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MW 2x4 / 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 010055

GTIN/EAN: 5906301810544

5.00

Diameter Ø

2 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

0.09 g

Magnetization Direction

↑ axial

Load capacity

0.09 kg / 0.86 N

Magnetic Induction

597.70 mT / 5977 Gs

Coating

[NiCuNi] Nickel

check technical data »

0.209 ZŁ with VAT / pcs + price for transport

0.1700 ZŁ net + 23% VAT / pcs

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Technical - MW 2x4 / N38 - cylindrical magnet

Specification / characteristics - MW 2x4 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010055
GTIN/EAN	5906301810544
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	2 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	0.09 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.09 kg / 0.86 N
Magnetic Induction ~ ?	597.70 mT / 5977 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 2x4 / 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 analysis of the product - data

The following values constitute the outcome of a engineering simulation. Results are based on models for the class Nd₂Fe₁₄B. Operational conditions might slightly differ from theoretical values. Treat these calculations as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs gap) - characteristics
MW 2x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5954 Gs 595.4 mT	0.09 kg / 0.20 lbs 90.0 g / 0.9 N	safe
1 mm	1696 Gs 169.6 mT	0.01 kg / 0.02 lbs 7.3 g / 0.1 N	safe
2 mm	570 Gs 57.0 mT	0.00 kg / 0.00 lbs 0.8 g / 0.0 N	safe
3 mm	256 Gs 25.6 mT	0.00 kg / 0.00 lbs 0.2 g / 0.0 N	safe
5 mm	82 Gs 8.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
10 mm	15 Gs 1.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
15 mm	5 Gs 0.5 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
20 mm	2 Gs 0.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
30 mm	1 Gs 0.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe
50 mm	0 Gs 0.0 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	safe

Grip strength weakens sharply with every mm of gap. Remember that even a very thin break (e.g., contamination, varnish, rust) strongly weakens the grip. Magnetic products work strongest at the point of direct contact; gap weakens the power. Observe how rapidly the load capacity fall, when the product does not touch directly to the metal substrate. When designing the arrangement, discard redundant distances.

Table 2: Slippage load (wall)
MW 2x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
1 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
2 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 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 calculates the theoretical holding capacity sufficient to initiate the slippage of the magnet vertically on a vertical metal surface (considering standard friction coefficient). This parameter is a function of the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 2x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.03 kg / 0.06 lbs 27.0 g / 0.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.01 kg / 0.02 lbs 9.0 g / 0.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.05 kg / 0.10 lbs 45.0 g / 0.4 N

When hanging a magnet on a upright surface (e.g., a board), it will maintain just approx. 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip influence the fact that holders move down easier than they detach. Want to create a wall mount? Remember that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will give way down under a significantly smaller load. Using a rubber layer can significantly raise the stability.

Table 4: Material efficiency (saturation) - power losses
MW 2x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.01 kg / 0.02 lbs 9.0 g / 0.1 N
1 mm	25%	0.02 kg / 0.05 lbs 22.5 g / 0.2 N
2 mm	50%	0.05 kg / 0.10 lbs 45.0 g / 0.4 N
3 mm	75%	0.07 kg / 0.15 lbs 67.5 g / 0.7 N
5 mm	100%	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
10 mm	100%	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
11 mm	100%	0.09 kg / 0.20 lbs 90.0 g / 0.9 N
12 mm	100%	0.09 kg / 0.20 lbs 90.0 g / 0.9 N

A thin sheet is not enough to focus the full magnetic flux, which weakens actual performance of the magnet. Should you install a neodymium to a too thin substrate, the magnetism will penetrate right through and the attraction force will be weaker. To utilize the maximum of this neodymium's power, you need a suitably thick piece of metal. The material oversaturation means that on thin elements (e.g., thin profiles), the holder shows lower pull force. We advise picking the steel thickness based on the following data.

