Product available Ships tomorrow

MW 8x4 / 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 010104

GTIN/EAN: 5906301811039

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

1.51 g

Magnetization Direction

↑ axial

Load capacity

2.04 kg / 20.00 N

Magnetic Induction

437.78 mT / 4378 Gs

Coating

[NiCuNi] Nickel

see parameters »

0.701 ZŁ with VAT / pcs + price for transport

0.570 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 8x4 / N38 - cylindrical magnet

Specification / characteristics - MW 8x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010104
GTIN/EAN	5906301811039
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	8 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	1.51 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.04 kg / 20.00 N
Magnetic Induction ~ ?	437.78 mT / 4378 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x4 / 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 - report

Presented information represent the outcome of a physical analysis. Results are based on algorithms for the class Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Please consider these data as a reference point for designers.

Table 1: Static pull force (force vs distance) - characteristics
MW 8x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4374 Gs 437.4 mT	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N	medium risk
1 mm	3338 Gs 333.8 mT	1.19 kg / 2.62 lbs 1187.8 g / 11.7 N	safe
2 mm	2386 Gs 238.6 mT	0.61 kg / 1.34 lbs 607.0 g / 6.0 N	safe
3 mm	1663 Gs 166.3 mT	0.29 kg / 0.65 lbs 294.9 g / 2.9 N	safe
5 mm	824 Gs 82.4 mT	0.07 kg / 0.16 lbs 72.4 g / 0.7 N	safe
10 mm	205 Gs 20.5 mT	0.00 kg / 0.01 lbs 4.5 g / 0.0 N	safe
15 mm	76 Gs 7.6 mT	0.00 kg / 0.00 lbs 0.6 g / 0.0 N	safe
20 mm	36 Gs 3.6 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe
30 mm	12 Gs 1.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Magnetic force decreases sharply with every subsequent millimeter of gap. Keep in mind that every additional insulation layer (e.g., dirt, paint, rust) significantly reduces the pull force. Magnets work most effectively at the point of direct contact; air break kills the power. Notice how flashily the load capacity plummet, when the magnet does not adhere directly to the steel surface. When planning the arrangement, discard unnecessary gaps.

Table 2: Shear load (vertical surface)
MW 8x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.41 kg / 0.90 lbs 408.0 g / 4.0 N
1 mm	Stal (~0.2)	0.24 kg / 0.52 lbs 238.0 g / 2.3 N
2 mm	Stal (~0.2)	0.12 kg / 0.27 lbs 122.0 g / 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 0.13 lbs 58.0 g / 0.6 N
5 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 14.0 g / 0.1 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data indicates the approximate force needed to cause the shifting of the magnet downwards against a vertical metal surface (considering standard friction coefficient). This parameter varies with the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.61 kg / 1.35 lbs 612.0 g / 6.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.41 kg / 0.90 lbs 408.0 g / 4.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.20 kg / 0.45 lbs 204.0 g / 2.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.02 kg / 2.25 lbs 1020.0 g / 10.0 N

When placing a holder on a upright plane (e.g., a board), it will only hold just approx. 20%-30% of its maximum pull force. Gravitational force as well as a weak degree of grip mean that holders move down easier than they pull off. Planning a hanger? Note that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slide down under a much lighter load. Utilizing a rubberized coating can significantly improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 8x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.20 kg / 0.45 lbs 204.0 g / 2.0 N
1 mm	25%	0.51 kg / 1.12 lbs 510.0 g / 5.0 N
2 mm	50%	1.02 kg / 2.25 lbs 1020.0 g / 10.0 N
3 mm	75%	1.53 kg / 3.37 lbs 1530.0 g / 15.0 N
5 mm	100%	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N
10 mm	100%	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N
11 mm	100%	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N
12 mm	100%	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N

A thin metal plate is incapable of focus the full magnetic flux, which weakens actual performance of the holder. If you mount a strong magnet to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To utilize the maximum of this neodymium's potential, you need a suitably thick backing of metal. The material oversaturation means that on delicate walls (e.g., appliance housings), the holder holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 8x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.04 kg / 4.50 lbs 2040.0 g / 20.0 N	OK
40 °C	-2.2%	2.00 kg / 4.40 lbs 1995.1 g / 19.6 N	OK
60 °C	-4.4%	1.95 kg / 4.30 lbs 1950.2 g / 19.1 N
80 °C	-6.6%	1.91 kg / 4.20 lbs 1905.4 g / 18.7 N
100 °C	-28.8%	1.45 kg / 3.20 lbs 1452.5 g / 14.2 N

