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MW 5x30 / 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 010088

GTIN/EAN: 5906301810872

5.00

Diameter Ø

5 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

4.42 g

Magnetization Direction

↑ axial

Load capacity

0.45 kg / 4.40 N

Magnetic Induction

616.32 mT / 6163 Gs

Coating

[NiCuNi] Nickel

technical details »

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Technical details - MW 5x30 / N38 - cylindrical magnet

Specification / characteristics - MW 5x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010088
GTIN/EAN	5906301810872
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	5 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	4.42 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.45 kg / 4.40 N
Magnetic Induction ~ ?	616.32 mT / 6163 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 5x30 / 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

Technical analysis of the magnet - technical parameters

Presented values constitute the direct effect of a mathematical calculation. Results are based on algorithms for the class Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Please consider these calculations as a preliminary roadmap for designers.

Table 1: Static pull force (pull vs gap) - characteristics
MW 5x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg)	Risk Status
0 mm	6154 Gs 615.4 mT	0.45 kg / 450.0 g 4.4 N	weak grip
1 mm	3877 Gs 387.7 mT	0.18 kg / 178.6 g 1.8 N	weak grip
2 mm	2308 Gs 230.8 mT	0.06 kg / 63.3 g 0.6 N	weak grip
3 mm	1419 Gs 141.9 mT	0.02 kg / 23.9 g 0.2 N	weak grip
5 mm	639 Gs 63.9 mT	0.00 kg / 4.8 g 0.0 N	weak grip
10 mm	173 Gs 17.3 mT	0.00 kg / 0.4 g 0.0 N	weak grip
15 mm	75 Gs 7.5 mT	0.00 kg / 0.1 g 0.0 N	weak grip
20 mm	40 Gs 4.0 mT	0.00 kg / 0.0 g 0.0 N	weak grip
30 mm	16 Gs 1.6 mT	0.00 kg / 0.0 g 0.0 N	weak grip
50 mm	5 Gs 0.5 mT	0.00 kg / 0.0 g 0.0 N	weak grip

Pulling power weakens significantly with every subsequent millimeter of distance. Keep in mind that even a very thin break (e.g., contamination, paint, veneer) strongly diminishes the holding power. Magnets work optimally at the point of direct contact; air break kills the power. Notice how flashily the load capacity fall, when the product does not adhere flatly to the steel surface. When calculating the mounting, discard redundant distances.

Table 2: Sliding load (wall)
MW 5x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg)
0 mm	Stal (~0.2)	0.09 kg / 90.0 g 0.9 N
1 mm	Stal (~0.2)	0.04 kg / 36.0 g 0.4 N
2 mm	Stal (~0.2)	0.01 kg / 12.0 g 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 4.0 g 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.0 g 0.0 N

The table below calculates the approximate holding capacity sufficient to initiate the downward movement of the magnet downwards against a vertical steel wall (assuming standard friction coefficient). This parameter depends on the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.14 kg / 135.0 g 1.3 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.09 kg / 90.0 g 0.9 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.05 kg / 45.0 g 0.4 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.23 kg / 225.0 g 2.2 N

When mounting a holder on a upright wall (e.g., a fridge), it you can count on only about 1/5 of its nominal power. Gravity as well as a weak degree of grip cause that magnets move down easier than they pop off the substrate. Planning a hanger? Consider that the shear force is much weaker than the perpendicular breakaway force. On a slippery surface, the magnet will give way down under a much lighter load. Using a rubber layer can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MW 5x30 / N38

Steel thickness (mm)	% power	Real pull force (kg)
0.5 mm	10%	0.05 kg / 45.0 g 0.4 N
1 mm	25%	0.11 kg / 112.5 g 1.1 N
2 mm	50%	0.23 kg / 225.0 g 2.2 N
5 mm	100%	0.45 kg / 450.0 g 4.4 N
10 mm	100%	0.45 kg / 450.0 g 4.4 N

A thin metal plate cannot absorb the full magnetic flux, which squanders power of the magnet. If you mount a strong magnet to a too thin substrate, the magnetism will penetrate right through and the attraction force will be weaker. To utilize 100% of this neodymium's power, you require a sufficiently solid piece of steel. The material oversaturation means that on sheet metal structures (e.g., thin profiles), the product holds weaker. We recommend selecting the steel thickness according to the table below.

