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MW 45x25 / 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 010072

GTIN/EAN: 5906301810711

5.00

Diameter Ø

45 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

298.21 g

Magnetization Direction

↑ axial

Load capacity

67.33 kg / 660.51 N

Magnetic Induction

460.72 mT / 4607 Gs

Coating

[NiCuNi] Nickel

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101.55 ZŁ with VAT / pcs + price for transport

82.56 ZŁ net + 23% VAT / pcs

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Physical properties - MW 45x25 / N38 - cylindrical magnet

Specification / characteristics - MW 45x25 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010072
GTIN/EAN	5906301810711
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	25 mm [±0,1 mm]
Weight	298.21 g
Magnetization Direction	↑ axial
Load capacity ~ ?	67.33 kg / 660.51 N
Magnetic Induction ~ ?	460.72 mT / 4607 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x25 / 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 simulation of the magnet - data

The following values are the result of a physical analysis. Results are based on models for the class Nd₂Fe₁₄B. Real-world performance may differ. Please consider these data as a reference point for designers.

Table 1: Static force (force vs gap) - characteristics
MW 45x25 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4606 Gs 460.6 mT	67.33 kg / 148.44 LBS 67330.0 g / 660.5 N	critical level
1 mm	4413 Gs 441.3 mT	61.79 kg / 136.23 LBS 61791.4 g / 606.2 N	critical level
2 mm	4214 Gs 421.4 mT	56.35 kg / 124.22 LBS 56345.9 g / 552.8 N	critical level
3 mm	4014 Gs 401.4 mT	51.11 kg / 112.68 LBS 51112.0 g / 501.4 N	critical level
5 mm	3615 Gs 361.5 mT	41.47 kg / 91.42 LBS 41466.0 g / 406.8 N	critical level
10 mm	2697 Gs 269.7 mT	23.08 kg / 50.89 LBS 23083.9 g / 226.5 N	critical level
15 mm	1965 Gs 196.5 mT	12.25 kg / 27.00 LBS 12247.0 g / 120.1 N	critical level
20 mm	1426 Gs 142.6 mT	6.46 kg / 14.23 LBS 6455.7 g / 63.3 N	medium risk
30 mm	778 Gs 77.8 mT	1.92 kg / 4.24 LBS 1922.5 g / 18.9 N	weak grip
50 mm	285 Gs 28.5 mT	0.26 kg / 0.57 LBS 257.0 g / 2.5 N	weak grip

Magnetic force decreases drastically per each millimeter of gap. Remember that even a very thin break (e.g., contamination, varnish, veneer) strongly diminishes the holding power. Magnetic products operate most effectively during direct contact; air break nullifies the power. Analyze how flashily the parameters plummet, when the product does not adhere directly to the steel surface. When designing the arrangement, discard unnecessary gaps.

Table 2: Vertical load (wall)
MW 45x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	13.47 kg / 29.69 LBS 13466.0 g / 132.1 N
1 mm	Stal (~0.2)	12.36 kg / 27.24 LBS 12358.0 g / 121.2 N
2 mm	Stal (~0.2)	11.27 kg / 24.85 LBS 11270.0 g / 110.6 N
3 mm	Stal (~0.2)	10.22 kg / 22.54 LBS 10222.0 g / 100.3 N
5 mm	Stal (~0.2)	8.29 kg / 18.29 LBS 8294.0 g / 81.4 N
10 mm	Stal (~0.2)	4.62 kg / 10.18 LBS 4616.0 g / 45.3 N
15 mm	Stal (~0.2)	2.45 kg / 5.40 LBS 2450.0 g / 24.0 N
20 mm	Stal (~0.2)	1.29 kg / 2.85 LBS 1292.0 g / 12.7 N
30 mm	Stal (~0.2)	0.38 kg / 0.85 LBS 384.0 g / 3.8 N
50 mm	Stal (~0.2)	0.05 kg / 0.11 LBS 52.0 g / 0.5 N

