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MW 4x8 / 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 010079

GTIN/EAN: 5906301810780

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

8 mm [±0,1 mm]

Weight

0.75 g

Magnetization Direction

↑ axial

Load capacity

0.35 kg / 3.48 N

Magnetic Induction

599.59 mT / 5996 Gs

Coating

[NiCuNi] Nickel

view specifications »

0.701 ZŁ with VAT / pcs + price for transport

0.570 ZŁ net + 23% VAT / pcs

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Force along with structure of neodymium magnets can be analyzed using our magnetic mass calculator.

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Technical data of the product - MW 4x8 / N38 - cylindrical magnet

Specification / characteristics - MW 4x8 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010079
GTIN/EAN	5906301810780
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	8 mm [±0,1 mm]
Weight	0.75 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.35 kg / 3.48 N
Magnetic Induction ~ ?	599.59 mT / 5996 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x8 / 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 product - report

The following information are the outcome of a engineering simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Actual conditions may deviate from the simulation results. Please consider these data as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - characteristics
MW 4x8 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5984 Gs 598.4 mT	0.35 kg / 0.77 pounds 350.0 g / 3.4 N	weak grip
1 mm	3280 Gs 328.0 mT	0.11 kg / 0.23 pounds 105.1 g / 1.0 N	weak grip
2 mm	1696 Gs 169.6 mT	0.03 kg / 0.06 pounds 28.1 g / 0.3 N	weak grip
3 mm	941 Gs 94.1 mT	0.01 kg / 0.02 pounds 8.7 g / 0.1 N	weak grip
5 mm	371 Gs 37.1 mT	0.00 kg / 0.00 pounds 1.3 g / 0.0 N	weak grip
10 mm	82 Gs 8.2 mT	0.00 kg / 0.00 pounds 0.1 g / 0.0 N	weak grip
15 mm	31 Gs 3.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
20 mm	15 Gs 1.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
30 mm	5 Gs 0.5 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Magnetic force decreases drastically with every mm of distance. Note that even a microscopic distance (e.g., contamination, paint, veneer) significantly diminishes the holding power. Neodymiums work strongest during direct contact; distance nullifies the power. Observe how quickly the pull force plummet, when the product does not touch tightly to the metal substrate. When planning the arrangement, eliminate redundant distances.

Table 2: Shear force (vertical surface)
MW 4x8 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.07 kg / 0.15 pounds 70.0 g / 0.7 N
1 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 22.0 g / 0.2 N
2 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 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

This section indicates the theoretical holding capacity needed to start the slippage of the magnet downwards along a vertical steel wall (assuming typical friction coefficient). This parameter is relative to the air gap between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 4x8 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.11 kg / 0.23 pounds 105.0 g / 1.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.07 kg / 0.15 pounds 70.0 g / 0.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.08 pounds 35.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.18 kg / 0.39 pounds 175.0 g / 1.7 N

When placing a magnet on a vertical wall (e.g., a board), it will maintain barely about 1/5 of its maximum pull force. Gravitational force and a low friction coefficient cause that holders slip faster than they pull off. Designing a wall mount? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the element will give way down under a much lighter cargo. Utilizing a rubberized pad can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 4x8 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.08 pounds 35.0 g / 0.3 N
1 mm	25%	0.09 kg / 0.19 pounds 87.5 g / 0.9 N
2 mm	50%	0.18 kg / 0.39 pounds 175.0 g / 1.7 N
3 mm	75%	0.26 kg / 0.58 pounds 262.5 g / 2.6 N
5 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N
10 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N
11 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N
12 mm	100%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N

A too thin steel cannot absorb the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the holding will be smaller. To utilize full efficiency of this neodymium's potential, you require a sufficiently solid element of metal. The material oversaturation means that on delicate walls (e.g., thin profiles), the magnet shows lower pull force. We suggest choosing the steel thickness based on the following data.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 4x8 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.35 kg / 0.77 pounds 350.0 g / 3.4 N	OK
40 °C	-2.2%	0.34 kg / 0.75 pounds 342.3 g / 3.4 N	OK
60 °C	-4.4%	0.33 kg / 0.74 pounds 334.6 g / 3.3 N	OK
80 °C	-6.6%	0.33 kg / 0.72 pounds 326.9 g / 3.2 N
100 °C	-28.8%	0.25 kg / 0.55 pounds 249.2 g / 2.4 N

