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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

technical details »

101.55 ZŁ with VAT / pcs + price for transport

82.56 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - 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 analysis of the magnet - data

The following information represent the outcome of a physical analysis. Results were calculated on models for the material Nd₂Fe₁₄B. Actual performance might slightly differ. Please consider these data as a preliminary roadmap 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	safe
50 mm	285 Gs 28.5 mT	0.26 kg / 0.57 lbs 257.0 g / 2.5 N	safe

Grip strength decreases sharply with every subsequent millimeter of spacing. Remember that even the smallest gap (e.g., dirt, varnish, dust) noticeably diminishes the holding power. Magnets operate most effectively at the point of direct contact; distance kills the power. Notice how quickly the load capacity drop, when the product does not adhere tightly to the metal substrate. When designing the arrangement, discard additional spacers.

Table 2: Shear capacity (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 table below indicates the theoretical weight limit sufficient to cause the shifting of the magnet down on a upright steel wall (considering typical friction coefficient). This parameter is a function of the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - 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 placing a magnet on a upright surface (e.g., a fridge), it will maintain just approx. 1/5 of its nominal power. Gravitational force and a low friction coefficient cause that holders slide down faster than they pop off the substrate. Want to create a vertical fastening? Remember that the shear force is significantly lower than the maximum static pull force. On a smooth steel, the holder will slip down under a noticeably lighter weight. Using a rubber pad can drastically increase the grip.

Table 4: Material efficiency (substrate influence) - power losses
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 metal plate is incapable of conduct the entire magnetic field, which wastes potential of the magnet. Should you attach a powerful product to a weak sheet, the field will penetrate right through and the attraction force will be weaker. To squeeze 100% of this magnet's potential, you need a suitably thick piece of metal. The saturation effect means that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We advise picking the steel thickness according to the table below.

Table 5: Thermal resistance (stability) - 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

Standard neodymium magnets lose power above the temperature limit. Avoid high temperatures – heat can permanently damage this product. With increasing heat, the neodymium's capacity momentarily decreases. Do not use this magnet near heat sources exceeding its safe range. Exceeding the critical threshold will result in destruction of magnetism.

*Important note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than taller cylinders. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
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 magnetic products interact from a wider radius than a magnet and sheet combination. Such a system of magnet-to-magnet produces a massive flux and a larger range of operation. Designing a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is huge. The repulsion force is marginally weaker than the connection force, but still impressive.
*Field value for N-N configuration drops to ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Important: Results apply to sliding force of two identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (electronics) - 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
Timepiece	20 Gs (2.0 mT)	14.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	11.5 cm
Remote	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

A strong magnetic field is a real danger to electronic devices and pacemakers. These neodymiums generate a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field acts through matter and glass. Increased vigilance must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
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

Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Control the attraction moment – a magnet released freely turns into a projectile. Striking energy can destroy the magnet or injury to skin. Hold the magnet firmly during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when handling with large magnets.

Table 9: Anti-corrosion coating durability
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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (P_c)
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 magnet pole. Essential parameter for generator designers and motors. The P_c coefficient determines the working geometry.

Table 11: Physics of underwater searching
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%

Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

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

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) severely reduces 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) = 0.63

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 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%

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: 010072-2026

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MW 6x6 / N38 - cylindrical magnet

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The offered product is a very strong cylindrical magnet, composed of advanced NdFeB material, which, with dimensions of Ø45x25 mm, guarantees maximum efficiency. The MW 45x25 / N38 model features an accuracy of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 67.33 kg), this product is in stock from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 660.51 N with a weight of only 298.21 g, this rod is indispensable in electronics and wherever low weight is crucial.

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 epoxy glues. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. 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 available off-the-shelf 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 lifting capacity amounting to approximately 67.33 kg (force ~660.51 N), which, with such compact dimensions, proves the high power 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.

Pros and cons of Nd₂Fe₁₄B magnets.

