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MW 45x15 / 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 010070

GTIN/EAN: 5906301810698

5.00

Diameter Ø

45 mm [±0,1 mm]

Height

15 mm [±0,1 mm]

Weight

178.92 g

Magnetization Direction

↑ axial

Load capacity

48.55 kg / 476.32 N

Magnetic Induction

343.84 mT / 3438 Gs

Coating

[NiCuNi] Nickel

check specifications »

61.84 ZŁ with VAT / pcs + price for transport

50.28 ZŁ net + 23% VAT / pcs

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Technical details - MW 45x15 / N38 - cylindrical magnet

Specification / characteristics - MW 45x15 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010070
GTIN/EAN	5906301810698
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	45 mm [±0,1 mm]
Height	15 mm [±0,1 mm]
Weight	178.92 g
Magnetization Direction	↑ axial
Load capacity ~ ?	48.55 kg / 476.32 N
Magnetic Induction ~ ?	343.84 mT / 3438 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x15 / 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 simulation of the product - report

The following data constitute the result of a mathematical simulation. Values rely on models for the material Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Treat these data as a supplementary guide for designers.

Table 1: Static force (force vs distance) - interaction chart
MW 45x15 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3438 Gs 343.8 mT	48.55 kg / 107.03 pounds 48550.0 g / 476.3 N	critical level
1 mm	3318 Gs 331.8 mT	45.21 kg / 99.68 pounds 45214.3 g / 443.6 N	critical level
2 mm	3189 Gs 318.9 mT	41.76 kg / 92.07 pounds 41762.8 g / 409.7 N	critical level
3 mm	3054 Gs 305.4 mT	38.30 kg / 84.44 pounds 38303.2 g / 375.8 N	critical level
5 mm	2774 Gs 277.4 mT	31.61 kg / 69.69 pounds 31610.0 g / 310.1 N	critical level
10 mm	2090 Gs 209.0 mT	17.95 kg / 39.57 pounds 17948.5 g / 176.1 N	critical level
15 mm	1521 Gs 152.1 mT	9.50 kg / 20.95 pounds 9500.8 g / 93.2 N	warning
20 mm	1096 Gs 109.6 mT	4.94 kg / 10.88 pounds 4936.3 g / 48.4 N	warning
30 mm	585 Gs 58.5 mT	1.41 kg / 3.10 pounds 1407.9 g / 13.8 N	safe
50 mm	205 Gs 20.5 mT	0.17 kg / 0.38 pounds 172.6 g / 1.7 N	safe

Magnetic force weakens drastically with every mm of distance. Note that even a very thin break (e.g., contamination, varnish, rust) significantly diminishes the holding power. Neodymiums operate most effectively at the point of direct contact; gap nullifies the power. See how flashily the pull force fall, when the product does not adhere flatly to the steel surface. When designing the arrangement, avoid unnecessary gaps.

Table 2: Vertical load (wall)
MW 45x15 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	9.71 kg / 21.41 pounds 9710.0 g / 95.3 N
1 mm	Stal (~0.2)	9.04 kg / 19.93 pounds 9042.0 g / 88.7 N
2 mm	Stal (~0.2)	8.35 kg / 18.41 pounds 8352.0 g / 81.9 N
3 mm	Stal (~0.2)	7.66 kg / 16.89 pounds 7660.0 g / 75.1 N
5 mm	Stal (~0.2)	6.32 kg / 13.94 pounds 6322.0 g / 62.0 N
10 mm	Stal (~0.2)	3.59 kg / 7.91 pounds 3590.0 g / 35.2 N
15 mm	Stal (~0.2)	1.90 kg / 4.19 pounds 1900.0 g / 18.6 N
20 mm	Stal (~0.2)	0.99 kg / 2.18 pounds 988.0 g / 9.7 N
30 mm	Stal (~0.2)	0.28 kg / 0.62 pounds 282.0 g / 2.8 N
50 mm	Stal (~0.2)	0.03 kg / 0.07 pounds 34.0 g / 0.3 N

