Product available Ships tomorrow

MW 28.9x10 / 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 010051

GTIN/EAN: 5906301810506

Diameter Ø

28.9 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

49.2 g

Magnetization Direction

→ diametrical

Load capacity

20.74 kg / 203.46 N

Magnetic Induction

352.70 mT / 3527 Gs

Coating

[NiCuNi] Nickel

see specifications »

23.99 ZŁ with VAT / pcs + price for transport

19.50 ZŁ net + 23% VAT / pcs

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Technical data - MW 28.9x10 / N38 - cylindrical magnet

Specification / characteristics - MW 28.9x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010051
GTIN/EAN	5906301810506
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	28.9 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	49.2 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	20.74 kg / 203.46 N
Magnetic Induction ~ ?	352.70 mT / 3527 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 28.9x10 / 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 modeling of the product - report

The following data represent the result of a mathematical analysis. Values are based on algorithms for the material Nd₂Fe₁₄B. Operational conditions might slightly differ. Please consider these data as a supplementary guide when designing systems.

Table 1: Static force (force vs gap) - power drop
MW 28.9x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3526 Gs 352.6 mT	20.74 kg / 45.72 LBS 20740.0 g / 203.5 N	crushing
1 mm	3327 Gs 332.7 mT	18.47 kg / 40.71 LBS 18466.2 g / 181.2 N	crushing
2 mm	3111 Gs 311.1 mT	16.14 kg / 35.59 LBS 16142.6 g / 158.4 N	crushing
3 mm	2886 Gs 288.6 mT	13.90 kg / 30.63 LBS 13895.8 g / 136.3 N	crushing
5 mm	2438 Gs 243.8 mT	9.91 kg / 21.85 LBS 9912.0 g / 97.2 N	medium risk
10 mm	1497 Gs 149.7 mT	3.74 kg / 8.24 LBS 3739.6 g / 36.7 N	medium risk
15 mm	903 Gs 90.3 mT	1.36 kg / 3.00 LBS 1359.1 g / 13.3 N	weak grip
20 mm	560 Gs 56.0 mT	0.52 kg / 1.15 LBS 523.5 g / 5.1 N	weak grip
30 mm	245 Gs 24.5 mT	0.10 kg / 0.22 LBS 100.4 g / 1.0 N	weak grip
50 mm	71 Gs 7.1 mT	0.01 kg / 0.02 LBS 8.5 g / 0.1 N	weak grip

Pulling power weakens significantly per each millimeter of gap. Keep in mind that every additional insulation layer (e.g., contamination, paint, rust) significantly diminishes the holding power. Neodymiums operate optimally in perfect adhesion; distance weakens the power. Observe how rapidly the parameters fall, when the magnet does not adhere flatly to the steel surface. When designing the assembly, avoid additional spacers.

Table 2: Slippage load (wall)
MW 28.9x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.15 kg / 9.14 LBS 4148.0 g / 40.7 N
1 mm	Stal (~0.2)	3.69 kg / 8.14 LBS 3694.0 g / 36.2 N
2 mm	Stal (~0.2)	3.23 kg / 7.12 LBS 3228.0 g / 31.7 N
3 mm	Stal (~0.2)	2.78 kg / 6.13 LBS 2780.0 g / 27.3 N
5 mm	Stal (~0.2)	1.98 kg / 4.37 LBS 1982.0 g / 19.4 N
10 mm	Stal (~0.2)	0.75 kg / 1.65 LBS 748.0 g / 7.3 N
15 mm	Stal (~0.2)	0.27 kg / 0.60 LBS 272.0 g / 2.7 N
20 mm	Stal (~0.2)	0.10 kg / 0.23 LBS 104.0 g / 1.0 N
30 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 20.0 g / 0.2 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N

The table below calculates the estimated weight limit necessary to initiate the downward movement of the magnet down along a upright metal surface (considering typical friction coefficient). This value varies with the separation distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - vertical pull
MW 28.9x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	6.22 kg / 13.72 LBS 6222.0 g / 61.0 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.15 kg / 9.14 LBS 4148.0 g / 40.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.07 kg / 4.57 LBS 2074.0 g / 20.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	10.37 kg / 22.86 LBS 10370.0 g / 101.7 N

