Product available Ships tomorrow

MW 55x25 / 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 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

check technical data »

154.21 ZŁ with VAT / pcs + price for transport

125.37 ZŁ net + 23% VAT / pcs

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Physical properties - 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

Physical analysis of the magnet - technical parameters

Presented data constitute the direct effect of a mathematical calculation. Results are based on models for the class Nd₂Fe₁₄B. Real-world conditions might slightly differ. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static pull 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 lbs 92250.0 g / 905.0 N	dangerous!
1 mm	4034 Gs 403.4 mT	86.37 kg / 190.41 lbs 86369.8 g / 847.3 N	dangerous!
2 mm	3894 Gs 389.4 mT	80.47 kg / 177.41 lbs 80469.7 g / 789.4 N	dangerous!
3 mm	3751 Gs 375.1 mT	74.67 kg / 164.62 lbs 74670.6 g / 732.5 N	dangerous!
5 mm	3461 Gs 346.1 mT	63.58 kg / 140.17 lbs 63580.6 g / 623.7 N	dangerous!
10 mm	2756 Gs 275.6 mT	40.32 kg / 88.89 lbs 40320.8 g / 395.5 N	dangerous!
15 mm	2140 Gs 214.0 mT	24.31 kg / 53.59 lbs 24308.3 g / 238.5 N	dangerous!
20 mm	1644 Gs 164.4 mT	14.34 kg / 31.61 lbs 14338.1 g / 140.7 N	dangerous!
30 mm	975 Gs 97.5 mT	5.05 kg / 11.12 lbs 5046.0 g / 49.5 N	strong
50 mm	388 Gs 38.8 mT	0.80 kg / 1.77 lbs 801.0 g / 7.9 N	weak grip

Magnetic force weakens sharply with every mm of distance. Keep in mind that even the smallest gap (e.g., contamination, varnish, dust) significantly reduces the pull force. Magnets work optimally at the point of direct contact; air break weakens the force. Analyze how quickly the pull force plummet, when the magnet does not touch flatly to the steel surface. When planning the mounting, eliminate redundant distances.

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

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

The table below presents the theoretical shear load sufficient to start the sliding of the magnet downwards against a vertical metal surface (considering typical friction). The holding force is a function of the separation distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - 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 lbs 27675.0 g / 271.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	18.45 kg / 40.68 lbs 18450.0 g / 181.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	9.23 kg / 20.34 lbs 9225.0 g / 90.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	46.13 kg / 101.69 lbs 46125.0 g / 452.5 N

When mounting a holder on a upright plane (e.g., a fridge), it you can count on only approx. 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip influence the fact that products slide down easier than they pop off the substrate. Want to create a hanger? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the holder will slide down under a significantly smaller cargo. Application of an anti-slip coating can significantly increase the grip.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 55x25 / N38

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

A thin sheet is incapable of take in the full magnetic flux, which wastes potential of the magnet. If you mount a strong magnet to a too thin substrate, the magnetism will penetrate right through and the holding will be smaller. To achieve the maximum of this neodymium's power, you require a sufficiently solid backing of metal. The saturation phenomenon causes that on delicate walls (e.g., appliance housings), the magnet holds weaker. We suggest choosing the steel thickness from these parameters.

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 lbs 92250.0 g / 905.0 N	OK
40 °C	-2.2%	90.22 kg / 198.90 lbs 90220.5 g / 885.1 N	OK
60 °C	-4.4%	88.19 kg / 194.43 lbs 88191.0 g / 865.2 N
80 °C	-6.6%	86.16 kg / 189.95 lbs 86161.5 g / 845.2 N
100 °C	-28.8%	65.68 kg / 144.80 lbs 65682.0 g / 644.3 N

Classic neodymiums irreversibly lose strength after exceeding the maximum temperature. Protect against heat – high temperature can irreversibly damage this product. With increasing heat, the magnet's force briefly lowers. Avoid using this product close to ovens higher than its safe range. Too high temperature will lead to permanent loss of magnetism.

*Technical advisory: Thermal stability is determined by both grade, as well as the dimension ratios. Thin magnets (pancake types) risk losing magnetic properties sooner than long magnets. Red status in the table signals a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (attraction) - forces in the system
MW 55x25 / N38

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

Two strong neodymiums interact from a significantly greater distance than a magnet and sheet setup. The setup of two magnets creates a more powerful interaction and a wider radius of performance. Planning to create a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Be careful that when attracting two neodymiums, the collision energy is huge. The levitation is slightly lower than the attraction, but still significant.
*Flux density in repulsion mode reaches ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Important: Estimates apply to sliding force of a pair of same magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Hazards (implants) - warnings
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
Mechanical watch	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

Powerful magnet radiation poses a real danger to IT equipment as well as pacemakers. These neodymiums generate a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation passes through tissues and glass. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, car keys, speakers, and displays. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
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 delicate – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can trigger coating fragments or injury to skin. Always hold the magnet during mounting so it doesn't slam with momentum against the metal. A collision at high speed ends with a crack of the magnet. Use safety goggles when handling with powerful specimens.

