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MW 29x10 / 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 010053

GTIN/EAN: 5906301810520

5.00

Diameter Ø

29 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

49.54 g

Magnetization Direction

↑ axial

Load capacity

20.82 kg / 204.22 N

Magnetic Induction

351.88 mT / 3519 Gs

Coating

[NiCuNi] Nickel

technical details »

17.34 ZŁ with VAT / pcs + price for transport

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Give us a call +48 888 99 98 98 alternatively let us know by means of request form our website.
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Technical details - MW 29x10 / N38 - cylindrical magnet

Specification / characteristics - MW 29x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010053
GTIN/EAN	5906301810520
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	29 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	49.54 g
Magnetization Direction	↑ axial
Load capacity ~ ?	20.82 kg / 204.22 N
Magnetic Induction ~ ?	351.88 mT / 3519 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 29x10 / 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

Engineering analysis of the product - data

Presented values are the result of a mathematical calculation. Values rely on models for the material Nd₂Fe₁₄B. Operational conditions may deviate from the simulation results. Use these calculations as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - interaction chart
MW 29x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3518 Gs 351.8 mT	20.82 kg / 45.90 pounds 20820.0 g / 204.2 N	dangerous!
1 mm	3321 Gs 332.1 mT	18.55 kg / 40.89 pounds 18548.8 g / 182.0 N	dangerous!
2 mm	3106 Gs 310.6 mT	16.23 kg / 35.77 pounds 16226.1 g / 159.2 N	dangerous!
3 mm	2883 Gs 288.3 mT	13.98 kg / 30.82 pounds 13978.2 g / 137.1 N	dangerous!
5 mm	2437 Gs 243.7 mT	9.99 kg / 22.02 pounds 9987.1 g / 98.0 N	warning
10 mm	1500 Gs 150.0 mT	3.78 kg / 8.34 pounds 3783.1 g / 37.1 N	warning
15 mm	905 Gs 90.5 mT	1.38 kg / 3.04 pounds 1379.2 g / 13.5 N	weak grip
20 mm	563 Gs 56.3 mT	0.53 kg / 1.17 pounds 532.4 g / 5.2 N	weak grip
30 mm	247 Gs 24.7 mT	0.10 kg / 0.23 pounds 102.4 g / 1.0 N	weak grip
50 mm	72 Gs 7.2 mT	0.01 kg / 0.02 pounds 8.7 g / 0.1 N	weak grip

Pulling power drops sharply with every subsequent millimeter of distance. Remember that even the smallest gap (e.g., dirt, varnish, veneer) noticeably reduces the pull force. Neodymiums work strongest at the point of direct contact; air break weakens the power. See how quickly the parameters drop, when the magnet does not adhere flatly to the steel surface. When calculating the arrangement, discard unnecessary gaps.

Table 2: Sliding force (wall)
MW 29x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.16 kg / 9.18 pounds 4164.0 g / 40.8 N
1 mm	Stal (~0.2)	3.71 kg / 8.18 pounds 3710.0 g / 36.4 N
2 mm	Stal (~0.2)	3.25 kg / 7.16 pounds 3246.0 g / 31.8 N
3 mm	Stal (~0.2)	2.80 kg / 6.16 pounds 2796.0 g / 27.4 N
5 mm	Stal (~0.2)	2.00 kg / 4.40 pounds 1998.0 g / 19.6 N
10 mm	Stal (~0.2)	0.76 kg / 1.67 pounds 756.0 g / 7.4 N
15 mm	Stal (~0.2)	0.28 kg / 0.61 pounds 276.0 g / 2.7 N
20 mm	Stal (~0.2)	0.11 kg / 0.23 pounds 106.0 g / 1.0 N
30 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 20.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N

This section presents the theoretical shear load necessary to cause the shifting of the magnet downwards along a vertical steel plate (assuming typical friction). The holding force depends on the separation distance between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 29x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	6.25 kg / 13.77 pounds 6246.0 g / 61.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.16 kg / 9.18 pounds 4164.0 g / 40.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.08 kg / 4.59 pounds 2082.0 g / 20.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	10.41 kg / 22.95 pounds 10410.0 g / 102.1 N

