Product available Ships today (order by 14:00)

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: 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

technical parameters »

154.21 ZŁ with VAT / pcs + price for transport

125.37 ZŁ net + 23% VAT / pcs

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Technical of the product - 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 assembly - technical parameters

Presented data constitute the outcome of a mathematical simulation. Results rely on algorithms for the material Nd₂Fe₁₄B. Real-world conditions might slightly deviate from the simulation results. Treat these calculations as a preliminary roadmap when designing systems.

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

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

Grip strength decreases sharply with every mm of spacing. Note that even a microscopic distance (e.g., dirt, varnish, dust) significantly diminishes the holding power. Magnets operate optimally in perfect adhesion; gap drastically cuts the force. See how flashily the pull force fall, when the magnet does not adhere tightly to the steel surface. When planning the arrangement, discard redundant distances.

Table 2: Shear hold (vertical surface)
MW 55x25 / N38

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

The following data indicates the theoretical shear load required to start the shifting of the magnet down on a vertical steel plate (assuming standard friction). The holding force is relative to the air gap 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)
Raw steel	µ = 0.3 30% Nominalnej Siły	27.68 kg / 27675.0 g 271.5 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	18.45 kg / 18450.0 g 181.0 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	9.23 kg / 9225.0 g 90.5 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	46.13 kg / 46125.0 g 452.5 N

When mounting a magnet on a upright surface (e.g., a car body), it you can count on just approx. 1/5 of nominal attraction strength. Gravity and a low friction coefficient mean that products move down faster than they pull off. Designing a vertical fastening? Consider that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will slip down under a noticeably lighter cargo. Using a rubber pad can effectively increase the grip.

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

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	3%	3.08 kg / 3075.0 g 30.2 N
1 mm	8%	7.69 kg / 7687.5 g 75.4 N
2 mm	17%	15.37 kg / 15375.0 g 150.8 N
5 mm	42%	38.44 kg / 38437.5 g 377.1 N
10 mm	83%	76.88 kg / 76875.0 g 754.1 N

A thin metal plate is incapable of conduct the full magnetic flux, which weakens actual performance of the holder. Should you install a neodymium to a thin surface, the magnetism will pass right through and the holding will be smaller. To achieve the maximum of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation effect causes that on thin elements (e.g., appliance housings), the product works worse. We suggest choosing the steel thickness according to the table below.

Table 5: Working in heat (stability) - thermal limit
MW 55x25 / N38

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

Classic neodymiums irreversibly lose parameters after exceeding the maximum temperature. Watch out for overheating – heat can irreversibly demagnetize this magnet. With increasing heat, the neodymium's power briefly drops. Avoid using this magnet near heat sources higher than its safe range. Ignoring the limit will result in permanent loss of magnetic properties.

*Important note: Heat tolerance is determined by both grade, as well as the dimension ratios. Low-profile magnets (pancake types) are more susceptible to demagnetization sooner than taller cylinders. Warning indicator in the table indicates permanent field degradation for this particular item.

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

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	254.60 kg / 254602 g 2497.6 N 5 431 Gs	N/A
1 mm	246.57 kg / 246567 g 2418.8 N 8 206 Gs	221.91 kg / 221911 g 2176.9 N ~0 Gs
2 mm	238.37 kg / 238373 g 2338.4 N 8 068 Gs	214.54 kg / 214536 g 2104.6 N ~0 Gs
3 mm	230.21 kg / 230207 g 2258.3 N 7 929 Gs	207.19 kg / 207186 g 2032.5 N ~0 Gs
5 mm	214.04 kg / 214042 g 2099.8 N 7 645 Gs	192.64 kg / 192638 g 1889.8 N ~0 Gs
10 mm	175.48 kg / 175477 g 1721.4 N 6 923 Gs	157.93 kg / 157929 g 1549.3 N ~0 Gs
20 mm	111.28 kg / 111282 g 1091.7 N 5 513 Gs	100.15 kg / 100154 g 982.5 N ~0 Gs
50 mm	23.33 kg / 23326 g 228.8 N 2 524 Gs	20.99 kg / 20994 g 205.9 N ~0 Gs

Two magnets attract each other from a wider radius than a magnet and steel setup. The connection of magnet-to-magnet generates a stronger field and a larger range of operation. Want to build a solid fastener? Use a pair of magnets instead of one magnet and a steel. Remember that when connecting a pair of magnets, the pinch force is extreme. The repulsion force is a bit weaker than the connection force, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the midpoint between the magnets (resulting from vector opposition).

Table 7: Hazards (electronics) - 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
Timepiece	20 Gs (2.0 mT)	17.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	13.0 cm
Remote	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

Extremely neodym field poses a serious hazard to IT equipment and pacemakers. These NdFeB products produce a field that prevents correct functioning of sensitive medical devices. Be aware: the invisible magnetic field acts through matter and plastic. Special caution must be taken by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, membranes, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - 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

NdFeB products are very brittle – a collision with steel risks their cracking. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Kinetic force can cause material chips or painful pinches to fingers. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when playing with large magnets.

