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MW 20x5 / 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 010044

GTIN/EAN: 5906301810438

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

11.78 g

Magnetization Direction

↑ axial

Load capacity

6.93 kg / 67.95 N

Magnetic Induction

277.16 mT / 2772 Gs

Coating

[NiCuNi] Nickel

check technical data »

5.56 ZŁ with VAT / pcs + price for transport

4.52 ZŁ net + 23% VAT / pcs

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Technical details - MW 20x5 / N38 - cylindrical magnet

Specification / characteristics - MW 20x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010044
GTIN/EAN	5906301810438
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	5 mm [±0,1 mm]
Weight	11.78 g
Magnetization Direction	↑ axial
Load capacity ~ ?	6.93 kg / 67.95 N
Magnetic Induction ~ ?	277.16 mT / 2772 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x5 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Engineering analysis of the magnet - technical parameters

Presented data are the outcome of a engineering simulation. Results rely on models for the class Nd₂Fe₁₄B. Operational conditions may differ from theoretical values. Please consider these calculations as a supplementary guide for designers.

Table 1: Static pull force (force vs distance) - interaction chart
MW 20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2771 Gs 277.1 mT	6.93 kg / 15.28 LBS 6930.0 g / 68.0 N	warning
1 mm	2573 Gs 257.3 mT	5.97 kg / 13.17 LBS 5975.0 g / 58.6 N	warning
2 mm	2340 Gs 234.0 mT	4.94 kg / 10.89 LBS 4940.1 g / 48.5 N	warning
3 mm	2092 Gs 209.2 mT	3.95 kg / 8.70 LBS 3948.3 g / 38.7 N	warning
5 mm	1611 Gs 161.1 mT	2.34 kg / 5.17 LBS 2343.4 g / 23.0 N	warning
10 mm	775 Gs 77.5 mT	0.54 kg / 1.19 LBS 541.6 g / 5.3 N	low risk
15 mm	387 Gs 38.7 mT	0.13 kg / 0.30 LBS 135.0 g / 1.3 N	low risk
20 mm	211 Gs 21.1 mT	0.04 kg / 0.09 LBS 40.2 g / 0.4 N	low risk
30 mm	80 Gs 8.0 mT	0.01 kg / 0.01 LBS 5.7 g / 0.1 N	low risk
50 mm	20 Gs 2.0 mT	0.00 kg / 0.00 LBS 0.4 g / 0.0 N	low risk

Magnetic force weakens sharply with every subsequent millimeter of gap. Remember that even a microscopic distance (e.g., dirt, varnish, veneer) strongly diminishes the holding power. Magnetic products operate most effectively at the point of direct contact; air break weakens the force. Observe how quickly the pull force plummet, when the magnet does not adhere directly to the metal substrate. When planning the assembly, discard unnecessary gaps.

Table 2: Slippage capacity (vertical surface)
MW 20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.39 kg / 3.06 LBS 1386.0 g / 13.6 N
1 mm	Stal (~0.2)	1.19 kg / 2.63 LBS 1194.0 g / 11.7 N
2 mm	Stal (~0.2)	0.99 kg / 2.18 LBS 988.0 g / 9.7 N
3 mm	Stal (~0.2)	0.79 kg / 1.74 LBS 790.0 g / 7.7 N
5 mm	Stal (~0.2)	0.47 kg / 1.03 LBS 468.0 g / 4.6 N
10 mm	Stal (~0.2)	0.11 kg / 0.24 LBS 108.0 g / 1.1 N
15 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 26.0 g / 0.3 N
20 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 8.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 force required to start the downward movement of the magnet downwards on a vertical metal surface (assuming standard friction coefficient). This parameter varies with the separation distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.08 kg / 4.58 LBS 2079.0 g / 20.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.39 kg / 3.06 LBS 1386.0 g / 13.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.69 kg / 1.53 LBS 693.0 g / 6.8 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.47 kg / 7.64 LBS 3465.0 g / 34.0 N

When hanging a magnet on a vertical surface (e.g., a car body), it will only hold only about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip cause that holders slip faster than they pop off the substrate. Want to create a hanger? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will give way down under a noticeably lighter load. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.69 kg / 1.53 LBS 693.0 g / 6.8 N
1 mm	25%	1.73 kg / 3.82 LBS 1732.5 g / 17.0 N
2 mm	50%	3.47 kg / 7.64 LBS 3465.0 g / 34.0 N
3 mm	75%	5.20 kg / 11.46 LBS 5197.5 g / 51.0 N
5 mm	100%	6.93 kg / 15.28 LBS 6930.0 g / 68.0 N
10 mm	100%	6.93 kg / 15.28 LBS 6930.0 g / 68.0 N
11 mm	100%	6.93 kg / 15.28 LBS 6930.0 g / 68.0 N
12 mm	100%	6.93 kg / 15.28 LBS 6930.0 g / 68.0 N

A too thin steel is unable to take in the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a weak sheet, the flux will pass right through and the attraction force will be weaker. To achieve 100% of this magnet's potential, you require a sufficiently solid backing of metal. The material oversaturation means that on sheet metal structures (e.g., thin profiles), the holder works worse. We recommend selecting the steel cross-section based on the following data.