The table below calculates the approximate shear load necessary to cause the shifting of the magnet vertically along a vertical metal surface (considering typical friction). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 45x15 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	14.56 kg / 32.11 pounds 14565.0 g / 142.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	9.71 kg / 21.41 pounds 9710.0 g / 95.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	4.86 kg / 10.70 pounds 4855.0 g / 47.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	24.28 kg / 53.52 pounds 24275.0 g / 238.1 N

When placing a magnet on a vertical wall (e.g., a board), it you can count on barely about 1/5 of its nominal power. Gravity as well as a low friction coefficient cause that products slip faster than they detach. Planning a vertical fastening? Consider that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the element will slide down under a significantly smaller cargo. Application of an anti-slip layer can effectively raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 45x15 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	2.43 kg / 5.35 pounds 2427.5 g / 23.8 N
1 mm	13%	6.07 kg / 13.38 pounds 6068.8 g / 59.5 N
2 mm	25%	12.14 kg / 26.76 pounds 12137.5 g / 119.1 N
3 mm	38%	18.21 kg / 40.14 pounds 18206.2 g / 178.6 N
5 mm	63%	30.34 kg / 66.90 pounds 30343.8 g / 297.7 N
10 mm	100%	48.55 kg / 107.03 pounds 48550.0 g / 476.3 N
11 mm	100%	48.55 kg / 107.03 pounds 48550.0 g / 476.3 N
12 mm	100%	48.55 kg / 107.03 pounds 48550.0 g / 476.3 N

A thin sheet is incapable of conduct the full magnetic flux, which wastes potential of the holder. If you attach a powerful product to a too thin substrate, the flux will penetrate right through and the holding will be smaller. To utilize full efficiency of this neodymium's potential, you require a sufficiently solid backing of metal. The saturation effect means that on delicate walls (e.g., thin profiles), the product shows lower pull force. We recommend selecting the steel cross-section according to the table below.

Table 5: Thermal stability (material behavior) - resistance threshold
MW 45x15 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	48.55 kg / 107.03 pounds 48550.0 g / 476.3 N	OK
40 °C	-2.2%	47.48 kg / 104.68 pounds 47481.9 g / 465.8 N	OK
60 °C	-4.4%	46.41 kg / 102.32 pounds 46413.8 g / 455.3 N
80 °C	-6.6%	45.35 kg / 99.97 pounds 45345.7 g / 444.8 N
100 °C	-28.8%	34.57 kg / 76.21 pounds 34567.6 g / 339.1 N

Classic neodymiums change their properties power past the thermal threshold. Watch out for overheating – high temperature can permanently destroy this product. With every degree above norm, the neodymium's capacity momentarily decreases. Refrain from using this magnet near heat sources exceeding its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetism.

*Engineering note: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) risk losing magnetic properties under lower heat stress than long magnets. Warning indicator in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 45x15 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	115.89 kg / 255.50 pounds 4 958 Gs	17.38 kg / 38.32 pounds 17384 g / 170.5 N	N/A
1 mm	111.99 kg / 246.89 pounds 6 759 Gs	16.80 kg / 37.03 pounds 16798 g / 164.8 N	100.79 kg / 222.20 pounds ~0 Gs
2 mm	107.93 kg / 237.94 pounds 6 636 Gs	16.19 kg / 35.69 pounds 16189 g / 158.8 N	97.14 kg / 214.15 pounds ~0 Gs
3 mm	103.82 kg / 228.89 pounds 6 508 Gs	15.57 kg / 34.33 pounds 15573 g / 152.8 N	93.44 kg / 206.00 pounds ~0 Gs
5 mm	95.55 kg / 210.66 pounds 6 244 Gs	14.33 kg / 31.60 pounds 14333 g / 140.6 N	86.00 kg / 189.59 pounds ~0 Gs
10 mm	75.46 kg / 166.35 pounds 5 548 Gs	11.32 kg / 24.95 pounds 11318 g / 111.0 N	67.91 kg / 149.72 pounds ~0 Gs
20 mm	42.84 kg / 94.46 pounds 4 181 Gs	6.43 kg / 14.17 pounds 6427 g / 63.0 N	38.56 kg / 85.01 pounds ~0 Gs
50 mm	6.20 kg / 13.67 pounds 1 591 Gs	0.93 kg / 2.05 pounds 930 g / 9.1 N	5.58 kg / 12.31 pounds ~0 Gs
60 mm	3.36 kg / 7.41 pounds 1 171 Gs	0.50 kg / 1.11 pounds 504 g / 4.9 N	3.02 kg / 6.67 pounds ~0 Gs
70 mm	1.89 kg / 4.16 pounds 877 Gs	0.28 kg / 0.62 pounds 283 g / 2.8 N	1.70 kg / 3.74 pounds ~0 Gs
80 mm	1.10 kg / 2.42 pounds 669 Gs	0.16 kg / 0.36 pounds 165 g / 1.6 N	0.99 kg / 2.18 pounds ~0 Gs
90 mm	0.66 kg / 1.46 pounds 520 Gs	0.10 kg / 0.22 pounds 99 g / 1.0 N	0.60 kg / 1.31 pounds ~0 Gs
100 mm	0.41 kg / 0.91 pounds 410 Gs	0.06 kg / 0.14 pounds 62 g / 0.6 N	0.37 kg / 0.82 pounds ~0 Gs

