Product available Ships tomorrow

MW 55x25 / 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 010081

GTIN/EAN: 5906301810803

5.00

Diameter Ø

55 mm [±0,1 mm]

Height

25 mm [±0,1 mm]

Weight

445.47 g

Magnetization Direction

↑ axial

Load capacity

92.25 kg / 904.94 N

Magnetic Induction

416.97 mT / 4170 Gs

Coating

[NiCuNi] Nickel

see specifications »

154.21 ZŁ with VAT / pcs + price for transport

125.37 ZŁ net + 23% VAT / pcs

bulk discounts:

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Give us a call +48 22 499 98 98 alternatively send us a note through request form our website.
Weight along with shape of a neodymium magnet can be reviewed using our magnetic mass calculator.

Orders placed before 14:00 will be shipped the same business day.

Product card - MW 55x25 / N38 - cylindrical magnet

Specification / characteristics - MW 55x25 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010081
GTIN/EAN	5906301810803
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	55 mm [±0,1 mm]
Height	25 mm [±0,1 mm]
Weight	445.47 g
Magnetization Direction	↑ axial
Load capacity ~ ?	92.25 kg / 904.94 N
Magnetic Induction ~ ?	416.97 mT / 4170 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 55x25 / 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 simulation of the magnet - report

Presented values constitute the direct effect of a mathematical analysis. Values rely on algorithms for the material Nd₂Fe₁₄B. Actual conditions may deviate from the simulation results. Please consider these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs distance) - interaction chart
MW 55x25 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4169 Gs 416.9 mT	92.25 kg / 203.38 pounds 92250.0 g / 905.0 N	crushing
1 mm	4034 Gs 403.4 mT	86.37 kg / 190.41 pounds 86369.8 g / 847.3 N	crushing
2 mm	3894 Gs 389.4 mT	80.47 kg / 177.41 pounds 80469.7 g / 789.4 N	crushing
3 mm	3751 Gs 375.1 mT	74.67 kg / 164.62 pounds 74670.6 g / 732.5 N	crushing
5 mm	3461 Gs 346.1 mT	63.58 kg / 140.17 pounds 63580.6 g / 623.7 N	crushing
10 mm	2756 Gs 275.6 mT	40.32 kg / 88.89 pounds 40320.8 g / 395.5 N	crushing
15 mm	2140 Gs 214.0 mT	24.31 kg / 53.59 pounds 24308.3 g / 238.5 N	crushing
20 mm	1644 Gs 164.4 mT	14.34 kg / 31.61 pounds 14338.1 g / 140.7 N	crushing
30 mm	975 Gs 97.5 mT	5.05 kg / 11.12 pounds 5046.0 g / 49.5 N	warning
50 mm	388 Gs 38.8 mT	0.80 kg / 1.77 pounds 801.0 g / 7.9 N	weak grip

Grip strength weakens sharply with every subsequent millimeter of distance. Remember that even the smallest gap (e.g., dirt, paint, rust) noticeably reduces the pull force. Neodymiums hold most effectively during direct contact; gap nullifies the force. Observe how rapidly the load capacity fall, when the product does not touch tightly to the metal substrate. When planning the assembly, discard additional spacers.

Table 2: Slippage hold (wall)
MW 55x25 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	18.45 kg / 40.68 pounds 18450.0 g / 181.0 N
1 mm	Stal (~0.2)	17.27 kg / 38.08 pounds 17274.0 g / 169.5 N
2 mm	Stal (~0.2)	16.09 kg / 35.48 pounds 16094.0 g / 157.9 N
3 mm	Stal (~0.2)	14.93 kg / 32.92 pounds 14934.0 g / 146.5 N
5 mm	Stal (~0.2)	12.72 kg / 28.03 pounds 12716.0 g / 124.7 N
10 mm	Stal (~0.2)	8.06 kg / 17.78 pounds 8064.0 g / 79.1 N
15 mm	Stal (~0.2)	4.86 kg / 10.72 pounds 4862.0 g / 47.7 N
20 mm	Stal (~0.2)	2.87 kg / 6.32 pounds 2868.0 g / 28.1 N
30 mm	Stal (~0.2)	1.01 kg / 2.23 pounds 1010.0 g / 9.9 N
50 mm	Stal (~0.2)	0.16 kg / 0.35 pounds 160.0 g / 1.6 N