Table 5: Thermal stability (material behavior) - power drop
MW 2x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.09 kg / 0.20 lbs 90.0 g / 0.9 N	OK
40 °C	-2.2%	0.09 kg / 0.19 lbs 88.0 g / 0.9 N	OK
60 °C	-4.4%	0.09 kg / 0.19 lbs 86.0 g / 0.8 N	OK
80 °C	-6.6%	0.08 kg / 0.19 lbs 84.1 g / 0.8 N
100 °C	-28.8%	0.06 kg / 0.14 lbs 64.1 g / 0.6 N

Classic neodymiums change their properties power above the temperature limit. Watch out for overheating – heat can permanently damage this product. As the temperature rises, the magnet's force momentarily lowers. Refrain from using this magnet close to ovens exceeding its safe range. Too high temperature will cause irreversible degradation of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, and the Permeance Coefficient Pc. Low-profile magnets (pancake types) are more susceptible to demagnetization at lower temperatures than long magnets. Warning indicator in the table points to a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 2x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	0.69 kg / 1.51 lbs 6 090 Gs	0.10 kg / 0.23 lbs 103 g / 1.0 N	N/A
1 mm	0.21 kg / 0.46 lbs 6 559 Gs	0.03 kg / 0.07 lbs 31 g / 0.3 N	0.19 kg / 0.41 lbs ~0 Gs
2 mm	0.06 kg / 0.12 lbs 3 391 Gs	0.01 kg / 0.02 lbs 8 g / 0.1 N	0.05 kg / 0.11 lbs ~0 Gs
3 mm	0.02 kg / 0.04 lbs 1 883 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.03 lbs ~0 Gs
5 mm	0.00 kg / 0.01 lbs 743 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
10 mm	0.00 kg / 0.00 lbs 165 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 30 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 3 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 2 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 1 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 1 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 0 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 0 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a much further distance than a magnet and steel setup. Such a system of magnet-to-magnet generates a stronger field and a wider radius of action. Want to build a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration is approximately ~0 Gs at the geometric center between the magnets (due to field cancellation).
Note: Figures apply to friction force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 2x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	2.0 cm
Hearing aid	10 Gs (1.0 mT)	1.5 cm
Timepiece	20 Gs (2.0 mT)	1.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	1.0 cm
Remote	50 Gs (5.0 mT)	1.0 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 real danger to IT equipment as well as pacemakers. These NdFeB products generate a field that disrupts operation of digital equipment. Remember: the unseen radiation penetrates the body and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: automatic timepieces, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - collision effects
MW 2x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.89 km/h (8.86 m/s)	0.00 J
30 mm	55.24 km/h (15.34 m/s)	0.01 J
50 mm	71.31 km/h (19.81 m/s)	0.02 J
100 mm	100.85 km/h (28.01 m/s)	0.04 J

Neodymium magnets are very brittle – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a magnet released freely speeds with massive force. Kinetic force can cause material chips or painful pinches to fingers. Be sure to control the product during mounting 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. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MW 2x4 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MW 2x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	209 Mx	2.1 µWb
P_c Coefficient	1.21	High (Stable)

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

Table 11: Physics of underwater searching
MW 2x4 / N38

Environment	Effective steel pull	Effect
Air (land)	0.09 kg	Standard
Water (riverbed)	0.10 kg (+0.01 kg buoyancy gain)	+14.5%

Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Water displaces steel, making heavy objects slightly lighter. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds merely approx. 20-30% of its perpendicular strength.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) drastically reduces the holding force.

3. Temperature resistance

*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) = 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

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%

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: 010055-2026

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MPL 10x10x10 / N38 - lamellar magnet

5.29 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

189.91 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread

7.38 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMT 12x20 orange / N38 - board holder

1.894 ZŁ brutto / pcs

This product is an exceptionally strong cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø2x4 mm, guarantees the highest energy density. This specific item is characterized by an accuracy of ±0.1mm and professional build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 0.09 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 0.86 N with a weight of only 0.09 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the best method is to glue them into holes with a slightly larger diameter (e.g., 2.1 mm) using two-component epoxy glues. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.

