Product available Ships tomorrow

MW 4x10 / 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 010075

GTIN/EAN: 5906301810742

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

0.94 g

Magnetization Direction

↑ axial

Load capacity

0.32 kg / 3.16 N

Magnetic Induction

606.05 mT / 6061 Gs

Coating

[NiCuNi] Nickel

technical parameters »

0.800 ZŁ with VAT / pcs + price for transport

0.650 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 4x10 / N38 - cylindrical magnet

Specification / characteristics - MW 4x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010075
GTIN/EAN	5906301810742
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	4 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	0.94 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.32 kg / 3.16 N
Magnetic Induction ~ ?	606.05 mT / 6061 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x10 / 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 information constitute the outcome of a mathematical simulation. Results rely on models for the class Nd₂Fe₁₄B. Real-world performance might slightly differ from theoretical values. Use these data as a reference point during assembly planning.

Table 1: Static force (force vs distance) - power drop
MW 4x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	6049 Gs 604.9 mT	0.32 kg / 0.71 lbs 320.0 g / 3.1 N	safe
1 mm	3327 Gs 332.7 mT	0.10 kg / 0.21 lbs 96.8 g / 0.9 N	safe
2 mm	1732 Gs 173.2 mT	0.03 kg / 0.06 lbs 26.2 g / 0.3 N	safe
3 mm	969 Gs 96.9 mT	0.01 kg / 0.02 lbs 8.2 g / 0.1 N	safe
5 mm	389 Gs 38.9 mT	0.00 kg / 0.00 lbs 1.3 g / 0.0 N	safe
10 mm	90 Gs 9.0 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	safe
15 mm	35 Gs 3.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
20 mm	17 Gs 1.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
30 mm	6 Gs 0.6 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Magnetic force weakens significantly with every mm of gap. Remember that even the smallest gap (e.g., contamination, varnish, dust) noticeably reduces the pull force. Magnetic products hold most effectively at the point of direct contact; air break drastically cuts the power. See how quickly the pull force plummet, when the product does not adhere directly to the steel surface. When planning the mounting, discard unnecessary gaps.

Table 2: Shear force (wall)
MW 4x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.06 kg / 0.14 lbs 64.0 g / 0.6 N
1 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 20.0 g / 0.2 N
2 mm	Stal (~0.2)	0.01 kg / 0.01 lbs 6.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 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

This section shows the estimated force sufficient to cause the downward movement of the magnet down along a upright steel plate (assuming typical friction coefficient). This parameter is relative to the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 4x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.10 kg / 0.21 lbs 96.0 g / 0.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.06 kg / 0.14 lbs 64.0 g / 0.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.07 lbs 32.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.16 kg / 0.35 lbs 160.0 g / 1.6 N

When placing a element on a upright plane (e.g., a car body), it you can count on barely about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient mean that magnets slip easier than they pop off the substrate. Want to create a wall mount? Note that the shear force is much weaker than the maximum static pull force. On a painted metal, the magnet will slide down under a much lighter load. Application of an anti-slip coating can effectively improve the result.

Table 4: Material efficiency (substrate influence) - power losses
MW 4x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.07 lbs 32.0 g / 0.3 N
1 mm	25%	0.08 kg / 0.18 lbs 80.0 g / 0.8 N
2 mm	50%	0.16 kg / 0.35 lbs 160.0 g / 1.6 N
3 mm	75%	0.24 kg / 0.53 lbs 240.0 g / 2.4 N
5 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N
10 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N
11 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N
12 mm	100%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N

A thin metal plate is not enough to conduct the full magnetic flux, which weakens actual performance of the magnet. If you mount a strong magnet to a thin surface, the flux will penetrate right through and the attraction force will be weaker. To achieve the maximum of this magnet's potential, you need a suitably thick backing of metal. The saturation effect causes that on sheet metal structures (e.g., car bodies), the magnet holds weaker. We recommend selecting the steel thickness based on the following data.

