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MW 70x40 / N38 - cylindrical magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN
Rating: 5

cylindrical magnet

Catalog no 010097

GTIN/EAN: 5906301810964

5.00

Diameter Ø

70 mm [±0,1 mm]

Height

40 mm [±0,1 mm]

Weight

1154.54 g

Magnetization Direction

↑ axial

Load capacity

164.24 kg / 1611.16 N

Magnetic Induction

466.52 mT / 4665 Gs

Coating

[NiCuNi] Nickel

check properties »

395.40 ZŁ with VAT / pcs + price for transport

321.46 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 70x40 / N38 - cylindrical magnet

Specification / characteristics - MW 70x40 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010097
GTIN/EAN	5906301810964
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	70 mm [±0,1 mm]
Height	40 mm [±0,1 mm]
Weight	1154.54 g
Magnetization Direction	↑ axial
Load capacity ~ ?	164.24 kg / 1611.16 N
Magnetic Induction ~ ?	466.52 mT / 4665 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 70x40 / 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 assembly - data

Presented data are the outcome of a physical analysis. Results rely on models for the class Nd₂Fe₁₄B. Real-world performance may differ. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs gap) - power drop
MW 70x40 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4665 Gs 466.5 mT	164.24 kg / 362.09 pounds 164240.0 g / 1611.2 N	crushing
1 mm	4538 Gs 453.8 mT	155.47 kg / 342.75 pounds 155467.9 g / 1525.1 N	crushing
2 mm	4409 Gs 440.9 mT	146.74 kg / 323.52 pounds 146744.5 g / 1439.6 N	crushing
3 mm	4279 Gs 427.9 mT	138.20 kg / 304.68 pounds 138201.8 g / 1355.8 N	crushing
5 mm	4017 Gs 401.7 mT	121.81 kg / 268.54 pounds 121806.5 g / 1194.9 N	crushing
10 mm	3376 Gs 337.6 mT	86.03 kg / 189.65 pounds 86025.3 g / 843.9 N	crushing
15 mm	2788 Gs 278.8 mT	58.69 kg / 129.38 pounds 58686.8 g / 575.7 N	crushing
20 mm	2279 Gs 227.9 mT	39.22 kg / 86.46 pounds 39215.6 g / 384.7 N	crushing
30 mm	1511 Gs 151.1 mT	17.22 kg / 37.97 pounds 17222.5 g / 169.0 N	crushing
50 mm	699 Gs 69.9 mT	3.69 kg / 8.13 pounds 3690.0 g / 36.2 N	warning

Grip strength weakens sharply with every subsequent millimeter of gap. Remember that even a very thin break (e.g., contamination, varnish, rust) significantly diminishes the holding power. Magnets operate strongest at the point of direct contact; air break kills the force. See how flashily the load capacity fall, when the product does not adhere directly to the metal substrate. When calculating the arrangement, eliminate additional spacers.

Table 2: Shear force (wall)
MW 70x40 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	32.85 kg / 72.42 pounds 32848.0 g / 322.2 N
1 mm	Stal (~0.2)	31.09 kg / 68.55 pounds 31094.0 g / 305.0 N
2 mm	Stal (~0.2)	29.35 kg / 64.70 pounds 29348.0 g / 287.9 N
3 mm	Stal (~0.2)	27.64 kg / 60.94 pounds 27640.0 g / 271.1 N
5 mm	Stal (~0.2)	24.36 kg / 53.71 pounds 24362.0 g / 239.0 N
10 mm	Stal (~0.2)	17.21 kg / 37.93 pounds 17206.0 g / 168.8 N
15 mm	Stal (~0.2)	11.74 kg / 25.88 pounds 11738.0 g / 115.1 N
20 mm	Stal (~0.2)	7.84 kg / 17.29 pounds 7844.0 g / 76.9 N
30 mm	Stal (~0.2)	3.44 kg / 7.59 pounds 3444.0 g / 33.8 N
50 mm	Stal (~0.2)	0.74 kg / 1.63 pounds 738.0 g / 7.2 N