When mounting a holder on a vertical wall (e.g., a car body), it you can count on only approx. 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip influence the fact that products slide down easier than they pull off. Designing a wall mount? Note that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the element will slide down under a noticeably lighter load. Utilizing a rubberized layer can effectively increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 28.9x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.04 kg / 2.29 LBS 1037.0 g / 10.2 N
1 mm	13%	2.59 kg / 5.72 LBS 2592.5 g / 25.4 N
2 mm	25%	5.19 kg / 11.43 LBS 5185.0 g / 50.9 N
3 mm	38%	7.78 kg / 17.15 LBS 7777.5 g / 76.3 N
5 mm	63%	12.96 kg / 28.58 LBS 12962.5 g / 127.2 N
10 mm	100%	20.74 kg / 45.72 LBS 20740.0 g / 203.5 N
11 mm	100%	20.74 kg / 45.72 LBS 20740.0 g / 203.5 N
12 mm	100%	20.74 kg / 45.72 LBS 20740.0 g / 203.5 N

A thin metal plate is not enough to take in the full magnetic flux, which squanders power of the magnet. If you attach a powerful product to a too thin substrate, the flux will pass right through and the holding will be smaller. To utilize 100% of this magnet's power, you require a sufficiently solid element of steel. The saturation effect means that on thin elements (e.g., appliance housings), the magnet shows lower pull force. We suggest choosing the steel thickness according to the table below.

Table 5: Working in heat (stability) - power drop
MW 28.9x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	20.74 kg / 45.72 LBS 20740.0 g / 203.5 N	OK
40 °C	-2.2%	20.28 kg / 44.72 LBS 20283.7 g / 199.0 N	OK
60 °C	-4.4%	19.83 kg / 43.71 LBS 19827.4 g / 194.5 N
80 °C	-6.6%	19.37 kg / 42.71 LBS 19371.2 g / 190.0 N
100 °C	-28.8%	14.77 kg / 32.56 LBS 14766.9 g / 144.9 N

Standard neodymium magnets irreversibly lose strength past the thermal threshold. Protect against heat – excessive heat can irreversibly destroy this magnet. As the temperature rises, the neodymium's power briefly lowers. Refrain from using this product close to heaters exceeding its operating temperature limit. Too high temperature will result in permanent loss of magnetic properties.

*Engineering note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (low Pc) are more susceptible to demagnetization sooner compared to rod magnets. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field collision
MW 28.9x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	50.29 kg / 110.86 LBS 5 022 Gs	7.54 kg / 16.63 LBS 7543 g / 74.0 N	N/A
1 mm	47.58 kg / 104.90 LBS 6 860 Gs	7.14 kg / 15.74 LBS 7138 g / 70.0 N	42.83 kg / 94.41 LBS ~0 Gs
2 mm	44.77 kg / 98.71 LBS 6 655 Gs	6.72 kg / 14.81 LBS 6716 g / 65.9 N	40.30 kg / 88.84 LBS ~0 Gs
3 mm	41.95 kg / 92.48 LBS 6 441 Gs	6.29 kg / 13.87 LBS 6292 g / 61.7 N	37.75 kg / 83.23 LBS ~0 Gs
5 mm	36.38 kg / 80.20 LBS 5 999 Gs	5.46 kg / 12.03 LBS 5457 g / 53.5 N	32.74 kg / 72.18 LBS ~0 Gs
10 mm	24.03 kg / 52.98 LBS 4 876 Gs	3.60 kg / 7.95 LBS 3605 g / 35.4 N	21.63 kg / 47.69 LBS ~0 Gs
20 mm	9.07 kg / 19.99 LBS 2 995 Gs	1.36 kg / 3.00 LBS 1360 g / 13.3 N	8.16 kg / 17.99 LBS ~0 Gs
50 mm	0.53 kg / 1.17 LBS 726 Gs	0.08 kg / 0.18 LBS 80 g / 0.8 N	0.48 kg / 1.06 LBS ~0 Gs
60 mm	0.24 kg / 0.54 LBS 491 Gs	0.04 kg / 0.08 LBS 37 g / 0.4 N	0.22 kg / 0.48 LBS ~0 Gs
70 mm	0.12 kg / 0.26 LBS 345 Gs	0.02 kg / 0.04 LBS 18 g / 0.2 N	0.11 kg / 0.24 LBS ~0 Gs
80 mm	0.06 kg / 0.14 LBS 250 Gs	0.01 kg / 0.02 LBS 9 g / 0.1 N	0.06 kg / 0.13 LBS ~0 Gs
90 mm	0.04 kg / 0.08 LBS 187 Gs	0.01 kg / 0.01 LBS 5 g / 0.1 N	0.03 kg / 0.07 LBS ~0 Gs
100 mm	0.02 kg / 0.05 LBS 143 Gs	0.00 kg / 0.01 LBS 3 g / 0.0 N	0.02 kg / 0.04 LBS ~0 Gs

