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MW 8x8 / 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 010106

GTIN/EAN: 5906301811053

5.00

Diameter Ø

8 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

3.02 g

Magnetization Direction

↑ axial

Load capacity

2.03 kg / 19.92 N

Magnetic Induction

553.67 mT / 5537 Gs

Coating

[NiCuNi] Nickel

check properties »

1.341 ZŁ with VAT / pcs + price for transport

1.090 ZŁ net + 23% VAT / pcs

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Technical of the product - MW 8x8 / N38 - cylindrical magnet

Specification / characteristics - MW 8x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010106
GTIN/EAN	5906301811053
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	8 mm [±0,1 mm]
Weight	3.02 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.03 kg / 19.92 N
Magnetic Induction ~ ?	553.67 mT / 5537 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 8x8 / 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 - data

These information are the outcome of a physical calculation. Values rely on models for the class Nd₂Fe₁₄B. Operational conditions may differ. Treat these data as a reference point when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MW 8x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5531 Gs 553.1 mT	2.03 kg / 4.48 LBS 2030.0 g / 19.9 N	medium risk
1 mm	4162 Gs 416.2 mT	1.15 kg / 2.53 LBS 1149.3 g / 11.3 N	weak grip
2 mm	2984 Gs 298.4 mT	0.59 kg / 1.30 LBS 590.7 g / 5.8 N	weak grip
3 mm	2107 Gs 210.7 mT	0.29 kg / 0.65 LBS 294.5 g / 2.9 N	weak grip
5 mm	1084 Gs 108.4 mT	0.08 kg / 0.17 LBS 78.0 g / 0.8 N	weak grip
10 mm	296 Gs 29.6 mT	0.01 kg / 0.01 LBS 5.8 g / 0.1 N	weak grip
15 mm	118 Gs 11.8 mT	0.00 kg / 0.00 LBS 0.9 g / 0.0 N	weak grip
20 mm	58 Gs 5.8 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	weak grip
30 mm	20 Gs 2.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., dirt, paint, rust) noticeably weakens the grip. Magnetic products work most effectively in perfect adhesion; distance drastically cuts the power. Observe how rapidly the pull force drop, when the magnet does not adhere tightly to the steel surface. When planning the mounting, avoid additional spacers.

Table 2: Shear force (wall)
MW 8x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.41 kg / 0.90 LBS 406.0 g / 4.0 N
1 mm	Stal (~0.2)	0.23 kg / 0.51 LBS 230.0 g / 2.3 N
2 mm	Stal (~0.2)	0.12 kg / 0.26 LBS 118.0 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)	0.02 kg / 0.04 LBS 16.0 g / 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 shows the estimated force necessary to start the slippage of the magnet vertically on a upright steel wall (considering standard friction coefficient). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 8x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.61 kg / 1.34 LBS 609.0 g / 6.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.41 kg / 0.90 LBS 406.0 g / 4.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.20 kg / 0.45 LBS 203.0 g / 2.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.02 kg / 2.24 LBS 1015.0 g / 10.0 N

When mounting a magnet on a upright wall (e.g., a car body), it will only hold barely approx. 1/5 of its nominal power. Gravity and a low friction coefficient cause that holders move down faster than they pop off the substrate. Want to create a wall mount? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a noticeably lighter cargo. Using a rubber coating can drastically improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 8x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.20 kg / 0.45 LBS 203.0 g / 2.0 N
1 mm	25%	0.51 kg / 1.12 LBS 507.5 g / 5.0 N
2 mm	50%	1.02 kg / 2.24 LBS 1015.0 g / 10.0 N
3 mm	75%	1.52 kg / 3.36 LBS 1522.5 g / 14.9 N
5 mm	100%	2.03 kg / 4.48 LBS 2030.0 g / 19.9 N
10 mm	100%	2.03 kg / 4.48 LBS 2030.0 g / 19.9 N
11 mm	100%	2.03 kg / 4.48 LBS 2030.0 g / 19.9 N
12 mm	100%	2.03 kg / 4.48 LBS 2030.0 g / 19.9 N

A thin metal plate is unable to focus the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a weak sheet, the field will pass right through and the holding will be smaller. To achieve the maximum of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation phenomenon causes that on delicate walls (e.g., thin profiles), the holder holds weaker. We recommend selecting the steel thickness according to the table below.

