Product available Ships today (order by 14:00)

MW 45x30 / 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 010073

GTIN/EAN: 5906301810728

Diameter Ø

45 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

357.85 g

Magnetization Direction

↑ axial

Load capacity

69.46 kg / 681.39 N

Magnetic Induction

495.87 mT / 4959 Gs

Coating

[NiCuNi] Nickel

product parameters »

136.80 ZŁ with VAT / pcs + price for transport

111.22 ZŁ net + 23% VAT / pcs

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Technical parameters - MW 45x30 / N38 - cylindrical magnet

Specification / characteristics - MW 45x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010073
GTIN/EAN	5906301810728
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	30 mm [±0,1 mm]
Weight	357.85 g
Magnetization Direction	↑ axial
Load capacity ~ ?	69.46 kg / 681.39 N
Magnetic Induction ~ ?	495.87 mT / 4959 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x30 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Physical modeling of the product - report

The following values constitute the result of a engineering analysis. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Use these data as a supplementary guide for designers.

Table 1: Static force (force vs distance) - power drop
MW 45x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4958 Gs 495.8 mT	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N	crushing
1 mm	4742 Gs 474.2 mT	63.55 kg / 140.11 lbs 63553.9 g / 623.5 N	crushing
2 mm	4523 Gs 452.3 mT	57.81 kg / 127.44 lbs 57805.8 g / 567.1 N	crushing
3 mm	4303 Gs 430.3 mT	52.33 kg / 115.36 lbs 52327.7 g / 513.3 N	crushing
5 mm	3870 Gs 387.0 mT	42.33 kg / 93.32 lbs 42329.9 g / 415.3 N	crushing
10 mm	2886 Gs 288.6 mT	23.53 kg / 51.88 lbs 23531.8 g / 230.8 N	crushing
15 mm	2106 Gs 210.6 mT	12.54 kg / 27.64 lbs 12537.0 g / 123.0 N	crushing
20 mm	1535 Gs 153.5 mT	6.66 kg / 14.68 lbs 6657.1 g / 65.3 N	strong
30 mm	845 Gs 84.5 mT	2.02 kg / 4.45 lbs 2018.9 g / 19.8 N	strong
50 mm	315 Gs 31.5 mT	0.28 kg / 0.62 lbs 279.5 g / 2.7 N	low risk

Grip strength decreases drastically with every subsequent millimeter of distance. Keep in mind that even the smallest gap (e.g., contamination, varnish, veneer) strongly reduces the pull force. Magnetic products operate strongest at the point of direct contact; distance weakens the force. Analyze how quickly the pull force drop, when the product does not adhere tightly to the steel surface. When planning the mounting, avoid additional spacers.

Table 2: Sliding hold (wall)
MW 45x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	13.89 kg / 30.63 lbs 13892.0 g / 136.3 N
1 mm	Stal (~0.2)	12.71 kg / 28.02 lbs 12710.0 g / 124.7 N
2 mm	Stal (~0.2)	11.56 kg / 25.49 lbs 11562.0 g / 113.4 N
3 mm	Stal (~0.2)	10.47 kg / 23.07 lbs 10466.0 g / 102.7 N
5 mm	Stal (~0.2)	8.47 kg / 18.66 lbs 8466.0 g / 83.1 N
10 mm	Stal (~0.2)	4.71 kg / 10.37 lbs 4706.0 g / 46.2 N
15 mm	Stal (~0.2)	2.51 kg / 5.53 lbs 2508.0 g / 24.6 N
20 mm	Stal (~0.2)	1.33 kg / 2.94 lbs 1332.0 g / 13.1 N
30 mm	Stal (~0.2)	0.40 kg / 0.89 lbs 404.0 g / 4.0 N
50 mm	Stal (~0.2)	0.06 kg / 0.12 lbs 56.0 g / 0.5 N