When mounting a element on a vertical surface (e.g., a board), it you can count on only approx. 20%-30% of its maximum pull force. Gravity as well as a low friction coefficient influence the fact that holders move down easier than they pop off the substrate. Planning a hanger? Remember that the shear force is significantly lower than the maximum static pull force. On a painted metal, the holder will slip down under a much lighter load. Utilizing a rubberized coating can drastically raise the stability.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 29x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.04 kg / 2.30 pounds 1041.0 g / 10.2 N
1 mm	13%	2.60 kg / 5.74 pounds 2602.5 g / 25.5 N
2 mm	25%	5.21 kg / 11.48 pounds 5205.0 g / 51.1 N
3 mm	38%	7.81 kg / 17.21 pounds 7807.5 g / 76.6 N
5 mm	63%	13.01 kg / 28.69 pounds 13012.5 g / 127.7 N
10 mm	100%	20.82 kg / 45.90 pounds 20820.0 g / 204.2 N
11 mm	100%	20.82 kg / 45.90 pounds 20820.0 g / 204.2 N
12 mm	100%	20.82 kg / 45.90 pounds 20820.0 g / 204.2 N

A thin metal plate cannot absorb the full magnetic flux, which weakens actual performance of the magnet. If you attach a powerful product to a too thin substrate, the flux will pass right through and the pull force will drop sharply. To utilize the maximum of this magnet's potential, you require a sufficiently solid backing of steel. The material oversaturation means that on sheet metal structures (e.g., car bodies), the magnet holds weaker. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal resistance (material behavior) - power drop
MW 29x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	20.82 kg / 45.90 pounds 20820.0 g / 204.2 N	OK
40 °C	-2.2%	20.36 kg / 44.89 pounds 20362.0 g / 199.8 N	OK
60 °C	-4.4%	19.90 kg / 43.88 pounds 19903.9 g / 195.3 N
80 °C	-6.6%	19.45 kg / 42.87 pounds 19445.9 g / 190.8 N
100 °C	-28.8%	14.82 kg / 32.68 pounds 14823.8 g / 145.4 N

Ordinary NdFeB products lose parameters past the thermal threshold. Protect against heat – excessive heat can irreversibly demagnetize this magnet. With increasing heat, the magnet's capacity briefly lowers. Avoid using this product close to ovens exceeding its working range. Too high temperature will lead to irreversible degradation of magnetism.

*Important note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) are more susceptible to demagnetization 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 (attraction) - field range
MW 29x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	50.40 kg / 111.11 pounds 5 016 Gs	7.56 kg / 16.67 pounds 7560 g / 74.2 N	N/A
1 mm	47.70 kg / 105.17 pounds 6 845 Gs	7.16 kg / 15.78 pounds 7156 g / 70.2 N	42.93 kg / 94.65 pounds ~0 Gs
2 mm	44.90 kg / 98.99 pounds 6 641 Gs	6.74 kg / 14.85 pounds 6735 g / 66.1 N	40.41 kg / 89.09 pounds ~0 Gs
3 mm	42.08 kg / 92.77 pounds 6 429 Gs	6.31 kg / 13.92 pounds 6312 g / 61.9 N	37.87 kg / 83.50 pounds ~0 Gs
5 mm	36.52 kg / 80.52 pounds 5 990 Gs	5.48 kg / 12.08 pounds 5478 g / 53.7 N	32.87 kg / 72.47 pounds ~0 Gs
10 mm	24.18 kg / 53.30 pounds 4 873 Gs	3.63 kg / 7.99 pounds 3626 g / 35.6 N	21.76 kg / 47.97 pounds ~0 Gs
20 mm	9.16 kg / 20.19 pounds 2 999 Gs	1.37 kg / 3.03 pounds 1374 g / 13.5 N	8.24 kg / 18.17 pounds ~0 Gs
50 mm	0.54 kg / 1.19 pounds 729 Gs	0.08 kg / 0.18 pounds 81 g / 0.8 N	0.49 kg / 1.07 pounds ~0 Gs
60 mm	0.25 kg / 0.55 pounds 493 Gs	0.04 kg / 0.08 pounds 37 g / 0.4 N	0.22 kg / 0.49 pounds ~0 Gs
70 mm	0.12 kg / 0.27 pounds 347 Gs	0.02 kg / 0.04 pounds 18 g / 0.2 N	0.11 kg / 0.24 pounds ~0 Gs
80 mm	0.06 kg / 0.14 pounds 252 Gs	0.01 kg / 0.02 pounds 10 g / 0.1 N	0.06 kg / 0.13 pounds ~0 Gs
90 mm	0.04 kg / 0.08 pounds 188 Gs	0.01 kg / 0.01 pounds 5 g / 0.1 N	0.03 kg / 0.07 pounds ~0 Gs
100 mm	0.02 kg / 0.05 pounds 144 Gs	0.00 kg / 0.01 pounds 3 g / 0.0 N	0.02 kg / 0.04 pounds ~0 Gs