Table 9: Corrosion resistance
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)

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

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

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

Total magnetic flux passing through the pole surface. Key data in coil applications and motors. The P_c coefficient determines the working geometry.

Table 11: Hydrostatics and buoyancy
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%

Corrosion warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Sliding resistance

*Warning: On a vertical wall, the magnet retains just ~20% of its perpendicular strength.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) severely weakens the holding force.

3. Heat tolerance

*For standard magnets, 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) = 0.55

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

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: 010081-2026

Measurement Calculator

Force (pull)

Force in kg

Newtons (N)

Force in lbs

Magnetic Induction

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UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

300.00 ZŁ brutto / pcs

The offered product is an incredibly powerful rod magnet, made from durable NdFeB material, which, at dimensions of Ø55x25 mm, guarantees maximum efficiency. This specific item 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 impressive force (approx. 92.25 kg), this product is available off-the-shelf from our European logistics center, ensuring lightning-fast order fulfillment. Moreover, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building generators, advanced 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 miniature devices and wherever every gram matters.

Since our magnets have a very precise dimensions, 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, 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 a great economic balance and high resistance to demagnetization. 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 in continuous sale in our store.

The presented product is a neodymium magnet with precisely defined parameters: diameter 55 mm and height 25 mm. The value of 904.94 N means that the magnet is capable of holding a weight many times exceeding its own mass of 445.47 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.

This rod magnet is magnetized axially (along the height of 25 mm), which means that the N and S poles are located on the flat, circular surfaces. 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 diametrically if your project requires it.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

Their magnetic field is maintained, and after around ten years it decreases only by ~1% (theoretically),
Magnets perfectly defend themselves against loss of magnetization caused by foreign field sources,
Thanks to the reflective finish, the plating of nickel, gold, or silver gives an elegant appearance,
Neodymium magnets ensure maximum magnetic induction on a small area, which ensures high operational effectiveness,
Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
Considering the ability of free forming and adaptation to individualized needs, NdFeB magnets can be created in a broad palette of shapes and sizes, which increases their versatility,
Versatile presence in electronics industry – they find application in magnetic memories, electric drive systems, medical equipment, also technologically advanced constructions.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Cons of neodymium magnets and proposals for their use:

They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
We suggest casing - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complicated shapes.
Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these magnets are able to be problematic in diagnostics medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

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

Breakaway force was determined for ideal contact conditions, including:

on a plate made of mild steel, optimally conducting the magnetic field
whose transverse dimension is min. 10 mm
with an ground contact surface
under conditions of ideal adhesion (metal-to-metal)
under axial application of breakaway force (90-degree angle)
in stable room temperature

Magnet lifting force in use – key factors

It is worth knowing that the application force may be lower depending on the following factors, starting with the most relevant:

Distance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Angle of force application – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
Plate thickness – insufficiently thick sheet does not accept the full field, causing part of the power to be wasted into the air.
Metal type – different alloys attracts identically. Alloy additives weaken the attraction effect.
Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
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, however under shearing force the load capacity is reduced by as much as 75%. 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

Compass and GPS

GPS units and mobile phones are extremely susceptible to magnetic fields. Direct contact with a strong magnet can decalibrate the internal compass in your phone.

Electronic devices

Do not bring magnets near a wallet, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.

Medical interference

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Sensitization to coating

A percentage of the population experience a contact allergy to Ni, which is the standard coating for neodymium magnets. Prolonged contact can result in skin redness. It is best to use protective gloves.

Finger safety

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

Shattering risk

NdFeB magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets leads to them shattering into shards.

Immense force

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Choking Hazard

Neodymium magnets are not toys. Swallowing several magnets may result in them connecting inside the digestive tract, which poses a critical condition and requires urgent medical intervention.

Permanent damage

Standard neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Flammability

Dust created during machining of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Danger! Looking for details? Check our post: Why are neodymium magnets dangerous?

MW 55x25 / N38 - cylindrical magnet

Physical properties - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the magnet - technical parameters

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

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MW 55x25 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MW 55x25 / N38

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

Table 6: Two magnets (attraction) - forces in the system MW 55x25 / N38

Table 7: Hazards (implants) - warnings MW 55x25 / N38

Table 8: Dynamics (kinetic energy) - warning MW 55x25 / N38

Table 9: Corrosion resistance MW 55x25 / N38

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

Table 11: Hydrostatics and buoyancy MW 55x25 / N38

1. Sliding resistance

2. Plate thickness effect

3. Heat tolerance

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

Elemental analysis

Environmental data

Force (pull)

Magnetic Induction

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Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Cons

Pull force analysis

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

Magnet lifting force in use – key factors

Safety rules for work with neodymium magnets

Compass and GPS

Electronic devices

Medical interference

Sensitization to coating

Finger safety

Shattering risk

Immense force

Choking Hazard

Permanent damage

Flammability

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

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

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 55x25 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MW 55x25 / N38

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

Table 6: Two magnets (attraction) - forces in the system
MW 55x25 / N38

Table 7: Hazards (implants) - warnings
MW 55x25 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 55x25 / N38

Table 9: Corrosion resistance
MW 55x25 / N38

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

Table 11: Hydrostatics and buoyancy
MW 55x25 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.