This section defines the theoretical holding capacity necessary to initiate the downward movement of the magnet down along a vertical metal surface (assuming standard friction coefficient). This parameter depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 45x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	20.84 kg / 45.94 lbs 20838.0 g / 204.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	13.89 kg / 30.63 lbs 13892.0 g / 136.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	6.95 kg / 15.31 lbs 6946.0 g / 68.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	34.73 kg / 76.57 lbs 34730.0 g / 340.7 N

When hanging a element on a upright wall (e.g., a board), it you can count on only about 20%-30% of nominal attraction strength. Gravity as well as a weak degree of grip mean that holders slide down easier than they pull off. Want to create a wall mount? Note that the sliding force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will give way down under a noticeably lighter weight. Application of an anti-slip pad can significantly improve the result.

Table 4: Steel thickness (saturation) - power losses
MW 45x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.32 kg / 5.10 lbs 2315.3 g / 22.7 N
1 mm	8%	5.79 kg / 12.76 lbs 5788.3 g / 56.8 N
2 mm	17%	11.58 kg / 25.52 lbs 11576.7 g / 113.6 N
3 mm	25%	17.37 kg / 38.28 lbs 17365.0 g / 170.4 N
5 mm	42%	28.94 kg / 63.81 lbs 28941.7 g / 283.9 N
10 mm	83%	57.88 kg / 127.61 lbs 57883.3 g / 567.8 N
11 mm	92%	63.67 kg / 140.37 lbs 63671.7 g / 624.6 N
12 mm	100%	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N

A thin metal plate is incapable of absorb the full magnetic flux, which weakens actual performance of the magnet. If you attach a powerful product to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To squeeze full efficiency of this neodymium's power, you require a sufficiently solid piece of metal. The saturation phenomenon means that on thin elements (e.g., appliance housings), the product shows lower pull force. We suggest choosing the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
MW 45x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N	OK
40 °C	-2.2%	67.93 kg / 149.76 lbs 67931.9 g / 666.4 N	OK
60 °C	-4.4%	66.40 kg / 146.40 lbs 66403.8 g / 651.4 N	OK
80 °C	-6.6%	64.88 kg / 143.03 lbs 64875.6 g / 636.4 N
100 °C	-28.8%	49.46 kg / 109.03 lbs 49455.5 g / 485.2 N

Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Protect against heat – heat can irreversibly destroy this product. As the temperature rises, the neodymium's capacity momentarily decreases. Do not use this magnet in hot environments exceeding its working range. Exceeding the critical threshold will cause permanent loss of magnetic properties.