Magnets NdFeB grade N38 are strong enough for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø2x4), 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 2 mm and height 4 mm. The value of 0.86 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.09 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 4 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 through the diameter if your project requires it.

Advantages as well as disadvantages of neodymium magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:

They retain attractive force for almost 10 years – the drop is just ~1% (based on simulations),
They maintain their magnetic properties even under strong external field,
The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a concentrated magnetic field – this is one of their assets,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Thanks to freedom in constructing and the capacity to adapt to specific needs,
Versatile presence in high-tech industry – they are utilized in mass storage devices, electric motors, precision medical tools, as well as modern systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also raises their durability
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
We recommend casing - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated shapes.
Health risk related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child safety. Furthermore, small components of these products are able to complicate diagnosis medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

The lifting capacity listed is a theoretical maximum value performed under specific, ideal conditions:

using a sheet made of high-permeability steel, functioning as a magnetic yoke
whose thickness reaches at least 10 mm
characterized by smoothness
with direct contact (without coatings)
under perpendicular application of breakaway force (90-degree angle)
at room temperature

Magnet lifting force in use – key factors

In practice, the actual lifting capacity is determined by many variables, presented from crucial:

Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
Steel type – mild steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
Surface finish – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Warnings

Precision electronics

A powerful magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

Allergic reactions

Certain individuals experience a contact allergy to Ni, which is the standard coating for NdFeB magnets. Prolonged contact might lead to dermatitis. We strongly advise wear safety gloves.

Implant safety

Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or request help to work with the magnets.

Protective goggles

Beware of splinters. Magnets can fracture upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Bodily injuries

Danger of trauma: The pulling power is so immense that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.

Product not for children

NdFeB magnets are not toys. Swallowing a few magnets may result in them attracting across intestines, which poses a critical condition and requires urgent medical intervention.

Cards and drives

Device Safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).

Maximum temperature

Regular neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.

Immense force

Be careful. Neodymium magnets act from a distance and snap with massive power, often faster than you can move away.

Machining danger

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Safety First! More info about hazards in the article: Magnet Safety Guide.

MW 2x4 / N38 - cylindrical magnet

Technical - MW 2x4 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the product - data

Table 1: Static force (pull vs gap) - characteristics MW 2x4 / N38

Table 2: Slippage load (wall) MW 2x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 2x4 / N38

Table 4: Material efficiency (saturation) - power losses MW 2x4 / N38

Table 5: Thermal stability (material behavior) - power drop MW 2x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range MW 2x4 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 2x4 / N38

Table 8: Collisions (cracking risk) - collision effects MW 2x4 / N38

Table 9: Surface protection spec MW 2x4 / N38

Table 10: Construction data (Pc) MW 2x4 / N38

Table 11: Physics of underwater searching MW 2x4 / N38

1. Wall mount (shear)

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Induction

See also proposals

MPL 10x10x10 / N38 - lamellar magnet

UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread

UMT 12x20 orange / N38 - board holder

Advantages as well as disadvantages of neodymium magnets.

Strengths

Cons

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

Magnet lifting force in use – key factors

Warnings

Precision electronics

Allergic reactions

Implant safety

Protective goggles

Bodily injuries

Product not for children

Cards and drives

Maximum temperature

Immense force

Machining danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MW 2x4 / N38

Table 2: Slippage load (wall)
MW 2x4 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 2x4 / N38

Table 4: Material efficiency (saturation) - power losses
MW 2x4 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 2x4 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field range
MW 2x4 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 2x4 / N38

Table 8: Collisions (cracking risk) - collision effects
MW 2x4 / N38

Table 9: Surface protection spec
MW 2x4 / N38

Table 10: Construction data (P_c)
MW 2x4 / N38

Table 11: Physics of underwater searching
MW 2x4 / N38