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UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 - search holder

search holder

Catalog no 210476

GTIN/EAN: 5906301814139

5.00

Diameter Ø

75 mm [±1 mm]

Height

25 mm [±1 mm]

Weight

1800 g

Load capacity

601.00 kg / 5893.80 N

Coating

[NiCuNi] Nickel

Magnetic Flux

~ 20 000 Gauss [±5%]

view specifications »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety
Not sure where to buy?

Call us +48 22 499 98 98 otherwise drop us a message through our online form our website.
Lifting power as well as structure of a magnet can be analyzed on our modular calculator.

Same-day processing for orders placed before 14:00.

💡 Check why professionals choose Dhit over cheap substitutes

Don't be fooled by amateur online tests – go for certified quality and specific parameters that guarantee success:

  • 📏 Magnet thickness in the casing (min. 10mm) – This is what matters most! Thin magnets are weak. Thanks to the 1cm thickness of N52 neodymium, your magnet "sees" metal even through thick rust and mud.
  • 🛡️ Armored protection (Black Epoxy) – Forget about rust. This coating doesn't chip when hitting rocks and protects the magnet in water much better than regular nickel, which fails quickly.
  • 🧲 Eyelets that don't steal power – Made of special non-magnetic steel, so they don't stick to the magnet and don't block the force. Important: mount only one eyelet at a time! Using 3 at once is a mistake that weakens the magnet.
  • 🧶 Certified rope (min. 8mm) – You gain the certainty that your gear won't stay at the bottom. It's thick and comfortable, so it doesn't cut your fingers when pulling out heavy scrap metal.
  • 🚀 Our advantage: We are the only ones combining the strongest N52 neodymium (10mm thick) with non-magnetic eyelets. This is real power and durability you won't find anywhere else.

Invest in solid equipment and enjoy the results!

The main difference lies in the presence of two mounting holes (top and side). This enables effective dragging along the bottom as well as dipping. Standard single holders are mainly intended for vertical dipping.
Here is why the Double version is a great choice:
Larger contact area: More space to attract objects.
Versatility: Possibility to use two mounts separately or together.
Greater combined force: The combined power of two F200 GOLD holders is nearly 600 kg.
Robustness: Solid construction.
Great price-performance ratio: An economical choice for serious magnet fishers.

For maximum efficiency, the Dual version is highly recommended.

Technical specification - UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 - search holder

Specification / characteristics - UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 - search holder

properties
properties values
Cat. no. 210476
GTIN/EAN 5906301814139
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 75 mm [±1 mm]
Height 25 mm [±1 mm]
Weight 1800 g
Load capacity ~ ? 601.00 kg / 5893.80 N
Coating [NiCuNi] Nickel
Series GOLD
Holder Type 4 sided
Material Type Structural steel S235 (ferrous)
Magnetic Flux ~ 20 000 Gauss [±5%]
Rope Length 25 m
Rope Capacity ~ 1595 kg
Rope Diameter Ø 8 mm
Gloves 1 pair
Size/Mount Quantity 4xM10
Manufacturing Tolerance ±1 mm

Magnetic properties of material N42

Specification / characteristics UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 - search holder
properties values units
remenance Br [min. - max.] ? 12.9-13.2 kGs
remenance Br [min. - max.] ? 1290-1320 mT
coercivity bHc ? 10.8-12.0 kOe
coercivity bHc ? 860-955 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 40-42 BH max MGOe
energy density [min. - max.] ? 318-334 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
Technical and environmental data
Chemical composition
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: 210476-2026
Magnet Unit Converter
Magnet pull force
Field Strength
Put your value in a single slot to see the conversion for the other units at once.

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For underwater searches, we recommend specialized holders from the GOLD series, designed for working in difficult conditions. Model UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 offers an optimal weight-to-pull force ratio, which is important for repeated throwing. The choice depends on whether you plan to throw from the shore (double-sided) or from a bridge (single-sided).
The double-sided model attracts from above and below, increasing the chance of hooking a find. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. The double-sided version increases search efficiency by 100%.
Our holders have a thick steel housing covered with an anti-corrosion layer (chrome, nickel, zinc). The housing significantly increases lifespan but does not make the magnet completely indestructible. After each fishing trip, we recommend rinsing the magnet with fresh water and drying it.
Check the product title and description to see if you are buying just the magnet or the XL set. A full set usually contains: magnet, polypropylene rope with appropriate strength, protective gloves, hook, and carabiner. Using thread glue is crucial to not lose the magnet in silt.
The capacity given in the name (e.g., 601.00 kg) is the maximum value measured in laboratory conditions. The magnet may slide on round elements (bicycle frame) due to the small contact area. Therefore, to pull objects weighing 10kg from the water, a magnet with a capacity of 200-300kg is often needed.
Possessing and using a neodymium magnet to clean the bottom is generally legal, provided you are not searching for artifacts protected by law. It is worth acting responsibly, cleaning up after yourself, and caring for the environment by removing fished-out scrap.
By selecting Dhit GOLD mounts, you get a product of a significantly higher standard and true magnetic power for the same market price.
Dhit GOLD mounts utilize a robust construction that acts as a real armor for the brittle neodymium.
Many distributors employ a tactic by promoting the power measured exclusively on the vertical mount. Crucially, in the web, it is hard to find videos demonstrating the real side-pull force of other brands on the side hook.
{Unlike competitors importing from China, Dhit provides full support and instant service assistance, which gives peace of mind after the transaction. Every product is individually inspected before shipping, which guarantees that you receive equipment of the highest quality.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Besides their immense pulling force, neodymium magnets offer the following advantages:
  • Their strength remains stable, and after around 10 years it drops only by ~1% (theoretically),
  • They do not lose their magnetic properties even under close interference source,
  • By covering with a lustrous layer of gold, the element presents an elegant look,
  • Neodymium magnets achieve maximum magnetic induction on a contact point, which allows for strong attraction,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
  • In view of the option of accurate forming and adaptation to custom requirements, neodymium magnets can be produced in a broad palette of forms and dimensions, which increases their versatility,
  • Huge importance in electronics industry – they are used in magnetic memories, motor assemblies, advanced medical instruments, as well as industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in small systems

Limitations

Characteristics of disadvantages of neodymium magnets: application proposals
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • Due to limitations in creating threads and complicated shapes in magnets, we recommend using casing - magnetic mount.
  • Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these products can disrupt the diagnostic process medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Detachment force of the magnet in optimal conditions – what contributes to it?

The load parameter shown concerns the limit force, measured under optimal environment, namely:
  • with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with an ground touching surface
  • under conditions of ideal adhesion (metal-to-metal)
  • under axial force vector (90-degree angle)
  • in temp. approx. 20°C

Practical aspects of lifting capacity – factors

In real-world applications, the actual holding force results from several key aspects, ranked from most significant:
  • Gap (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
  • Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Material composition – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
  • Surface finish – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Warnings
Magnets are brittle

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

This is not a toy

Only for adults. Tiny parts can be swallowed, causing intestinal necrosis. Store out of reach of kids and pets.

Combustion hazard

Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.

Allergy Warning

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, immediately stop handling magnets and wear gloves.

GPS and phone interference

A powerful magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Do not bring magnets near a device to prevent breaking the sensors.

Medical implants

Warning for patients: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Protect data

Do not bring magnets near a purse, computer, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.

Crushing risk

Protect your hands. Two powerful magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Permanent damage

Do not overheat. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

Handling rules

Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Caution! Need more info? Check our post: Why are neodymium magnets dangerous?