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MW 20x35 / 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 010043

GTIN/EAN: 5906301810421

5.00

Diameter Ø

20 mm [±0,1 mm]

Height

35 mm [±0,1 mm]

Weight

82.47 g

Magnetization Direction

↑ axial

Load capacity

9.58 kg / 93.97 N

Magnetic Induction

595.77 mT / 5958 Gs

Coating

[NiCuNi] Nickel

product parameters »

49.52 ZŁ with VAT / pcs + price for transport

40.26 ZŁ net + 23% VAT / pcs

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Physical properties - MW 20x35 / N38 - cylindrical magnet

Specification / characteristics - MW 20x35 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010043
GTIN/EAN	5906301810421
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	20 mm [±0,1 mm]
Height	35 mm [±0,1 mm]
Weight	82.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	9.58 kg / 93.97 N
Magnetic Induction ~ ?	595.77 mT / 5958 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 20x35 / 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 - data

These values are the direct effect of a mathematical calculation. Values are based on models for the class Nd₂Fe₁₄B. Operational performance might slightly deviate from the simulation results. Use these data as a supplementary guide when designing systems.

Table 1: Static pull force (force vs gap) - characteristics
MW 20x35 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5955 Gs 595.5 mT	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N	warning
1 mm	5357 Gs 535.7 mT	7.75 kg / 17.09 lbs 7751.3 g / 76.0 N	warning
2 mm	4769 Gs 476.9 mT	6.14 kg / 13.55 lbs 6144.2 g / 60.3 N	warning
3 mm	4214 Gs 421.4 mT	4.80 kg / 10.58 lbs 4797.3 g / 47.1 N	warning
5 mm	3242 Gs 324.2 mT	2.84 kg / 6.26 lbs 2839.3 g / 27.9 N	warning
10 mm	1668 Gs 166.8 mT	0.75 kg / 1.66 lbs 751.8 g / 7.4 N	low risk
15 mm	921 Gs 92.1 mT	0.23 kg / 0.51 lbs 229.1 g / 2.2 N	low risk
20 mm	555 Gs 55.5 mT	0.08 kg / 0.18 lbs 83.1 g / 0.8 N	low risk
30 mm	246 Gs 24.6 mT	0.02 kg / 0.04 lbs 16.4 g / 0.2 N	low risk
50 mm	78 Gs 7.8 mT	0.00 kg / 0.00 lbs 1.6 g / 0.0 N	low risk

Pulling power weakens sharply with every mm of spacing. Remember that even the smallest gap (e.g., dirt, paint, dust) significantly diminishes the holding power. Magnetic products operate optimally at the point of direct contact; distance weakens the force. See how quickly the load capacity drop, when the product does not touch flatly to the metal substrate. When planning the mounting, discard unnecessary gaps.

Table 2: Slippage capacity (wall)
MW 20x35 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.92 kg / 4.22 lbs 1916.0 g / 18.8 N
1 mm	Stal (~0.2)	1.55 kg / 3.42 lbs 1550.0 g / 15.2 N
2 mm	Stal (~0.2)	1.23 kg / 2.71 lbs 1228.0 g / 12.0 N
3 mm	Stal (~0.2)	0.96 kg / 2.12 lbs 960.0 g / 9.4 N
5 mm	Stal (~0.2)	0.57 kg / 1.25 lbs 568.0 g / 5.6 N
10 mm	Stal (~0.2)	0.15 kg / 0.33 lbs 150.0 g / 1.5 N
15 mm	Stal (~0.2)	0.05 kg / 0.10 lbs 46.0 g / 0.5 N
20 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 16.0 g / 0.2 N
30 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data calculates the approximate shear load sufficient to start the shifting of the magnet vertically along a upright steel wall (considering standard friction coefficient). This parameter depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 20x35 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.87 kg / 6.34 lbs 2874.0 g / 28.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.92 kg / 4.22 lbs 1916.0 g / 18.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N

When hanging a magnet on a vertical plane (e.g., a fridge), it will maintain only about 1/5 of nominal attraction strength. Gravitational force as well as a low friction coefficient mean that holders slip easier than they pull off. Designing a vertical fastening? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a much lighter load. Utilizing a rubberized layer can significantly improve the result.

Table 4: Steel thickness (saturation) - power losses
MW 20x35 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
1 mm	25%	2.40 kg / 5.28 lbs 2395.0 g / 23.5 N
2 mm	50%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N
3 mm	75%	7.19 kg / 15.84 lbs 7185.0 g / 70.5 N
5 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N
10 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N
11 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N
12 mm	100%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N

A thin sheet is unable to take in the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a weak sheet, the magnetism will pass right through and the pull force will drop sharply. To achieve full efficiency of this neodymium's power, you need a suitably thick element of metal. The saturation phenomenon causes that on delicate walls (e.g., appliance housings), the magnet works worse. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 20x35 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	9.58 kg / 21.12 lbs 9580.0 g / 94.0 N	OK
40 °C	-2.2%	9.37 kg / 20.66 lbs 9369.2 g / 91.9 N	OK
60 °C	-4.4%	9.16 kg / 20.19 lbs 9158.5 g / 89.8 N	OK
80 °C	-6.6%	8.95 kg / 19.73 lbs 8947.7 g / 87.8 N
100 °C	-28.8%	6.82 kg / 15.04 lbs 6821.0 g / 66.9 N

Classic neodymiums change their properties strength above the temperature limit. Avoid high temperatures – excessive heat can irreversibly demagnetize this product. With every degree above norm, the neodymium's force momentarily lowers. Do not use this product close to heaters exceeding its working range. Too high temperature will lead to permanent loss of magnetism.