Ordinary NdFeB products change their properties strength above the temperature limit. Protect against heat – high temperature can irreversibly damage this magnet. With increasing heat, the magnet's force momentarily decreases. Avoid using this magnet in hot environments higher than its operating temperature limit. Ignoring the limit will result in destruction of magnetic properties.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Low-profile magnets (low Pc) are more susceptible to demagnetization under lower heat stress than long magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 4x8 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.77 kg / 6.12 pounds 6 121 Gs	0.42 kg / 0.92 pounds 416 g / 4.1 N	N/A
1 mm	1.59 kg / 3.51 pounds 9 063 Gs	0.24 kg / 0.53 pounds 239 g / 2.3 N	1.43 kg / 3.16 pounds ~0 Gs
2 mm	0.83 kg / 1.84 pounds 6 559 Gs	0.12 kg / 0.28 pounds 125 g / 1.2 N	0.75 kg / 1.65 pounds ~0 Gs
3 mm	0.43 kg / 0.94 pounds 4 694 Gs	0.06 kg / 0.14 pounds 64 g / 0.6 N	0.38 kg / 0.85 pounds ~0 Gs
5 mm	0.12 kg / 0.27 pounds 2 498 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.24 pounds ~0 Gs
10 mm	0.01 kg / 0.02 pounds 743 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
20 mm	0.00 kg / 0.00 pounds 165 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
50 mm	0.00 kg / 0.00 pounds 17 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 10 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 7 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 5 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 3 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 3 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets interact from a wider radius than a neodymium and metal setup. The connection of magnet-to-magnet creates a more powerful interaction and a wider radius of operation. Want to build a strong closure? Apply two magnets instead of one magnet and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is marginally weaker than the connection force, but still significant.
*Flux density in repulsion mode drops to ~0 Gs in the exact middle between the magnets (resulting from vector opposition).
* Results show shear force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - warnings
MW 4x8 / 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
Timepiece	20 Gs (2.0 mT)	2.0 cm
Phone / Smartphone	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

Extremely neodym field is a large risk to IT equipment as well as pacemakers. These neodymiums produce a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - warning
MW 4x8 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	21.79 km/h (6.05 m/s)	0.01 J
30 mm	37.74 km/h (10.48 m/s)	0.04 J
50 mm	48.72 km/h (13.53 m/s)	0.07 J
100 mm	68.89 km/h (19.14 m/s)	0.14 J

Magnetic elements are very brittle – a violent impact against metal can result in shattering. Watch the impact speed – a magnet released freely turns into a projectile. Impact energy can cause material chips or dangerous crushing to skin. Always hold the magnet during installation so it doesn't slam with momentum 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 4x8 / 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 4x8 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	836 Mx	8.4 µWb
P_c Coefficient	1.21	High (Stable)

Flux value passing through the pole surface. Key data for generator designers and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 4x8 / N38

Environment	Effective steel pull	Effect
Air (land)	0.35 kg	Standard
Water (riverbed)	0.40 kg (+0.05 kg buoyancy gain)	+14.5%

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

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

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

2. Plate thickness effect

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.21

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. 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

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%

Ecology and recycling (GPSR)

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: 010079-2026

Measurement Calculator

Magnet pull force

Force in kg

Newtons (N)

Pounds (lbs)

Field Strength

Induction (T)

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This product is an extremely powerful cylinder magnet, composed of modern NdFeB material, which, at dimensions of Ø4x8 mm, guarantees maximum efficiency. This specific item features 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. 0.35 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 3.48 N with a weight of only 0.75 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 4.1 mm) using epoxy glues. To ensure stability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for the majority of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø4x8), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø4x8 mm, which, at a weight of 0.75 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 0.35 kg (force ~3.48 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 oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 8 mm), which means that the N and S poles are located on the flat, circular surfaces. 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.

