Product on order Ships in 3-5 days

MW 21.9x10 / N38 - cylindrical magnet

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

cylindrical magnet

Catalog no 010045

GTIN/EAN: 5906301810445

Diameter Ø

21.9 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

28.25 g

Magnetization Direction

→ diametrical

Load capacity

14.65 kg / 143.71 N

Magnetic Induction

417.89 mT / 4179 Gs

Coating

[NiCuNi] Nickel

see technical specifications »

15.50 ZŁ with VAT / pcs + price for transport

12.60 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

12.60 ZŁ

15.50 ZŁ

price from 50 pcs

11.84 ZŁ

14.57 ZŁ

price from 200 pcs

11.09 ZŁ

13.64 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Not sure about your choice?

Contact us by phone +48 22 499 98 98 alternatively drop us a message using form our website.
Parameters as well as structure of magnets can be estimated on our magnetic mass calculator.

Orders submitted before 14:00 will be dispatched today!

Technical - MW 21.9x10 / N38 - cylindrical magnet

Specification / characteristics - MW 21.9x10 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010045
GTIN/EAN	5906301810445
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	21.9 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	28.25 g
Magnetization Direction	→ diametrical
Load capacity ~ ?	14.65 kg / 143.71 N
Magnetic Induction ~ ?	417.89 mT / 4179 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 21.9x10 / N38 - cylindrical magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical simulation of the assembly - report

The following information constitute the outcome of a engineering simulation. Values are based on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Please consider these data as a supplementary guide during assembly planning.

Table 1: Static pull force (force vs distance) - interaction chart
MW 21.9x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4178 Gs 417.8 mT	14.65 kg / 32.30 LBS 14650.0 g / 143.7 N	critical level
1 mm	3830 Gs 383.0 mT	12.31 kg / 27.15 LBS 12314.7 g / 120.8 N	critical level
2 mm	3466 Gs 346.6 mT	10.08 kg / 22.23 LBS 10083.5 g / 98.9 N	critical level
3 mm	3104 Gs 310.4 mT	8.09 kg / 17.83 LBS 8086.3 g / 79.3 N	warning
5 mm	2432 Gs 243.2 mT	4.97 kg / 10.95 LBS 4966.5 g / 48.7 N	warning
10 mm	1257 Gs 125.7 mT	1.33 kg / 2.93 LBS 1327.0 g / 13.0 N	low risk
15 mm	671 Gs 67.1 mT	0.38 kg / 0.83 LBS 378.5 g / 3.7 N	low risk
20 mm	386 Gs 38.6 mT	0.13 kg / 0.28 LBS 125.0 g / 1.2 N	low risk
30 mm	156 Gs 15.6 mT	0.02 kg / 0.04 LBS 20.4 g / 0.2 N	low risk
50 mm	43 Gs 4.3 mT	0.00 kg / 0.00 LBS 1.5 g / 0.0 N	low risk

Magnetic force decreases significantly with every subsequent millimeter of gap. Remember that every additional insulation layer (e.g., contamination, varnish, rust) significantly reduces the pull force. Magnets hold strongest in perfect adhesion; distance nullifies the power. Observe how rapidly the load capacity drop, when the product does not touch directly to the metal substrate. When planning the assembly, eliminate unnecessary gaps.

Table 2: Vertical load (vertical surface)
MW 21.9x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	2.93 kg / 6.46 LBS 2930.0 g / 28.7 N
1 mm	Stal (~0.2)	2.46 kg / 5.43 LBS 2462.0 g / 24.2 N
2 mm	Stal (~0.2)	2.02 kg / 4.44 LBS 2016.0 g / 19.8 N
3 mm	Stal (~0.2)	1.62 kg / 3.57 LBS 1618.0 g / 15.9 N
5 mm	Stal (~0.2)	0.99 kg / 2.19 LBS 994.0 g / 9.8 N
10 mm	Stal (~0.2)	0.27 kg / 0.59 LBS 266.0 g / 2.6 N
15 mm	Stal (~0.2)	0.08 kg / 0.17 LBS 76.0 g / 0.7 N
20 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 26.0 g / 0.3 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