*Technical advisory: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (pancake types) risk losing magnetic properties at lower temperatures than long magnets. The danger warning in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MW 45x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	241.01 kg / 531.33 lbs 5 803 Gs	36.15 kg / 79.70 lbs 36151 g / 354.6 N	N/A
1 mm	230.79 kg / 508.80 lbs 9 703 Gs	34.62 kg / 76.32 lbs 34618 g / 339.6 N	207.71 kg / 457.92 lbs ~0 Gs
2 mm	220.52 kg / 486.16 lbs 9 485 Gs	33.08 kg / 72.92 lbs 33078 g / 324.5 N	198.47 kg / 437.54 lbs ~0 Gs
3 mm	210.44 kg / 463.94 lbs 9 265 Gs	31.57 kg / 69.59 lbs 31566 g / 309.7 N	189.39 kg / 417.54 lbs ~0 Gs
5 mm	190.94 kg / 420.95 lbs 8 826 Gs	28.64 kg / 63.14 lbs 28641 g / 281.0 N	171.85 kg / 378.86 lbs ~0 Gs
10 mm	146.87 kg / 323.80 lbs 7 741 Gs	22.03 kg / 48.57 lbs 22031 g / 216.1 N	132.19 kg / 291.42 lbs ~0 Gs
20 mm	81.65 kg / 180.01 lbs 5 771 Gs	12.25 kg / 27.00 lbs 12247 g / 120.1 N	73.48 kg / 162.01 lbs ~0 Gs
50 mm	12.52 kg / 27.60 lbs 2 260 Gs	1.88 kg / 4.14 lbs 1878 g / 18.4 N	11.27 kg / 24.84 lbs ~0 Gs
60 mm	7.01 kg / 15.44 lbs 1 690 Gs	1.05 kg / 2.32 lbs 1051 g / 10.3 N	6.30 kg / 13.90 lbs ~0 Gs
70 mm	4.06 kg / 8.95 lbs 1 287 Gs	0.61 kg / 1.34 lbs 609 g / 6.0 N	3.66 kg / 8.06 lbs ~0 Gs
80 mm	2.44 kg / 5.38 lbs 998 Gs	0.37 kg / 0.81 lbs 366 g / 3.6 N	2.20 kg / 4.84 lbs ~0 Gs
90 mm	1.51 kg / 3.34 lbs 786 Gs	0.23 kg / 0.50 lbs 227 g / 2.2 N	1.36 kg / 3.01 lbs ~0 Gs
100 mm	0.97 kg / 2.14 lbs 629 Gs	0.15 kg / 0.32 lbs 145 g / 1.4 N	0.87 kg / 1.92 lbs ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a neodymium and metal setup. The setup of magnet-to-magnet generates a stronger field and a larger range of performance. Planning to create a powerful holder? Apply two magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the impact force is extreme. The levitation is marginally weaker than the connection force, but still impressive.
*Flux density for N-N configuration reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
* Estimates refer to friction force of dual same neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MW 45x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	25.5 cm
Hearing aid	10 Gs (1.0 mT)	20.0 cm
Timepiece	20 Gs (2.0 mT)	15.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	12.0 cm
Car key	50 Gs (5.0 mT)	11.0 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	4.0 cm

A strong magnetic field poses a serious hazard to electronic devices and medical implants. These NdFeB products produce a flux that prevents correct functioning of digital equipment. Remember: the invisible magnetic field passes through tissues and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (cracking risk) - collision effects
MW 45x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.76 km/h (4.66 m/s)	3.88 J
30 mm	24.77 km/h (6.88 m/s)	8.47 J
50 mm	31.50 km/h (8.75 m/s)	13.70 J
100 mm	44.44 km/h (12.34 m/s)	27.26 J

Neodymium magnets are delicate – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can destroy the magnet or painful pinches to skin. Be sure to control the product during installation so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h means shattering of the magnet. Use safety goggles when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 45x30 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 45x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	79 446 Mx	794.5 µWb
P_c Coefficient	0.71	High (Stable)

Flux value passing through the magnet pole. Essential parameter when building generators and motors. The P_c coefficient determines the working geometry.

Table 11: Submerged application
MW 45x30 / N38

Environment	Effective steel pull	Effect
Air (land)	69.46 kg	Standard
Water (riverbed)	79.53 kg (+10.07 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Warning: On a vertical surface, the magnet retains only ~20% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Temperature resistance

*For N38 grade, 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) = 0.71

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%

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: 010073-2026

Measurement Calculator

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SM 18x225 [2xM5] / N42 - magnetic separator

498.15 ZŁ brutto / pcs

This product is an exceptionally strong cylinder magnet, manufactured from durable NdFeB material, which, at dimensions of Ø45x30 mm, guarantees maximum efficiency. This specific item boasts a tolerance of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a cylindrical magnet with impressive force (approx. 69.46 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It finds application in DIY projects, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 681.39 N with a weight of only 357.85 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, we absolutely advise against 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 do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for 90% of applications in automation and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø45x30), 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 Ø45x30 mm, which, at a weight of 357.85 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 69.46 kg (force ~681.39 N), which, with such defined dimensions, proves the high power of the NdFeB material. 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 30 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 diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Advantages

Besides their stability, neodymium magnets are valued for these benefits:

They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the top side of the magnet is strong,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures reaching 230°C and above...
Possibility of individual shaping and optimizing to individual conditions,
Huge importance in electronics industry – they serve a role in data components, electromotive mechanisms, diagnostic systems, and multitasking production systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in realizing nuts and complicated shapes in magnets, we recommend using casing - magnetic holder.
Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, small elements of these magnets can disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Highest magnetic holding force – what it depends on?