Table 5: Thermal resistance (stability) - resistance threshold
MW 8x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.03 kg / 4.48 LBS 2030.0 g / 19.9 N	OK
40 °C	-2.2%	1.99 kg / 4.38 LBS 1985.3 g / 19.5 N	OK
60 °C	-4.4%	1.94 kg / 4.28 LBS 1940.7 g / 19.0 N	OK
80 °C	-6.6%	1.90 kg / 4.18 LBS 1896.0 g / 18.6 N
100 °C	-28.8%	1.45 kg / 3.19 LBS 1445.4 g / 14.2 N

Ordinary NdFeB products change their properties power after exceeding the maximum temperature. Protect against heat – heat can permanently destroy this product. With every degree above norm, the neodymium's capacity temporarily decreases. Do not use this magnet in hot environments higher than its safe range. Too high temperature will lead to permanent loss of magnetic properties.

*Technical advisory: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low Pc) risk losing magnetic properties at lower temperatures compared to rod magnets. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 8x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	9.48 kg / 20.90 LBS 6 000 Gs	1.42 kg / 3.14 LBS 1422 g / 14.0 N	N/A
1 mm	7.26 kg / 16.01 LBS 9 682 Gs	1.09 kg / 2.40 LBS 1089 g / 10.7 N	6.54 kg / 14.41 LBS ~0 Gs
2 mm	5.37 kg / 11.83 LBS 8 324 Gs	0.81 kg / 1.78 LBS 805 g / 7.9 N	4.83 kg / 10.65 LBS ~0 Gs
3 mm	3.88 kg / 8.55 LBS 7 074 Gs	0.58 kg / 1.28 LBS 582 g / 5.7 N	3.49 kg / 7.69 LBS ~0 Gs
5 mm	1.95 kg / 4.30 LBS 5 016 Gs	0.29 kg / 0.64 LBS 292 g / 2.9 N	1.75 kg / 3.87 LBS ~0 Gs
10 mm	0.36 kg / 0.80 LBS 2 169 Gs	0.05 kg / 0.12 LBS 55 g / 0.5 N	0.33 kg / 0.72 LBS ~0 Gs
20 mm	0.03 kg / 0.06 LBS 592 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 66 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 41 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 27 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 19 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 14 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 10 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a neodymium and metal setup. The setup of magnet-to-magnet produces a massive flux and a further horizon of performance. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is slightly lower than the attraction, but still significant.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the midpoint of the gap (due to field cancellation).
Note: Results refer to shear force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 8x8 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.5 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Timepiece	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Car key	50 Gs (5.0 mT)	2.5 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 is a real danger to electronic devices and pacemakers. These magnets produce a field that destroys function of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Special caution must be taken by people with hearing aids and drug dispensers. Also at risk are: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 8x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	26.19 km/h (7.28 m/s)	0.08 J
30 mm	45.29 km/h (12.58 m/s)	0.24 J
50 mm	58.47 km/h (16.24 m/s)	0.40 J
100 mm	82.68 km/h (22.97 m/s)	0.80 J

NdFeB products are very brittle – a violent impact against metal risks their cracking. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Impact energy can destroy the magnet or dangerous crushing to fingers. Hold the magnet firmly during mounting so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the magnet. Use safety goggles when playing with large magnets.

Table 9: Corrosion resistance
MW 8x8 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 8x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 868 Mx	28.7 µWb
P_c Coefficient	0.89	High (Stable)

Total magnetic flux emitted by the magnet pole. Essential parameter for generator designers as well as sensors. P_c value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 8x8 / N38

Environment	Effective steel pull	Effect
Air (land)	2.03 kg	Standard
Water (riverbed)	2.32 kg (+0.29 kg buoyancy gain)	+14.5%

Corrosion warning: 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. Vertical hold

*Caution: On a vertical wall, the magnet retains merely ~20% of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Thermal stability

*For N38 material, 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) = 0.89

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

Chemical composition

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: 010106-2026

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MPL 25x15x2 / N38 - lamellar magnet

