Product available Ships tomorrow

MW 9x3 / 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 010108

GTIN/EAN: 5906301811077

5.00

Diameter Ø

9 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

1.43 g

Magnetization Direction

↑ axial

Load capacity

1.94 kg / 18.99 N

Magnetic Induction

343.55 mT / 3436 Gs

Coating

[NiCuNi] Nickel

check properties »

1.132 ZŁ with VAT / pcs + price for transport

0.920 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

0.920 ZŁ

1.132 ZŁ

price from 700 pcs

0.865 ZŁ

1.064 ZŁ

price from 2800 pcs

0.810 ZŁ

0.996 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Call us now +48 888 99 98 98 otherwise let us know using request form the contact section.
Force and shape of a neodymium magnet can be estimated using our magnetic mass calculator.

Orders submitted before 14:00 will be dispatched today!

Product card - MW 9x3 / N38 - cylindrical magnet

Specification / characteristics - MW 9x3 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010108
GTIN/EAN	5906301811077
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	9 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	1.43 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.94 kg / 18.99 N
Magnetic Induction ~ ?	343.55 mT / 3436 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 9x3 / 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

Physical modeling of the magnet - data

These data are the result of a mathematical analysis. Results were calculated on models for the material Nd₂Fe₁₄B. Operational conditions might slightly deviate from the simulation results. Use these calculations as a reference point for designers.

Table 1: Static force (pull vs gap) - characteristics
MW 9x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3433 Gs 343.3 mT	1.94 kg / 4.28 LBS 1940.0 g / 19.0 N	weak grip
1 mm	2774 Gs 277.4 mT	1.27 kg / 2.79 LBS 1266.5 g / 12.4 N	weak grip
2 mm	2090 Gs 209.0 mT	0.72 kg / 1.59 LBS 719.2 g / 7.1 N	weak grip
3 mm	1521 Gs 152.1 mT	0.38 kg / 0.84 LBS 380.7 g / 3.7 N	weak grip
5 mm	795 Gs 79.5 mT	0.10 kg / 0.23 LBS 104.1 g / 1.0 N	weak grip
10 mm	205 Gs 20.5 mT	0.01 kg / 0.02 LBS 6.9 g / 0.1 N	weak grip
15 mm	76 Gs 7.6 mT	0.00 kg / 0.00 LBS 1.0 g / 0.0 N	weak grip
20 mm	36 Gs 3.6 mT	0.00 kg / 0.00 LBS 0.2 g / 0.0 N	weak grip
30 mm	12 Gs 1.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip
50 mm	3 Gs 0.3 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Grip strength weakens significantly with every mm of spacing. Note that every additional insulation layer (e.g., contamination, varnish, rust) strongly weakens the grip. Magnets hold most effectively in perfect adhesion; gap nullifies the force. Observe how rapidly the parameters plummet, when the magnet does not touch directly to the steel surface. When calculating the mounting, discard unnecessary gaps.

Table 2: Slippage capacity (vertical surface)
MW 9x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.39 kg / 0.86 LBS 388.0 g / 3.8 N
1 mm	Stal (~0.2)	0.25 kg / 0.56 LBS 254.0 g / 2.5 N
2 mm	Stal (~0.2)	0.14 kg / 0.32 LBS 144.0 g / 1.4 N
3 mm	Stal (~0.2)	0.08 kg / 0.17 LBS 76.0 g / 0.7 N
5 mm	Stal (~0.2)	0.02 kg / 0.04 LBS 20.0 g / 0.2 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N

The table below presents the theoretical force required to cause the shifting of the magnet downwards along a upright metal surface (considering standard friction). This parameter is a function of the distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MW 9x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.58 kg / 1.28 LBS 582.0 g / 5.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.39 kg / 0.86 LBS 388.0 g / 3.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.19 kg / 0.43 LBS 194.0 g / 1.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.97 kg / 2.14 LBS 970.0 g / 9.5 N