Table 5: Working in heat (stability) - thermal limit
MW 5x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull	Status
20 °C	0.0%	0.45 kg / 450.0 g 4.4 N	OK
40 °C	-2.2%	0.44 kg / 440.1 g 4.3 N	OK
60 °C	-4.4%	0.43 kg / 430.2 g 4.2 N	OK
80 °C	-6.6%	0.42 kg / 420.3 g 4.1 N
100 °C	-28.8%	0.32 kg / 320.4 g 3.1 N

Ordinary NdFeB products irreversibly lose parameters above the temperature limit. Watch out for overheating – high temperature can irreversibly demagnetize this magnet. With every degree above norm, the neodymium's capacity momentarily decreases. Do not use this product close to heaters exceeding its safe range. Ignoring the limit will cause permanent loss of magnetic properties.

*Important note: Heat tolerance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (pancake types) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 5x30 / N38

Gap (mm)	Attraction (kg) (N-S)	Repulsion (kg) (N-N)
0 mm	4.58 kg / 4584 g 45.0 N 6 170 Gs	N/A
1 mm	2.98 kg / 2982 g 29.3 N 9 927 Gs	2.68 kg / 2684 g 26.3 N ~0 Gs
2 mm	1.82 kg / 1820 g 17.9 N 7 755 Gs	1.64 kg / 1638 g 16.1 N ~0 Gs
3 mm	1.08 kg / 1083 g 10.6 N 5 981 Gs	0.97 kg / 974 g 9.6 N ~0 Gs
5 mm	0.39 kg / 391 g 3.8 N 3 595 Gs	0.35 kg / 352 g 3.5 N ~0 Gs
10 mm	0.05 kg / 49 g 0.5 N 1 278 Gs	0.04 kg / 44 g 0.4 N ~0 Gs
20 mm	0.00 kg / 4 g 0.0 N 346 Gs	0.00 kg / 0 g 0.0 N ~0 Gs
50 mm	0.00 kg / 0 g 0.0 N 49 Gs	0.00 kg / 0 g 0.0 N ~0 Gs

Two strong neodymiums interact from a significantly greater distance than a magnet and steel setup. Such a system of two magnets generates a stronger field and a further horizon of performance. Designing a solid fastener? Use a pair of magnets instead of one magnet and a steel. Be careful that when bringing together two magnets, the collision energy is massive. The levitation is marginally weaker than the attraction, but still significant.
*Field value for N-N configuration drops to ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).

Table 7: Protective zones (implants) - precautionary measures
MW 5x30 / 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)	3.0 cm
Mobile device	40 Gs (4.0 mT)	2.5 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation poses a real danger to electronic devices and pacemakers. These NdFeB products generate a flux that prevents correct functioning of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and plastic. Special caution must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Do not place the magnet near cards, HDD media, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - warning
MW 5x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	10.18 km/h (2.83 m/s)	0.02 J
30 mm	17.63 km/h (4.90 m/s)	0.05 J
50 mm	22.75 km/h (6.32 m/s)	0.09 J
100 mm	32.18 km/h (8.94 m/s)	0.18 J

NdFeB products are delicate – a violent impact against metal can result in shattering. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Kinetic force can cause material chips or painful pinches to fingers. Always hold the magnet during mounting so it doesn't hit with great force against the steel surface. A collision at high speed ends with a crack of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MW 5x30 / N38

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

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MW 5x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 468 Mx	14.7 µWb
P_c Coefficient	1.59	High (Stable)

Total magnetic flux passing through the pole surface. Key data when building generators and motors. P_c value defines the working geometry.

Table 11: Submerged application
MW 5x30 / N38

Environment	Effective steel pull	Effect
Air (land)	0.45 kg	Standard
Water (riverbed)	0.52 kg (+0.07 kg Buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Shear force

*Caution: On a vertical surface, the magnet retains just approx. 20-30% of its max power.

2. Plate thickness effect

*Thin metal sheet (e.g. 0.5mm PC case) significantly reduces 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) = 1.59

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.

Engineering data and GPSR

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: 010088-2025

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UMT 12x20 red / N38 - board holder

1.894 ZŁ brutto / pcs

This product is an incredibly powerful rod magnet, manufactured from advanced NdFeB material, which, with dimensions of Ø5x30 mm, guarantees optimal power. The MW 5x30 / N38 model features high dimensional repeatability and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a magnetic rod with impressive force (approx. 0.45 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Furthermore, its Ni-Cu-Ni coating shields it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 4.40 N with a weight of only 4.42 g, this cylindrical magnet is indispensable in miniature devices and wherever low weight is crucial.

Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 5.1 mm) using two-component 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 high repeatability of the connection.