The following data indicates the approximate weight limit required to start the slippage of the magnet down against a vertical steel plate (considering typical friction coefficient). This value varies with the separation distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 55x25 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	27.68 kg / 61.01 pounds 27675.0 g / 271.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	18.45 kg / 40.68 pounds 18450.0 g / 181.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	9.23 kg / 20.34 pounds 9225.0 g / 90.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	46.13 kg / 101.69 pounds 46125.0 g / 452.5 N

When mounting a holder on a vertical surface (e.g., a board), it you can count on just approx. 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip cause that products move down easier than they pull off. Designing a vertical fastening? Consider that the sliding force is noticeably lower than the maximum static pull force. On a slippery surface, the magnet will slide down under a significantly smaller cargo. Using a rubber pad can significantly raise the stability.

Table 4: Steel thickness (substrate influence) - power losses
MW 55x25 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	3.08 kg / 6.78 pounds 3075.0 g / 30.2 N
1 mm	8%	7.69 kg / 16.95 pounds 7687.5 g / 75.4 N
2 mm	17%	15.37 kg / 33.90 pounds 15375.0 g / 150.8 N
3 mm	25%	23.06 kg / 50.84 pounds 23062.5 g / 226.2 N
5 mm	42%	38.44 kg / 84.74 pounds 38437.5 g / 377.1 N
10 mm	83%	76.88 kg / 169.48 pounds 76875.0 g / 754.1 N
11 mm	92%	84.56 kg / 186.43 pounds 84562.5 g / 829.6 N
12 mm	100%	92.25 kg / 203.38 pounds 92250.0 g / 905.0 N

A thin metal plate cannot focus the full magnetic flux, which weakens actual performance of the magnet. If you install a neodymium to a weak sheet, the flux will penetrate right through and the attraction force will be weaker. To achieve the maximum of this magnet's power, you require a sufficiently solid backing of metal. The saturation effect causes that on sheet metal structures (e.g., car bodies), the magnet shows lower pull force. We suggest choosing the steel thickness according to the table below.

Table 5: Thermal stability (material behavior) - power drop
MW 55x25 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	92.25 kg / 203.38 pounds 92250.0 g / 905.0 N	OK
40 °C	-2.2%	90.22 kg / 198.90 pounds 90220.5 g / 885.1 N	OK
60 °C	-4.4%	88.19 kg / 194.43 pounds 88191.0 g / 865.2 N
80 °C	-6.6%	86.16 kg / 189.95 pounds 86161.5 g / 845.2 N
100 °C	-28.8%	65.68 kg / 144.80 pounds 65682.0 g / 644.3 N

Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Avoid high temperatures – high temperature can irreversibly damage this magnet. With every degree above norm, the neodymium's capacity briefly decreases. Refrain from using this magnet close to ovens higher than its working range. Too high temperature will lead to permanent loss of magnetism.

*Important note: Temperature resistance is determined by both grade, as well as the dimension ratios. Thin magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. Warning indicator in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 55x25 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	254.60 kg / 561.30 pounds 5 431 Gs	38.19 kg / 84.20 pounds 38190 g / 374.6 N	N/A
1 mm	246.57 kg / 543.59 pounds 8 206 Gs	36.99 kg / 81.54 pounds 36985 g / 362.8 N	221.91 kg / 489.23 pounds ~0 Gs
2 mm	238.37 kg / 525.52 pounds 8 068 Gs	35.76 kg / 78.83 pounds 35756 g / 350.8 N	214.54 kg / 472.97 pounds ~0 Gs
3 mm	230.21 kg / 507.52 pounds 7 929 Gs	34.53 kg / 76.13 pounds 34531 g / 338.7 N	207.19 kg / 456.77 pounds ~0 Gs
5 mm	214.04 kg / 471.88 pounds 7 645 Gs	32.11 kg / 70.78 pounds 32106 g / 315.0 N	192.64 kg / 424.69 pounds ~0 Gs
10 mm	175.48 kg / 386.86 pounds 6 923 Gs	26.32 kg / 58.03 pounds 26322 g / 258.2 N	157.93 kg / 348.17 pounds ~0 Gs
20 mm	111.28 kg / 245.33 pounds 5 513 Gs	16.69 kg / 36.80 pounds 16692 g / 163.8 N	100.15 kg / 220.80 pounds ~0 Gs
50 mm	23.33 kg / 51.43 pounds 2 524 Gs	3.50 kg / 7.71 pounds 3499 g / 34.3 N	20.99 kg / 46.28 pounds ~0 Gs
60 mm	13.93 kg / 30.70 pounds 1 950 Gs	2.09 kg / 4.61 pounds 2089 g / 20.5 N	12.53 kg / 27.63 pounds ~0 Gs
70 mm	8.48 kg / 18.70 pounds 1 522 Gs	1.27 kg / 2.81 pounds 1272 g / 12.5 N	7.63 kg / 16.83 pounds ~0 Gs
80 mm	5.29 kg / 11.66 pounds 1 202 Gs	0.79 kg / 1.75 pounds 793 g / 7.8 N	4.76 kg / 10.50 pounds ~0 Gs
90 mm	3.38 kg / 7.45 pounds 961 Gs	0.51 kg / 1.12 pounds 507 g / 5.0 N	3.04 kg / 6.70 pounds ~0 Gs
100 mm	2.21 kg / 4.87 pounds 777 Gs	0.33 kg / 0.73 pounds 332 g / 3.3 N	1.99 kg / 4.39 pounds ~0 Gs