*Technical advisory: Heat tolerance 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. Warning indicator in the table points to a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - forces in the system
MW 20x35 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	68.69 kg / 151.44 lbs 6 132 Gs	10.30 kg / 22.72 lbs 10304 g / 101.1 N	N/A
1 mm	62.01 kg / 136.70 lbs 11 316 Gs	9.30 kg / 20.50 lbs 9301 g / 91.2 N	55.81 kg / 123.03 lbs ~0 Gs
2 mm	55.58 kg / 122.53 lbs 10 714 Gs	8.34 kg / 18.38 lbs 8337 g / 81.8 N	50.02 kg / 110.28 lbs ~0 Gs
3 mm	49.59 kg / 109.32 lbs 10 120 Gs	7.44 kg / 16.40 lbs 7438 g / 73.0 N	44.63 kg / 98.39 lbs ~0 Gs
5 mm	38.99 kg / 85.96 lbs 8 974 Gs	5.85 kg / 12.89 lbs 5849 g / 57.4 N	35.09 kg / 77.37 lbs ~0 Gs
10 mm	20.36 kg / 44.88 lbs 6 484 Gs	3.05 kg / 6.73 lbs 3054 g / 30.0 N	18.32 kg / 40.40 lbs ~0 Gs
20 mm	5.39 kg / 11.88 lbs 3 337 Gs	0.81 kg / 1.78 lbs 809 g / 7.9 N	4.85 kg / 10.70 lbs ~0 Gs
50 mm	0.25 kg / 0.55 lbs 718 Gs	0.04 kg / 0.08 lbs 37 g / 0.4 N	0.22 kg / 0.50 lbs ~0 Gs
60 mm	0.12 kg / 0.26 lbs 492 Gs	0.02 kg / 0.04 lbs 18 g / 0.2 N	0.11 kg / 0.23 lbs ~0 Gs
70 mm	0.06 kg / 0.13 lbs 352 Gs	0.01 kg / 0.02 lbs 9 g / 0.1 N	0.05 kg / 0.12 lbs ~0 Gs
80 mm	0.03 kg / 0.07 lbs 261 Gs	0.00 kg / 0.01 lbs 5 g / 0.0 N	0.03 kg / 0.07 lbs ~0 Gs
90 mm	0.02 kg / 0.04 lbs 200 Gs	0.00 kg / 0.01 lbs 3 g / 0.0 N	0.02 kg / 0.04 lbs ~0 Gs
100 mm	0.01 kg / 0.03 lbs 156 Gs	0.00 kg / 0.00 lbs 2 g / 0.0 N	0.01 kg / 0.02 lbs ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a magnet and steel setup. The connection of two magnets produces a massive flux and a wider radius of operation. Planning to create a solid fastener? Apply two magnets instead of a neodymium and a steel. Exercise caution that when attracting two neodymiums, the pinch force is extreme. The repulsion force is a bit weaker than the connection force, but still large.
*Field value between like poles is approximately ~0 Gs at the geometric center of the gap (resulting from vector opposition).
Important: Calculations refer to shear force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MW 20x35 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	15.0 cm
Hearing aid	10 Gs (1.0 mT)	11.5 cm
Mechanical watch	20 Gs (2.0 mT)	9.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	7.0 cm
Remote	50 Gs (5.0 mT)	6.5 cm
Payment card	400 Gs (40.0 mT)	2.5 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Powerful magnet radiation is a serious hazard to IT equipment as well as pacemakers. These magnets generate a flux that destroys function of digital equipment. Be aware: the invisible magnetic field penetrates the body and plastic. Increased vigilance must be taken by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and displays. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 20x35 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	11.39 km/h (3.16 m/s)	0.41 J
30 mm	18.85 km/h (5.24 m/s)	1.13 J
50 mm	24.31 km/h (6.75 m/s)	1.88 J
100 mm	34.37 km/h (9.55 m/s)	3.76 J

NdFeB products are delicate – a collision with steel can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can cause material chips or painful pinches to fingers. Always hold the magnet during mounting so it doesn't hit with great force against the metal. A collision at high speed ends with a crack of the neodymium. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MW 20x35 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MW 20x35 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	20 408 Mx	204.1 µWb
P_c Coefficient	1.16	High (Stable)

Total magnetic flux passing through the pole surface. Essential parameter in coil applications and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 20x35 / N38

Environment	Effective steel pull	Effect
Air (land)	9.58 kg	Standard
Water (riverbed)	10.97 kg (+1.39 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. Buoyancy helps in lifting finds.