The following data shows the theoretical force necessary to start the slippage of the magnet vertically on a upright steel wall (considering typical friction). This value depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 45x25 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	20.20 kg / 44.53 LBS 20199.0 g / 198.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	13.47 kg / 29.69 LBS 13466.0 g / 132.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	6.73 kg / 14.84 LBS 6733.0 g / 66.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	33.67 kg / 74.22 LBS 33665.0 g / 330.3 N

When hanging a holder on a vertical wall (e.g., a fridge), it you can count on just approx. 20%-30% of its maximum pull force. Gravity and a low friction coefficient mean that products slide down faster than they detach. Designing a wall mount? Note that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the magnet will slide down under a significantly smaller load. Utilizing a rubberized pad can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 45x25 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.24 kg / 4.95 LBS 2244.3 g / 22.0 N
1 mm	8%	5.61 kg / 12.37 LBS 5610.8 g / 55.0 N
2 mm	17%	11.22 kg / 24.74 LBS 11221.7 g / 110.1 N
3 mm	25%	16.83 kg / 37.11 LBS 16832.5 g / 165.1 N
5 mm	42%	28.05 kg / 61.85 LBS 28054.2 g / 275.2 N
10 mm	83%	56.11 kg / 123.70 LBS 56108.3 g / 550.4 N
11 mm	92%	61.72 kg / 136.07 LBS 61719.2 g / 605.5 N
12 mm	100%	67.33 kg / 148.44 LBS 67330.0 g / 660.5 N

A thin sheet is unable to conduct the full magnetic flux, which squanders power of the magnet. If you attach a powerful product to a weak sheet, the flux will penetrate right through and the holding will be smaller. To squeeze full efficiency of this neodymium's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the magnet works worse. We recommend selecting the steel dimension based on the following data.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 45x25 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	67.33 kg / 148.44 LBS 67330.0 g / 660.5 N	OK
40 °C	-2.2%	65.85 kg / 145.17 LBS 65848.7 g / 646.0 N	OK
60 °C	-4.4%	64.37 kg / 141.91 LBS 64367.5 g / 631.4 N	OK
80 °C	-6.6%	62.89 kg / 138.64 LBS 62886.2 g / 616.9 N
100 °C	-28.8%	47.94 kg / 105.69 LBS 47939.0 g / 470.3 N

Ordinary NdFeB products lose parameters after exceeding the maximum temperature. Watch out for overheating – heat can permanently demagnetize this magnet. With increasing heat, the neodymium's force briefly decreases. Do not use this product close to ovens exceeding its operating temperature limit. Ignoring the limit will cause irreversible degradation of magnetic properties.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization at lower temperatures than taller cylinders. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field range
MW 45x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	208.06 kg / 458.70 LBS 5 651 Gs	31.21 kg / 68.80 LBS 31209 g / 306.2 N	N/A
1 mm	199.55 kg / 439.92 LBS 9 023 Gs	29.93 kg / 65.99 LBS 29932 g / 293.6 N	179.59 kg / 395.93 LBS ~0 Gs
2 mm	190.95 kg / 420.96 LBS 8 826 Gs	28.64 kg / 63.14 LBS 28642 g / 281.0 N	171.85 kg / 378.87 LBS ~0 Gs
3 mm	182.46 kg / 402.26 LBS 8 628 Gs	27.37 kg / 60.34 LBS 27369 g / 268.5 N	164.22 kg / 362.03 LBS ~0 Gs
5 mm	165.94 kg / 365.83 LBS 8 228 Gs	24.89 kg / 54.87 LBS 24891 g / 244.2 N	149.35 kg / 329.25 LBS ~0 Gs
10 mm	128.14 kg / 282.49 LBS 7 230 Gs	19.22 kg / 42.37 LBS 19221 g / 188.6 N	115.32 kg / 254.24 LBS ~0 Gs
20 mm	71.33 kg / 157.26 LBS 5 394 Gs	10.70 kg / 23.59 LBS 10700 g / 105.0 N	64.20 kg / 141.54 LBS ~0 Gs
50 mm	10.72 kg / 23.63 LBS 2 091 Gs	1.61 kg / 3.54 LBS 1608 g / 15.8 N	9.65 kg / 21.26 LBS ~0 Gs
60 mm	5.94 kg / 13.10 LBS 1 557 Gs	0.89 kg / 1.96 LBS 891 g / 8.7 N	5.35 kg / 11.79 LBS ~0 Gs
70 mm	3.41 kg / 7.52 LBS 1 180 Gs	0.51 kg / 1.13 LBS 512 g / 5.0 N	3.07 kg / 6.77 LBS ~0 Gs
80 mm	2.03 kg / 4.48 LBS 910 Gs	0.30 kg / 0.67 LBS 305 g / 3.0 N	1.83 kg / 4.03 LBS ~0 Gs
90 mm	1.25 kg / 2.76 LBS 714 Gs	0.19 kg / 0.41 LBS 188 g / 1.8 N	1.13 kg / 2.48 LBS ~0 Gs
100 mm	0.79 kg / 1.75 LBS 569 Gs	0.12 kg / 0.26 LBS 119 g / 1.2 N	0.71 kg / 1.58 LBS ~0 Gs

