 N

A thin sheet is unable to conduct the full magnetic flux, which weakens actual performance of the holder. If you install a neodymium to a weak sheet, the flux will penetrate right through and the attraction force will be weaker. To utilize full efficiency of this neodymium's potential, you need a suitably thick element of steel. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the holder holds weaker. We suggest choosing the steel dimension according to the table below.

Table 5: Thermal stability (stability) - power drop
MW 50x20 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	70.10 kg / 154.54 LBS 70100.0 g / 687.7 N	OK
40 °C	-2.2%	68.56 kg / 151.14 LBS 68557.8 g / 672.6 N	OK
60 °C	-4.4%	67.02 kg / 147.74 LBS 67015.6 g / 657.4 N
80 °C	-6.6%	65.47 kg / 144.34 LBS 65473.4 g / 642.3 N
100 °C	-28.8%	49.91 kg / 110.04 LBS 49911.2 g / 489.6 N

Standard neodymium magnets irreversibly lose strength past the thermal threshold. Watch out for overheating – high temperature can permanently destroy this product. As the temperature rises, the neodymium's force momentarily lowers. Avoid using this magnet close to heaters exceeding its safe range. Ignoring the limit will result in permanent loss of magnetic properties.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field range
MW 50x20 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	181.46 kg / 400.06 LBS 5 255 Gs	27.22 kg / 60.01 LBS 27220 g / 267.0 N	N/A
1 mm	175.47 kg / 386.84 LBS 7 615 Gs	26.32 kg / 58.03 LBS 26321 g / 258.2 N	157.92 kg / 348.16 LBS ~0 Gs
2 mm	169.32 kg / 373.28 LBS 7 480 Gs	25.40 kg / 55.99 LBS 25398 g / 249.2 N	152.39 kg / 335.96 LBS ~0 Gs
3 mm	163.16 kg / 359.70 LBS 7 343 Gs	24.47 kg / 53.96 LBS 24474 g / 240.1 N	146.84 kg / 323.73 LBS ~0 Gs
5 mm	150.90 kg / 332.67 LBS 7 061 Gs	22.63 kg / 49.90 LBS 22634 g / 222.0 N	135.81 kg / 299.40 LBS ~0 Gs
10 mm	121.50 kg / 267.86 LBS 6 336 Gs	18.22 kg / 40.18 LBS 18225 g / 178.8 N	109.35 kg / 241.07 LBS ~0 Gs
20 mm	73.28 kg / 161.54 LBS 4 921 Gs	10.99 kg / 24.23 LBS 10991 g / 107.8 N	65.95 kg / 145.39 LBS ~0 Gs
50 mm	12.99 kg / 28.63 LBS 2 071 Gs	1.95 kg / 4.29 LBS 1948 g / 19.1 N	11.69 kg / 25.76 LBS ~0 Gs
60 mm	7.41 kg / 16.34 LBS 1 565 Gs	1.11 kg / 2.45 LBS 1112 g / 10.9 N	6.67 kg / 14.71 LBS ~0 Gs
70 mm	4.35 kg / 9.58 LBS 1 198 Gs	0.65 kg / 1.44 LBS 652 g / 6.4 N	3.91 kg / 8.62 LBS ~0 Gs
80 mm	2.62 kg / 5.78 LBS 931 Gs	0.39 kg / 0.87 LBS 393 g / 3.9 N	2.36 kg / 5.20 LBS ~0 Gs
90 mm	1.63 kg / 3.59 LBS 734 Gs	0.24 kg / 0.54 LBS 245 g / 2.4 N	1.47 kg / 3.23 LBS ~0 Gs
100 mm	1.04 kg / 2.30 LBS 587 Gs	0.16 kg / 0.34 LBS 156 g / 1.5 N	0.94 kg / 2.07 LBS ~0 Gs

Two strong neodymiums attract each other from a wider radius than a magnet and steel setup. The connection of magnet-to-magnet produces a massive flux and a larger range of performance. Want to build a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the collision energy is huge. The repulsion force is slightly lower than the attraction, but still significant.
*Flux density between like poles drops to ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Note: Results demonstrate sliding force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 50x20 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	24.0 cm
Hearing aid	10 Gs (1.0 mT)	19.0 cm
Mechanical watch	20 Gs (2.0 mT)	15.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	11.5 cm
Car key	50 Gs (5.0 mT)	10.5 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Powerful magnet radiation poses a large risk to IT equipment as well as medical implants. These magnets produce a flux that disrupts operation of digital equipment. Be aware: the unseen radiation penetrates the body and housings. Increased vigilance must be exercised by people with hearing aids and insulin pumps. The risk also applies to: mechanical watches, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MW 50x20 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	19.09 km/h (5.30 m/s)	4.14 J
30 mm	27.63 km/h (7.67 m/s)	8.67 J
50 mm	34.92 km/h (9.70 m/s)	13.85 J
100 mm	49.21 km/h (13.67 m/s)	27.51 J

Magnetic elements are very brittle – a strong collision with metal risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can trigger coating fragments or injury to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A collision at high speed means shattering of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Corrosion resistance
MW 50x20 / 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: Electrical data (Flux)
MW 50x20 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	78 540 Mx	785.4 µWb
P_c Coefficient	0.50	Low (Flat)

Total magnetic flux emitted by the pole surface. Essential parameter when building generators and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 50x20 / N38

Environment	Effective steel pull	Effect
Air (land)	70.10 kg	Standard
Water (riverbed)	80.26 kg (+10.16 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Plate thickness effect

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.50

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

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: 010080-2026

Magnet Unit Converter

Force (pull)

Kilograms (kg)

Force in lbs

Magnetic Field

Gauss (Gs)

Tesla (T)

Put your value in a single field to see the conversion for the other units right away.