Table 5: Working in heat (material behavior) - thermal limit
MW 20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	6.93 kg / 15.28 LBS 6930.0 g / 68.0 N	OK
40 °C	-2.2%	6.78 kg / 14.94 LBS 6777.5 g / 66.5 N	OK
60 °C	-4.4%	6.63 kg / 14.61 LBS 6625.1 g / 65.0 N
80 °C	-6.6%	6.47 kg / 14.27 LBS 6472.6 g / 63.5 N
100 °C	-28.8%	4.93 kg / 10.88 LBS 4934.2 g / 48.4 N

Standard neodymium magnets change their properties strength above the temperature limit. Watch out for overheating – excessive heat can irreversibly damage this magnet. With increasing heat, the magnet's power briefly decreases. Refrain from using this magnet near heat sources higher than its operating temperature limit. Too high temperature will result in destruction of magnetic properties.

*Technical advisory: Heat tolerance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low Pc) may lose charge permanently sooner than taller cylinders. The danger warning in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	14.87 kg / 32.79 LBS 4 380 Gs	2.23 kg / 4.92 LBS 2231 g / 21.9 N	N/A
1 mm	13.89 kg / 30.63 LBS 5 357 Gs	2.08 kg / 4.59 LBS 2084 g / 20.4 N	12.50 kg / 27.57 LBS ~0 Gs
2 mm	12.82 kg / 28.27 LBS 5 146 Gs	1.92 kg / 4.24 LBS 1923 g / 18.9 N	11.54 kg / 25.44 LBS ~0 Gs
3 mm	11.71 kg / 25.82 LBS 4 918 Gs	1.76 kg / 3.87 LBS 1757 g / 17.2 N	10.54 kg / 23.24 LBS ~0 Gs
5 mm	9.51 kg / 20.97 LBS 4 433 Gs	1.43 kg / 3.15 LBS 1427 g / 14.0 N	8.56 kg / 18.88 LBS ~0 Gs
10 mm	5.03 kg / 11.09 LBS 3 223 Gs	0.75 kg / 1.66 LBS 754 g / 7.4 N	4.53 kg / 9.98 LBS ~0 Gs
20 mm	1.16 kg / 2.56 LBS 1 549 Gs	0.17 kg / 0.38 LBS 174 g / 1.7 N	1.05 kg / 2.31 LBS ~0 Gs
50 mm	0.03 kg / 0.07 LBS 251 Gs	0.00 kg / 0.01 LBS 5 g / 0.0 N	0.03 kg / 0.06 LBS ~0 Gs
60 mm	0.01 kg / 0.03 LBS 159 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.02 LBS ~0 Gs
70 mm	0.01 kg / 0.01 LBS 107 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.01 LBS 75 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 54 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 41 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnets attract each other from a much further distance than a magnet and steel combination. The setup of two magnets produces a massive flux and a larger range of operation. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a steel. Exercise caution that when bringing together two magnets, the collision energy is huge. The repulsion force is slightly lower than the connection force, but still large.
*Field value for N-N configuration drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Results refer to sliding force of dual same neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MW 20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.5 cm
Hearing aid	10 Gs (1.0 mT)	6.5 cm
Timepiece	20 Gs (2.0 mT)	5.5 cm
Mobile device	40 Gs (4.0 mT)	4.0 cm
Car key	50 Gs (5.0 mT)	4.0 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 poses a serious hazard to IT equipment and pacemakers. These NdFeB products produce a field that disrupts operation of sensitive medical devices. Remember: the unseen radiation acts through matter and housings. Increased vigilance must be taken 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, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - collision effects
MW 20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	25.63 km/h (7.12 m/s)	0.30 J
30 mm	42.39 km/h (11.77 m/s)	0.82 J
50 mm	54.70 km/h (15.19 m/s)	1.36 J
100 mm	77.35 km/h (21.49 m/s)	2.72 J

NdFeB products are very brittle – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can trigger coating fragments or painful pinches to fingers. Be sure to control the product during installation so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Surface protection spec
MW 20x5 / N38

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

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	9 675 Mx	96.7 µWb
P_c Coefficient	0.35	Low (Flat)

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

Table 11: Underwater work (magnet fishing)
MW 20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	6.93 kg	Standard
Water (riverbed)	7.93 kg (+1.00 kg buoyancy gain)	+14.5%

Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) severely limits the holding force.