When hanging a magnet on a vertical plane (e.g., a fridge), it will only hold barely about 20%-30% of nominal attraction strength. Gravity and a low friction coefficient mean that holders slip easier than they pull off. Want to create a hanger? Remember that the shear force is noticeably lower than the perpendicular breakaway force. On a painted metal, the element will slide down under a significantly smaller weight. Utilizing a rubberized coating can significantly improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MW 9x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.19 kg / 0.43 LBS 194.0 g / 1.9 N
1 mm	25%	0.49 kg / 1.07 LBS 485.0 g / 4.8 N
2 mm	50%	0.97 kg / 2.14 LBS 970.0 g / 9.5 N
3 mm	75%	1.46 kg / 3.21 LBS 1455.0 g / 14.3 N
5 mm	100%	1.94 kg / 4.28 LBS 1940.0 g / 19.0 N
10 mm	100%	1.94 kg / 4.28 LBS 1940.0 g / 19.0 N
11 mm	100%	1.94 kg / 4.28 LBS 1940.0 g / 19.0 N
12 mm	100%	1.94 kg / 4.28 LBS 1940.0 g / 19.0 N

A too thin steel cannot absorb the full magnetic flux, which weakens actual performance of the holder. Should you install a neodymium to a too thin substrate, the field will penetrate right through and the pull force will drop sharply. To squeeze 100% of this magnet's power, you require a sufficiently solid piece of steel. The material oversaturation means that on thin elements (e.g., appliance housings), the product shows lower pull force. We recommend selecting the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - power drop
MW 9x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.94 kg / 4.28 LBS 1940.0 g / 19.0 N	OK
40 °C	-2.2%	1.90 kg / 4.18 LBS 1897.3 g / 18.6 N	OK
60 °C	-4.4%	1.85 kg / 4.09 LBS 1854.6 g / 18.2 N
80 °C	-6.6%	1.81 kg / 3.99 LBS 1812.0 g / 17.8 N
100 °C	-28.8%	1.38 kg / 3.05 LBS 1381.3 g / 13.6 N

Ordinary NdFeB products irreversibly lose power above the temperature limit. Avoid high temperatures – high temperature can irreversibly demagnetize this magnet. As the temperature rises, the magnet's capacity temporarily drops. Avoid using this product near heat sources higher than its working range. Exceeding the critical threshold 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 (pancake types) may lose charge permanently at lower temperatures than taller cylinders. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 9x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.62 kg / 10.19 LBS 4 949 Gs	0.69 kg / 1.53 LBS 693 g / 6.8 N	N/A
1 mm	3.82 kg / 8.43 LBS 6 244 Gs	0.57 kg / 1.26 LBS 573 g / 5.6 N	3.44 kg / 7.58 LBS ~0 Gs
2 mm	3.02 kg / 6.65 LBS 5 548 Gs	0.45 kg / 1.00 LBS 453 g / 4.4 N	2.72 kg / 5.99 LBS ~0 Gs
3 mm	2.30 kg / 5.08 LBS 4 847 Gs	0.35 kg / 0.76 LBS 346 g / 3.4 N	2.07 kg / 4.57 LBS ~0 Gs
5 mm	1.25 kg / 2.76 LBS 3 575 Gs	0.19 kg / 0.41 LBS 188 g / 1.8 N	1.13 kg / 2.49 LBS ~0 Gs
10 mm	0.25 kg / 0.55 LBS 1 591 Gs	0.04 kg / 0.08 LBS 37 g / 0.4 N	0.22 kg / 0.49 LBS ~0 Gs
20 mm	0.02 kg / 0.04 LBS 410 Gs	0.00 kg / 0.01 LBS 2 g / 0.0 N	0.01 kg / 0.03 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 39 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
60 mm	0.00 kg / 0.00 LBS 23 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
70 mm	0.00 kg / 0.00 LBS 15 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
80 mm	0.00 kg / 0.00 LBS 10 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
90 mm	0.00 kg / 0.00 LBS 7 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
100 mm	0.00 kg / 0.00 LBS 5 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums attract each other from a wider radius than a magnet and sheet setup. The connection of magnet-to-magnet generates a stronger field and a wider radius of performance. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is extreme. The repulsion force is marginally weaker than the attraction, but still large.
*Flux density for N-N configuration is approximately ~0 Gs at the midpoint of the gap (caused by magnetic field nullification).
* Calculations apply to shear force of two same magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 9x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.5 cm
Hearing aid	10 Gs (1.0 mT)	3.5 cm
Mechanical watch	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Extremely neodym field is a serious hazard to electronics as well as medical implants. These NdFeB products generate a flux that disrupts operation of sensitive medical devices. Be aware: the invisible magnetic field penetrates the body and housings. Increased vigilance must be taken by people with cochlear implants and drug dispensers. Also at risk are: automatic timepieces, remotes, speakers, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MW 9x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	37.23 km/h (10.34 m/s)	0.08 J
30 mm	64.34 km/h (17.87 m/s)	0.23 J
50 mm	83.06 km/h (23.07 m/s)	0.38 J
100 mm	117.47 km/h (32.63 m/s)	0.76 J