Table 9: Anti-corrosion coating durability
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)

The following table defines the conditions under which this product can be safely used. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
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 emitted by the pole surface. Key data in coil applications and motors. P_c value defines the magnet's operating point.

Table 11: Submerged application
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!

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

*Caution: On a vertical wall, the magnet holds just approx. 20-30% of its perpendicular strength.

2. Steel saturation

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

3. Power loss vs temp

*For standard magnets, the critical 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.

Engineering data and GPSR

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%

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: 010081-2025

Measurement Calculator

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Force in lbs

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Induction (Gs)

Induction (T)

Type a value in one of the inputs, to see all other values change automatically.

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The presented product is an exceptionally strong cylinder magnet, manufactured from modern NdFeB material, which, at dimensions of Ø55x25 mm, guarantees optimal power. This specific item boasts high dimensional repeatability and professional build quality, making it an excellent solution for professional engineers and designers. As a cylindrical magnet with significant force (approx. 92.25 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its Ni-Cu-Ni coating secures it against corrosion in typical operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is perfect for building generators, advanced Hall effect sensors, and efficient filters, where field concentration on a small surface counts. Thanks to the pull force of 904.94 N with a weight of only 445.47 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 precision component. To ensure long-term durability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing durability of the connection.

Magnets N38 are strong enough for the majority 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 in continuous sale 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 compact dimensions, proves the high power of the NdFeB material. The product has a [NiCuNi] coating, which secures it against external factors, 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 standard 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.

Advantages

Apart from their consistent power, neodymium magnets have these key benefits:

They do not lose strength, even during nearly ten years – the reduction in power is only ~1% (according to tests),
They have excellent resistance to magnetic field loss as a result of opposing magnetic fields,
Thanks to the shimmering finish, the plating of nickel, gold, or silver gives an modern appearance,
The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures approaching 230°C and above...
Thanks to flexibility in forming and the ability to adapt to unusual requirements,
Huge importance in advanced technology sectors – they find application in HDD drives, electric drive systems, diagnostic systems, as well as technologically advanced constructions.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Weaknesses

Disadvantages of neodymium magnets:

At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
Limited ability of producing nuts in the magnet and complicated shapes - preferred is a housing - mounting mechanism.
Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Magnetic strength at its maximum – what it depends on?

The load parameter shown concerns the maximum value, obtained under ideal test conditions, meaning:

with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
with a thickness of at least 10 mm
with a surface cleaned and smooth
without any clearance between the magnet and steel
under vertical force vector (90-degree angle)
at standard ambient temperature

Key elements affecting lifting force

Bear in mind that the working load may be lower depending on elements below, in order of importance:

Air gap (betwixt the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
Steel thickness – too thin sheet does not close the flux, causing part of the power to be escaped into the air.
Metal type – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
Surface condition – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet and the plate lowers the holding force.

Warnings

No play value

Neodymium magnets are not toys. Accidental ingestion of a few magnets can lead to them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Skin irritation risks

Studies show that nickel (standard magnet coating) is a strong allergen. If you have an allergy, avoid direct skin contact or select versions in plastic housing.

Powerful field

Handle magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and respect their power.

Impact on smartphones

Navigation devices and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Combustion hazard

Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this may cause fire.

Data carriers

Do not bring magnets close to a purse, laptop, or TV. The magnetic field can destroy these devices and erase data from cards.

Warning for heart patients

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Material brittleness

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them cracking into small pieces.

Do not overheat magnets

Do not overheat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Bodily injuries

Mind your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing anything in their path. Be careful!

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

MW 55x25 / N38 - cylindrical magnet

Technical of the product - MW 55x25 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Engineering simulation of the assembly - technical parameters

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

Table 2: Shear hold (vertical surface) 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: Working in heat (stability) - thermal limit MW 55x25 / N38

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

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

Table 8: Collisions (kinetic energy) - collision effects MW 55x25 / N38

Table 9: Anti-corrosion coating durability MW 55x25 / N38

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

Table 11: Submerged application MW 55x25 / N38

1. Sliding resistance

2. Steel saturation

3. Power loss vs temp

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

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

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Advantages and disadvantages of rare earth magnets.

Advantages

Weaknesses

Lifting parameters

Magnetic strength at its maximum – what it depends on?

Key elements affecting lifting force

Warnings

No play value

Skin irritation risks

Powerful field

Impact on smartphones

Combustion hazard

Data carriers

Warning for heart patients

Material brittleness

Do not overheat magnets

Bodily injuries

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear hold (vertical surface)
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: Working in heat (stability) - thermal limit
MW 55x25 / N38

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

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

Table 8: Collisions (kinetic energy) - collision effects
MW 55x25 / N38

Table 9: Anti-corrosion coating durability
MW 55x25 / N38

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

Table 11: Submerged application
MW 55x25 / N38