3. Thermal stability

*For standard magnets, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.35

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

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Ecology and recycling (GPSR)

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: 010044-2026

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MW 35x5 / N38 - cylindrical magnet

13.81 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, composed of durable NdFeB material, which, at dimensions of Ø20x5 mm, guarantees maximum efficiency. The MW 20x5 / N38 component boasts an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 6.93 kg), this product is in stock from our European logistics center, ensuring quick order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the high power of 67.95 N with a weight of only 11.78 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, 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 automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are suitable for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø20x5), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø20x5 mm, which, at a weight of 11.78 g, makes it an element with high magnetic energy density. The value of 67.95 N means that the magnet is capable of holding a weight many times exceeding its own mass of 11.78 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 5 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.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their high retention, neodymium magnets are valued for these benefits:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
They are resistant to demagnetization induced by external disturbances,
The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Magnetic induction on the surface of the magnet remains extremely intense,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures approaching 230°C and above...
Thanks to freedom in forming and the capacity to customize to specific needs,
Wide application in future technologies – they are utilized in computer drives, drive modules, diagnostic systems, and industrial machines.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in realizing threads and complicated forms in magnets, we recommend using cover - magnetic mechanism.
Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Additionally, small components of these magnets can be problematic in diagnostics medical when they are in the body.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Information about lifting capacity was defined for ideal contact conditions, including:

using a plate made of low-carbon steel, functioning as a ideal flux conductor
possessing a thickness of at least 10 mm to avoid saturation
with an ideally smooth contact surface
with zero gap (without impurities)
under perpendicular force direction (90-degree angle)
at standard ambient temperature

Lifting capacity in practice – influencing factors

During everyday use, the actual holding force depends on a number of factors, ranked from the most important:

Clearance – existence of foreign body (paint, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material composition – not every steel attracts identically. Alloy additives worsen the attraction effect.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Lifting capacity was determined with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.

Safe handling of NdFeB magnets

GPS Danger

A powerful magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Maintain magnets near a smartphone to prevent breaking the sensors.

Machining danger

Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Bodily injuries

Danger of trauma: The attraction force is so immense that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

Electronic hazard

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

Pacemakers

For implant holders: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or request help to handle the magnets.

Heat warning

Standard neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.

This is not a toy

Strictly keep magnets away from children. Choking hazard is significant, and the effects of magnets clamping inside the body are fatal.

Avoid contact if allergic

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness appears, cease working with magnets and wear gloves.

Safe operation

Exercise caution. Rare earth magnets attract from a long distance and snap with massive power, often faster than you can react.

Fragile material

Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Attention! Need more info? Check our post: Are neodymium magnets dangerous?

MW 20x5 / N38 - cylindrical magnet

Technical details - MW 20x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - technical parameters

Table 1: Static pull force (force vs distance) - interaction chart MW 20x5 / N38

Table 2: Slippage capacity (vertical surface) MW 20x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 20x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 20x5 / N38

Table 5: Working in heat (material behavior) - thermal limit MW 20x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 20x5 / N38

Table 7: Hazards (electronics) - warnings MW 20x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 20x5 / N38

Table 9: Surface protection spec MW 20x5 / N38

Table 10: Construction data (Flux) MW 20x5 / N38

Table 11: Underwater work (magnet fishing) MW 20x5 / N38

1. Sliding resistance

2. Plate thickness effect

3. Thermal stability

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

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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MW 35x5 / N38 - cylindrical magnet

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Limitations

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Lifting capacity in practice – influencing factors

Safe handling of NdFeB magnets

GPS Danger

Machining danger

Bodily injuries

Electronic hazard

Pacemakers

Heat warning

This is not a toy

Avoid contact if allergic

Safe operation

Fragile material

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 20x5 / N38

Table 2: Slippage capacity (vertical surface)
MW 20x5 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 20x5 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 20x5 / N38

Table 5: Working in heat (material behavior) - thermal limit
MW 20x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 20x5 / N38

Table 7: Hazards (electronics) - warnings
MW 20x5 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 20x5 / N38

Table 9: Surface protection spec
MW 20x5 / N38

Table 10: Construction data (Flux)
MW 20x5 / N38

Table 11: Underwater work (magnet fishing)
MW 20x5 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.