The table below shows the estimated weight limit needed to initiate the slippage of the magnet downwards against a vertical metal surface (considering typical friction). This value is relative to the separation distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 70x40 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	49.27 kg / 108.63 pounds 49272.0 g / 483.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	32.85 kg / 72.42 pounds 32848.0 g / 322.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	16.42 kg / 36.21 pounds 16424.0 g / 161.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	82.12 kg / 181.04 pounds 82120.0 g / 805.6 N

When placing a element on a upright plane (e.g., a fridge), it you can count on just about 20%-30% of its maximum pull force. Gravitational force as well as a weak degree of grip influence the fact that magnets slide down faster than they pop off the substrate. Planning a wall mount? Remember that the sliding force is significantly lower than the maximum static pull force. On a slippery surface, the holder will slide down under a much lighter weight. Application of an anti-slip layer can drastically improve the result.

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 70x40 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	5.47 kg / 12.07 pounds 5474.7 g / 53.7 N
1 mm	8%	13.69 kg / 30.17 pounds 13686.7 g / 134.3 N
2 mm	17%	27.37 kg / 60.35 pounds 27373.3 g / 268.5 N
3 mm	25%	41.06 kg / 90.52 pounds 41060.0 g / 402.8 N
5 mm	42%	68.43 kg / 150.87 pounds 68433.3 g / 671.3 N
10 mm	83%	136.87 kg / 301.74 pounds 136866.7 g / 1342.7 N
11 mm	92%	150.55 kg / 331.91 pounds 150553.3 g / 1476.9 N
12 mm	100%	164.24 kg / 362.09 pounds 164240.0 g / 1611.2 N

A thin sheet cannot conduct the full magnetic flux, which wastes potential of the magnet. If you install a neodymium to a too thin substrate, the field will pass right through and the attraction force will be weaker. To squeeze the maximum of this magnet's power, you require a sufficiently solid element of steel. The saturation effect causes that on thin elements (e.g., thin profiles), the product shows lower pull force. We suggest choosing the steel dimension from these parameters.

Table 5: Working in heat (material behavior) - power drop
MW 70x40 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	164.24 kg / 362.09 pounds 164240.0 g / 1611.2 N	OK
40 °C	-2.2%	160.63 kg / 354.12 pounds 160626.7 g / 1575.7 N	OK
60 °C	-4.4%	157.01 kg / 346.15 pounds 157013.4 g / 1540.3 N	OK
80 °C	-6.6%	153.40 kg / 338.19 pounds 153400.2 g / 1504.9 N
100 °C	-28.8%	116.94 kg / 257.81 pounds 116938.9 g / 1147.2 N

Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Protect against heat – excessive heat can permanently destroy this product. With every degree above norm, the neodymium's force briefly lowers. Do not use this magnet near heat sources exceeding its operating temperature limit. Exceeding the critical threshold will cause permanent loss of magnetic properties.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization under lower heat stress than long magnets. Red status in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - forces in the system
MW 70x40 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	516.26 kg / 1138.16 pounds 5 679 Gs	77.44 kg / 170.72 pounds 77439 g / 759.7 N	N/A
1 mm	502.57 kg / 1107.98 pounds 9 205 Gs	75.39 kg / 166.20 pounds 75385 g / 739.5 N	452.31 kg / 997.18 pounds ~0 Gs
2 mm	488.69 kg / 1077.37 pounds 9 077 Gs	73.30 kg / 161.61 pounds 73303 g / 719.1 N	439.82 kg / 969.63 pounds ~0 Gs
3 mm	474.91 kg / 1047.01 pounds 8 948 Gs	71.24 kg / 157.05 pounds 71237 g / 698.8 N	427.42 kg / 942.31 pounds ~0 Gs
5 mm	447.76 kg / 987.15 pounds 8 688 Gs	67.16 kg / 148.07 pounds 67164 g / 658.9 N	402.99 kg / 888.43 pounds ~0 Gs
10 mm	382.88 kg / 844.10 pounds 8 034 Gs	57.43 kg / 126.62 pounds 57432 g / 563.4 N	344.59 kg / 759.69 pounds ~0 Gs
20 mm	270.41 kg / 596.14 pounds 6 752 Gs	40.56 kg / 89.42 pounds 40561 g / 397.9 N	243.37 kg / 536.53 pounds ~0 Gs
50 mm	81.66 kg / 180.03 pounds 3 710 Gs	12.25 kg / 27.01 pounds 12249 g / 120.2 N	73.50 kg / 162.03 pounds ~0 Gs
60 mm	54.14 kg / 119.35 pounds 3 021 Gs	8.12 kg / 17.90 pounds 8120 g / 79.7 N	48.72 kg / 107.41 pounds ~0 Gs
70 mm	36.14 kg / 79.69 pounds 2 469 Gs	5.42 kg / 11.95 pounds 5422 g / 53.2 N	32.53 kg / 71.72 pounds ~0 Gs
80 mm	24.40 kg / 53.80 pounds 2 028 Gs	3.66 kg / 8.07 pounds 3661 g / 35.9 N	21.96 kg / 48.42 pounds ~0 Gs
90 mm	16.70 kg / 36.82 pounds 1 678 Gs	2.51 kg / 5.52 pounds 2505 g / 24.6 N	15.03 kg / 33.14 pounds ~0 Gs
100 mm	11.60 kg / 25.57 pounds 1 398 Gs	1.74 kg / 3.84 pounds 1740 g / 17.1 N	10.44 kg / 23.01 pounds ~0 Gs