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MW 25x2.5 / N38 - cylindrical magnet

3.95 ZŁ brutto / pcs

This product is an exceptionally strong cylindrical magnet, manufactured from advanced NdFeB material, which, at dimensions of Ø50x20 mm, guarantees the highest energy density. The MW 50x20 / N38 component is characterized by a tolerance 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. 70.10 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 687.66 N with a weight of only 294.52 g, this rod 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., 50.1 mm) using two-component 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.

Magnets NdFeB grade N38 are suitable for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø50x20), 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 Ø50x20 mm, which, at a weight of 294.52 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 70.10 kg (force ~687.66 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface 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 50 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 diametrically if your project requires it.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Pros

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

They do not lose power, even during around 10 years – the reduction in strength is only ~1% (according to tests),
Magnets perfectly protect themselves against demagnetization caused by external fields,
A magnet with a shiny silver surface has an effective appearance,
The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
Possibility of precise machining and adjusting to atypical requirements,
Universal use in high-tech industry – they are used in hard drives, drive modules, advanced medical instruments, as well as other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which makes them useful in miniature devices

Cons

Drawbacks and weaknesses of neodymium magnets: tips and applications.

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
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 very resistant to heat
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of making threads in the magnet and complicated shapes - recommended is casing - mounting mechanism.
Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Additionally, small components of these products can disrupt the diagnostic process medical in case of swallowing.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Information about lifting capacity was determined for the most favorable conditions, taking into account:

with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
with a cross-section minimum 10 mm
characterized by lack of roughness
with direct contact (without impurities)
during detachment in a direction vertical to the mounting surface
at standard ambient temperature

Practical aspects of lifting capacity – factors

Effective lifting capacity is affected by specific conditions, such as (from priority):

Distance – existence of any layer (paint, dirt, gap) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
Angle of force application – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
Plate material – low-carbon steel gives the best results. Alloy steels lower magnetic permeability and lifting capacity.
Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity was measured by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the load capacity.

Safety rules for work with NdFeB magnets

Combustion hazard

Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Implant safety

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.

Safe distance

Powerful magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Heat sensitivity

Do not overheat. NdFeB magnets are susceptible to heat. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Shattering risk

Protect your eyes. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.

Hand protection

Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Skin irritation risks

Certain individuals suffer from a contact allergy to nickel, which is the common plating for NdFeB magnets. Frequent touching may cause a rash. We strongly advise wear safety gloves.

Safe operation

Use magnets with awareness. Their huge power can shock even experienced users. Plan your moves and respect their power.

Choking Hazard

These products are not toys. Accidental ingestion of several magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates urgent medical intervention.

Keep away from electronics

An intense magnetic field disrupts the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a device to avoid breaking the sensors.

Security! Learn more about hazards in the article: Safety of working with magnets.

MW 50x20 / N38 - cylindrical magnet

Technical of the product - MW 50x20 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - technical parameters

Table 1: Static pull force (force vs gap) - power drop MW 50x20 / N38

Table 2: Vertical hold (wall) MW 50x20 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 50x20 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 50x20 / N38

Table 5: Thermal stability (stability) - power drop MW 50x20 / N38

Table 6: Two magnets (attraction) - field range MW 50x20 / N38

Table 7: Hazards (implants) - precautionary measures MW 50x20 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 50x20 / N38

Table 9: Corrosion resistance MW 50x20 / N38

Table 10: Electrical data (Flux) MW 50x20 / N38

Table 11: Submerged application MW 50x20 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Power loss vs temp

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Field

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MW 25x2.5 / N38 - cylindrical magnet

Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Cons

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Practical aspects of lifting capacity – factors

Safety rules for work with NdFeB magnets

Combustion hazard

Implant safety

Safe distance

Heat sensitivity

Shattering risk

Hand protection

Skin irritation risks

Safe operation

Choking Hazard

Keep away from electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - power drop
MW 50x20 / N38

Table 2: Vertical hold (wall)
MW 50x20 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 50x20 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 50x20 / N38

Table 5: Thermal stability (stability) - power drop
MW 50x20 / N38

Table 6: Two magnets (attraction) - field range
MW 50x20 / N38

Table 7: Hazards (implants) - precautionary measures
MW 50x20 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 50x20 / N38

Table 9: Corrosion resistance
MW 50x20 / N38

Table 10: Electrical data (Flux)
MW 50x20 / N38

Table 11: Submerged application
MW 50x20 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.