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MW 20x5 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
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

technical details »

5.56 ZŁ with VAT / pcs + price for transport

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Technical parameters of the product - 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

Physical modeling of the assembly - data

Presented data represent the result of a mathematical calculation. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Please consider these calculations as a reference point for designers.

Table 1: Static force (force vs distance) - power drop
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	safe
15 mm	387 Gs 38.7 mT	0.13 kg / 0.30 lbs 135.0 g / 1.3 N	safe
20 mm	211 Gs 21.1 mT	0.04 kg / 0.09 lbs 40.2 g / 0.4 N	safe
30 mm	80 Gs 8.0 mT	0.01 kg / 0.01 lbs 5.7 g / 0.1 N	safe
50 mm	20 Gs 2.0 mT	0.00 kg / 0.00 lbs 0.4 g / 0.0 N	safe

Magnetic force weakens sharply with every mm of spacing. Remember that even the smallest gap (e.g., contamination, varnish, veneer) significantly reduces the pull force. Magnets hold strongest at the point of direct contact; distance nullifies the power. Analyze how flashily the parameters plummet, when the magnet does not touch tightly to the steel surface. When planning the mounting, avoid additional spacers.

Table 2: Slippage hold (wall)
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 defines the estimated shear load sufficient to cause the slippage of the magnet vertically along a vertical steel wall (considering typical friction). This parameter is a function of the distance between the magnet and the surface.

Table 3: Wall mounting (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 placing a element on a upright plane (e.g., a car body), it you can count on just approx. 20%-30% of its maximum pull force. Gravity and a low friction coefficient mean that holders move down faster than they pop off the substrate. Want to create a wall mount? Remember that the shear force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a much lighter load. Utilizing a rubberized coating can significantly raise the stability.

Table 4: Material efficiency (substrate influence) - 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 incapable of conduct the full magnetic flux, which squanders power of the magnet. If you mount a strong magnet to a weak sheet, the flux will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this magnet's potential, you require a sufficiently solid element of steel. The saturation effect causes that on sheet metal structures (e.g., thin profiles), the magnet holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Working in heat (stability) - resistance threshold
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

Classic neodymiums irreversibly lose parameters past the thermal threshold. Avoid high temperatures – high temperature can irreversibly damage this magnet. With increasing heat, the neodymium's power temporarily lowers. Do not use this product in hot environments exceeding its working range. Ignoring the limit will lead to destruction of magnetism.

*Technical advisory: Thermal stability depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) may lose charge permanently sooner than taller cylinders. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

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 interact from a much further distance than a magnet and sheet setup. The connection of magnet-to-magnet generates a stronger field and a further horizon of operation. Planning to create a solid fastener? Apply two magnets instead of a neodymium and a steel. Remember that when bringing together two magnets, the pinch force is massive. The levitation is marginally weaker than the attraction, but still significant.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
* Calculations refer to friction force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (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
Mechanical watch	20 Gs (2.0 mT)	5.5 cm
Phone / Smartphone	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

Powerful magnet radiation poses a serious hazard to IT equipment as well as pacemakers. These magnets generate a field that disrupts operation of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Increased vigilance must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - warning
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 prone to chipping – a strong collision with metal can result in shattering. Pay attention to connection velocity – a magnet released freely speeds with massive force. Impact energy can cause material chips or painful pinches to skin. Be sure to control the product during installation so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear safety glasses 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

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)

Flux value emitted by the magnet pole. Essential parameter in coil applications as well as sensors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
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: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Sliding resistance

*Note: On a vertical surface, the magnet holds just ~20% of its perpendicular strength.

2. Steel thickness impact

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

3. Temperature resistance

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

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

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

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

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%

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: 010044-2026

Measurement Calculator

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Force (N)

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MW 10x20 / N38 - cylindrical magnet

4.92 ZŁ brutto / pcs

This product is an exceptionally strong rod magnet, composed of durable NdFeB material, which, at dimensions of Ø20x5 mm, guarantees optimal power. The MW 20x5 / N38 model features an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 6.93 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Furthermore, its 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 Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 67.95 N with a weight of only 11.78 g, this cylindrical magnet 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 epoxy glues. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating 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 even stronger magnets in the same volume (Ø20x5), 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 Ø20x5 mm, which, at a weight of 11.78 g, makes it an element with impressive 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 external factors, giving it an aesthetic, silvery shine.