Two magnets interact from a significantly greater distance than a magnet and steel combination. The connection of two magnets creates a more powerful interaction and a further horizon of operation. Designing a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the collision energy is extreme. The levitation is slightly lower than the attraction, but still significant.
*Flux density between like poles drops to ~0 Gs at the midpoint between the magnets (due to field cancellation).
Attention: Estimates show friction force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MW 29x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	13.5 cm
Hearing aid	10 Gs (1.0 mT)	10.5 cm
Timepiece	20 Gs (2.0 mT)	8.5 cm
Mobile device	40 Gs (4.0 mT)	6.5 cm
Remote	50 Gs (5.0 mT)	6.0 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Powerful magnet radiation is a serious hazard to electronics as well as medical implants. These magnets generate a flux that destroys function of digital equipment. Notice: the invisible magnetic field penetrates the body and plastic. Exceptional care must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
MW 29x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.90 km/h (6.36 m/s)	1.00 J
30 mm	35.92 km/h (9.98 m/s)	2.47 J
50 mm	46.24 km/h (12.85 m/s)	4.09 J
100 mm	65.38 km/h (18.16 m/s)	8.17 J

Magnetic elements are delicate – a collision with steel risks their cracking. Pay attention to connection velocity – a magnet released freely turns into a projectile. Striking energy can cause material chips or injury to fingers. Be sure to control the product during bringing near metal so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear eye protection when playing with powerful specimens.

Table 9: Coating parameters (durability)
MW 29x10 / 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 (P_c)
MW 29x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	24 471 Mx	244.7 µWb
P_c Coefficient	0.45	Low (Flat)

Total magnetic flux passing through the pole surface. Essential parameter in coil applications as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Physics of underwater searching
MW 29x10 / N38

Environment	Effective steel pull	Effect
Air (land)	20.82 kg	Standard
Water (riverbed)	23.84 kg (+3.02 kg buoyancy gain)	+14.5%

Corrosion 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. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Note: On a vertical surface, the magnet holds only approx. 20-30% of its max power.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) severely limits the holding force.

3. Thermal stability

*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) = 0.45

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

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: 010053-2026

Measurement Calculator

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MPL 40x20x5 / N38 - lamellar magnet

12.24 ZŁ brutto / pcs

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UMH 60x15x69 [M8] / N38 - magnetic holder with hook

143.91 ZŁ brutto / pcs

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SM 32x400 [2xM8] / N42 - magnetic separator

1193.10 ZŁ brutto / pcs

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MW 15x4 / N38 - cylindrical magnet

1.968 ZŁ brutto / pcs

This product is an extremely powerful cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø29x10 mm, guarantees optimal power. The MW 29x10 / N38 component boasts high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a magnetic rod with significant force (approx. 20.82 kg), this product is in stock from our warehouse in Poland, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 204.22 N with a weight of only 49.54 g, this rod is indispensable in miniature devices and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, you must not use force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability 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 (Ø29x10), 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 Ø29x10 mm, which, at a weight of 49.54 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 20.82 kg (force ~204.22 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 10 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.