Two magnetic products interact from a wider radius than a magnet and sheet combination. Such a system of magnet-to-magnet generates a stronger field and a larger range of operation. Want to build a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the collision energy is extreme. The repulsion force is slightly lower than the connection force, but still impressive.
*Field value in repulsion mode reaches ~0 Gs at the midpoint of the gap (due to field cancellation).
Important: Estimates apply to shear force of dual same neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Protective zones (electronics) - precautionary measures
MW 55x25 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	27.5 cm
Hearing aid	10 Gs (1.0 mT)	21.5 cm
Timepiece	20 Gs (2.0 mT)	17.0 cm
Mobile device	40 Gs (4.0 mT)	13.0 cm
Car key	50 Gs (5.0 mT)	12.0 cm
Payment card	400 Gs (40.0 mT)	5.0 cm
HDD hard drive	600 Gs (60.0 mT)	4.5 cm

A strong magnetic field is a real danger to IT equipment and medical implants. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Notice: the unseen radiation acts through matter and housings. Exceptional care must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, car keys, membranes, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Dynamics (cracking risk) - collision effects
MW 55x25 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	18.05 km/h (5.01 m/s)	5.60 J
30 mm	25.98 km/h (7.22 m/s)	11.60 J
50 mm	32.63 km/h (9.06 m/s)	18.30 J
100 mm	45.90 km/h (12.75 m/s)	36.21 J

Magnetic elements are very brittle – a violent impact against metal causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or dangerous crushing to skin. Always hold the magnet during mounting so it doesn't hit with great force against the metal. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when playing with large magnets.

Table 9: Surface protection spec
MW 55x25 / N38

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

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction data (Flux)
MW 55x25 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	101 075 Mx	1010.7 µWb
P_c Coefficient	0.55	Low (Flat)

Flux value passing through the pole surface. Key data when building generators as well as sensors. P_c value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 55x25 / N38

Environment	Effective steel pull	Effect
Air (land)	92.25 kg	Standard
Water (riverbed)	105.63 kg (+13.38 kg buoyancy gain)	+14.5%

Warning: 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. Sliding resistance

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

2. Steel saturation

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

3. Power loss vs temp

*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

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 and environmental data

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: 010081-2026

Measurement Calculator

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Newtons (N)

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Input a figure in a single slot to see the conversion for all other units at once.

MPL 40x15x5 / N38 - lamellar magnet

7.63 ZŁ brutto / pcs

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UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

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MW 6x3 / N38 - cylindrical magnet

0.381 ZŁ brutto / pcs

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MPL 25x15x2 / N38 - lamellar magnet

2.39 ZŁ brutto / pcs

This product is an exceptionally strong rod magnet, composed of advanced NdFeB material, which, with dimensions of Ø55x25 mm, guarantees the highest energy density. This specific item boasts a tolerance of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 92.25 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is ideal for building generators, advanced Hall effect sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the pull force of 904.94 N with a weight of only 445.47 g, this rod is indispensable in electronics and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 55.1 mm) using epoxy glues. To ensure long-term durability in industry, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.

