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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

view parameters »

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 simulation of the magnet - data

Presented data represent the outcome of a engineering calculation. Values are based on algorithms for the class Nd₂Fe₁₄B. Real-world conditions might slightly deviate from the simulation results. Treat these calculations as a supplementary guide for designers.

Table 1: Static pull force (pull vs distance) - 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 pounds 2030.0 g / 19.9 N	strong
1 mm	4162 Gs 416.2 mT	1.15 kg / 2.53 pounds 1149.3 g / 11.3 N	low risk
2 mm	2984 Gs 298.4 mT	0.59 kg / 1.30 pounds 590.7 g / 5.8 N	low risk
3 mm	2107 Gs 210.7 mT	0.29 kg / 0.65 pounds 294.5 g / 2.9 N	low risk
5 mm	1084 Gs 108.4 mT	0.08 kg / 0.17 pounds 78.0 g / 0.8 N	low risk
10 mm	296 Gs 29.6 mT	0.01 kg / 0.01 pounds 5.8 g / 0.1 N	low risk
15 mm	118 Gs 11.8 mT	0.00 kg / 0.00 pounds 0.9 g / 0.0 N	low risk
20 mm	58 Gs 5.8 mT	0.00 kg / 0.00 pounds 0.2 g / 0.0 N	low risk
30 mm	20 Gs 2.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	low risk

Grip strength weakens drastically with every subsequent millimeter of spacing. Remember that every additional insulation layer (e.g., contamination, paint, rust) noticeably weakens the grip. Neodymiums hold most effectively at the point of direct contact; distance kills the force. Notice how rapidly the load capacity drop, when the magnet does not touch flatly to the steel surface. When planning the mounting, discard additional spacers.

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

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.41 kg / 0.90 pounds 406.0 g / 4.0 N
1 mm	Stal (~0.2)	0.23 kg / 0.51 pounds 230.0 g / 2.3 N
2 mm	Stal (~0.2)	0.12 kg / 0.26 pounds 118.0 g / 1.2 N
3 mm	Stal (~0.2)	0.06 kg / 0.13 pounds 58.0 g / 0.6 N
5 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 16.0 g / 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

The table below indicates the approximate force necessary to cause the downward movement of the magnet vertically along a vertical steel wall (considering typical friction). This value varies with the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - 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 pounds 609.0 g / 6.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.41 kg / 0.90 pounds 406.0 g / 4.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.20 kg / 0.45 pounds 203.0 g / 2.0 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.02 kg / 2.24 pounds 1015.0 g / 10.0 N

When hanging a magnet on a vertical surface (e.g., a car body), it will maintain just approx. 20%-30% of its maximum pull force. Gravitational force and a weak degree of grip mean that products slide down faster than they pull off. Planning a vertical fastening? Note that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will give way down under a noticeably lighter cargo. Application of an anti-slip pad can drastically improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 8x8 / N38

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

A thin sheet cannot absorb the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize 100% of this neodymium's potential, you need a suitably thick element of metal. The material oversaturation means that on sheet metal structures (e.g., thin profiles), the holder works worse. We advise picking the steel thickness from these parameters.

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

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

Classic neodymiums irreversibly lose power past the thermal threshold. Avoid high temperatures – excessive heat can irreversibly destroy this magnet. With increasing heat, the neodymium's capacity temporarily lowers. Refrain from using this product close to ovens exceeding its safe range. Exceeding the critical threshold will result in destruction of magnetic properties.

*Technical advisory: Thermal stability depends not only on the material grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) risk losing magnetic properties sooner than long magnets. The danger warning in the table points to permanent field degradation for this particular item.

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

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

Two magnetic products interact from a wider radius than a neodymium and metal combination. Such a system of two magnets creates a more powerful interaction and a wider radius 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 collision energy is extreme. The repulsion force is a bit weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Attention: Results apply to sliding force of two matching magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (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
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Remote	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

Powerful magnet radiation poses a large risk to electronic devices as well as pacemakers. These NdFeB products produce a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation penetrates the body and glass. Exceptional care must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
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

Neodymium magnets are delicate – a collision with steel risks their cracking. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can trigger coating fragments or injury to fingers. Be sure to control the product during mounting so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Wear eye protection when working with powerful specimens.

Table 9: Surface protection spec
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)

The following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical 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 pole surface. Essential parameter in coil applications and motors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
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%

Warning: 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Caution: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) significantly weakens the holding force.

