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MW 20x35 / 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 010043

GTIN/EAN: 5906301810421

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

35 mm [±0,1 mm]

Weight

82.47 g

Magnetization Direction

↑ axial

Load capacity

9.58 kg / 93.97 N

Magnetic Induction

595.77 mT / 5958 Gs

Coating

[NiCuNi] Nickel

product specifications »

49.52 ZŁ with VAT / pcs + price for transport

40.26 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - MW 20x35 / N38 - cylindrical magnet

Specification / characteristics - MW 20x35 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010043
GTIN/EAN	5906301810421
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	20 mm [±0,1 mm]
Height	35 mm [±0,1 mm]
Weight	82.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	9.58 kg / 93.97 N
Magnetic Induction ~ ?	595.77 mT / 5958 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x35 / 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 analysis of the product - technical parameters

Presented values constitute the outcome of a physical simulation. Values were calculated on models for the material Nd₂Fe₁₄B. Operational performance might slightly differ. Use these calculations as a supplementary guide for designers.

Table 1: Static force (force vs gap) - power drop
MW 20x35 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5955 Gs 595.5 mT	9.58 kg / 21.12 pounds 9580.0 g / 94.0 N	warning
1 mm	5357 Gs 535.7 mT	7.75 kg / 17.09 pounds 7751.3 g / 76.0 N	warning
2 mm	4769 Gs 476.9 mT	6.14 kg / 13.55 pounds 6144.2 g / 60.3 N	warning
3 mm	4214 Gs 421.4 mT	4.80 kg / 10.58 pounds 4797.3 g / 47.1 N	warning
5 mm	3242 Gs 324.2 mT	2.84 kg / 6.26 pounds 2839.3 g / 27.9 N	warning
10 mm	1668 Gs 166.8 mT	0.75 kg / 1.66 pounds 751.8 g / 7.4 N	weak grip
15 mm	921 Gs 92.1 mT	0.23 kg / 0.51 pounds 229.1 g / 2.2 N	weak grip
20 mm	555 Gs 55.5 mT	0.08 kg / 0.18 pounds 83.1 g / 0.8 N	weak grip
30 mm	246 Gs 24.6 mT	0.02 kg / 0.04 pounds 16.4 g / 0.2 N	weak grip
50 mm	78 Gs 7.8 mT	0.00 kg / 0.00 pounds 1.6 g / 0.0 N	weak grip

Pulling power weakens sharply with every mm of spacing. Note that every additional insulation layer (e.g., contamination, varnish, veneer) significantly weakens the grip. Magnets work most effectively in perfect adhesion; air break nullifies the force. Observe how rapidly the parameters fall, when the magnet does not adhere tightly to the steel surface. When calculating the arrangement, discard additional spacers.

Table 2: Sliding force (vertical surface)
MW 20x35 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.92 kg / 4.22 pounds 1916.0 g / 18.8 N
1 mm	Stal (~0.2)	1.55 kg / 3.42 pounds 1550.0 g / 15.2 N
2 mm	Stal (~0.2)	1.23 kg / 2.71 pounds 1228.0 g / 12.0 N
3 mm	Stal (~0.2)	0.96 kg / 2.12 pounds 960.0 g / 9.4 N
5 mm	Stal (~0.2)	0.57 kg / 1.25 pounds 568.0 g / 5.6 N
10 mm	Stal (~0.2)	0.15 kg / 0.33 pounds 150.0 g / 1.5 N
15 mm	Stal (~0.2)	0.05 kg / 0.10 pounds 46.0 g / 0.5 N
20 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 16.0 g / 0.2 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section shows the theoretical force required to cause the sliding of the magnet vertically on a upright steel plate (considering typical friction). This value is a function of the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 20x35 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.87 kg / 6.34 pounds 2874.0 g / 28.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.92 kg / 4.22 pounds 1916.0 g / 18.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.96 kg / 2.11 pounds 958.0 g / 9.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.79 kg / 10.56 pounds 4790.0 g / 47.0 N

When mounting a magnet on a vertical plane (e.g., a fridge), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravity and a low friction coefficient mean that products slide down easier than they detach. Planning a vertical fastening? Remember that the shear force is significantly lower than the maximum static pull force. On a slippery surface, the holder will slide down under a significantly smaller weight. Application of an anti-slip layer can significantly raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 20x35 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.96 kg / 2.11 pounds 958.0 g / 9.4 N
1 mm	25%	2.40 kg / 5.28 pounds 2395.0 g / 23.5 N
2 mm	50%	4.79 kg / 10.56 pounds 4790.0 g / 47.0 N
3 mm	75%	7.19 kg / 15.84 pounds 7185.0 g / 70.5 N
5 mm	100%	9.58 kg / 21.12 pounds 9580.0 g / 94.0 N
10 mm	100%	9.58 kg / 21.12 pounds 9580.0 g / 94.0 N
11 mm	100%	9.58 kg / 21.12 pounds 9580.0 g / 94.0 N
12 mm	100%	9.58 kg / 21.12 pounds 9580.0 g / 94.0 N

A thin sheet is incapable of absorb the entire magnetic field, which wastes potential of the magnet. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the holding will be smaller. To squeeze the maximum of this neodymium's potential, you need a suitably thick piece of steel. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the holder works worse. We advise picking the steel dimension according to the table below.