Strengths

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

They have unchanged lifting capacity, and over around 10 years their performance decreases symbolically – ~1% (in testing),
Neodymium magnets remain extremely resistant to demagnetization caused by magnetic disturbances,
A magnet with a shiny gold surface looks better,
Neodymium magnets ensure maximum magnetic induction on a small surface, which increases force concentration,
Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to the option of free forming and adaptation to specialized solutions, NdFeB magnets can be manufactured in a variety of forms and dimensions, which expands the range of possible applications,
Fundamental importance in high-tech industry – they find application in hard drives, electric drive systems, advanced medical instruments, also industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only protects 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 drop of power (a factor is the shape and 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
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited possibility of making nuts in the magnet and complex shapes - recommended is cover - magnet mounting.
Possible danger related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Furthermore, tiny parts of these products can disrupt the diagnostic process medical when they are in the body.
With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum magnetic pulling force – what it depends on?

The load parameter shown refers to the maximum value, measured under optimal environment, specifically:

with the application of a sheet made of special test steel, guaranteeing maximum field concentration
whose transverse dimension is min. 10 mm
with an ground touching surface
with total lack of distance (without coatings)
during pulling in a direction perpendicular to the plane
at conditions approx. 20°C

Key elements affecting lifting force

Real force is affected by working environment parameters, mainly (from priority):

Clearance – the presence of any layer (paint, tape, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Steel grade – ideal substrate is high-permeability steel. Hardened steels may have worse magnetic properties.
Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Temperature – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Lifting capacity was determined with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.

Safety rules for work with neodymium magnets

Operating temperature

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

Dust explosion hazard

Dust created during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

Magnetic media

Device Safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, timepieces).

Magnetic interference

Navigation devices and smartphones are extremely sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Metal Allergy

A percentage of the population experience a sensitization to nickel, which is the common plating for NdFeB magnets. Frequent touching can result in an allergic reaction. We recommend use protective gloves.

No play value

Strictly store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are tragic.

Risk of cracking

NdFeB magnets are ceramic materials, which means they are very brittle. Clashing of two magnets leads to them breaking into shards.

Warning for heart patients

Individuals with a heart stimulator have to maintain an absolute distance from magnets. The magnetic field can stop the functioning of the implant.

Caution required

Handle magnets consciously. Their powerful strength can surprise even professionals. Stay alert and do not underestimate their power.

Crushing force

Risk of injury: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?

MW 45x25 / N38 - cylindrical magnet

Technical parameters of the product - MW 45x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the magnet - data

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

Table 2: Shear capacity (wall) MW 45x25 / N38

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

Table 4: Material efficiency (substrate influence) - power losses MW 45x25 / N38

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

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 45x25 / N38

Table 7: Hazards (electronics) - warnings MW 45x25 / N38

Table 8: Impact energy (cracking risk) - collision effects MW 45x25 / N38

Table 9: Anti-corrosion coating durability MW 45x25 / N38

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

Table 11: Physics of underwater searching MW 45x25 / N38

1. Sliding resistance

2. Steel saturation

3. Temperature resistance

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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Pros and cons of Nd2Fe14B magnets.

Strengths

Disadvantages

Lifting parameters

Maximum magnetic pulling force – what it depends on?

Key elements affecting lifting force

Safety rules for work with neodymium magnets

Operating temperature

Dust explosion hazard

Magnetic media

Magnetic interference

Metal Allergy

No play value

Risk of cracking

Warning for heart patients

Caution required

Crushing force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear capacity (wall)
MW 45x25 / N38

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

Table 4: Material efficiency (substrate influence) - power losses
MW 45x25 / N38

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

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 45x25 / N38

Table 7: Hazards (electronics) - warnings
MW 45x25 / N38

Table 8: Impact energy (cracking risk) - collision effects
MW 45x25 / N38

Table 9: Anti-corrosion coating durability
MW 45x25 / N38

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

Table 11: Physics of underwater searching
MW 45x25 / N38

Pros and cons of Nd₂Fe₁₄B magnets.