Product available Ships tomorrow

MW 4x5 / 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 010077

GTIN/EAN: 5906301810766

5.00

Diameter Ø

4 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

0.47 g

Magnetization Direction

↑ axial

Load capacity

0.46 kg / 4.48 N

Magnetic Induction

573.83 mT / 5738 Gs

Coating

[NiCuNi] Nickel

view specifications »

0.320 ZŁ with VAT / pcs + price for transport

0.260 ZŁ net + 23% VAT / pcs

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Lifting power as well as structure of neodymium magnets can be calculated using our magnetic mass calculator.

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Detailed specification - MW 4x5 / N38 - cylindrical magnet

Specification / characteristics - MW 4x5 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010077
GTIN/EAN	5906301810766
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	5 mm [±0,1 mm]
Weight	0.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.46 kg / 4.48 N
Magnetic Induction ~ ?	573.83 mT / 5738 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 4x5 / 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

Technical analysis of the product - technical parameters

These data constitute the outcome of a physical calculation. Values rely on models for the class Nd₂Fe₁₄B. Real-world conditions may differ from theoretical values. Use these calculations as a preliminary roadmap when designing systems.

Table 1: Static pull force (pull vs distance) - characteristics
MW 4x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5727 Gs 572.7 mT	0.46 kg / 1.01 lbs 460.0 g / 4.5 N	weak grip
1 mm	3109 Gs 310.9 mT	0.14 kg / 0.30 lbs 135.6 g / 1.3 N	weak grip
2 mm	1577 Gs 157.7 mT	0.03 kg / 0.08 lbs 34.9 g / 0.3 N	weak grip
3 mm	856 Gs 85.6 mT	0.01 kg / 0.02 lbs 10.3 g / 0.1 N	weak grip
5 mm	323 Gs 32.3 mT	0.00 kg / 0.00 lbs 1.5 g / 0.0 N	weak grip
10 mm	66 Gs 6.6 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	weak grip
15 mm	24 Gs 2.4 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
20 mm	11 Gs 1.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
30 mm	4 Gs 0.4 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip
50 mm	1 Gs 0.1 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Pulling power weakens significantly with every mm of spacing. Note that even a microscopic distance (e.g., dirt, varnish, veneer) noticeably weakens the grip. Magnetic products hold most effectively during direct contact; gap kills the force. Analyze how flashily the load capacity fall, when the product does not adhere tightly to the metal substrate. When designing the arrangement, avoid additional spacers.

Table 2: Shear force (wall)
MW 4x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.09 kg / 0.20 lbs 92.0 g / 0.9 N
1 mm	Stal (~0.2)	0.03 kg / 0.06 lbs 28.0 g / 0.3 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

The table below indicates the estimated holding capacity necessary to start the shifting of the magnet down on a upright metal surface (assuming typical friction). This parameter depends on the gap size between the magnet and the metal.

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 4x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 0.30 lbs 138.0 g / 1.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 0.20 lbs 92.0 g / 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 0.10 lbs 46.0 g / 0.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 0.51 lbs 230.0 g / 2.3 N

When hanging a magnet on a vertical plane (e.g., a board), it you can count on barely about 1/5 of its nominal power. Gravitational force and a weak degree of grip cause that products slip easier than they pop off the substrate. Designing a hanger? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will slide down under a noticeably lighter load. Utilizing a rubberized coating can effectively increase the grip.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 4x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.05 kg / 0.10 lbs 46.0 g / 0.5 N
1 mm	25%	0.12 kg / 0.25 lbs 115.0 g / 1.1 N
2 mm	50%	0.23 kg / 0.51 lbs 230.0 g / 2.3 N
3 mm	75%	0.35 kg / 0.76 lbs 345.0 g / 3.4 N
5 mm	100%	0.46 kg / 1.01 lbs 460.0 g / 4.5 N
10 mm	100%	0.46 kg / 1.01 lbs 460.0 g / 4.5 N
11 mm	100%	0.46 kg / 1.01 lbs 460.0 g / 4.5 N
12 mm	100%	0.46 kg / 1.01 lbs 460.0 g / 4.5 N

A thin metal plate is not enough to absorb the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To utilize 100% of this neodymium's power, you need a suitably thick backing of metal. The saturation phenomenon means that on sheet metal structures (e.g., thin profiles), the magnet holds weaker. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MW 4x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.46 kg / 1.01 lbs 460.0 g / 4.5 N	OK
40 °C	-2.2%	0.45 kg / 0.99 lbs 449.9 g / 4.4 N	OK
60 °C	-4.4%	0.44 kg / 0.97 lbs 439.8 g / 4.3 N	OK
80 °C	-6.6%	0.43 kg / 0.95 lbs 429.6 g / 4.2 N
100 °C	-28.8%	0.33 kg / 0.72 lbs 327.5 g / 3.2 N

Standard neodymium magnets lose power past the thermal threshold. Protect against heat – excessive heat can permanently damage this magnet. As the temperature rises, the neodymium's capacity momentarily drops. Avoid using this magnet close to heaters higher than its working range. Exceeding the critical threshold will lead to permanent loss of magnetic properties.