Two magnets interact from a much further distance than a magnet and sheet combination. The setup of two magnets produces a massive flux and a wider radius of action. Planning to create a solid fastener? Apply two magnets instead of a neodymium and a striker plate. Remember that when attracting two neodymiums, the impact force is massive. The repulsion force is slightly lower than the connection force, but still large.
*The magnetic induction for N-N configuration drops to ~0 Gs in the exact middle between the magnets (due to field cancellation).
Note: Results refer to friction force of two matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MW 70x40 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	37.5 cm
Hearing aid	10 Gs (1.0 mT)	29.5 cm
Mechanical watch	20 Gs (2.0 mT)	23.0 cm
Mobile device	40 Gs (4.0 mT)	17.5 cm
Remote	50 Gs (5.0 mT)	16.5 cm
Payment card	400 Gs (40.0 mT)	7.0 cm
HDD hard drive	600 Gs (60.0 mT)	5.5 cm

A strong magnetic field poses a serious hazard to electronics as well as medical implants. These NdFeB products generate a field that prevents correct functioning of digital equipment. Notice: the invisible magnetic field passes through tissues and plastic. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 70x40 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	15.47 km/h (4.30 m/s)	10.66 J
30 mm	22.16 km/h (6.15 m/s)	21.87 J
50 mm	27.27 km/h (7.58 m/s)	33.13 J
100 mm	38.07 km/h (10.57 m/s)	64.55 J

NdFeB products are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can trigger coating fragments or painful pinches to fingers. Be sure to control the product during installation so it doesn't hit with great force against the metal. A collision at high speed means shattering of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Anti-corrosion coating durability
MW 70x40 / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MW 70x40 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	180 982 Mx	1809.8 µWb
P_c Coefficient	0.64	High (Stable)

Flux value emitted by the magnet pole. Key data when building generators and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 70x40 / N38

Environment	Effective steel pull	Effect
Air (land)	164.24 kg	Standard
Water (riverbed)	188.05 kg (+23.81 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!

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 retains merely a fraction of its nominal pull.

2. Steel thickness impact

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.64

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

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: 010097-2026

Magnet Unit Converter

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This product is a very strong cylindrical magnet, composed of modern NdFeB material, which, with dimensions of Ø70x40 mm, guarantees maximum efficiency. The MW 70x40 / N38 component boasts a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 164.24 kg), this product is in stock from our warehouse in Poland, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing 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 1611.16 N with a weight of only 1154.54 g, this cylindrical magnet is indispensable in electronics 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., 70.1 mm) using epoxy glues. To ensure stability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen 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 (Ø70x40), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 70 mm and height 40 mm. The value of 1611.16 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1154.54 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 70 mm. 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.