Table 5: Thermal stability (stability) - power drop
MW 4x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.32 kg / 0.71 lbs 320.0 g / 3.1 N	OK
40 °C	-2.2%	0.31 kg / 0.69 lbs 313.0 g / 3.1 N	OK
60 °C	-4.4%	0.31 kg / 0.67 lbs 305.9 g / 3.0 N	OK
80 °C	-6.6%	0.30 kg / 0.66 lbs 298.9 g / 2.9 N
100 °C	-28.8%	0.23 kg / 0.50 lbs 227.8 g / 2.2 N

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly damage this product. As the temperature rises, the neodymium's force momentarily lowers. Do not use this magnet in hot environments exceeding its safe range. Ignoring the limit will lead to irreversible degradation of magnetic properties.

*Technical advisory: Temperature resistance is determined by both grade, as well as the dimension ratios. Low-profile magnets (low Pc) may lose charge permanently at lower temperatures compared to rod magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Two magnets (attraction) - field collision
MW 4x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.83 kg / 6.25 lbs 6 138 Gs	0.43 kg / 0.94 lbs 425 g / 4.2 N	N/A
1 mm	1.63 kg / 3.59 lbs 9 174 Gs	0.24 kg / 0.54 lbs 244 g / 2.4 N	1.47 kg / 3.23 lbs ~0 Gs
2 mm	0.86 kg / 1.89 lbs 6 655 Gs	0.13 kg / 0.28 lbs 129 g / 1.3 N	0.77 kg / 1.70 lbs ~0 Gs
3 mm	0.44 kg / 0.97 lbs 4 777 Gs	0.07 kg / 0.15 lbs 66 g / 0.7 N	0.40 kg / 0.88 lbs ~0 Gs
5 mm	0.13 kg / 0.28 lbs 2 561 Gs	0.02 kg / 0.04 lbs 19 g / 0.2 N	0.11 kg / 0.25 lbs ~0 Gs
10 mm	0.01 kg / 0.03 lbs 778 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 179 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
50 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
60 mm	0.00 kg / 0.00 lbs 12 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 8 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 6 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 4 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 3 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 much further distance than a magnet and sheet setup. The setup of magnet-to-magnet generates a stronger field and a further horizon of operation. Want to build a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is huge. The repulsion force is marginally weaker than the attraction, but still impressive.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
Important: Calculations refer to friction force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - precautionary measures
MW 4x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Mechanical watch	20 Gs (2.0 mT)	2.0 cm
Mobile device	40 Gs (4.0 mT)	1.5 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Powerful magnet radiation poses a large risk to electronics as well as pacemakers. These NdFeB products produce a field that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, car keys, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MW 4x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.61 km/h (5.17 m/s)	0.01 J
30 mm	32.23 km/h (8.95 m/s)	0.04 J
50 mm	41.61 km/h (11.56 m/s)	0.06 J
100 mm	58.84 km/h (16.35 m/s)	0.13 J

NdFeB products are very brittle – a violent impact against metal can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can cause material chips or injury to skin. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Corrosion resistance
MW 4x10 / 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 4x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	864 Mx	8.6 µWb
P_c Coefficient	1.31	High (Stable)

Total magnetic flux emitted by the pole surface. Essential parameter for generator designers as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 4x10 / N38

Environment	Effective steel pull	Effect
Air (land)	0.32 kg	Standard
Water (riverbed)	0.37 kg (+0.05 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

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

2. Plate thickness effect

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

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.31

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: 010075-2026

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This product is an extremely powerful rod magnet, made from modern NdFeB material, which, at dimensions of Ø4x10 mm, guarantees maximum efficiency. This specific item features an accuracy of ±0.1mm and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.32 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 3.16 N with a weight of only 0.94 g, this rod is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating 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 high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø4x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 4 mm and height 10 mm. The key parameter here is the holding force amounting to approximately 0.32 kg (force ~3.16 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, 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 4 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.

Strengths as well as weaknesses of neodymium magnets.