Two strong neodymiums attract each other from a much further distance than a neodymium and metal combination. The setup of magnet-to-magnet generates a stronger field and a further horizon of action. Want to build a strong closure? Utilize two neodymiums instead of one magnet and a steel. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The levitation is slightly lower than the attraction, but still significant.
*Field value for N-N configuration is approximately ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Estimates apply to shear force of two identical neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (implants) - warnings
MW 45x25 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	24.0 cm
Hearing aid	10 Gs (1.0 mT)	19.0 cm
Mechanical watch	20 Gs (2.0 mT)	14.5 cm
Mobile device	40 Gs (4.0 mT)	11.5 cm
Car key	50 Gs (5.0 mT)	10.5 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.5 cm

Powerful magnet radiation poses a serious hazard to electronics as well as pacemakers. These neodymiums generate a flux that disrupts operation of digital equipment. Be aware: the unseen radiation penetrates the body and housings. Special caution must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, remotes, speakers, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
MW 45x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.11 km/h (5.03 m/s)	3.77 J
30 mm	26.71 km/h (7.42 m/s)	8.21 J
50 mm	33.97 km/h (9.43 m/s)	13.27 J
100 mm	47.92 km/h (13.31 m/s)	26.42 J

NdFeB products are prone to chipping – a collision with steel can result in shattering. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Striking energy can trigger coating fragments or injury to fingers. Always hold the magnet during bringing near metal so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Corrosion resistance
MW 45x25 / 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 following table defines the conditions under which this product can be safely used. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 45x25 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	73 928 Mx	739.3 µWb
P_c Coefficient	0.63	High (Stable)

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

Table 11: Submerged application
MW 45x25 / N38

Environment	Effective steel pull	Effect
Air (land)	67.33 kg	Standard
Water (riverbed)	77.09 kg (+9.76 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Wall mount (shear)

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

2. Efficiency vs thickness

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

3. Heat tolerance

*For N38 material, the critical limit is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.63

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

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: 010072-2026

Measurement Calculator

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The offered product is a very strong cylindrical magnet, produced from advanced NdFeB material, which, with dimensions of Ø45x25 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and industrial build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 67.33 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring lightning-fast order fulfillment. Furthermore, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 660.51 N with a weight of only 298.21 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are strong enough for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø45x25), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø45x25 mm, which, at a weight of 298.21 g, makes it an element with impressive magnetic energy density. The key parameter here is the holding force amounting to approximately 67.33 kg (force ~660.51 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 25 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.

Strengths and weaknesses of rare earth magnets.