This section presents the theoretical holding capacity required to cause the downward movement of the magnet downwards along a upright metal surface (considering typical friction coefficient). This parameter depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 21.9x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	4.40 kg / 9.69 LBS 4395.0 g / 43.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	2.93 kg / 6.46 LBS 2930.0 g / 28.7 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	1.47 kg / 3.23 LBS 1465.0 g / 14.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	7.33 kg / 16.15 LBS 7325.0 g / 71.9 N

When hanging a holder on a upright plane (e.g., a car body), it will only hold only approx. 1/5 of its maximum pull force. Gravitational force and a weak degree of grip influence the fact that magnets slide down faster than they pull off. Want to create a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull 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 (substrate influence) - sheet metal selection
MW 21.9x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	0.73 kg / 1.61 LBS 732.5 g / 7.2 N
1 mm	13%	1.83 kg / 4.04 LBS 1831.3 g / 18.0 N
2 mm	25%	3.66 kg / 8.07 LBS 3662.5 g / 35.9 N
3 mm	38%	5.49 kg / 12.11 LBS 5493.8 g / 53.9 N
5 mm	63%	9.16 kg / 20.19 LBS 9156.3 g / 89.8 N
10 mm	100%	14.65 kg / 32.30 LBS 14650.0 g / 143.7 N
11 mm	100%	14.65 kg / 32.30 LBS 14650.0 g / 143.7 N
12 mm	100%	14.65 kg / 32.30 LBS 14650.0 g / 143.7 N

A thin metal plate cannot take in the full magnetic flux, which squanders power of the magnet. If you mount a strong magnet to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To achieve the maximum of this magnet's potential, you need a suitably thick piece of steel. The saturation phenomenon causes that on delicate walls (e.g., car bodies), the holder works worse. We suggest choosing the steel cross-section based on the following data.

Table 5: Thermal stability (stability) - thermal limit
MW 21.9x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	14.65 kg / 32.30 LBS 14650.0 g / 143.7 N	OK
40 °C	-2.2%	14.33 kg / 31.59 LBS 14327.7 g / 140.6 N	OK
60 °C	-4.4%	14.01 kg / 30.88 LBS 14005.4 g / 137.4 N
80 °C	-6.6%	13.68 kg / 30.17 LBS 13683.1 g / 134.2 N
100 °C	-28.8%	10.43 kg / 23.00 LBS 10430.8 g / 102.3 N

Standard neodymium magnets change their properties parameters past the thermal threshold. Watch out for overheating – excessive heat can irreversibly destroy this product. With every degree above norm, the neodymium's force briefly lowers. Avoid using this magnet near heat sources higher than its working range. Too high temperature will lead to permanent loss of magnetic properties.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) may lose charge permanently under lower heat stress compared to rod magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 21.9x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	40.53 kg / 89.35 LBS 5 433 Gs	6.08 kg / 13.40 LBS 6079 g / 59.6 N	N/A
1 mm	37.31 kg / 82.26 LBS 8 017 Gs	5.60 kg / 12.34 LBS 5597 g / 54.9 N	33.58 kg / 74.03 LBS ~0 Gs
2 mm	34.07 kg / 75.11 LBS 7 660 Gs	5.11 kg / 11.27 LBS 5110 g / 50.1 N	30.66 kg / 67.60 LBS ~0 Gs
3 mm	30.92 kg / 68.16 LBS 7 297 Gs	4.64 kg / 10.22 LBS 4637 g / 45.5 N	27.82 kg / 61.34 LBS ~0 Gs
5 mm	25.04 kg / 55.20 LBS 6 567 Gs	3.76 kg / 8.28 LBS 3756 g / 36.8 N	22.54 kg / 49.68 LBS ~0 Gs
10 mm	13.74 kg / 30.29 LBS 4 865 Gs	2.06 kg / 4.54 LBS 2061 g / 20.2 N	12.37 kg / 27.26 LBS ~0 Gs
20 mm	3.67 kg / 8.09 LBS 2 515 Gs	0.55 kg / 1.21 LBS 551 g / 5.4 N	3.30 kg / 7.28 LBS ~0 Gs
50 mm	0.13 kg / 0.29 LBS 476 Gs	0.02 kg / 0.04 LBS 20 g / 0.2 N	0.12 kg / 0.26 LBS ~0 Gs
60 mm	0.06 kg / 0.12 LBS 312 Gs	0.01 kg / 0.02 LBS 8 g / 0.1 N	0.05 kg / 0.11 LBS ~0 Gs
70 mm	0.03 kg / 0.06 LBS 214 Gs	0.00 kg / 0.01 LBS 4 g / 0.0 N	0.02 kg / 0.05 LBS ~0 Gs
80 mm	0.01 kg / 0.03 LBS 153 Gs	0.00 kg / 0.00 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs
90 mm	0.01 kg / 0.02 LBS 113 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.01 LBS 86 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products interact from a wider radius than a neodymium and metal setup. The setup of two magnets creates a more powerful interaction and a further horizon of performance. Designing a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the impact force is huge. The repulsion force is a bit weaker than the connection force, but still impressive.
*Flux density in repulsion mode reaches ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Important: Calculations demonstrate sliding force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 21.9x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	11.0 cm
Hearing aid	10 Gs (1.0 mT)	9.0 cm
Mechanical watch	20 Gs (2.0 mT)	7.0 cm
Mobile device	40 Gs (4.0 mT)	5.5 cm
Remote	50 Gs (5.0 mT)	5.0 cm
Payment card	400 Gs (40.0 mT)	2.0 cm
HDD hard drive	600 Gs (60.0 mT)	2.0 cm