3. Power loss vs temp

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.89

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 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: 010106-2026

Measurement Calculator

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400.00 ZŁ brutto / pcs

This product is an exceptionally strong cylinder magnet, manufactured from modern NdFeB material, which, at dimensions of Ø8x8 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 2.03 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 19.92 N with a weight of only 3.02 g, this rod is indispensable in electronics and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering a great economic balance and operational stability. 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 warehouse.

This model is characterized by dimensions Ø8x8 mm, which, at a weight of 3.02 g, makes it an element with impressive magnetic energy density. 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 secures it 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. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Pros and cons of neodymium magnets.

Strengths

Apart from their strong magnetism, neodymium magnets have these key benefits:

They have unchanged lifting capacity, and over around ten years their performance decreases symbolically – ~1% (according to theory),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
In other words, due to the reflective surface of gold, the element becomes visually attractive,
They show high magnetic induction at the operating surface, which increases their power,
Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to modularity in forming and the capacity to customize to specific needs,
Huge importance in high-tech industry – they find application in data components, electric drive systems, precision medical tools, and industrial machines.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Drawbacks and weaknesses of neodymium magnets: application proposals

At very strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
Neodymium magnets lose their power 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
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
Due to limitations in realizing nuts and complicated forms in magnets, we propose using a housing - magnetic mechanism.
Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small components of these products can be problematic in diagnostics medical after entering the body.
Due to complex production process, their price exceeds standard values,

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

The load parameter shown refers to the limit force, recorded under optimal environment, meaning:

with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
possessing a thickness of min. 10 mm to ensure full flux closure
characterized by even structure
without any air gap between the magnet and steel
under vertical application of breakaway force (90-degree angle)
at standard ambient temperature

Determinants of lifting force in real conditions

In practice, the actual lifting capacity results from many variables, ranked from the most important:

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Direction of force – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – too thin steel does not accept the full field, causing part of the flux to be wasted to the other side.
Plate material – mild steel gives the best results. Higher carbon content decrease magnetic properties and holding force.
Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
Temperature influence – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured by applying a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet and the plate reduces the load capacity.

Safe handling of NdFeB magnets

Risk of cracking

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Crushing force

Danger of trauma: The pulling power is so great that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Handling rules

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Danger to pacemakers

Patients with a ICD must keep an safe separation from magnets. The magnetism can interfere with the functioning of the implant.

Phone sensors

Be aware: rare earth magnets generate a field that disrupts precision electronics. Keep a safe distance from your phone, device, and navigation systems.

Warning for allergy sufferers

A percentage of the population have a hypersensitivity to Ni, which is the common plating for neodymium magnets. Prolonged contact might lead to skin redness. We strongly advise wear protective gloves.

Fire risk

Fire hazard: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Cards and drives

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

Do not give to children

Product intended for adults. Tiny parts pose a choking risk, causing intestinal necrosis. Keep out of reach of kids and pets.

Thermal limits

Standard neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.

Important! Details about risks in the article: Safety of working with magnets.

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 simulation of the magnet - data

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

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

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 8x8 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 8x8 / N38

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

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

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

Table 8: Impact energy (kinetic energy) - warning MW 8x8 / N38

Table 9: Surface protection spec MW 8x8 / N38

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

Table 11: Hydrostatics and buoyancy MW 8x8 / N38

1. Vertical hold

2. Steel thickness impact

3. Power loss vs temp

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

Material specification

Sustainability

Magnet pull force

Field Strength

Other proposals

MP 22x6x10 / N38 - ring magnet

MW 22x10 / N38 - cylindrical magnet

SM 25x175 [2xM8] / N42 - magnetic separator

UMP 107x40 [M8+M10] GW F 400 kg / N38 - search holder

Pros and cons of neodymium magnets.

Strengths

Weaknesses

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

Determinants of lifting force in real conditions

Safe handling of NdFeB magnets

Risk of cracking

Crushing force

Handling rules

Danger to pacemakers

Phone sensors

Warning for allergy sufferers

Fire risk

Cards and drives

Do not give to children

Thermal limits

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 8x8 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 8x8 / N38

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

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

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

Table 8: Impact energy (kinetic energy) - warning
MW 8x8 / N38

Table 9: Surface protection spec
MW 8x8 / N38

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

Table 11: Hydrostatics and buoyancy
MW 8x8 / N38