Pros

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

They do not lose power, even after around ten years – the drop in lifting capacity is only ~1% (according to tests),
They are resistant to demagnetization induced by presence of other magnetic fields,
In other words, due to the reflective surface of silver, the element gains a professional look,
Magnets possess very high magnetic induction on the outer side,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to freedom in designing and the capacity to adapt to specific needs,
Key role in innovative solutions – they find application in HDD drives, motor assemblies, precision medical tools, and industrial machines.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in compact constructions

Disadvantages

Problematic aspects of neodymium magnets and proposals for their use:

At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and 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 start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited ability of making nuts in the magnet and complicated shapes - preferred is casing - magnet mounting.
Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these magnets can disrupt the diagnostic process medical in case of swallowing.
Due to complex production process, their price is higher than average,

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

Magnet power was determined for ideal contact conditions, including:

on a plate made of mild steel, perfectly concentrating the magnetic flux
with a thickness minimum 10 mm
with an ground touching surface
with total lack of distance (no coatings)
for force acting at a right angle (in the magnet axis)
at ambient temperature approx. 20 degrees Celsius

Key elements affecting lifting force

Holding efficiency is affected by specific conditions, such as (from most important):

Gap 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.
Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Steel grade – the best choice is pure iron steel. Hardened steels may generate lower lifting capacity.
Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Thermal environment – temperature increase results in weakening of force. Check the thermal limit for a given model.

Lifting capacity was assessed by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.

H&S for magnets

Flammability

Powder created during machining of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

Permanent damage

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

Swallowing risk

Neodymium magnets are not intended for children. Eating a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and necessitates immediate surgery.

Protective goggles

Neodymium magnets are ceramic materials, meaning they are very brittle. Impact of two magnets will cause them shattering into shards.

Safe distance

Intense magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Pinching danger

Mind your fingers. Two large magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!

Phone sensors

An intense magnetic field interferes with the functioning of magnetometers in smartphones and navigation systems. Do not bring magnets close to a smartphone to avoid breaking the sensors.

Handling rules

Use magnets with awareness. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.

Allergy Warning

A percentage of the population experience a contact allergy to nickel, which is the standard coating for NdFeB magnets. Extended handling might lead to a rash. We suggest wear protective gloves.

ICD Warning

Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or request help to work with the magnets.

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

MW 45x25 / N38 - cylindrical magnet

Physical properties - MW 45x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - data

Table 1: Static force (force vs gap) - characteristics MW 45x25 / N38

Table 2: Vertical load (wall) MW 45x25 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 45x25 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 45x25 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MW 45x25 / N38

Table 6: Two magnets (attraction) - field range MW 45x25 / N38

Table 7: Protective zones (implants) - warnings MW 45x25 / N38

Table 8: Collisions (cracking risk) - warning MW 45x25 / N38

Table 9: Corrosion resistance MW 45x25 / N38

Table 10: Construction data (Flux) MW 45x25 / N38

Table 11: Submerged application MW 45x25 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Environmental data

Magnet pull force

Magnetic Induction

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MW 15x2 / N38 - cylindrical magnet

Strengths and weaknesses of rare earth magnets.

Pros

Disadvantages

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

Key elements affecting lifting force

H&S for magnets

Flammability

Permanent damage

Swallowing risk

Protective goggles

Safe distance

Pinching danger

Phone sensors

Handling rules

Allergy Warning

ICD Warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - characteristics
MW 45x25 / N38

Table 2: Vertical load (wall)
MW 45x25 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 45x25 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 45x25 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 45x25 / N38

Table 6: Two magnets (attraction) - field range
MW 45x25 / N38

Table 7: Protective zones (implants) - warnings
MW 45x25 / N38

Table 8: Collisions (cracking risk) - warning
MW 45x25 / N38

Table 9: Corrosion resistance
MW 45x25 / N38

Table 10: Construction data (Flux)
MW 45x25 / N38

Table 11: Submerged application
MW 45x25 / N38