Ordinary NdFeB products change their properties strength above the temperature limit. Watch out for overheating – heat can irreversibly destroy this magnet. As the temperature rises, the magnet's capacity temporarily drops. Refrain from using this magnet close to ovens exceeding its operating temperature limit. Too high temperature will lead to destruction of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) risk losing magnetic properties sooner compared to rod magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 8x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	5.93 kg / 13.07 lbs 5 531 Gs	0.89 kg / 1.96 lbs 889 g / 8.7 N	N/A
1 mm	4.63 kg / 10.21 lbs 7 730 Gs	0.69 kg / 1.53 lbs 694 g / 6.8 N	4.17 kg / 9.18 lbs ~0 Gs
2 mm	3.45 kg / 7.61 lbs 6 675 Gs	0.52 kg / 1.14 lbs 518 g / 5.1 N	3.11 kg / 6.85 lbs ~0 Gs
3 mm	2.49 kg / 5.50 lbs 5 674 Gs	0.37 kg / 0.82 lbs 374 g / 3.7 N	2.25 kg / 4.95 lbs ~0 Gs
5 mm	1.23 kg / 2.72 lbs 3 989 Gs	0.18 kg / 0.41 lbs 185 g / 1.8 N	1.11 kg / 2.45 lbs ~0 Gs
10 mm	0.21 kg / 0.46 lbs 1 648 Gs	0.03 kg / 0.07 lbs 32 g / 0.3 N	0.19 kg / 0.42 lbs ~0 Gs
20 mm	0.01 kg / 0.03 lbs 410 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.03 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 39 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 24 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 15 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 11 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 8 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 6 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnetic products interact from a significantly greater distance than a magnet and steel combination. Such a system of magnet-to-magnet generates a stronger field and a wider radius of performance. Planning to create a solid fastener? Use a pair of magnets instead of one magnet and a striker plate. Remember that when bringing together two magnets, the impact force is extreme. The levitation is marginally weaker than the attraction, but still large.
*Flux density between like poles reaches ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Attention: Estimates show shear force of dual matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Timepiece	20 Gs (2.0 mT)	2.5 cm
Mobile device	40 Gs (4.0 mT)	2.0 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field poses a serious hazard to IT equipment and medical implants. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Remember: the unseen radiation acts through matter and glass. 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 place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 8x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	37.12 km/h (10.31 m/s)	0.08 J
30 mm	64.21 km/h (17.83 m/s)	0.24 J
50 mm	82.89 km/h (23.02 m/s)	0.40 J
100 mm	117.22 km/h (32.56 m/s)	0.80 J

NdFeB products are prone to chipping – a strong collision with metal causes immediate chipping. Control the attraction moment – a magnet released freely becomes dangerous. Impact energy can cause material chips or painful pinches to fingers. Always hold the magnet during bringing near metal so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Use safety goggles when working with large magnets.

Table 9: Corrosion resistance
MW 8x4 / 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 following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MW 8x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 233 Mx	22.3 µWb
P_c Coefficient	0.59	Low (Flat)

Total magnetic flux passing through the magnet pole. Essential parameter when building generators and motors. P_c value defines the working geometry.

Table 11: Physics of underwater searching
MW 8x4 / N38

Environment	Effective steel pull	Effect
Air (land)	2.04 kg	Standard
Water (riverbed)	2.34 kg (+0.30 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Sliding resistance

*Note: On a vertical surface, the magnet retains only ~20% of its max power.

2. Steel saturation

*Thin steel (e.g. computer case) drastically reduces the holding force.

3. Temperature resistance

*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) = 0.59

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%

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: 010104-2026

Measurement Calculator

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The offered product is an extremely powerful cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø8x4 mm, guarantees optimal power. The MW 8x4 / N38 model boasts an accuracy of ±0.1mm and professional build quality, making it a perfect solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 2.04 kg), this product is available off-the-shelf from our European logistics center, ensuring rapid order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is ideal for building electric motors, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 20.00 N with a weight of only 1.51 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most popular standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need the strongest magnets in the same volume (Ø8x4), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 8 mm and height 4 mm. The key parameter here is the holding force amounting to approximately 2.04 kg (force ~20.00 N), which, with such compact 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 8 mm. Such an arrangement is most desirable 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.