Two magnetic products interact from a significantly greater distance than a neodymium and metal combination. Such a system of magnet-to-magnet generates a stronger field and a further horizon of performance. Want to build a powerful holder? Apply two magnets instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the collision energy is massive. The repulsion force is a bit weaker than the attraction, but still significant.
*The magnetic induction between like poles reaches ~0 Gs at the geometric center between the magnets (due to field cancellation).
Important: Estimates show sliding force of a pair of same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - warnings
MW 28.9x10 / 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
Phone / Smartphone	40 Gs (4.0 mT)	6.5 cm
Car key	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 large risk to electronic devices as well as medical implants. These NdFeB products produce a flux that destroys function of digital equipment. Remember: the invisible magnetic field penetrates the body and glass. 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. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 28.9x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.92 km/h (6.37 m/s)	1.00 J
30 mm	35.97 km/h (9.99 m/s)	2.46 J
50 mm	46.31 km/h (12.86 m/s)	4.07 J
100 mm	65.48 km/h (18.19 m/s)	8.14 J

NdFeB products are very brittle – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can cause material chips or painful pinches to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when working with large magnets.

Table 9: Anti-corrosion coating durability
MW 28.9x10 / 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. Note the thickness of the protective layer.

Table 10: Construction data (Flux)
MW 28.9x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	24 347 Mx	243.5 µWb
P_c Coefficient	0.45	Low (Flat)

Flux value emitted by the pole surface. Essential parameter in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 28.9x10 / N38

Environment	Effective steel pull	Effect
Air (land)	20.74 kg	Standard
Water (riverbed)	23.75 kg (+3.01 kg buoyancy gain)	+14.5%

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

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its nominal pull.

2. Steel saturation

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

3. Temperature resistance

*For N38 grade, 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 specification and ecology

Chemical composition

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: 010051-2026

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The presented product is an extremely powerful rod magnet, composed of durable NdFeB material, which, at dimensions of Ø28.9x10 mm, guarantees the highest energy density. The MW 28.9x10 / N38 component 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. 20.74 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

It finds application in modeling, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 203.46 N with a weight of only 49.2 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 28.9.1 mm) using epoxy glues. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Magnets NdFeB grade N38 are strong enough for 90% of applications in modeling and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø28.9x10), 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 Ø28.9x10 mm, which, at a weight of 49.2 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 20.74 kg (force ~203.46 N), which, with such defined dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

This rod magnet 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 through the diameter if your project requires it.