This cylinder 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 diametrically if your project requires it.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

Their power is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
Magnets effectively resist against demagnetization caused by foreign field sources,
In other words, due to the aesthetic surface of silver, the element becomes visually attractive,
Magnetic induction on the working layer of the magnet is exceptional,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Due to the potential of accurate shaping and customization to custom needs, NdFeB magnets can be manufactured in a variety of shapes and sizes, which makes them more universal,
Versatile presence in innovative solutions – they are used in data components, brushless drives, advanced medical instruments, as well as industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals

At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
We recommend casing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small components of these products can complicate diagnosis medical in case of swallowing.
With large orders the cost of neodymium magnets is a challenge,

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

The force parameter is a theoretical maximum value performed under standard conditions:

using a plate made of mild steel, serving as a circuit closing element
whose thickness is min. 10 mm
with an ground touching surface
under conditions of ideal adhesion (surface-to-surface)
under vertical force vector (90-degree angle)
in stable room temperature

Key elements affecting lifting force

In real-world applications, the actual lifting capacity is determined by a number of factors, listed from crucial:

Clearance – the presence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Base massiveness – insufficiently thick plate does not accept the full field, causing part of the flux to be wasted to the other side.
Material composition – not every steel attracts identically. High carbon content worsen the attraction effect.
Surface quality – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.

Safe handling of neodymium magnets

Magnetic interference

A powerful magnetic field disrupts the operation of magnetometers in smartphones and GPS navigation. Keep magnets near a device to prevent damaging the sensors.

Risk of cracking

Despite metallic appearance, the material is delicate and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Crushing force

Pinching hazard: The pulling power is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.

Do not overheat magnets

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Skin irritation risks

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If you have an allergy, avoid touching magnets with bare hands or opt for coated magnets.

Magnetic media

Intense magnetic fields can erase data on payment cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

Product not for children

Absolutely keep magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are tragic.

Medical interference

For implant holders: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.

Fire warning

Drilling and cutting of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Handling rules

Handle magnets consciously. Their powerful strength can shock even professionals. Be vigilant and do not underestimate their power.

Security! Learn more about risks in the article: Magnet Safety Guide.

MW 20x5 / N38 - cylindrical magnet

Technical parameters of the product - MW 20x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - data

Table 1: Static force (force vs distance) - power drop MW 20x5 / N38

Table 2: Slippage hold (wall) MW 20x5 / N38

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

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

Table 5: Working in heat (stability) - resistance threshold MW 20x5 / N38

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

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

Table 8: Dynamics (kinetic energy) - warning MW 20x5 / N38

Table 9: Surface protection spec MW 20x5 / N38

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

Table 11: Hydrostatics and buoyancy MW 20x5 / N38

1. Sliding resistance

2. Steel thickness impact

3. Temperature resistance

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

Material specification

Environmental data

Pulling force

Magnetic Field

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MW 10x20 / N38 - cylindrical magnet

Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Limitations

Pull force analysis

Maximum lifting force for a neodymium magnet – what contributes to it?

Key elements affecting lifting force

Safe handling of neodymium magnets

Magnetic interference

Risk of cracking

Crushing force

Do not overheat magnets

Skin irritation risks

Magnetic media

Product not for children

Medical interference

Fire warning

Handling rules

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 20x5 / N38

Table 2: Slippage hold (wall)
MW 20x5 / N38

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

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

Table 5: Working in heat (stability) - resistance threshold
MW 20x5 / N38

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

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

Table 8: Dynamics (kinetic energy) - warning
MW 20x5 / N38

Table 9: Surface protection spec
MW 20x5 / N38

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

Table 11: Hydrostatics and buoyancy
MW 20x5 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.