Table 5: Thermal resistance (stability) - resistance threshold
MW 20x35 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	9.58 kg / 21.12 pounds 9580.0 g / 94.0 N	OK
40 °C	-2.2%	9.37 kg / 20.66 pounds 9369.2 g / 91.9 N	OK
60 °C	-4.4%	9.16 kg / 20.19 pounds 9158.5 g / 89.8 N	OK
80 °C	-6.6%	8.95 kg / 19.73 pounds 8947.7 g / 87.8 N
100 °C	-28.8%	6.82 kg / 15.04 pounds 6821.0 g / 66.9 N

Standard neodymium magnets change their properties parameters above the temperature limit. Avoid high temperatures – heat can permanently demagnetize this product. With every degree above norm, the neodymium's power briefly drops. Refrain from using this product close to ovens higher than its safe range. Exceeding the critical threshold will lead to destruction of magnetism.

*Technical advisory: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low permeance coefficient) may lose charge permanently sooner than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 20x35 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	68.69 kg / 151.44 pounds 6 132 Gs	10.30 kg / 22.72 pounds 10304 g / 101.1 N	N/A
1 mm	62.01 kg / 136.70 pounds 11 316 Gs	9.30 kg / 20.50 pounds 9301 g / 91.2 N	55.81 kg / 123.03 pounds ~0 Gs
2 mm	55.58 kg / 122.53 pounds 10 714 Gs	8.34 kg / 18.38 pounds 8337 g / 81.8 N	50.02 kg / 110.28 pounds ~0 Gs
3 mm	49.59 kg / 109.32 pounds 10 120 Gs	7.44 kg / 16.40 pounds 7438 g / 73.0 N	44.63 kg / 98.39 pounds ~0 Gs
5 mm	38.99 kg / 85.96 pounds 8 974 Gs	5.85 kg / 12.89 pounds 5849 g / 57.4 N	35.09 kg / 77.37 pounds ~0 Gs
10 mm	20.36 kg / 44.88 pounds 6 484 Gs	3.05 kg / 6.73 pounds 3054 g / 30.0 N	18.32 kg / 40.40 pounds ~0 Gs
20 mm	5.39 kg / 11.88 pounds 3 337 Gs	0.81 kg / 1.78 pounds 809 g / 7.9 N	4.85 kg / 10.70 pounds ~0 Gs
50 mm	0.25 kg / 0.55 pounds 718 Gs	0.04 kg / 0.08 pounds 37 g / 0.4 N	0.22 kg / 0.50 pounds ~0 Gs
60 mm	0.12 kg / 0.26 pounds 492 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.23 pounds ~0 Gs
70 mm	0.06 kg / 0.13 pounds 352 Gs	0.01 kg / 0.02 pounds 9 g / 0.1 N	0.05 kg / 0.12 pounds ~0 Gs
80 mm	0.03 kg / 0.07 pounds 261 Gs	0.00 kg / 0.01 pounds 5 g / 0.0 N	0.03 kg / 0.07 pounds ~0 Gs
90 mm	0.02 kg / 0.04 pounds 200 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs
100 mm	0.01 kg / 0.03 pounds 156 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs

Two magnets attract each other from a significantly greater distance than a neodymium and metal combination. The connection of magnet-to-magnet creates a more powerful interaction and a larger range of performance. Want to build a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the pinch force is extreme. The repulsion force is slightly lower than the connection force, but still impressive.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
* Figures demonstrate shear force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - warnings
MW 20x35 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	15.0 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Timepiece	20 Gs (2.0 mT)	9.0 cm
Mobile device	40 Gs (4.0 mT)	7.0 cm
Car key	50 Gs (5.0 mT)	6.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Extremely neodym field poses a large risk to IT equipment as well as medical implants. These NdFeB products produce a flux that destroys function of digital equipment. Notice: the invisible magnetic field penetrates the body and housings. Special caution must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MW 20x35 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	11.39 km/h (3.16 m/s)	0.41 J
30 mm	18.85 km/h (5.24 m/s)	1.13 J
50 mm	24.31 km/h (6.75 m/s)	1.88 J
100 mm	34.37 km/h (9.55 m/s)	3.76 J

Neodymium magnets are delicate – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can trigger coating fragments or dangerous crushing to fingers. Always hold the magnet during installation so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Coating parameters (durability)
MW 20x35 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
MW 20x35 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	20 408 Mx	204.1 µWb
P_c Coefficient	1.16	High (Stable)

Flux value emitted by the pole surface. Key data for generator designers as well as sensors. P_c value determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 20x35 / N38

