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Grips for underwater searches

Begin your hobby with treasure salvaging! Our specialized grips (F200, F400) provide grip certainty and immense power. Stainless steel construction and strong lines will perform in rivers and lakes.

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Reliable solutions for fixing non-invasive. Threaded mounts (M8, M10, M12) guarantee quick improvement of work on production halls. Perfect for installing lighting, sensors and banners.

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MW 6x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010092

GTIN/EAN: 5906301810919

5.00

Diameter Ø

6 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

0.42 g

Magnetization Direction

↑ axial

Load capacity

0.86 kg / 8.43 N

Magnetic Induction

343.37 mT / 3434 Gs

Coating

[NiCuNi] Nickel

0.246 with VAT / pcs + price for transport

0.200 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 6x2 / N38 - cylindrical magnet

Specification / characteristics - MW 6x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010092
GTIN/EAN 5906301810919
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 6 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 0.42 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.86 kg / 8.43 N
Magnetic Induction ~ ? 343.37 mT / 3434 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 6x2 / 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

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 modeling of the product - data

These values constitute the result of a mathematical calculation. Values are based on algorithms for the material Nd2Fe14B. Real-world parameters might slightly differ from theoretical values. Treat these calculations as a reference point when designing systems.

Table 1: Static force (force vs distance) - interaction chart
MW 6x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3430 Gs
343.0 mT
0.86 kg / 1.90 LBS
860.0 g / 8.4 N
weak grip
1 mm 2423 Gs
242.3 mT
0.43 kg / 0.95 LBS
429.2 g / 4.2 N
weak grip
2 mm 1521 Gs
152.1 mT
0.17 kg / 0.37 LBS
169.0 g / 1.7 N
weak grip
3 mm 932 Gs
93.2 mT
0.06 kg / 0.14 LBS
63.5 g / 0.6 N
weak grip
5 mm 382 Gs
38.2 mT
0.01 kg / 0.02 LBS
10.7 g / 0.1 N
weak grip
10 mm 76 Gs
7.6 mT
0.00 kg / 0.00 LBS
0.4 g / 0.0 N
weak grip
15 mm 26 Gs
2.6 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
weak grip
20 mm 12 Gs
1.2 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
weak grip
30 mm 4 Gs
0.4 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
weak grip
50 mm 1 Gs
0.1 mT
0.00 kg / 0.00 LBS
0.0 g / 0.0 N
weak grip

Table 2: Vertical capacity (wall)
MW 6x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.17 kg / 0.38 LBS
172.0 g / 1.7 N
1 mm Stal (~0.2) 0.09 kg / 0.19 LBS
86.0 g / 0.8 N
2 mm Stal (~0.2) 0.03 kg / 0.07 LBS
34.0 g / 0.3 N
3 mm Stal (~0.2) 0.01 kg / 0.03 LBS
12.0 g / 0.1 N
5 mm Stal (~0.2) 0.00 kg / 0.00 LBS
2.0 g / 0.0 N
10 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
15 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 LBS
0.0 g / 0.0 N

Table 3: Wall mounting (sliding) - vertical pull
MW 6x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.26 kg / 0.57 LBS
258.0 g / 2.5 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.17 kg / 0.38 LBS
172.0 g / 1.7 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.09 kg / 0.19 LBS
86.0 g / 0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.43 kg / 0.95 LBS
430.0 g / 4.2 N

Table 4: Steel thickness (substrate influence) - sheet metal selection
MW 6x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
0.09 kg / 0.19 LBS
86.0 g / 0.8 N
1 mm
25%
0.22 kg / 0.47 LBS
215.0 g / 2.1 N
2 mm
50%
0.43 kg / 0.95 LBS
430.0 g / 4.2 N
3 mm
75%
0.65 kg / 1.42 LBS
645.0 g / 6.3 N
5 mm
100%
0.86 kg / 1.90 LBS
860.0 g / 8.4 N
10 mm
100%
0.86 kg / 1.90 LBS
860.0 g / 8.4 N
11 mm
100%
0.86 kg / 1.90 LBS
860.0 g / 8.4 N
12 mm
100%
0.86 kg / 1.90 LBS
860.0 g / 8.4 N

Table 5: Thermal resistance (stability) - thermal limit
MW 6x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.86 kg / 1.90 LBS
860.0 g / 8.4 N
OK
40 °C -2.2% 0.84 kg / 1.85 LBS
841.1 g / 8.3 N
OK
60 °C -4.4% 0.82 kg / 1.81 LBS
822.2 g / 8.1 N
80 °C -6.6% 0.80 kg / 1.77 LBS
803.2 g / 7.9 N
100 °C -28.8% 0.61 kg / 1.35 LBS
612.3 g / 6.0 N