NdFeB products are delicate – a strong collision with metal risks their cracking. Watch the impact speed – a magnet released freely becomes dangerous. Kinetic force can cause material chips or painful pinches to fingers. Be sure to control the product during installation so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h almost guarantees destruction of the magnet. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MW 9x3 / 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. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
MW 9x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	2 314 Mx	23.1 µWb
P_c Coefficient	0.44	Low (Flat)

Flux value emitted by the pole surface. Essential parameter for generator designers and motors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MW 9x3 / N38

Environment	Effective steel pull	Effect
Air (land)	1.94 kg	Standard
Water (riverbed)	2.22 kg (+0.28 kg buoyancy gain)	+14.5%

Rust risk: 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. Buoyancy helps in lifting finds.

1. Sliding resistance

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

2. Steel saturation

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

3. Temperature resistance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.44

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

Chemical composition

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%

Ecology and recycling (GPSR)

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: 010108-2026

Quick Unit Converter

Magnet pull force

Force in kg

Newtons (N)

lbs

Magnetic Field

Gauss (Gs)

Input data into a field, and the remaining fields convert instantly.

View also proposals

Product available Ships tomorrow

BM 700x180x75 [8xM10] - magnetic beam

6150.00 ZŁ brutto / pcs

Product available Ships tomorrow

SM 18x225 [2xM5] / N42 - magnetic separator

498.15 ZŁ brutto / pcs

Product available Ships tomorrow

SM 32x375 [2xM8] / N42 - magnetic separator

1119.30 ZŁ brutto / pcs

Product available Ships tomorrow

MW 8x20 / N38 - cylindrical magnet

4.60 ZŁ brutto / pcs

The offered product is a very strong cylindrical magnet, made from advanced NdFeB material, which, with dimensions of Ø9x3 mm, guarantees the highest energy density. The MW 9x3 / N38 model is characterized by high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 1.94 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building electric motors, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the high power of 18.99 N with a weight of only 1.43 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.

Due to the brittleness of the NdFeB material, 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, 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 professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø9x3), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our warehouse.

The presented product is a neodymium magnet with precisely defined parameters: diameter 9 mm and height 3 mm. The key parameter here is the lifting capacity amounting to approximately 1.94 kg (force ~18.99 N), which, with such defined dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface 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 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.

Advantages and disadvantages of rare earth magnets.