Environment	Effective steel pull	Effect
Air (land)	9.58 kg	Standard
Water (riverbed)	10.97 kg (+1.39 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. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Caution: On a vertical surface, the magnet holds only a fraction of its perpendicular strength.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) drastically limits 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) = 1.16

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 and environmental data

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%

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: 010043-2026

Measurement Calculator

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Kilograms (kg)

Force (N)

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Magnetic Induction

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MW 50x20 / N38 - cylindrical magnet

106.96 ZŁ brutto / pcs

The presented product is an extremely powerful cylinder magnet, composed of modern NdFeB material, which, with dimensions of Ø20x35 mm, guarantees optimal power. This specific item is characterized by a tolerance of ±0.1mm and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 9.58 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 93.97 N with a weight of only 82.47 g, this rod is indispensable in electronics and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 20.1 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 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 (Ø20x35), 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 20 mm and height 35 mm. The key parameter here is the lifting capacity amounting to approximately 9.58 kg (force ~93.97 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 35 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 as well as cons of neodymium magnets.

Advantages

Apart from their consistent holding force, neodymium magnets have these key benefits:

Their power remains stable, and after approximately 10 years it decreases only by ~1% (theoretically),
Neodymium magnets are distinguished by highly resistant to magnetic field loss caused by magnetic disturbances,
In other words, due to the aesthetic layer of silver, the element gains visual value,
They are known for high magnetic induction at the operating surface, which increases their power,
Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures approaching 230°C and above...
Thanks to modularity in forming and the ability to customize to specific needs,
Key role in future technologies – they are commonly used in data components, brushless drives, diagnostic systems, as well as other advanced devices.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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
They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited possibility of creating nuts in the magnet and complex forms - preferred is casing - magnetic holder.
Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Furthermore, small elements of these products are able to complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

The declared magnet strength concerns the limit force, measured under laboratory conditions, namely:

with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
possessing a massiveness of at least 10 mm to avoid saturation
with an ground contact surface
with direct contact (without coatings)
under vertical application of breakaway force (90-degree angle)
in temp. approx. 20°C

Practical aspects of lifting capacity – factors

Bear in mind that the working load will differ subject to the following factors, in order of importance:

Clearance – existence of foreign body (rust, dirt, gap) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
Load vector – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick plate causes magnetic saturation, causing part of the flux to be lost to the other side.
Plate material – mild steel gives the best results. Higher carbon content lower magnetic properties and lifting capacity.
Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Magnetic media

Avoid bringing magnets near a purse, computer, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.

Handling rules

Use magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.

Choking Hazard

These products are not suitable for play. Eating a few magnets can lead to them pinching intestinal walls, which constitutes a severe health hazard and necessitates urgent medical intervention.

Bone fractures

Large magnets can smash fingers instantly. Never place your hand betwixt two attracting surfaces.

GPS Danger

A strong magnetic field interferes with the operation of compasses in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

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.

Sensitization to coating

Some people experience a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Frequent touching might lead to a rash. We suggest wear protective gloves.

Operating temperature

Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. The loss of strength is permanent.

Warning for heart patients

For implant holders: Strong magnetic fields affect electronics. Keep at least 30 cm distance or ask another person to work with the magnets.

Material brittleness

NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Clashing of two magnets leads to them breaking into shards.

Security! Want to know more? Read our article: Are neodymium magnets dangerous?

MW 20x35 / N38 - cylindrical magnet

Technical parameters of the product - MW 20x35 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - technical parameters

Table 1: Static force (force vs gap) - power drop MW 20x35 / N38

Table 2: Sliding force (vertical surface) MW 20x35 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 20x35 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 20x35 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 20x35 / N38

Table 6: Two magnets (attraction) - forces in the system MW 20x35 / N38

Table 7: Safety (HSE) (electronics) - warnings MW 20x35 / N38

Table 8: Impact energy (cracking risk) - warning MW 20x35 / N38

Table 9: Coating parameters (durability) MW 20x35 / N38

Table 10: Construction data (Pc) MW 20x35 / N38

Table 11: Underwater work (magnet fishing) MW 20x35 / N38

1. Shear force

2. Steel thickness impact

3. Power loss vs temp

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Induction

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MW 50x20 / N38 - cylindrical magnet

Pros as well as cons of neodymium magnets.

Advantages

Disadvantages

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

Practical aspects of lifting capacity – factors

Safety rules for work with neodymium magnets

Magnetic media

Handling rules

Choking Hazard

Bone fractures

GPS Danger

Mechanical processing

Sensitization to coating

Operating temperature

Warning for heart patients

Material brittleness

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 20x35 / N38

Table 2: Sliding force (vertical surface)
MW 20x35 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 20x35 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 20x35 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 20x35 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 20x35 / N38

Table 7: Safety (HSE) (electronics) - warnings
MW 20x35 / N38

Table 8: Impact energy (cracking risk) - warning
MW 20x35 / N38

Table 9: Coating parameters (durability)
MW 20x35 / N38

Table 10: Construction data (P_c)
MW 20x35 / N38

Table 11: Underwater work (magnet fishing)
MW 20x35 / N38