Product available Ships tomorrow

MW 12x3 / 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 010018

GTIN/EAN: 5906301810179

5.00

Diameter Ø

12 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

2.54 g

Magnetization Direction

↑ axial

Load capacity

2.49 kg / 24.43 N

Magnetic Induction

277.09 mT / 2771 Gs

Coating

[NiCuNi] Nickel

view properties »

1.648 ZŁ with VAT / pcs + price for transport

1.340 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

1.340 ZŁ

1.648 ZŁ

price from 450 pcs

1.260 ZŁ

1.549 ZŁ

price from 1900 pcs

1.179 ZŁ

1.450 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Call us +48 22 499 98 98 if you prefer send us a note using request form our website.
Specifications along with form of neodymium magnets can be analyzed on our magnetic mass calculator.

Orders submitted before 14:00 will be dispatched today!

Product card - MW 12x3 / N38 - cylindrical magnet

Specification / characteristics - MW 12x3 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010018
GTIN/EAN	5906301810179
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	12 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	2.54 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.49 kg / 24.43 N
Magnetic Induction ~ ?	277.09 mT / 2771 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 12x3 / 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 product - data

The following values are the outcome of a physical analysis. Values are based on models for the material Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Use these data as a supplementary guide during assembly planning.

Table 1: Static pull force (pull vs distance) - characteristics
MW 12x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2770 Gs 277.0 mT	2.49 kg / 5.49 LBS 2490.0 g / 24.4 N	warning
1 mm	2420 Gs 242.0 mT	1.90 kg / 4.19 LBS 1900.6 g / 18.6 N	weak grip
2 mm	2009 Gs 200.9 mT	1.31 kg / 2.89 LBS 1309.4 g / 12.8 N	weak grip
3 mm	1611 Gs 161.1 mT	0.84 kg / 1.86 LBS 842.7 g / 8.3 N	weak grip
5 mm	991 Gs 99.1 mT	0.32 kg / 0.70 LBS 318.7 g / 3.1 N	weak grip
10 mm	313 Gs 31.3 mT	0.03 kg / 0.07 LBS 31.8 g / 0.3 N	weak grip
15 mm	125 Gs 12.5 mT	0.01 kg / 0.01 LBS 5.1 g / 0.0 N	weak grip
20 mm	61 Gs 6.1 mT	0.00 kg / 0.00 LBS 1.2 g / 0.0 N	weak grip
30 mm	20 Gs 2.0 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	weak grip

Pulling power drops drastically with every mm of spacing. Remember that even a very thin break (e.g., contamination, paint, veneer) noticeably diminishes the holding power. Magnetic products operate optimally in perfect adhesion; distance drastically cuts the power. Notice how rapidly the load capacity drop, when the product does not touch flatly to the metal substrate. When calculating the arrangement, avoid additional spacers.

Table 2: Sliding hold (wall)
MW 12x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.50 kg / 1.10 LBS 498.0 g / 4.9 N
1 mm	Stal (~0.2)	0.38 kg / 0.84 LBS 380.0 g / 3.7 N
2 mm	Stal (~0.2)	0.26 kg / 0.58 LBS 262.0 g / 2.6 N
3 mm	Stal (~0.2)	0.17 kg / 0.37 LBS 168.0 g / 1.6 N
5 mm	Stal (~0.2)	0.06 kg / 0.14 LBS 64.0 g / 0.6 N
10 mm	Stal (~0.2)	0.01 kg / 0.01 LBS 6.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 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 calculates the estimated shear load sufficient to cause the slippage of the magnet vertically against a upright metal surface (assuming standard friction). This value varies with the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 12x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.75 kg / 1.65 LBS 747.0 g / 7.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.50 kg / 1.10 LBS 498.0 g / 4.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.25 kg / 0.55 LBS 249.0 g / 2.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.25 kg / 2.74 LBS 1245.0 g / 12.2 N

When hanging a element on a vertical surface (e.g., a board), it will only hold just approx. 1/5 of its nominal power. Gravity as well as a weak degree of grip influence the fact that products move down easier than they pull off. Planning a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will slide down under a much lighter load. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (saturation) - power losses
MW 12x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.25 kg / 0.55 LBS 249.0 g / 2.4 N
1 mm	25%	0.62 kg / 1.37 LBS 622.5 g / 6.1 N
2 mm	50%	1.25 kg / 2.74 LBS 1245.0 g / 12.2 N
3 mm	75%	1.87 kg / 4.12 LBS 1867.5 g / 18.3 N
5 mm	100%	2.49 kg / 5.49 LBS 2490.0 g / 24.4 N
10 mm	100%	2.49 kg / 5.49 LBS 2490.0 g / 24.4 N
11 mm	100%	2.49 kg / 5.49 LBS 2490.0 g / 24.4 N
12 mm	100%	2.49 kg / 5.49 LBS 2490.0 g / 24.4 N

A thin metal plate cannot conduct the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a too thin substrate, the magnetism will pass right through and the pull force will drop sharply. To utilize the maximum of this neodymium's potential, you need a suitably thick backing of metal. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the holder shows lower pull force. We advise picking the steel thickness based on the following data.