Pros and cons of rare earth magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

They retain full power for around 10 years – the loss is just ~1% (based on simulations),
Neodymium magnets prove to be remarkably resistant to demagnetization caused by external field sources,
Thanks to the shiny finish, the surface of nickel, gold-plated, or silver-plated gives an clean appearance,
Magnetic induction on the working layer of the magnet turns out to be exceptional,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures approaching 230°C and above...
Possibility of individual modeling and optimizing to complex requirements,
Universal use in future technologies – they serve a role in computer drives, brushless drives, medical equipment, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in compact constructions

Cons

Cons of neodymium magnets: application proposals

Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only secures them against impacts but also raises their durability
Neodymium magnets decrease 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 stability even at temperatures up to 230°C
They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We suggest cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complex forms.
Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small components of these products are able to complicate diagnosis medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

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

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

using a base made of high-permeability steel, serving as a magnetic yoke
with a cross-section of at least 10 mm
with a surface free of scratches
with total lack of distance (no paint)
under vertical force direction (90-degree angle)
in neutral thermal conditions

Practical lifting capacity: influencing factors

In real-world applications, the actual holding force results from several key aspects, listed from most significant:

Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
Plate material – mild steel attracts best. Alloy steels lower magnetic properties and lifting capacity.
Surface condition – smooth surfaces ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet and the plate decreases the lifting capacity.

Safe handling of neodymium magnets

Cards and drives

Equipment safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).

Power loss in heat

Keep cool. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Powerful field

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Life threat

People with a pacemaker must keep an large gap from magnets. The magnetic field can stop the operation of the implant.

Swallowing risk

Strictly keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are life-threatening.

Shattering risk

Despite the nickel coating, the material is delicate and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Do not drill into magnets

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Warning for allergy sufferers

Some people suffer from a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling may cause a rash. We strongly advise wear safety gloves.

Compass and GPS

Note: rare earth magnets generate a field that confuses sensitive sensors. Keep a separation from your phone, device, and GPS.

Crushing force

Pinching hazard: The pulling power is so great that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Caution! Looking for details? Read our article: Are neodymium magnets dangerous?

MW 28.9x10 / N38 - cylindrical magnet

Technical data - MW 28.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - report

Table 1: Static force (force vs gap) - power drop MW 28.9x10 / N38

Table 2: Slippage load (wall) MW 28.9x10 / N38

Table 3: Wall mounting (shearing) - vertical pull MW 28.9x10 / N38

Table 4: Material efficiency (saturation) - power losses MW 28.9x10 / N38

Table 5: Working in heat (stability) - power drop MW 28.9x10 / N38

Table 6: Two magnets (repulsion) - field collision MW 28.9x10 / N38

Table 7: Protective zones (electronics) - warnings MW 28.9x10 / N38

Table 8: Dynamics (kinetic energy) - warning MW 28.9x10 / N38

Table 9: Anti-corrosion coating durability MW 28.9x10 / N38

Table 10: Construction data (Flux) MW 28.9x10 / N38

Table 11: Hydrostatics and buoyancy MW 28.9x10 / N38

1. Wall mount (shear)

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

Other products

MW 38x12 / N38 - cylindrical magnet

MPL 50x20x10 / N38 - lamellar magnet

NC NeoCube fi 5 mm kuleczki srebrne / N38 - neocube

BM 380x180x70 [4x M8] - magnetic beam

Pros and cons of rare earth magnets.

Advantages

Cons

Holding force characteristics

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

Practical lifting capacity: influencing factors

Safe handling of neodymium magnets

Cards and drives

Power loss in heat

Powerful field

Life threat

Swallowing risk

Shattering risk

Do not drill into magnets

Warning for allergy sufferers

Compass and GPS

Crushing force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MW 28.9x10 / N38

Table 2: Slippage load (wall)
MW 28.9x10 / N38

Table 3: Wall mounting (shearing) - vertical pull
MW 28.9x10 / N38

Table 4: Material efficiency (saturation) - power losses
MW 28.9x10 / N38

Table 5: Working in heat (stability) - power drop
MW 28.9x10 / N38

Table 6: Two magnets (repulsion) - field collision
MW 28.9x10 / N38

Table 7: Protective zones (electronics) - warnings
MW 28.9x10 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 28.9x10 / N38

Table 9: Anti-corrosion coating durability
MW 28.9x10 / N38

Table 10: Construction data (Flux)
MW 28.9x10 / N38

Table 11: Hydrostatics and buoyancy
MW 28.9x10 / N38