*Important note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) may lose charge permanently at lower temperatures than long magnets. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 4x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	2.54 kg / 5.60 lbs 6 049 Gs	0.38 kg / 0.84 lbs 381 g / 3.7 N	N/A
1 mm	1.45 kg / 3.19 lbs 8 646 Gs	0.22 kg / 0.48 lbs 217 g / 2.1 N	1.30 kg / 2.87 lbs ~0 Gs
2 mm	0.75 kg / 1.65 lbs 6 218 Gs	0.11 kg / 0.25 lbs 112 g / 1.1 N	0.67 kg / 1.49 lbs ~0 Gs
3 mm	0.38 kg / 0.83 lbs 4 412 Gs	0.06 kg / 0.12 lbs 57 g / 0.6 N	0.34 kg / 0.75 lbs ~0 Gs
5 mm	0.10 kg / 0.23 lbs 2 299 Gs	0.02 kg / 0.03 lbs 15 g / 0.2 N	0.09 kg / 0.20 lbs ~0 Gs
10 mm	0.01 kg / 0.02 lbs 646 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
20 mm	0.00 kg / 0.00 lbs 132 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 12 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 7 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 5 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 3 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 2 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 2 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 wider radius than a magnet and steel setup. Such a system of two magnets produces a massive flux and a wider radius of performance. Designing a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is extreme. The levitation is a bit weaker than the attraction, but still large.
*The magnetic induction between like poles is approximately ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Note: Figures demonstrate shear force of dual same magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Protective zones (implants) - warnings
MW 4x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.0 cm
Hearing aid	10 Gs (1.0 mT)	2.5 cm
Timepiece	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 real danger to IT equipment and pacemakers. These magnets generate a flux that disrupts operation of digital equipment. Remember: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, remotes, membranes, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MW 4x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.55 km/h (8.76 m/s)	0.02 J
30 mm	54.65 km/h (15.18 m/s)	0.05 J
50 mm	70.55 km/h (19.60 m/s)	0.09 J
100 mm	99.77 km/h (27.71 m/s)	0.18 J

Magnetic elements are prone to chipping – a violent impact against metal can result in shattering. Control the attraction moment – a magnet released freely speeds with massive force. Striking energy can trigger coating fragments or injury to fingers. Hold the magnet firmly 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. Wear safety glasses when playing with powerful specimens.

Table 9: Surface protection spec
MW 4x5 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 4x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	760 Mx	7.6 µWb
P_c Coefficient	1.00	High (Stable)

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

Table 11: Physics of underwater searching
MW 4x5 / N38

Environment	Effective steel pull	Effect
Air (land)	0.46 kg	Standard
Water (riverbed)	0.53 kg (+0.07 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

In water, the magnet feels stronger thanks to Archimedes' principle. Buoyancy helps in lifting finds.

1. Shear force

*Note: On a vertical wall, the magnet retains only approx. 20-30% of its perpendicular strength.

2. Steel saturation

*Thin steel (e.g. computer case) drastically weakens the holding force.

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 1.00

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

Elemental analysis

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: 010077-2026

Magnet Unit Converter

Force (pull)

Force in kg

Force (N)

lbs

Magnetic Field

Gauss (Gs)

Induction (T)

Simply fill in one field, and the converter compute the rest automatically.

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MW 4x5 / N38 - cylindrical magnet

0.320 ZŁ brutto / pcs

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UMC 75x11/6x18 / N38 - cylindrical magnetic holder

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SM 32x325 [2xM8] / N42 - magnetic separator

971.70 ZŁ brutto / pcs

This product is an exceptionally strong cylindrical magnet, made from durable NdFeB material, which, at dimensions of Ø4x5 mm, guarantees maximum efficiency. The MW 4x5 / N38 model features a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for the most demanding engineers and designers. As a magnetic rod with significant force (approx. 0.46 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 4.48 N with a weight of only 0.47 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø4x5), 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 Ø4x5 mm, which, at a weight of 0.47 g, makes it an element with impressive magnetic energy density. The value of 4.48 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.47 g. The product has a [NiCuNi] coating, which protects the surface 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 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 diametrically if your project requires it.