Pros as well as cons of rare earth magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

Their power is maintained, and after around 10 years it decreases only by ~1% (theoretically),
They are resistant to demagnetization induced by external disturbances,
In other words, due to the glossy surface of gold, the element becomes visually attractive,
Magnets have excellent magnetic induction on the active area,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Possibility of detailed creating and modifying to individual requirements,
Versatile presence in high-tech industry – they are utilized in hard drives, electric motors, advanced medical instruments, also technologically advanced constructions.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:

They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Due to limitations in realizing nuts and complicated forms in magnets, we recommend using a housing - magnetic mount.
Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small elements of these products can disrupt the diagnostic process medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Breakaway force was determined for optimal configuration, assuming:

using a base made of low-carbon steel, functioning as a circuit closing element
whose thickness is min. 10 mm
with a plane free of scratches
under conditions of no distance (surface-to-surface)
during pulling in a direction vertical to the mounting surface
in temp. approx. 20°C

Lifting capacity in real conditions – factors

Holding efficiency impacted by working environment parameters, such as (from priority):

Air gap (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to paint, corrosion or debris).
Load vector – highest force is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
Steel type – low-carbon steel attracts best. Alloy steels lower magnetic properties and holding force.
Surface structure – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Precautions when working with neodymium magnets

Allergic reactions

A percentage of the population suffer from a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Extended handling can result in dermatitis. We strongly advise use protective gloves.

Beware of splinters

Neodymium magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets will cause them cracking into small pieces.

Crushing risk

Pinching hazard: The attraction force is so great that it can result in blood blisters, crushing, and even bone fractures. Use thick gloves.

Cards and drives

Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Product not for children

Absolutely store magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are very dangerous.

Permanent damage

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

Dust is flammable

Mechanical processing of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Warning for heart patients

Warning for patients: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Precision electronics

Note: rare earth magnets generate a field that disrupts sensitive sensors. Maintain a safe distance from your phone, device, and GPS.

Do not underestimate power

Exercise caution. Neodymium magnets attract from a long distance and snap with massive power, often quicker than you can react.

Caution! Learn more about risks in the article: Safety of working with magnets.

MW 29x10 / N38 - cylindrical magnet

Technical details - MW 29x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the product - data

Table 1: Static pull force (force vs gap) - interaction chart MW 29x10 / N38

Table 2: Sliding force (wall) MW 29x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 29x10 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 29x10 / N38

Table 5: Thermal resistance (material behavior) - power drop MW 29x10 / N38

Table 6: Two magnets (attraction) - field range MW 29x10 / N38

Table 7: Protective zones (electronics) - warnings MW 29x10 / N38

Table 8: Collisions (kinetic energy) - collision effects MW 29x10 / N38

Table 9: Coating parameters (durability) MW 29x10 / N38

Table 10: Electrical data (Pc) MW 29x10 / N38

Table 11: Physics of underwater searching MW 29x10 / N38

1. Shear force

2. Plate thickness effect

3. Thermal stability

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

Elemental analysis

Environmental data

Pulling force

Field Strength

See also products

MPL 40x20x5 / N38 - lamellar magnet

UMH 60x15x69 [M8] / N38 - magnetic holder with hook

SM 32x400 [2xM8] / N42 - magnetic separator

MW 15x4 / N38 - cylindrical magnet

Pros as well as cons of rare earth magnets.

Pros

Limitations

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Lifting capacity in real conditions – factors

Precautions when working with neodymium magnets

Allergic reactions

Beware of splinters

Crushing risk

Cards and drives

Product not for children

Permanent damage

Dust is flammable

Warning for heart patients

Precision electronics

Do not underestimate power

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - interaction chart
MW 29x10 / N38

Table 2: Sliding force (wall)
MW 29x10 / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 29x10 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 29x10 / N38

Table 5: Thermal resistance (material behavior) - power drop
MW 29x10 / N38

Table 6: Two magnets (attraction) - field range
MW 29x10 / N38

Table 7: Protective zones (electronics) - warnings
MW 29x10 / N38

Table 8: Collisions (kinetic energy) - collision effects
MW 29x10 / N38

Table 9: Coating parameters (durability)
MW 29x10 / N38

Table 10: Electrical data (P_c)
MW 29x10 / N38

Table 11: Physics of underwater searching
MW 29x10 / N38