Strengths as well as weaknesses of neodymium magnets.

Strengths

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

They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
Neodymium magnets prove to be highly resistant to magnetic field loss caused by external interference,
The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the top side of the magnet is extremely intense,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Considering the option of accurate shaping and customization to custom requirements, NdFeB magnets can be modeled in a variety of shapes and sizes, which amplifies use scope,
Universal use in electronics industry – they find application in computer drives, drive modules, medical equipment, as well as complex engineering applications.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Cons of neodymium magnets: weaknesses and usage proposals

At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power 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 rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Limited ability of producing nuts in the magnet and complicated shapes - recommended is cover - mounting mechanism.
Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets can disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what it depends on?

Holding force of 2.04 kg is a result of laboratory testing performed under standard conditions:

on a block made of structural steel, effectively closing the magnetic field
whose thickness equals approx. 10 mm
with a plane free of scratches
under conditions of no distance (surface-to-surface)
during pulling in a direction perpendicular to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

In real-world applications, the actual lifting capacity depends on several key aspects, presented from the most important:

Gap (betwixt the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, rust or debris).
Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Plate material – mild steel attracts best. Alloy admixtures decrease magnetic properties and lifting capacity.
Surface finish – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal factor – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. In addition, even a slight gap between the magnet and the plate lowers the load capacity.

H&S for magnets

Serious injuries

Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Data carriers

Data protection: Strong magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, mechanical watches).

Do not underestimate power

Handle with care. Neodymium magnets attract from a long distance and connect with huge force, often quicker than you can move away.

Demagnetization risk

Do not overheat. Neodymium magnets are susceptible to temperature. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Nickel coating and allergies

Studies show that the nickel plating (standard magnet coating) is a common allergen. If your skin reacts to metals, prevent direct skin contact and opt for coated magnets.

Life threat

Individuals with a pacemaker must maintain an absolute distance from magnets. The magnetism can interfere with the operation of the life-saving device.

Mechanical processing

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Precision electronics

Navigation devices and smartphones are extremely susceptible to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Risk of cracking

Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Do not give to children

Neodymium magnets are not intended for children. Swallowing multiple magnets may result in them connecting inside the digestive tract, which constitutes a severe health hazard and necessitates urgent medical intervention.

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

MW 8x4 / N38 - cylindrical magnet

Technical of the product - MW 8x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - report

Table 1: Static pull force (force vs distance) - characteristics MW 8x4 / N38

Table 2: Shear load (vertical surface) MW 8x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 8x4 / N38

Table 4: Material efficiency (saturation) - power losses MW 8x4 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 8x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system MW 8x4 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 8x4 / N38

Table 8: Impact energy (kinetic energy) - warning MW 8x4 / N38

Table 9: Corrosion resistance MW 8x4 / N38

Table 10: Electrical data (Pc) MW 8x4 / N38

Table 11: Physics of underwater searching MW 8x4 / N38

1. Sliding resistance

2. Steel saturation

3. Temperature resistance

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

Material specification

Sustainability

Magnet pull force

Magnetic Field

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Strengths as well as weaknesses of neodymium magnets.

Strengths

Weaknesses

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what it depends on?

Determinants of practical lifting force of a magnet

H&S for magnets

Serious injuries

Data carriers

Do not underestimate power

Demagnetization risk

Nickel coating and allergies

Life threat

Mechanical processing

Precision electronics

Risk of cracking

Do not give to children

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - characteristics
MW 8x4 / N38

Table 2: Shear load (vertical surface)
MW 8x4 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x4 / N38

Table 4: Material efficiency (saturation) - power losses
MW 8x4 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 8x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - forces in the system
MW 8x4 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 8x4 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 8x4 / N38

Table 9: Corrosion resistance
MW 8x4 / N38

Table 10: Electrical data (P_c)
MW 8x4 / N38

Table 11: Physics of underwater searching
MW 8x4 / N38