Table 5: Thermal resistance (stability) - resistance threshold
MW 12x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.49 kg / 5.49 LBS 2490.0 g / 24.4 N	OK
40 °C	-2.2%	2.44 kg / 5.37 LBS 2435.2 g / 23.9 N	OK
60 °C	-4.4%	2.38 kg / 5.25 LBS 2380.4 g / 23.4 N
80 °C	-6.6%	2.33 kg / 5.13 LBS 2325.7 g / 22.8 N
100 °C	-28.8%	1.77 kg / 3.91 LBS 1772.9 g / 17.4 N

Ordinary NdFeB products lose strength past the thermal threshold. Watch out for overheating – excessive heat can permanently destroy this magnet. With increasing heat, the neodymium's force momentarily decreases. Refrain from using this magnet close to heaters higher than its operating temperature limit. Too high temperature will cause permanent loss of magnetism.

*Important note: Temperature resistance depends not only on the material grade, but also on the magnet's shape. Flat magnets (pancake types) risk losing magnetic properties at lower temperatures compared to rod magnets. The danger warning in the table signals a risk of irreversible loss for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 12x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	5.35 kg / 11.79 LBS 4 377 Gs	0.80 kg / 1.77 LBS 802 g / 7.9 N	N/A
1 mm	4.75 kg / 10.46 LBS 5 218 Gs	0.71 kg / 1.57 LBS 712 g / 7.0 N	4.27 kg / 9.42 LBS ~0 Gs
2 mm	4.08 kg / 9.00 LBS 4 840 Gs	0.61 kg / 1.35 LBS 612 g / 6.0 N	3.67 kg / 8.10 LBS ~0 Gs
3 mm	3.42 kg / 7.55 LBS 4 433 Gs	0.51 kg / 1.13 LBS 514 g / 5.0 N	3.08 kg / 6.80 LBS ~0 Gs
5 mm	2.27 kg / 5.01 LBS 3 610 Gs	0.34 kg / 0.75 LBS 341 g / 3.3 N	2.04 kg / 4.51 LBS ~0 Gs
10 mm	0.68 kg / 1.51 LBS 1 982 Gs	0.10 kg / 0.23 LBS 103 g / 1.0 N	0.62 kg / 1.36 LBS ~0 Gs
20 mm	0.07 kg / 0.15 LBS 626 Gs	0.01 kg / 0.02 LBS 10 g / 0.1 N	0.06 kg / 0.14 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 67 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 41 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 27 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 18 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 13 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 10 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums interact from a significantly greater distance than a magnet and steel combination. The setup of magnet-to-magnet generates a stronger field and a larger range of operation. Planning to create a strong closure? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is extreme. The levitation is marginally weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
* Calculations refer to shear force of dual matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MW 12x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	5.0 cm
Hearing aid	10 Gs (1.0 mT)	4.0 cm
Mechanical watch	20 Gs (2.0 mT)	3.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.5 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 large risk to electronic devices as well as medical implants. These NdFeB products produce a field that destroys function of sensitive medical devices. Be aware: the unseen radiation acts through matter and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: mechanical watches, car keys, speakers, and displays. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - collision effects
MW 12x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	31.83 km/h (8.84 m/s)	0.10 J
30 mm	54.69 km/h (15.19 m/s)	0.29 J
50 mm	70.61 km/h (19.61 m/s)	0.49 J
100 mm	99.85 km/h (27.74 m/s)	0.98 J

Magnetic elements are very brittle – a collision with steel risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Impact energy can destroy the magnet or dangerous crushing to skin. Be sure to control the product during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear eye protection when handling with powerful specimens.

Table 9: Surface protection spec
MW 12x3 / 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 following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MW 12x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	3 483 Mx	34.8 µWb
P_c Coefficient	0.35	Low (Flat)

Flux value passing through the pole surface. Essential parameter for generator designers and motors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
MW 12x3 / N38

Environment	Effective steel pull	Effect
Air (land)	2.49 kg	Standard
Water (riverbed)	2.85 kg (+0.36 kg buoyancy gain)	+14.5%

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

The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Wall mount (shear)

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

2. Efficiency vs thickness

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

3. Heat tolerance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.35

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

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Environmental data

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 010018-2026

Measurement Calculator

Pulling force

Newtons (N)

lbs

Field Strength

Induction (Gs)

Induction (T)

Just fill in a single box, to let the converter fill in the rest automatically.

Other products

Product available Ships tomorrow

MW 10x5 / N38 - cylindrical magnet

1.513 ZŁ brutto / pcs

Product available Ships tomorrow

SMZR 25x225 / N52 - magnetic separator with handle

615.00 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 50x50x10 / N38 - lamellar magnet

42.88 ZŁ brutto / pcs

Product available Ships tomorrow

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

1279.20 ZŁ brutto / pcs

The offered product is a very strong cylinder magnet, composed of durable NdFeB material, which, with dimensions of Ø12x3 mm, guarantees the highest energy density. This specific item is characterized by an accuracy of ±0.1mm and professional build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 2.49 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating shields it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.