Pros as well as cons of neodymium magnets.

Benefits

Besides their tremendous strength, neodymium magnets offer the following advantages:

They retain magnetic properties for almost 10 years – the drop is just ~1% (in theory),
Neodymium magnets are characterized by remarkably resistant to magnetic field loss caused by magnetic disturbances,
In other words, due to the glossy surface of silver, the element becomes visually attractive,
Magnets are characterized by exceptionally strong magnetic induction on the outer layer,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Due to the potential of free shaping and adaptation to specialized projects, neodymium magnets can be created in a wide range of geometric configurations, which increases their versatility,
Key role in high-tech industry – they find application in hard drives, brushless drives, medical equipment, as well as multitasking production systems.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Weaknesses

What to avoid - cons of neodymium magnets: weaknesses and usage proposals

At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of creating nuts in the magnet and complicated forms - recommended is casing - magnetic holder.
Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small components of these products are able to complicate diagnosis medical in case of swallowing.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Highest magnetic holding force – what it depends on?

The specified lifting capacity represents the maximum value, obtained under laboratory conditions, namely:

using a sheet made of low-carbon steel, acting as a circuit closing element
with a cross-section of at least 10 mm
characterized by smoothness
under conditions of gap-free contact (metal-to-metal)
under perpendicular application of breakaway force (90-degree angle)
at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity is affected by specific conditions, mainly (from most important):

Clearance – the presence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
Angle of force application – maximum parameter is available only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick plate causes magnetic saturation, causing part of the flux to be lost into the air.
Material composition – different alloys attracts identically. High carbon content worsen the attraction effect.
Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
Thermal factor – high temperature weakens pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets

Physical harm

Big blocks can smash fingers instantly. Do not place your hand between two strong magnets.

Protective goggles

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. We recommend safety glasses.

Skin irritation risks

Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, avoid direct skin contact and opt for versions in plastic housing.

Cards and drives

Powerful magnetic fields can destroy records on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Safe operation

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

Machining danger

Dust produced during machining of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.

Heat sensitivity

Keep cool. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Phone sensors

A powerful magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Do not bring magnets near a smartphone to prevent damaging the sensors.

Swallowing risk

Strictly keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are very dangerous.

Medical interference

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.

Security! Learn more about hazards in the article: Safety of working with magnets.

MW 4x8 / N38 - cylindrical magnet

Technical data of the product - MW 4x8 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - report

Table 1: Static force (force vs gap) - characteristics MW 4x8 / N38

Table 2: Shear force (vertical surface) MW 4x8 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 4x8 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 4x8 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 4x8 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 4x8 / N38

Table 7: Safety (HSE) (implants) - warnings MW 4x8 / N38

Table 8: Dynamics (cracking risk) - warning MW 4x8 / N38

Table 9: Corrosion resistance MW 4x8 / N38

Table 10: Construction data (Flux) MW 4x8 / N38

Table 11: Underwater work (magnet fishing) MW 4x8 / N38

1. Shear force

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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Pros as well as cons of neodymium magnets.

Benefits

Weaknesses

Lifting parameters

Highest magnetic holding force – what it depends on?

Impact of factors on magnetic holding capacity in practice

Precautions when working with NdFeB magnets

Physical harm

Protective goggles

Skin irritation risks

Cards and drives

Safe operation

Machining danger

Heat sensitivity

Phone sensors

Swallowing risk

Medical interference

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MW 4x8 / N38

Table 2: Shear force (vertical surface)
MW 4x8 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 4x8 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 4x8 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 4x8 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 4x8 / N38

Table 7: Safety (HSE) (implants) - warnings
MW 4x8 / N38

Table 8: Dynamics (cracking risk) - warning
MW 4x8 / N38

Table 9: Corrosion resistance
MW 4x8 / N38

Table 10: Construction data (Flux)
MW 4x8 / N38

Table 11: Underwater work (magnet fishing)
MW 4x8 / N38