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MW 70x40 / 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 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 parameters »

395.40 ZŁ with VAT / pcs + price for transport

321.46 ZŁ net + 23% VAT / pcs

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Technical of the product - 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 simulation of the assembly - data

The following values constitute the direct effect of a physical calculation. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Use these calculations as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - interaction chart
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 lbs 164240.0 g / 1611.2 N	critical level
1 mm	4538 Gs 453.8 mT	155.47 kg / 342.75 lbs 155467.9 g / 1525.1 N	critical level
2 mm	4409 Gs 440.9 mT	146.74 kg / 323.52 lbs 146744.5 g / 1439.6 N	critical level
3 mm	4279 Gs 427.9 mT	138.20 kg / 304.68 lbs 138201.8 g / 1355.8 N	critical level
5 mm	4017 Gs 401.7 mT	121.81 kg / 268.54 lbs 121806.5 g / 1194.9 N	critical level
10 mm	3376 Gs 337.6 mT	86.03 kg / 189.65 lbs 86025.3 g / 843.9 N	critical level
15 mm	2788 Gs 278.8 mT	58.69 kg / 129.38 lbs 58686.8 g / 575.7 N	critical level
20 mm	2279 Gs 227.9 mT	39.22 kg / 86.46 lbs 39215.6 g / 384.7 N	critical level
30 mm	1511 Gs 151.1 mT	17.22 kg / 37.97 lbs 17222.5 g / 169.0 N	critical level
50 mm	699 Gs 69.9 mT	3.69 kg / 8.13 lbs 3690.0 g / 36.2 N	medium risk

Pulling power drops drastically with every mm of gap. Remember that every additional insulation layer (e.g., contamination, varnish, dust) noticeably weakens the grip. Magnets operate optimally during direct contact; gap weakens the force. Notice how quickly the pull force drop, when the product does not adhere flatly to the steel surface. When designing the mounting, discard unnecessary gaps.

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

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

This section shows the approximate force sufficient to start the downward movement of the magnet downwards along a upright steel plate (considering standard friction coefficient). This parameter varies with the air gap between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
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 lbs 49272.0 g / 483.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	32.85 kg / 72.42 lbs 32848.0 g / 322.2 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	16.42 kg / 36.21 lbs 16424.0 g / 161.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	82.12 kg / 181.04 lbs 82120.0 g / 805.6 N

When mounting a holder on a vertical wall (e.g., a fridge), it will only hold just about 1/5 of its maximum pull force. Gravity and a weak degree of grip cause that magnets slip easier than they pull off. Designing a wall mount? Remember that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the magnet will slip down under a much lighter weight. Using a rubber coating can significantly increase the grip.

Table 4: Steel thickness (saturation) - 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 lbs 5474.7 g / 53.7 N
1 mm	8%	13.69 kg / 30.17 lbs 13686.7 g / 134.3 N
2 mm	17%	27.37 kg / 60.35 lbs 27373.3 g / 268.5 N
3 mm	25%	41.06 kg / 90.52 lbs 41060.0 g / 402.8 N
5 mm	42%	68.43 kg / 150.87 lbs 68433.3 g / 671.3 N
10 mm	83%	136.87 kg / 301.74 lbs 136866.7 g / 1342.7 N
11 mm	92%	150.55 kg / 331.91 lbs 150553.3 g / 1476.9 N
12 mm	100%	164.24 kg / 362.09 lbs 164240.0 g / 1611.2 N

A thin metal plate is incapable of take in the entire magnetic field, which squanders power of the magnet. If you install a neodymium to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize the maximum of this magnet's power, you need a suitably thick element of steel. The saturation effect causes that on sheet metal structures (e.g., appliance housings), the holder shows lower pull force. We suggest choosing the steel thickness from these parameters.

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

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

Classic neodymiums lose power after exceeding the maximum temperature. Watch out for overheating – excessive heat can irreversibly demagnetize this product. With every degree above norm, the magnet's power momentarily lowers. Refrain from using this magnet close to heaters higher than its working range. Ignoring the limit will lead to irreversible degradation of magnetic properties.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low Pc) may lose charge permanently at lower temperatures than long magnets. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (attraction) - field collision
MW 70x40 / N38

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

Two magnets attract each other from a significantly greater distance than a magnet and sheet combination. The connection of two magnets produces a massive flux and a further horizon of action. Designing a powerful holder? Use a pair of magnets instead of a neodymium and a striker plate. Remember that when connecting a pair of magnets, the pinch force is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Field value between like poles reaches ~0 Gs at the geometric center of the gap (resulting from vector opposition).
* Estimates apply to sliding force of dual same magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (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
Timepiece	20 Gs (2.0 mT)	23.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	17.5 cm
Car key	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 is a large risk to IT equipment as well as medical implants. These neodymiums generate a field that disrupts operation of digital equipment. Be aware: the invisible magnetic field acts through matter and housings. Exceptional care must be taken by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, car keys, membranes, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - 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

Neodymium magnets are prone to chipping – a violent impact against metal risks their cracking. Watch the impact speed – a neodymium left loose becomes dangerous. Kinetic force can destroy the magnet or dangerous crushing to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Coating parameters (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. Note the thickness of the protective layer.