Magnets NdFeB grade N38 are strong enough for 90% of applications in modeling and machine building, where extreme miniaturization with maximum force is not required. If you need even stronger magnets in the same volume (Ø5x30), 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 5 mm and height 30 mm. The key parameter here is the lifting capacity amounting to approximately 0.45 kg (force ~4.40 N), which, with such compact dimensions, proves the high grade of the NdFeB material. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 5 mm. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized diametrically if your project requires it.

Strengths as well as weaknesses of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:

They have unchanged lifting capacity, and over around ten years their attraction force decreases symbolically – ~1% (in testing),
They maintain their magnetic properties even under close interference source,
A magnet with a shiny gold surface has better aesthetics,
Magnetic induction on the working layer of the magnet is exceptional,
Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures reaching 230°C and above...
Possibility of accurate shaping as well as adapting to concrete needs,
Key role in modern technologies – they serve a role in magnetic memories, electromotive mechanisms, advanced medical instruments, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in miniature devices

Disadvantages

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also increases their durability
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
Due to limitations in realizing threads and complicated shapes in magnets, we propose using casing - magnetic mount.
Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

The specified lifting capacity refers to the peak performance, obtained under optimal environment, specifically:

with the use of a sheet made of low-carbon steel, guaranteeing maximum field concentration
whose transverse dimension is min. 10 mm
with an ground touching surface
under conditions of ideal adhesion (metal-to-metal)
during detachment in a direction perpendicular to the mounting surface
at temperature room level

Lifting capacity in practice – influencing factors

Bear in mind that the magnet holding may be lower depending on the following factors, in order of importance:

Gap (between the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Material composition – not every steel reacts the same. High carbon content worsen the attraction effect.
Surface finish – full contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
Temperature – heating the magnet results in weakening of induction. Check the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.

Warnings

Dust explosion hazard

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Nickel coating and allergies

Certain individuals experience a contact allergy to nickel, which is the common plating for neodymium magnets. Extended handling can result in an allergic reaction. It is best to use safety gloves.

Pinching danger

Large magnets can crush fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Keep away from electronics

Be aware: neodymium magnets generate a field that disrupts precision electronics. Maintain a separation from your phone, tablet, and GPS.

Medical implants

People with a heart stimulator have to maintain an absolute distance from magnets. The magnetism can stop the functioning of the implant.

Immense force

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

Threat to electronics

Data protection: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Adults only

Adult use only. Small elements can be swallowed, leading to severe trauma. Store out of reach of kids and pets.

Demagnetization risk

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

Fragile material

Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Wear goggles.

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

MW 5x30 / N38 - cylindrical magnet

Technical details - MW 5x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the magnet - technical parameters

Table 1: Static pull force (pull vs gap) - characteristics MW 5x30 / N38

Table 2: Sliding load (wall) MW 5x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - power losses MW 5x30 / N38

Table 5: Working in heat (stability) - thermal limit MW 5x30 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MW 5x30 / N38

Table 7: Protective zones (implants) - precautionary measures MW 5x30 / N38

Table 8: Dynamics (kinetic energy) - warning MW 5x30 / N38

Table 9: Coating parameters (durability) MW 5x30 / N38

Table 10: Construction data (Flux) MW 5x30 / N38

Table 11: Submerged application MW 5x30 / N38

1. Shear force

2. Plate thickness effect

3. Heat tolerance

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

Material specification

Environmental data

Magnet pull force

Magnetic Field

Other offers

MW 15x3 / N38 - cylindrical magnet

MPL 40x7x3 / N38 - lamellar magnet

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

UMT 12x20 red / N38 - board holder

Strengths as well as weaknesses of neodymium magnets.

Pros

Disadvantages

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

Lifting capacity in practice – influencing factors

Warnings

Dust explosion hazard

Nickel coating and allergies

Pinching danger

Keep away from electronics

Medical implants

Immense force

Threat to electronics

Adults only

Demagnetization risk

Fragile material

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs gap) - characteristics
MW 5x30 / N38

Table 2: Sliding load (wall)
MW 5x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 5x30 / N38

Table 4: Steel thickness (substrate influence) - power losses
MW 5x30 / N38

Table 5: Working in heat (stability) - thermal limit
MW 5x30 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MW 5x30 / N38

Table 7: Protective zones (implants) - precautionary measures
MW 5x30 / N38

Table 8: Dynamics (kinetic energy) - warning
MW 5x30 / N38

Table 9: Coating parameters (durability)
MW 5x30 / N38

Table 10: Construction data (Flux)
MW 5x30 / N38

Table 11: Submerged application
MW 5x30 / N38