1. Shear force

*Note: On a vertical surface, the magnet retains just a fraction of its nominal pull.

2. Plate thickness effect

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

3. Temperature resistance

*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) = 1.16

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

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%

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: 010043-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

Force in lbs

Magnetic Induction

Gauss (Gs)

Just fill in one field, and the converter compute the rest automatically.

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The presented product is a very strong cylindrical magnet, composed of modern NdFeB material, which, at dimensions of Ø20x35 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 9.58 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Additionally, its 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 DIY projects, advanced robotics, and broadly understood industry, serving as a positioning or actuating element. Thanks to the high power of 93.97 N with a weight of only 82.47 g, this cylindrical magnet is indispensable in miniature devices and wherever every gram matters.

Due to the brittleness of the NdFeB material, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this professional component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Grade N38 is the most popular standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø20x35), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

This model is characterized by dimensions Ø20x35 mm, which, at a weight of 82.47 g, makes it an element with impressive magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 9.58 kg (force ~93.97 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 35 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Strengths

Apart from their strong power, neodymium magnets have these key benefits:

They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
They retain their magnetic properties even under strong external field,
A magnet with a smooth nickel surface has an effective appearance,
Neodymium magnets achieve maximum magnetic induction on a small area, which ensures high operational effectiveness,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Possibility of exact modeling and adjusting to complex requirements,
Wide application in innovative solutions – they are utilized in hard drives, motor assemblies, advanced medical instruments, also multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in small systems

Limitations

What to avoid - cons of neodymium magnets and proposals for their use:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also increases their durability
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
Due to limitations in creating nuts and complex shapes in magnets, we propose using cover - magnetic mount.
Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that small components of these devices can complicate diagnosis medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Best holding force of the magnet in ideal parameters – what affects it?

The specified lifting capacity concerns the peak performance, obtained under ideal test conditions, namely:

with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
whose transverse dimension reaches at least 10 mm
characterized by smoothness
under conditions of no distance (metal-to-metal)
under vertical force vector (90-degree angle)
in stable room temperature

Impact of factors on magnetic holding capacity in practice

In real-world applications, the real power is determined by a number of factors, presented from most significant:

Air gap (betwixt the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, rust or debris).
Direction of force – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the power to be escaped to the other side.
Steel type – low-carbon steel attracts best. Alloy steels reduce magnetic permeability and lifting capacity.
Surface quality – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, 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, whereas under shearing force the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with NdFeB magnets

Power loss in heat

Watch the temperature. Exposing the magnet to high heat will permanently weaken its properties and strength.

Risk of cracking

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.

Respect the power

Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Life threat

For implant holders: Strong magnetic fields affect medical devices. Keep minimum 30 cm distance or request help to work with the magnets.

Keep away from computers

Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, timepieces).

GPS Danger

A powerful magnetic field disrupts the operation of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.

Avoid contact if allergic

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, cease working with magnets and use protective gear.

Product not for children

Only for adults. Small elements can be swallowed, leading to intestinal necrosis. Keep out of reach of children and animals.

Pinching danger

Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

Flammability

Mechanical processing of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Security! Need more info? Check our post: Why are neodymium magnets dangerous?

MW 20x35 / N38 - cylindrical magnet

Physical properties - MW 20x35 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering modeling of the product - data

Table 1: Static pull force (force vs gap) - characteristics MW 20x35 / N38

Table 2: Slippage capacity (wall) MW 20x35 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 20x35 / N38

Table 4: Steel thickness (saturation) - power losses MW 20x35 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MW 20x35 / N38

Table 6: Two magnets (attraction) - forces in the system MW 20x35 / N38

Table 7: Hazards (implants) - precautionary measures MW 20x35 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 20x35 / N38

Table 9: Surface protection spec MW 20x35 / N38

Table 10: Electrical data (Pc) MW 20x35 / N38

Table 11: Hydrostatics and buoyancy MW 20x35 / N38

1. Shear force

2. Plate thickness effect

3. Temperature resistance

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

Material specification

Sustainability

Pulling force

Magnetic Induction

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Strengths as well as weaknesses of neodymium magnets.

Strengths

Limitations

Pull force analysis

Best holding force of the magnet in ideal parameters – what affects it?

Impact of factors on magnetic holding capacity in practice

Safety rules for work with NdFeB magnets

Power loss in heat

Risk of cracking

Respect the power

Life threat

Keep away from computers

GPS Danger

Avoid contact if allergic

Product not for children

Pinching danger

Flammability

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MW 20x35 / N38

Table 2: Slippage capacity (wall)
MW 20x35 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 20x35 / N38

Table 4: Steel thickness (saturation) - power losses
MW 20x35 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MW 20x35 / N38

Table 6: Two magnets (attraction) - forces in the system
MW 20x35 / N38

Table 7: Hazards (implants) - precautionary measures
MW 20x35 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 20x35 / N38

Table 9: Surface protection spec
MW 20x35 / N38

Table 10: Electrical data (P_c)
MW 20x35 / N38

Table 11: Hydrostatics and buoyancy
MW 20x35 / N38