Pros

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

They retain attractive force for around ten years – the loss is just ~1% (based on simulations),
Neodymium magnets are characterized by remarkably resistant to demagnetization caused by external field sources,
Thanks to the metallic finish, the coating of Ni-Cu-Ni, gold-plated, or silver gives an elegant appearance,
They are known for high magnetic induction at the operating surface, making them more effective,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
Considering the possibility of precise molding and customization to unique solutions, magnetic components can be produced in a variety of geometric configurations, which amplifies use scope,
Versatile presence in advanced technology sectors – they are used in computer drives, electric drive systems, medical equipment, also other advanced devices.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Disadvantages of neodymium magnets:

To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets experience a drop in force. 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
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Limited possibility of creating nuts in the magnet and complicated shapes - preferred is casing - magnet mounting.
Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these devices can complicate diagnosis medical when they are in the body.
With mass production the cost of neodymium magnets is economically unviable,

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

The declared magnet strength refers to the maximum value, obtained under laboratory conditions, namely:

on a block made of mild steel, perfectly concentrating the magnetic flux
whose thickness reaches at least 10 mm
with an ideally smooth touching surface
without any air gap between the magnet and steel
under axial application of breakaway force (90-degree angle)
at ambient temperature room level

Determinants of lifting force in real conditions

Bear in mind that the application force will differ depending on the following factors, in order of importance:

Distance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Angle of force application – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped into the air.
Chemical composition of the base – mild steel gives the best results. Higher carbon content decrease magnetic properties and lifting capacity.
Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Thermal factor – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Safety rules for work with neodymium magnets

Keep away from computers

Avoid bringing magnets close to a purse, laptop, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Danger to pacemakers

Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Physical harm

Large magnets can break fingers instantly. Never put your hand between two strong magnets.

Impact on smartphones

GPS units and smartphones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Safe operation

Handle magnets with awareness. Their powerful strength can surprise even experienced users. Plan your moves and do not underestimate their power.

Heat warning

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. This process is irreversible.

No play value

Always store magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are tragic.

Sensitization to coating

Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction appears, immediately stop handling magnets and use protective gear.

Flammability

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Eye protection

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

Important! Looking for details? Read our article: Are neodymium magnets dangerous?

MW 4x10 / N38 - cylindrical magnet

Detailed specification - MW 4x10 / 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 4x10 / N38

Table 2: Shear force (wall) MW 4x10 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 4x10 / N38

Table 4: Material efficiency (substrate influence) - power losses MW 4x10 / N38

Table 5: Thermal stability (stability) - power drop MW 4x10 / N38

Table 6: Two magnets (attraction) - field collision MW 4x10 / N38

Table 7: Protective zones (implants) - precautionary measures MW 4x10 / N38

Table 8: Collisions (cracking risk) - warning MW 4x10 / N38

Table 9: Corrosion resistance MW 4x10 / N38

Table 10: Construction data (Flux) MW 4x10 / N38

Table 11: Underwater work (magnet fishing) MW 4x10 / N38

1. Sliding resistance

2. Plate thickness effect

3. Power loss vs temp

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

Chemical composition

Sustainability

Magnet pull force

Magnetic Induction

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MPL 5x5x2 / N38 - lamellar magnet

MW 15x10 / N38 - cylindrical magnet

SM 32x300 [2xM8] / N52 - magnetic separator

Strengths as well as weaknesses of neodymium magnets.

Pros

Disadvantages

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

Determinants of lifting force in real conditions

Safety rules for work with neodymium magnets

Keep away from computers

Danger to pacemakers

Physical harm

Impact on smartphones

Safe operation

Heat warning

No play value

Sensitization to coating

Flammability

Eye protection

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 4x10 / N38

Table 2: Shear force (wall)
MW 4x10 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 4x10 / N38

Table 4: Material efficiency (substrate influence) - power losses
MW 4x10 / N38

Table 5: Thermal stability (stability) - power drop
MW 4x10 / N38

Table 6: Two magnets (attraction) - field collision
MW 4x10 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 4x10 / N38

Table 8: Collisions (cracking risk) - warning
MW 4x10 / N38

Table 9: Corrosion resistance
MW 4x10 / N38

Table 10: Construction data (Flux)
MW 4x10 / N38

Table 11: Underwater work (magnet fishing)
MW 4x10 / N38