Two magnetic products interact from a wider radius than a magnet and sheet combination. The connection of two magnets creates a more powerful interaction and a larger range of performance. Designing a strong closure? Apply two magnets instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the impact force is massive. The levitation is marginally weaker than the connection force, but still large.
*Flux density in repulsion mode is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Results apply to friction force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 45x15 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	20.5 cm
Hearing aid	10 Gs (1.0 mT)	16.0 cm
Timepiece	20 Gs (2.0 mT)	12.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	10.0 cm
Car key	50 Gs (5.0 mT)	9.0 cm
Payment card	400 Gs (40.0 mT)	4.0 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

Extremely neodym field is a large risk to electronics as well as pacemakers. These NdFeB products produce a flux that destroys function of digital equipment. Remember: the unseen radiation passes through tissues and glass. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, membranes, and screens. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - collision effects
MW 45x15 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	20.09 km/h (5.58 m/s)	2.79 J
30 mm	29.29 km/h (8.14 m/s)	5.92 J
50 mm	37.23 km/h (10.34 m/s)	9.57 J
100 mm	52.54 km/h (14.59 m/s)	19.05 J

NdFeB products are prone to chipping – a collision with steel causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can cause material chips or dangerous crushing to skin. Always hold the magnet during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Wear safety glasses when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 45x15 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (Flux)
MW 45x15 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	57 854 Mx	578.5 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value emitted by the pole surface. Key data when building generators as well as sensors. The P_c coefficient determines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 45x15 / N38

Environment	Effective steel pull	Effect
Air (land)	48.55 kg	Standard
Water (riverbed)	55.59 kg (+7.04 kg buoyancy gain)	+14.5%

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

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

1. Sliding resistance

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

2. Steel saturation

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

3. Thermal stability

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.44

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.

Engineering data and GPSR

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%

Environmental data

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: 010070-2026

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UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

22.94 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 14x3 / N38 - cylindrical magnet

1.845 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 45x25 / N38 - cylindrical magnet

101.55 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 20x2.5 / N38 - cylindrical magnet

3.01 ZŁ brutto / pcs

The offered product is an exceptionally strong cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø45x15 mm, guarantees maximum efficiency. The MW 45x15 / N38 model is characterized by high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 48.55 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 476.32 N with a weight of only 178.92 g, this rod is indispensable in electronics and wherever every gram matters.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 45.1 mm) using two-component epoxy glues. 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 industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø45x15), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø45x15 mm, which, at a weight of 178.92 g, makes it an element with impressive magnetic energy density. The value of 476.32 N means that the magnet is capable of holding a weight many times exceeding its own mass of 178.92 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 15 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.

Pros as well as cons of neodymium magnets.

