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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

product parameters »

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

Technical modeling of the product - report

Presented values represent the result of a mathematical simulation. Results were calculated on algorithms for the class Nd₂Fe₁₄B. Real-world parameters might slightly differ. Please consider these calculations as a supplementary guide when designing systems.

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

Grip strength decreases significantly per each millimeter of gap. Keep in mind that even the smallest gap (e.g., dirt, paint, rust) strongly reduces the pull force. Neodymiums work strongest at the point of direct contact; gap kills the force. Analyze how quickly the parameters plummet, when the product does not touch tightly to the metal substrate. When designing the assembly, 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 presents the approximate weight limit needed to cause the sliding of the magnet vertically along a upright metal surface (assuming standard friction). The holding force is a function of the gap size between the magnet and the metal.

Table 3: Vertical assembly (shearing) - 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 mounting a holder on a vertical wall (e.g., a board), it you can count on just about 1/5 of nominal attraction strength. Gravity and a low friction coefficient mean that products slip easier than they pull off. Planning a hanger? Consider that the sliding force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will slide down under a significantly smaller load. Using a rubber pad can drastically increase the grip.

Table 4: Material efficiency (saturation) - power losses
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 take in the full magnetic flux, which squanders power of the holder. Should you install a neodymium to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To utilize the maximum of this neodymium's potential, you need a suitably thick backing of steel. The saturation effect causes that on sheet metal structures (e.g., car bodies), the holder works worse. We suggest choosing the steel thickness from these parameters.

Table 5: Thermal resistance (material behavior) - thermal limit
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

Ordinary NdFeB products lose parameters past the thermal threshold. Watch out for overheating – excessive heat can irreversibly destroy this magnet. With increasing heat, the neodymium's capacity momentarily decreases. Do not use this product close to ovens higher than its working range. Ignoring the limit will result in permanent loss of magnetism.

*Technical advisory: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) risk losing magnetic properties under lower heat stress than taller cylinders. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 70x40 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding 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 strong neodymiums interact from a much further distance than a neodymium and metal setup. The connection of two magnets produces a massive flux and a further horizon of performance. Designing a powerful holder? Apply two magnets instead of a neodymium and a steel. Exercise caution that when connecting a pair of magnets, the impact force is huge. The levitation is marginally weaker than the attraction, but still impressive.
*The magnetic induction for N-N configuration is approximately ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Note: Results apply to sliding force of dual identical neodymium magnets (friction ~0.15 for Ni-Ni coating).

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
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

Extremely neodym field poses a large risk to IT equipment and medical implants. These NdFeB products generate a field that disrupts operation of digital equipment. Notice: the invisible magnetic field passes through tissues and plastic. Exceptional care must be exercised by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (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 very brittle – a strong collision with metal can result in shattering. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Striking energy can cause material chips or painful pinches to skin. Be sure to control the product during installation so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the magnet. Wear safety glasses when handling with powerful specimens.

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

Table 11: Underwater work (magnet fishing)
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!

The magnetic field penetrates through water without any losses. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

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

2. Efficiency vs thickness

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

3. Heat tolerance

*For standard magnets, the critical limit is 80°C.

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

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

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%

Sustainability

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

Measurement Calculator

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Force in kg

Pounds (lbs)

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Gauss (Gs)

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400.00 ZŁ brutto / pcs

The presented product is an extremely powerful cylinder magnet, composed of advanced NdFeB material, which, at dimensions of Ø70x40 mm, guarantees the highest energy density. This specific item features high dimensional repeatability and industrial build quality, making it an excellent 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 lightning-fast order fulfillment. Moreover, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in DIY projects, advanced robotics, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 1611.16 N with a weight of only 1154.54 g, this rod 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 long-term durability 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 operational stability. 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 available off-the-shelf in our warehouse.

This model is characterized by dimensions Ø70x40 mm, which, at a weight of 1154.54 g, makes it an element with high magnetic energy density. 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 external factors, 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.

Strengths and weaknesses of rare earth magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after 10 years the performance loss is only ~1% (based on calculations),
They show high resistance to demagnetization induced by presence of other magnetic fields,
Thanks to the shiny finish, the plating of nickel, gold, or silver-plated gives an elegant appearance,
Neodymium magnets achieve maximum magnetic induction on a small area, which increases force concentration,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Thanks to freedom in designing and the ability to customize to complex applications,
Universal use in innovative solutions – they are commonly used in data components, electric motors, advanced medical instruments, and technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in compact constructions

Cons

Cons of neodymium magnets: application proposals

To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing nuts and complex shapes in magnets, we recommend using a housing - magnetic mount.
Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child safety. Furthermore, small components of these products can be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Detachment force of the magnet in optimal conditions – what it depends on?

The load parameter shown refers to the peak performance, recorded under ideal test conditions, specifically:

on a block made of mild steel, effectively closing the magnetic field
whose transverse dimension reaches at least 10 mm
characterized by even structure
with direct contact (without coatings)
under axial force direction (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Practical aspects of lifting capacity – factors

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

Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
Force direction – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
Metal type – not every steel attracts identically. Alloy additives worsen the attraction effect.
Surface finish – full contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.

Warnings

Pacemakers

Life threat: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Data carriers

Very strong magnetic fields can destroy records on credit cards, HDDs, and storage devices. Keep a distance of at least 10 cm.

Swallowing risk

These products are not toys. Accidental ingestion of a few magnets can lead to them attracting across intestines, which poses a critical condition and requires urgent medical intervention.

Fragile material

Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Mechanical processing

Powder created during machining of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Precision electronics

Note: rare earth magnets produce a field that interferes with precision electronics. Keep a separation from your mobile, tablet, and navigation systems.

Powerful field

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

Thermal limits

Avoid heat. NdFeB magnets are susceptible to heat. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).

Metal Allergy

Studies show that nickel (the usual finish) is a strong allergen. If your skin reacts to metals, avoid touching magnets with bare hands or select encased magnets.

Crushing force

Big blocks can smash fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

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

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

Technical modeling of the product - report

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

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

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

Table 4: Material efficiency (saturation) - power losses MW 70x40 / N38

Table 5: Thermal resistance (material behavior) - thermal limit MW 70x40 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 70x40 / N38

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

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

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

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

Table 11: Underwater work (magnet fishing) MW 70x40 / N38

1. Shear force

2. Efficiency vs thickness

3. Heat tolerance

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

Elemental analysis

Sustainability

Magnet pull force

Field Strength

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LM TLN - 20 R / N38 - magnetic leviton

Strengths and weaknesses of rare earth magnets.

Pros

Cons

Pull force analysis

Detachment force of the magnet in optimal conditions – what it depends on?

Practical aspects of lifting capacity – factors

Warnings

Pacemakers

Data carriers

Swallowing risk

Fragile material

Mechanical processing

Precision electronics

Powerful field

Thermal limits

Metal Allergy

Crushing force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

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

Table 4: Material efficiency (saturation) - power losses
MW 70x40 / N38

Table 5: Thermal resistance (material behavior) - thermal limit
MW 70x40 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 70x40 / N38

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

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

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

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

Table 11: Underwater work (magnet fishing)
MW 70x40 / N38