Benefits

Besides their exceptional pulling force, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
They are noted for resistance to demagnetization induced by external disturbances,
Thanks to the shiny finish, the coating of nickel, gold-plated, or silver gives an visually attractive appearance,
They are known for high magnetic induction at the operating surface, making them more effective,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Considering the possibility of precise shaping and adaptation to individualized solutions, neodymium magnets can be produced in a broad palette of forms and dimensions, which makes them more universal,
Significant place in innovative solutions – they are commonly used in mass storage devices, electric motors, medical devices, and other advanced devices.
Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of neodymium magnets:

At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength 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
When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
Due to limitations in realizing threads and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. It is also worth noting that small components of these devices can disrupt the diagnostic process medical after entering the body.
Due to neodymium price, their price is relatively high,

Lifting parameters

Highest magnetic holding force – what affects it?

Breakaway force was defined for ideal contact conditions, assuming:

using a sheet made of mild steel, acting as a circuit closing element
whose transverse dimension equals approx. 10 mm
with a surface cleaned and smooth
with total lack of distance (no coatings)
for force acting at a right angle (in the magnet axis)
at room temperature

Determinants of lifting force in real conditions

In practice, the actual lifting capacity results from a number of factors, ranked from the most important:

Space between surfaces – every millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Direction of force – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly many times smaller (approx. 1/5 of the lifting capacity).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Material composition – not every steel attracts identically. High carbon content worsen the attraction effect.
Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Caution required

Handle magnets with awareness. Their powerful strength can shock even professionals. Stay alert and do not underestimate their force.

Magnetic interference

Remember: neodymium magnets produce a field that disrupts precision electronics. Maintain a separation from your mobile, tablet, and navigation systems.

Operating temperature

Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Adults only

Absolutely keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are life-threatening.

Magnetic media

Do not bring magnets close to a wallet, laptop, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Life threat

Individuals with a ICD have to keep an absolute distance from magnets. The magnetism can interfere with the operation of the life-saving device.

Do not drill into magnets

Combustion risk: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.

Bodily injuries

Danger of trauma: The pulling power is so great that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Skin irritation risks

Studies show that the nickel plating (standard magnet coating) is a common allergen. If you have an allergy, avoid direct skin contact and opt for encased magnets.

Protective goggles

Despite the nickel coating, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?

MW 9x3 / N38 - cylindrical magnet

Product card - MW 9x3 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the magnet - data

Table 1: Static force (pull vs gap) - characteristics MW 9x3 / N38

Table 2: Slippage capacity (vertical surface) MW 9x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MW 9x3 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 9x3 / N38

Table 5: Working in heat (material behavior) - power drop MW 9x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 9x3 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures MW 9x3 / N38

Table 8: Collisions (kinetic energy) - warning MW 9x3 / N38

Table 9: Surface protection spec MW 9x3 / N38

Table 10: Electrical data (Pc) MW 9x3 / N38

Table 11: Underwater work (magnet fishing) MW 9x3 / N38

1. Sliding resistance

2. Steel saturation

3. Temperature resistance

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

Chemical composition

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

View also proposals

BM 700x180x75 [8xM10] - magnetic beam

SM 18x225 [2xM5] / N42 - magnetic separator

SM 32x375 [2xM8] / N42 - magnetic separator

MW 8x20 / N38 - cylindrical magnet

Advantages and disadvantages of rare earth magnets.

Benefits

Weaknesses

Lifting parameters

Highest magnetic holding force – what affects it?

Determinants of lifting force in real conditions

Safety rules for work with neodymium magnets

Caution required

Magnetic interference

Operating temperature

Adults only

Magnetic media

Life threat

Do not drill into magnets

Bodily injuries

Skin irritation risks

Protective goggles

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MW 9x3 / N38

Table 2: Slippage capacity (vertical surface)
MW 9x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MW 9x3 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 9x3 / N38

Table 5: Working in heat (material behavior) - power drop
MW 9x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 9x3 / N38

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 9x3 / N38

Table 8: Collisions (kinetic energy) - warning
MW 9x3 / N38

Table 9: Surface protection spec
MW 9x3 / N38

Table 10: Electrical data (P_c)
MW 9x3 / N38

Table 11: Underwater work (magnet fishing)
MW 9x3 / N38