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

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

Total magnetic flux emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

*Caution: On a vertical wall, the magnet retains merely approx. 20-30% of its max power.

2. Plate thickness effect

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

3. Power loss vs temp

*For standard magnets, 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

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%

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

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The offered product is an extremely powerful rod magnet, composed of advanced NdFeB material, which, with dimensions of Ø70x40 mm, guarantees optimal power. This specific item boasts 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 significant force (approx. 164.24 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced Hall effect sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force 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.

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 professional component. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most frequently chosen standard for industrial neodymium magnets, offering an optimal price-to-power ratio and operational stability. If you need even stronger 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 secures it 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. Such an arrangement is standard when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Pros

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

They retain full power for around 10 years – the loss is just ~1% (according to analyses),
They do not lose their magnetic properties even under external field action,
Thanks to the shiny finish, the coating of Ni-Cu-Ni, gold-plated, or silver-plated gives an professional appearance,
Magnets possess exceptionally strong magnetic induction on the active area,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Due to the ability of accurate shaping and adaptation to custom solutions, magnetic components can be produced in a broad palette of forms and dimensions, which expands the range of possible applications,
Significant place in high-tech industry – they find application in magnetic memories, motor assemblies, precision medical tools, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in small systems

Limitations

What to avoid - cons of neodymium magnets and ways of using them

At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Limited ability of making nuts in the magnet and complex forms - preferred is cover - mounting mechanism.
Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Additionally, small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

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

The load parameter shown concerns the maximum value, obtained under optimal environment, specifically:

with the application of a sheet made of special test steel, guaranteeing maximum field concentration
possessing a massiveness of at least 10 mm to ensure full flux closure
with a surface free of scratches
under conditions of no distance (surface-to-surface)
under perpendicular force direction (90-degree angle)
at ambient temperature room level

Determinants of lifting force in real conditions

Holding efficiency is affected by working environment parameters, mainly (from priority):

Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of nominal force).
Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Metal type – different alloys attracts identically. High carbon content worsen the interaction with the magnet.
Surface finish – ideal contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate decreases the load capacity.

H&S for magnets

Magnet fragility

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

Crushing force

Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Be careful!

Respect the power

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Danger to pacemakers

Patients with a ICD must maintain an absolute distance from magnets. The magnetic field can interfere with the operation of the implant.

Maximum temperature

Control the heat. Exposing the magnet above 80 degrees Celsius will ruin its properties and strength.

Keep away from computers

Data protection: Neodymium magnets can damage payment cards and delicate electronics (heart implants, medical aids, timepieces).

Combustion hazard

Combustion risk: Neodymium dust is explosive. Do not process magnets in home conditions as this risks ignition.

No play value

Always store magnets away from children. Choking hazard is significant, and the effects of magnets connecting inside the body are fatal.

Sensitization to coating

Some people experience a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to a rash. We recommend use protective gloves.

Compass and GPS

Note: neodymium magnets produce a field that disrupts sensitive sensors. Maintain a separation from your mobile, device, and GPS.

Attention! Learn more about risks in the article: Magnet Safety Guide.

MW 70x40 / N38 - cylindrical magnet

Technical of the product - MW 70x40 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - data

Table 1: Static pull force (pull vs distance) - interaction chart MW 70x40 / N38

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

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 70x40 / N38

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

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

Table 6: Two magnets (attraction) - field collision MW 70x40 / N38

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

Table 8: Collisions (cracking risk) - collision effects MW 70x40 / N38

Table 9: Coating parameters (durability) MW 70x40 / N38

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

Table 11: Physics of underwater searching MW 70x40 / N38

1. Wall mount (shear)

2. Plate thickness effect

3. Power loss vs temp

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

Material specification

Environmental data

Magnet pull force

Field Strength

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Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

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

Determinants of lifting force in real conditions

H&S for magnets

Magnet fragility

Crushing force

Respect the power

Danger to pacemakers

Maximum temperature

Keep away from computers

Combustion hazard

No play value

Sensitization to coating

Compass and GPS

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - interaction chart
MW 70x40 / N38

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

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 70x40 / N38

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

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

Table 6: Two magnets (attraction) - field collision
MW 70x40 / N38

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

Table 8: Collisions (cracking risk) - collision effects
MW 70x40 / N38

Table 9: Coating parameters (durability)
MW 70x40 / N38

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

Table 11: Physics of underwater searching
MW 70x40 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.