2.39 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

NC kulka fi 2 cale / N52 - neocube

1200.00 ZŁ brutto / pcs

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SM 25x225 [2xM8] / N42 - magnetic separator

615.00 ZŁ brutto / pcs

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MW 70x20 / N38 - cylindrical magnet

239.85 ZŁ brutto / pcs

This product is a very strong cylinder magnet, made from advanced NdFeB material, which, at dimensions of Ø8x8 mm, guarantees maximum efficiency. The MW 8x8 / N38 model boasts high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 2.03 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced automation, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 19.92 N with a weight of only 3.02 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

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., 8.1 mm) using epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø8x8), 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 8 mm. The key parameter here is the lifting capacity amounting to approximately 2.03 kg (force ~19.92 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 8 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 rare earth magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
They are extremely resistant to demagnetization induced by external disturbances,
By applying a reflective layer of gold, the element acquires an professional look,
The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to flexibility in designing and the ability to modify to client solutions,
Key role in high-tech industry – they find application in data components, brushless drives, precision medical tools, as well as other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in creating threads and complex forms in magnets, we recommend using a housing - magnetic mechanism.
Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these devices can be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Magnet power was determined for ideal contact conditions, including:

on a base made of mild steel, effectively closing the magnetic field
possessing a massiveness of min. 10 mm to avoid saturation
with an ground touching surface
with total lack of distance (without paint)
for force acting at a right angle (in the magnet axis)
at ambient temperature room level

Lifting capacity in real conditions – factors

It is worth knowing that the working load may be lower influenced by the following factors, in order of importance:

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Base massiveness – insufficiently thick steel does not close the flux, causing part of the flux to be escaped into the air.
Material composition – not every steel reacts the same. Alloy additives weaken the attraction effect.
Surface quality – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate lowers the holding force.

Warnings

GPS and phone interference

Navigation devices and mobile phones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Heat sensitivity

Avoid heat. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, look for HT versions (H, SH, UH).

Cards and drives

Data protection: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, medical aids, timepieces).

Do not give to children

Absolutely keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are fatal.

Life threat

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

Metal Allergy

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, immediately stop working with magnets and use protective gear.

Bone fractures

Pinching hazard: The attraction force is so immense that it can result in hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Mechanical processing

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

Protective goggles

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Immense force

Exercise caution. Rare earth magnets attract from a distance and snap with huge force, often quicker than you can move away.

Safety First! Need more info? Check our post: Why are neodymium magnets dangerous?

MW 8x8 / N38 - cylindrical magnet

Technical of the product - MW 8x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the magnet - data

Table 1: Static force (force vs gap) - interaction chart MW 8x8 / N38

Table 2: Shear force (wall) MW 8x8 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 8x8 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 8x8 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 8x8 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 8x8 / N38

Table 7: Hazards (electronics) - precautionary measures MW 8x8 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 8x8 / N38

Table 9: Corrosion resistance MW 8x8 / N38

Table 10: Construction data (Flux) MW 8x8 / N38

Table 11: Underwater work (magnet fishing) MW 8x8 / N38

1. Vertical hold

2. Plate thickness effect

3. Thermal stability

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

Chemical composition

Sustainability

Magnet pull force

Field Strength

See also proposals

MPL 25x15x2 / N38 - lamellar magnet

NC kulka fi 2 cale / N52 - neocube

SM 25x225 [2xM8] / N42 - magnetic separator

MW 70x20 / N38 - cylindrical magnet

Strengths as well as weaknesses of rare earth magnets.

Advantages

Weaknesses

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Lifting capacity in real conditions – factors

Warnings

GPS and phone interference

Heat sensitivity

Cards and drives

Do not give to children

Life threat

Metal Allergy

Bone fractures

Mechanical processing

Protective goggles

Immense force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MW 8x8 / N38

Table 2: Shear force (wall)
MW 8x8 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 8x8 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 8x8 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 8x8 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 8x8 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 8x8 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 8x8 / N38

Table 9: Corrosion resistance
MW 8x8 / N38

Table 10: Construction data (Flux)
MW 8x8 / N38

Table 11: Underwater work (magnet fishing)
MW 8x8 / N38