Table 6: Two magnets (attraction) - field range
MW 6x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.05 kg / 4.52 LBS
4 944 Gs
0.31 kg / 0.68 LBS
308 g / 3.0 N
N/A
1 mm 1.52 kg / 3.34 LBS
5 900 Gs
0.23 kg / 0.50 LBS
228 g / 2.2 N
1.37 kg / 3.01 LBS
~0 Gs
2 mm 1.02 kg / 2.26 LBS
4 847 Gs
0.15 kg / 0.34 LBS
154 g / 1.5 N
0.92 kg / 2.03 LBS
~0 Gs
3 mm 0.65 kg / 1.44 LBS
3 869 Gs
0.10 kg / 0.22 LBS
98 g / 1.0 N
0.59 kg / 1.29 LBS
~0 Gs
5 mm 0.25 kg / 0.54 LBS
2 379 Gs
0.04 kg / 0.08 LBS
37 g / 0.4 N
0.22 kg / 0.49 LBS
~0 Gs
10 mm 0.03 kg / 0.06 LBS
764 Gs
0.00 kg / 0.01 LBS
4 g / 0.0 N
0.02 kg / 0.05 LBS
~0 Gs
20 mm 0.00 kg / 0.00 LBS
153 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
50 mm 0.00 kg / 0.00 LBS
12 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
60 mm 0.00 kg / 0.00 LBS
7 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
70 mm 0.00 kg / 0.00 LBS
5 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
80 mm 0.00 kg / 0.00 LBS
3 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
90 mm 0.00 kg / 0.00 LBS
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs
100 mm 0.00 kg / 0.00 LBS
2 Gs
0.00 kg / 0.00 LBS
0 g / 0.0 N
0.00 kg / 0.00 LBS
~0 Gs

Table 7: Protective zones (electronics) - warnings
MW 6x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 3.0 cm
Hearing aid 10 Gs (1.0 mT) 2.5 cm
Mechanical watch 20 Gs (2.0 mT) 2.0 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Car key 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm

Table 8: Collisions (kinetic energy) - collision effects
MW 6x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 45.65 km/h
(12.68 m/s)
0.03 J
30 mm 79.04 km/h
(21.96 m/s)
0.10 J
50 mm 102.04 km/h
(28.35 m/s)
0.17 J
100 mm 144.31 km/h
(40.09 m/s)
0.34 J

Table 9: Corrosion resistance
MW 6x2 / 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)

Table 10: Electrical data (Flux)
MW 6x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 1 029 Mx 10.3 µWb
Pc Coefficient 0.44 Low (Flat)

Table 11: Physics of underwater searching
MW 6x2 / N38

Environment Effective steel pull Effect
Air (land) 0.86 kg Standard
Water (riverbed) 0.98 kg
(+0.12 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
1. Wall mount (shear)

*Caution: On a vertical wall, the magnet holds only approx. 20-30% of its max power.

2. Steel thickness impact

*Thin steel (e.g. computer case) significantly reduces the holding force.

3. Heat tolerance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.44

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 Pc (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 Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology
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%
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: 010092-2026
Magnet Unit Converter
Force (pull)

Magnetic Field

Other deals

The offered product is an incredibly powerful cylinder magnet, made from advanced NdFeB material, which, with dimensions of Ø6x2 mm, guarantees maximum efficiency. The MW 6x2 / N38 model features an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 0.86 kg), this product is available off-the-shelf from our warehouse in Poland, ensuring rapid order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building generators, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the high power of 8.43 N with a weight of only 0.42 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Due to the delicate structure of the ceramic sinter, we absolutely advise against force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure long-term durability in automation, anaerobic resins are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø6x2), 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 6 mm and height 2 mm. The value of 8.43 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.42 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 6 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Apart from their notable holding force, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
  • Neodymium magnets are characterized by extremely resistant to demagnetization caused by external field sources,
  • By applying a reflective layer of nickel, the element acquires an nice look,
  • Neodymium magnets deliver maximum magnetic induction on a contact point, which allows for strong attraction,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of detailed machining and modifying to specific needs,
  • Universal use in modern industrial fields – they are commonly used in data components, electromotive mechanisms, precision medical tools, also industrial machines.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

Problematic aspects of neodymium magnets: application proposals
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
  • Limited ability of creating threads in the magnet and complex forms - preferred is casing - mounting mechanism.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, tiny parts of these magnets can be problematic in diagnostics medical after entering the body.
  • With large orders the cost of neodymium magnets is a challenge,

Holding force characteristics

Highest magnetic holding forcewhat affects it?

Breakaway force is the result of a measurement for ideal contact conditions, including:
  • with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
  • whose thickness equals approx. 10 mm
  • with a plane free of scratches
  • with zero gap (without paint)
  • under perpendicular force direction (90-degree angle)
  • at ambient temperature room level

Determinants of practical lifting force of a magnet

Holding efficiency is affected by specific conditions, including (from most important):
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength 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 penetrates through instead of generating force.
  • Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
  • Plate texture – smooth surfaces ensure maximum contact, which increases force. Rough surfaces weaken the grip.
  • Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the holding force.

Safe handling of NdFeB magnets
Fire warning

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Adults only

Adult use only. Small elements pose a choking risk, causing intestinal necrosis. Keep away from children and animals.

Protect data

Avoid bringing magnets close to a purse, computer, or TV. The magnetism can permanently damage these devices and wipe information from cards.

GPS Danger

A powerful magnetic field interferes with the operation of compasses in smartphones and GPS navigation. Do not bring magnets near a device to avoid damaging the sensors.

Immense force

Be careful. Rare earth magnets attract from a distance and connect with huge force, often faster than you can move away.

Do not overheat magnets

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

Sensitization to coating

It is widely known that nickel (standard magnet coating) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands or select coated magnets.

Implant safety

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

Bodily injuries

Big blocks can break fingers instantly. Under no circumstances put your hand between two strong magnets.

Protective goggles

NdFeB magnets are ceramic materials, meaning they are very brittle. Collision of two magnets will cause them shattering into small pieces.

Attention! More info about hazards in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98