Advantages

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They do not lose magnetism, even during approximately 10 years – the drop in power is only ~1% (based on measurements),
They retain their magnetic properties even under external field action,
In other words, due to the metallic finish of gold, the element becomes visually attractive,
They show high magnetic induction at the operating surface, which improves attraction properties,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Considering the option of flexible molding and adaptation to specialized solutions, NdFeB magnets can be modeled in a broad palette of shapes and sizes, which increases their versatility,
Fundamental importance in modern technologies – they are utilized in magnetic memories, motor assemblies, medical equipment, as well as complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
We warn that neodymium magnets can reduce 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 corrode. Therefore when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
We recommend casing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated shapes.
Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child safety. Additionally, tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum lifting capacity of the magnet – what it depends on?

Magnet power is the result of a measurement for optimal configuration, including:

on a base made of structural steel, perfectly concentrating the magnetic field
possessing a massiveness of minimum 10 mm to avoid saturation
with a plane perfectly flat
without the slightest clearance between the magnet and steel
during detachment in a direction vertical to the mounting surface
at room temperature

Lifting capacity in practice – influencing factors

In real-world applications, the real power results from many variables, listed from crucial:

Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – highest force is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
Material composition – not every steel reacts the same. Alloy additives worsen the attraction effect.
Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
Thermal environment – temperature increase results in weakening of force. Check the thermal limit for a given model.

Lifting capacity was assessed using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Precautions when working with neodymium magnets

Combustion hazard

Powder created during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Avoid contact if allergic

Medical facts indicate that nickel (the usual finish) is a potent allergen. For allergy sufferers, prevent touching magnets with bare hands and select coated magnets.

Demagnetization risk

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

Safe distance

Powerful magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

ICD Warning

Individuals with a heart stimulator must keep an absolute distance from magnets. The magnetic field can interfere with the functioning of the life-saving device.

Danger to the youngest

Absolutely keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are tragic.

Safe operation

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.

Risk of cracking

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

Crushing risk

Large magnets can smash fingers instantly. Do not put your hand between two attracting surfaces.

Keep away from electronics

Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a strong magnet can decalibrate the sensors in your phone.

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

MW 45x15 / N38 - cylindrical magnet

Technical details - MW 45x15 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the product - report

Table 1: Static force (force vs distance) - interaction chart MW 45x15 / N38

Table 2: Vertical load (wall) MW 45x15 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 45x15 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MW 45x15 / N38

Table 5: Thermal stability (material behavior) - resistance threshold MW 45x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 45x15 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 45x15 / N38

Table 8: Impact energy (cracking risk) - collision effects MW 45x15 / N38

Table 9: Coating parameters (durability) MW 45x15 / N38

Table 10: Electrical data (Flux) MW 45x15 / N38

Table 11: Underwater work (magnet fishing) MW 45x15 / N38

1. Sliding resistance

2. Steel saturation

3. Thermal stability

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Field

See also offers

UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

MW 14x3 / N38 - cylindrical magnet

MW 45x25 / N38 - cylindrical magnet

MW 20x2.5 / N38 - cylindrical magnet

Pros as well as cons of neodymium magnets.

Advantages

Limitations

Lifting parameters

Maximum lifting capacity of the magnet – what it depends on?

Lifting capacity in practice – influencing factors

Precautions when working with neodymium magnets

Combustion hazard

Avoid contact if allergic

Demagnetization risk

Safe distance

ICD Warning

Danger to the youngest

Safe operation

Risk of cracking

Crushing risk

Keep away from electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MW 45x15 / N38

Table 2: Vertical load (wall)
MW 45x15 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 45x15 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MW 45x15 / N38

Table 5: Thermal stability (material behavior) - resistance threshold
MW 45x15 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 45x15 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 45x15 / N38

Table 8: Impact energy (cracking risk) - collision effects
MW 45x15 / N38

Table 9: Coating parameters (durability)
MW 45x15 / N38

Table 10: Electrical data (Flux)
MW 45x15 / N38

Table 11: Underwater work (magnet fishing)
MW 45x15 / N38