Breakaway force is the result of a measurement for ideal contact conditions, taking into account:

using a sheet made of low-carbon steel, functioning as a ideal flux conductor
possessing a massiveness of minimum 10 mm to avoid saturation
characterized by lack of roughness
under conditions of gap-free contact (surface-to-surface)
for force applied at a right angle (in the magnet axis)
at ambient temperature room level

Key elements affecting lifting force

Holding efficiency is affected by specific conditions, mainly (from priority):

Distance – existence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
Metal type – different alloys attracts identically. High carbon content worsen the interaction with the magnet.
Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the holding force is lower. In addition, even a slight gap between the magnet and the plate decreases the holding force.

Warnings

No play value

Neodymium magnets are not suitable for play. Swallowing multiple magnets can lead to them pinching intestinal walls, which poses a critical condition and requires immediate surgery.

Risk of cracking

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.

Permanent damage

Watch the temperature. Heating the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

Allergic reactions

Medical facts indicate that nickel (the usual finish) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and choose encased magnets.

Threat to navigation

GPS units and mobile phones are extremely susceptible to magnetism. Direct contact with a powerful NdFeB magnet can ruin the internal compass in your phone.

Flammability

Dust created during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Magnetic media

Equipment safety: Neodymium magnets can damage data carriers and sensitive devices (pacemakers, hearing aids, timepieces).

Conscious usage

Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.

Physical harm

Big blocks can smash fingers in a fraction of a second. Under no circumstances put your hand betwixt two strong magnets.

Warning for heart patients

Individuals with a heart stimulator must maintain an large gap from magnets. The magnetism can stop the functioning of the life-saving device.

Danger! Details about hazards in the article: Magnet Safety Guide.

MW 45x30 / N38 - cylindrical magnet

Technical parameters - MW 45x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - report

Table 1: Static force (force vs distance) - power drop MW 45x30 / N38

Table 2: Sliding hold (wall) MW 45x30 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 45x30 / N38

Table 4: Steel thickness (saturation) - power losses MW 45x30 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 45x30 / N38

Table 6: Two magnets (repulsion) - field collision MW 45x30 / N38

Table 7: Hazards (electronics) - warnings MW 45x30 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 45x30 / N38

Table 9: Coating parameters (durability) MW 45x30 / N38

Table 10: Construction data (Flux) MW 45x30 / N38

Table 11: Submerged application MW 45x30 / N38

1. Shear force

2. Efficiency vs thickness

3. Temperature resistance

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

Material specification

Environmental data

Magnet pull force

Magnetic Induction

Other products

MPL 12x10x4 / N38 - lamellar magnet

MW 10x6 / N38 - cylindrical magnet

MW 5x15 / N38 - cylindrical magnet

SM 18x225 [2xM5] / N42 - magnetic separator

Advantages and disadvantages of rare earth magnets.

Advantages

Cons

Pull force analysis

Highest magnetic holding force – what it depends on?

Key elements affecting lifting force

Warnings

No play value

Risk of cracking

Permanent damage

Allergic reactions

Threat to navigation

Flammability

Magnetic media

Conscious usage

Physical harm

Warning for heart patients

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 45x30 / N38

Table 2: Sliding hold (wall)
MW 45x30 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 45x30 / N38

Table 4: Steel thickness (saturation) - power losses
MW 45x30 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 45x30 / N38

Table 6: Two magnets (repulsion) - field collision
MW 45x30 / N38

Table 7: Hazards (electronics) - warnings
MW 45x30 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 45x30 / N38

Table 9: Coating parameters (durability)
MW 45x30 / N38

Table 10: Construction data (Flux)
MW 45x30 / N38

Table 11: Submerged application
MW 45x30 / N38