Strengths as well as weaknesses of rare earth magnets.

Strengths

Besides their remarkable magnetic power, neodymium magnets offer the following advantages:

Their power remains stable, and after approximately 10 years it drops only by ~1% (theoretically),
Neodymium magnets remain remarkably resistant to loss of magnetic properties caused by magnetic disturbances,
In other words, due to the smooth finish of silver, the element gains a professional look,
The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to modularity in shaping and the capacity to adapt to specific needs,
Huge importance in high-tech industry – they are used in data components, motor assemblies, advanced medical instruments, as well as complex engineering applications.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets: tips and applications.

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
We recommend cover - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. It is also worth noting that tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
With budget limitations the cost of neodymium magnets is a challenge,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

The lifting capacity listed is a result of laboratory testing conducted under specific, ideal conditions:

with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
whose transverse dimension equals approx. 10 mm
with an ideally smooth contact surface
without the slightest clearance between the magnet and steel
under perpendicular force vector (90-degree angle)
at standard ambient temperature

Impact of factors on magnetic holding capacity in practice

Holding efficiency is affected by working environment parameters, mainly (from most important):

Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
Direction of force – highest force is available only during perpendicular pulling. The resistance to sliding of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – too thin sheet does not close the flux, causing part of the power to be escaped to the other side.
Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Temperature – temperature increase results in weakening of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet and the plate lowers the holding force.

Safe handling of neodymium magnets

Threat to navigation

Note: rare earth magnets produce a field that interferes with precision electronics. Keep a separation from your mobile, tablet, and GPS.

Finger safety

Big blocks can smash fingers instantly. Do not put your hand betwixt two attracting surfaces.

Eye protection

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Fire warning

Combustion risk: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.

Nickel coating and allergies

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

Protect data

Do not bring magnets near a wallet, laptop, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

ICD Warning

Individuals with a heart stimulator have to keep an absolute distance from magnets. The magnetism can interfere with the operation of the implant.

This is not a toy

Always store magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are fatal.

Permanent damage

Do not overheat. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

Caution required

Handle magnets consciously. Their huge power can shock even experienced users. Be vigilant and respect their force.

Safety First! More info about risks in the article: Safety of working with magnets.

MW 4x5 / N38 - cylindrical magnet

Detailed specification - MW 4x5 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - technical parameters

Table 1: Static pull force (pull vs distance) - characteristics MW 4x5 / N38

Table 2: Shear force (wall) MW 4x5 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces MW 4x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 4x5 / N38

Table 5: Thermal stability (material behavior) - power drop MW 4x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 4x5 / N38

Table 7: Protective zones (implants) - warnings MW 4x5 / N38

Table 8: Collisions (kinetic energy) - warning MW 4x5 / N38

Table 9: Surface protection spec MW 4x5 / N38

Table 10: Construction data (Flux) MW 4x5 / N38

Table 11: Physics of underwater searching MW 4x5 / N38

1. Shear force

2. Steel saturation

3. Thermal stability

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

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

Other offers

MW 4x5 / N38 - cylindrical magnet

MPL 20x8x6 / N38 - lamellar magnet

UMC 75x11/6x18 / N38 - cylindrical magnetic holder

SM 32x325 [2xM8] / N42 - magnetic separator

Strengths as well as weaknesses of rare earth magnets.

Strengths

Disadvantages

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what it depends on?

Impact of factors on magnetic holding capacity in practice

Safe handling of neodymium magnets

Threat to navigation

Finger safety

Eye protection

Fire warning

Nickel coating and allergies

Protect data

ICD Warning

This is not a toy

Permanent damage

Caution required

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - characteristics
MW 4x5 / N38

Table 2: Shear force (wall)
MW 4x5 / N38

Table 3: Wall mounting (sliding) - behavior on slippery surfaces
MW 4x5 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 4x5 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 4x5 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 4x5 / N38

Table 7: Protective zones (implants) - warnings
MW 4x5 / N38

Table 8: Collisions (kinetic energy) - warning
MW 4x5 / N38

Table 9: Surface protection spec
MW 4x5 / N38

Table 10: Construction data (Flux)
MW 4x5 / N38

Table 11: Physics of underwater searching
MW 4x5 / N38