Powerful magnet radiation is a serious hazard to electronic devices and pacemakers. These magnets generate a field that disrupts operation of digital equipment. Notice: the unseen radiation passes through tissues and plastic. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. Influence will be felt by: mechanical watches, remotes, speakers, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MW 21.9x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.23 km/h (6.73 m/s)	0.64 J
30 mm	39.81 km/h (11.06 m/s)	1.73 J
50 mm	51.36 km/h (14.27 m/s)	2.87 J
100 mm	72.63 km/h (20.17 m/s)	5.75 J

NdFeB products are very brittle – a collision with steel risks their cracking. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or painful pinches to fingers. Always hold the magnet during bringing near metal so it doesn't hit violently against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Use safety goggles when handling with powerful specimens.

Table 9: Corrosion resistance
MW 21.9x10 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MW 21.9x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	16 059 Mx	160.6 µWb
P_c Coefficient	0.55	Low (Flat)

Total magnetic flux emitted by the pole surface. Key data when building generators and motors. P_c value defines the magnet's operating point.

Table 11: Submerged application
MW 21.9x10 / N38

Environment	Effective steel pull	Effect
Air (land)	14.65 kg	Standard
Water (riverbed)	16.77 kg (+2.12 kg buoyancy gain)	+14.5%

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

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

1. Shear force

*Note: On a vertical surface, the magnet retains merely ~20% of its max power.

2. Steel saturation

*Thin steel (e.g. 0.5mm PC case) drastically limits the holding force.

3. Heat tolerance

*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) = 0.55

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 specification and ecology

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: 010045-2026

Measurement Calculator

Pulling force

Force in kg

Newtons (N)

Force in lbs

Magnetic Induction

Induction (T)

Just complete any input, and the tool calculate everything else instantly.

Other deals

Product on order Ships in 3-5 days

MW 29x10 / N38 - cylindrical magnet

17.34 ZŁ brutto / pcs

Product on order Ships in 3-5 days

UMGZ 60x30x15 [M10] GZ / N38 - magnetic holder external thread

102.95 ZŁ brutto / pcs

Product on order Ships in 3-5 days

MP 60x20x5 / N38 - ring magnet

47.99 ZŁ brutto / pcs

Product on order Ships in 3-5 days

MW 15x3 / N38 - cylindrical magnet

1.624 ZŁ brutto / pcs

The presented product is a very strong rod magnet, manufactured from durable NdFeB material, which, at dimensions of Ø21.9x10 mm, guarantees the highest energy density. The MW 21.9x10 / N38 model features high dimensional repeatability and professional build quality, making it an excellent solution for the most demanding engineers and designers. As a cylindrical magnet with impressive force (approx. 14.65 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 143.71 N with a weight of only 28.25 g, this rod is indispensable in electronics and wherever every gram matters.

Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks chipping the coating of this precision component. To ensure stability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø21.9x10), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 21.9 mm and height 10 mm. The key parameter here is the lifting capacity amounting to approximately 14.65 kg (force ~143.71 N), which, with such compact dimensions, proves the high grade of the NdFeB material. 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 21.9 mm. Such an arrangement is most desirable 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 through the diameter if your project requires it.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Advantages

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They retain attractive force for almost 10 years – the loss is just ~1% (according to analyses),
Magnets effectively protect themselves against demagnetization caused by foreign field sources,
A magnet with a metallic nickel surface has better aesthetics,
Magnetic induction on the surface of the magnet turns out to be impressive,
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...
Possibility of custom forming as well as adapting to complex requirements,
Huge importance in advanced technology sectors – they serve a role in mass storage devices, electric drive systems, precision medical tools, also other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in small systems

Disadvantages

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its 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.
They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited possibility of producing nuts in the magnet and complicated forms - recommended is casing - magnet mounting.
Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these products can complicate diagnosis medical after entering the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum magnetic pulling force – what it depends on?

Information about lifting capacity was defined for ideal contact conditions, including:

on a block made of structural steel, optimally conducting the magnetic field
possessing a thickness of minimum 10 mm to ensure full flux closure
characterized by lack of roughness
with zero gap (no paint)
under perpendicular force vector (90-degree angle)
in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity impacted by specific conditions, including (from most important):

Distance (betwixt the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
Steel thickness – insufficiently thick plate does not accept the full field, causing part of the power to be lost into the air.
Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with neodymium magnets

Material brittleness

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

Health Danger

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.

Machining danger

Dust produced during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Choking Hazard

Product intended for adults. Tiny parts pose a choking risk, leading to serious injuries. Store away from children and animals.

Data carriers

Device Safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).

Warning for allergy sufferers

A percentage of the population suffer from a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Frequent touching can result in skin redness. We suggest wear protective gloves.

Crushing risk

Danger of trauma: The attraction force is so immense that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.

Handling rules

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

Compass and GPS

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

Demagnetization risk

Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.

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

MW 21.9x10 / N38 - cylindrical magnet

Technical - MW 21.9x10 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the assembly - report

Table 1: Static pull force (force vs distance) - interaction chart MW 21.9x10 / N38

Table 2: Vertical load (vertical surface) MW 21.9x10 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 21.9x10 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection MW 21.9x10 / N38

Table 5: Thermal stability (stability) - thermal limit MW 21.9x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MW 21.9x10 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 21.9x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects MW 21.9x10 / N38

Table 9: Corrosion resistance MW 21.9x10 / N38

Table 10: Electrical data (Pc) MW 21.9x10 / N38

Table 11: Submerged application MW 21.9x10 / N38

1. Shear force

2. Steel saturation

3. Heat tolerance

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

Elemental analysis

Environmental data

Pulling force

Magnetic Induction

Other deals

MW 29x10 / N38 - cylindrical magnet

UMGZ 60x30x15 [M10] GZ / N38 - magnetic holder external thread

MP 60x20x5 / N38 - ring magnet

MW 15x3 / N38 - cylindrical magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Disadvantages

Lifting parameters

Maximum magnetic pulling force – what it depends on?

Impact of factors on magnetic holding capacity in practice

Precautions when working with neodymium magnets

Material brittleness

Health Danger

Machining danger

Choking Hazard

Data carriers

Warning for allergy sufferers

Crushing risk

Handling rules

Compass and GPS

Demagnetization risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs distance) - interaction chart
MW 21.9x10 / N38

Table 2: Vertical load (vertical surface)
MW 21.9x10 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 21.9x10 / N38

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 21.9x10 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 21.9x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MW 21.9x10 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 21.9x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MW 21.9x10 / N38

Table 9: Corrosion resistance
MW 21.9x10 / N38

Table 10: Electrical data (P_c)
MW 21.9x10 / N38

Table 11: Submerged application
MW 21.9x10 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.