It successfully proves itself in modeling, advanced automation, and broadly understood industry, serving as a fastening or actuating element. Thanks to the pull force of 24.43 N with a weight of only 2.54 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., 12.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which do not react with the nickel coating 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 (Ø12x3), 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 Ø12x3 mm, which, at a weight of 2.54 g, makes it an element with high magnetic energy density. The key parameter here is the lifting capacity amounting to approximately 2.49 kg (force ~24.43 N), which, with such compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 12 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 diametrically if your project requires it.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
They have excellent resistance to magnetism drop when exposed to opposing magnetic fields,
By covering with a lustrous coating of silver, the element acquires an proper look,
They are known for high magnetic induction at the operating surface, making them more effective,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
Possibility of accurate modeling and adjusting to concrete conditions,
Key role in advanced technology sectors – they are utilized in HDD drives, drive modules, precision medical tools, as well as other advanced devices.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Limitations

Cons of neodymium magnets and proposals for their use:

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and 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 start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
We recommend a housing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated forms.
Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that tiny parts of these magnets are able to complicate diagnosis medical after entering the body.
With budget limitations the cost of neodymium magnets is a challenge,

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

The specified lifting capacity represents the peak performance, measured under laboratory conditions, specifically:

with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
with a cross-section of at least 10 mm
characterized by smoothness
without the slightest air gap between the magnet and steel
for force acting at a right angle (pull-off, not shear)
in stable room temperature

What influences lifting capacity in practice

In real-world applications, the actual holding force results from a number of factors, ranked from the most important:

Air gap (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, corrosion or dirt).
Angle of force application – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
Base massiveness – too thin plate causes magnetic saturation, causing part of the flux to be escaped into the air.
Material type – ideal substrate is high-permeability steel. Cast iron may generate lower lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which improves force. Uneven metal weaken the grip.
Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was assessed by applying a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Precautions when working with neodymium magnets

Danger to the youngest

Adult use only. Small elements can be swallowed, causing intestinal necrosis. Store away from kids and pets.

Dust explosion hazard

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Physical harm

Risk of injury: The attraction force is so immense that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Phone sensors

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

Maximum temperature

Avoid heat. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, ask us about HT versions (H, SH, UH).

Allergic reactions

A percentage of the population have a contact allergy to nickel, which is the common plating for NdFeB magnets. Prolonged contact can result in dermatitis. We strongly advise wear safety gloves.

Respect the power

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Warning for heart patients

Warning for patients: Powerful magnets affect medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.

Data carriers

Do not bring magnets near a purse, laptop, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.

Fragile material

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. We recommend safety glasses.

Caution! More info about hazards in the article: Magnet Safety Guide.

MW 12x3 / N38 - cylindrical magnet

Product card - MW 12x3 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - data

Table 1: Static pull force (pull vs distance) - characteristics MW 12x3 / N38

Table 2: Sliding hold (wall) MW 12x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MW 12x3 / N38

Table 4: Steel thickness (saturation) - power losses MW 12x3 / N38

Table 5: Thermal resistance (stability) - resistance threshold MW 12x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MW 12x3 / N38

Table 7: Hazards (electronics) - precautionary measures MW 12x3 / N38

Table 8: Impact energy (kinetic energy) - collision effects MW 12x3 / N38

Table 9: Surface protection spec MW 12x3 / N38

Table 10: Construction data (Pc) MW 12x3 / N38

Table 11: Physics of underwater searching MW 12x3 / N38

1. Wall mount (shear)

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Environmental data

Pulling force

Field Strength

Other products

MW 10x5 / N38 - cylindrical magnet

SMZR 25x225 / N52 - magnetic separator with handle

MPL 50x50x10 / N38 - lamellar magnet

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

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Maximum magnetic pulling force – what contributes to it?

What influences lifting capacity in practice

Precautions when working with neodymium magnets

Danger to the youngest

Dust explosion hazard

Physical harm

Phone sensors

Maximum temperature

Allergic reactions

Respect the power

Warning for heart patients

Data carriers

Fragile material

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - characteristics
MW 12x3 / N38

Table 2: Sliding hold (wall)
MW 12x3 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 12x3 / N38

Table 4: Steel thickness (saturation) - power losses
MW 12x3 / N38

Table 5: Thermal resistance (stability) - resistance threshold
MW 12x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 12x3 / N38

Table 7: Hazards (electronics) - precautionary measures
MW 12x3 / N38

Table 8: Impact energy (kinetic energy) - collision effects
MW 12x3 / N38

Table 9: Surface protection spec
MW 12x3 / N38

Table 10: Construction data (P_c)
MW 12x3 / N38

Table 11: Physics of underwater searching
MW 12x3 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.