Advantages and disadvantages of neodymium magnets.

Strengths

Besides their high retention, neodymium magnets are valued for these benefits:

They do not lose magnetism, even after nearly ten years – the reduction in power is only ~1% (according to tests),
They do not lose their magnetic properties even under close interference source,
The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to modularity in designing and the capacity to modify to specific needs,
Huge importance in modern technologies – they are utilized in computer drives, drive modules, medical equipment, and multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

Problematic aspects of neodymium magnets: application proposals

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
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
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
We recommend a housing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
Due to neodymium price, their price is relatively high,

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

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

using a base made of mild steel, functioning as a magnetic yoke
with a thickness of at least 10 mm
with a plane perfectly flat
under conditions of gap-free contact (surface-to-surface)
under axial force vector (90-degree angle)
at conditions approx. 20°C

Determinants of lifting force in real conditions

In practice, the real power depends on many variables, ranked from crucial:

Gap (between the magnet and the metal), because even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Plate material – mild steel attracts best. Alloy steels decrease magnetic permeability and lifting capacity.
Base smoothness – the more even the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

ICD Warning

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

GPS Danger

GPS units and smartphones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Crushing force

Danger of trauma: The pulling power is so great that it can cause blood blisters, pinching, and broken bones. Use thick gloves.

Heat sensitivity

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

Do not drill into magnets

Fire hazard: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

Product not for children

Neodymium magnets are not toys. Accidental ingestion of several magnets can lead to them attracting across intestines, which poses a severe health hazard and necessitates urgent medical intervention.

Protect data

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

Protective goggles

Beware of splinters. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.

Do not underestimate power

Handle magnets with awareness. Their huge power can surprise even experienced users. Plan your moves and respect their force.

Skin irritation risks

Some people experience a hypersensitivity to Ni, which is the standard coating for NdFeB magnets. Extended handling may cause an allergic reaction. We strongly advise use protective gloves.

Warning! Looking for details? Check our post: Why are neodymium magnets dangerous?

MW 70x40 / N38 - cylindrical magnet

Detailed specification - MW 70x40 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering analysis of the assembly - data

Table 1: Static pull force (pull vs gap) - power drop MW 70x40 / N38

Table 2: Shear force (wall) MW 70x40 / N38

Table 3: Vertical assembly (sliding) - vertical pull MW 70x40 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 70x40 / N38

Table 5: Working in heat (material behavior) - power drop MW 70x40 / N38

Table 6: Two magnets (repulsion) - forces in the system MW 70x40 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MW 70x40 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 70x40 / N38

Table 9: Anti-corrosion coating durability MW 70x40 / N38

Table 10: Construction data (Flux) MW 70x40 / N38

Table 11: Hydrostatics and buoyancy MW 70x40 / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Temperature resistance

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

Elemental analysis

Environmental data

Magnet pull force

Magnetic Field

Other products

MW 5x10 / N38 - cylindrical magnet

MPL 6x6x6 / N38 - lamellar magnet

SM 25x400 [2xM8] / N42 - magnetic separator

MPL 20x10x1 / N38 - lamellar magnet

Advantages and disadvantages of neodymium magnets.

Strengths

Weaknesses

Pull force analysis

Maximum magnetic pulling force – what contributes to it?

Determinants of lifting force in real conditions

Safety rules for work with neodymium magnets

ICD Warning

GPS Danger

Crushing force

Heat sensitivity

Do not drill into magnets

Product not for children

Protect data

Protective goggles

Do not underestimate power

Skin irritation risks

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - power drop
MW 70x40 / N38

Table 2: Shear force (wall)
MW 70x40 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MW 70x40 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 70x40 / N38

Table 5: Working in heat (material behavior) - power drop
MW 70x40 / N38

Table 6: Two magnets (repulsion) - forces in the system
MW 70x40 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MW 70x40 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 70x40 / N38

Table 9: Anti-corrosion coating durability
MW 70x40 / N38

Table 10: Construction data (Flux)
MW 70x40 / N38

Table 11: Hydrostatics and buoyancy
MW 70x40 / N38