Magnets N38 are suitable for 90% of applications in automation and machine building, where excessive miniaturization with maximum force is not required. If you need the strongest magnets in the same volume (Ø55x25), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø55x25 mm, which, at a weight of 445.47 g, makes it an element with high magnetic energy density. The key parameter here is the holding force amounting to approximately 92.25 kg (force ~904.94 N), which, with such defined 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 55 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.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Benefits

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

Their strength is maintained, and after approximately ten years it drops only by ~1% (theoretically),
They are resistant to demagnetization induced by external magnetic fields,
A magnet with a shiny nickel surface is more attractive,
Magnets are distinguished by excellent magnetic induction on the surface,
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 exact machining as well as optimizing to concrete needs,
Huge importance in electronics industry – they serve a role in computer drives, brushless drives, medical devices, as well as multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

Cons of neodymium magnets and proposals for their use:

At very strong impacts they can crack, therefore we recommend placing them in steel cases. 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 force. 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
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
We recommend cover - magnetic mount, due to difficulties in realizing nuts inside the magnet and complex shapes.
Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

The specified lifting capacity refers to the peak performance, obtained under laboratory conditions, specifically:

using a plate made of low-carbon steel, serving as a ideal flux conductor
possessing a thickness of min. 10 mm to avoid saturation
with an ideally smooth touching surface
under conditions of gap-free contact (surface-to-surface)
during detachment in a direction vertical to the mounting surface
at temperature room level

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity depends on several key aspects, presented from most significant:

Distance – the presence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Load vector – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
Base massiveness – too thin plate does not accept the full field, causing part of the power to be escaped into the air.
Steel type – low-carbon steel gives the best results. Higher carbon content decrease magnetic properties and holding force.
Surface quality – the more even the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, however under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.

Precautions when working with neodymium magnets

Choking Hazard

Product intended for adults. Small elements pose a choking risk, causing intestinal necrosis. Store away from children and animals.

ICD Warning

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Mechanical processing

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.

Keep away from computers

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

Power loss in heat

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Respect the power

Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.

Metal Allergy

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction appears, cease handling magnets and use protective gear.

Beware of splinters

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.

Impact on smartphones

Navigation devices and mobile phones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Physical harm

Risk of injury: The attraction force is so immense that it can result in hematomas, pinching, and broken bones. Protective gloves are recommended.

Important! Want to know more? Check our post: Why are neodymium magnets dangerous?

MW 55x25 / N38 - cylindrical magnet

Product card - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the magnet - report

Table 1: Static force (pull vs distance) - interaction chart MW 55x25 / N38

Table 2: Slippage hold (wall) MW 55x25 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 55x25 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 55x25 / N38

Table 5: Thermal stability (material behavior) - power drop MW 55x25 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MW 55x25 / N38

Table 7: Protective zones (electronics) - precautionary measures MW 55x25 / N38

Table 8: Dynamics (cracking risk) - collision effects MW 55x25 / N38

Table 9: Surface protection spec MW 55x25 / N38

Table 10: Construction data (Flux) MW 55x25 / N38

Table 11: Underwater work (magnet fishing) MW 55x25 / N38

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Material specification

Sustainability

Magnet pull force

Magnetic Field

See also deals

MPL 40x15x5 / N38 - lamellar magnet

UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

MW 6x3 / N38 - cylindrical magnet

MPL 25x15x2 / N38 - lamellar magnet

Strengths as well as weaknesses of Nd2Fe14B magnets.

Benefits

Disadvantages

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

Determinants of lifting force in real conditions

Precautions when working with neodymium magnets

Choking Hazard

ICD Warning

Mechanical processing

Keep away from computers

Power loss in heat

Respect the power

Metal Allergy

Beware of splinters

Impact on smartphones

Physical harm

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - interaction chart
MW 55x25 / N38

Table 2: Slippage hold (wall)
MW 55x25 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 55x25 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 55x25 / N38

Table 5: Thermal stability (material behavior) - power drop
MW 55x25 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MW 55x25 / N38

Table 7: Protective zones (electronics) - precautionary measures
MW 55x25 / N38

Table 8: Dynamics (cracking risk) - collision effects
MW 55x25 / N38

Table 9: Surface protection spec
MW 55x25 / N38

Table 10: Construction data (Flux)
MW 55x25 / N38

Table 11: Underwater work (magnet fishing)
MW 55x25 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.