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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 technical data »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

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Call us now +48 888 99 98 98 otherwise send us a note by means of form the contact form page.
Parameters as well as shape of magnetic components can be calculated with our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

💡 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. Single-mount magnets are less versatile when dragging from a riverbank.
Choosing this holder brings many benefits:
Double active surface: Increases the chance of catching items.
Versatility: Possibility to use two mounts separately or together.
Double power potential: The combined power of two F200 GOLD holders is nearly 600 kg.
Better durability: Lower risk of mechanical damage.
Great price-performance ratio: An economical choice for serious magnet fishers.

For maximum efficiency, the Dual version is highly recommended.

Technical specification of the product - 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 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%
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: 210476-2026
Quick Unit Converter
Magnet pull force
Magnetic Field
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The best choice are magnets in thick, chrome-plated housings dedicated to water applications. Model UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 offers an optimal weight-to-pull force ratio, which is important for repeated throwing. For beginners, we recommend lighter single-sided models (F80-F200), for advanced users - heavier double-sided (Two-Side) ones.
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. Single-sided magnets are usually lighter and cheaper but less effective for long throws.
Our holders have a thick steel housing covered with an anti-corrosion layer (chrome, nickel, zinc). Despite solid construction, neodymium is a brittle material and can chip upon very strong impact (e.g., against concrete). After each fishing trip, we recommend rinsing the magnet with fresh water and drying it.
Most of our starter kits are complete and ready to use. We often add thread glue to secure the eyelet against unscrewing in water. 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. Dirt, rust, paint, and algae create a distance that weakens the magnet by even 70-80%. Therefore, to pull objects weighing 10kg from the water, a magnet with a capacity of 200-300kg is often needed.
If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). We recommend familiarizing yourself with current local regulations and heritage protection laws.
In contrast to many market offers, Dhit uses the highest quality materials, which translates into a better results during every trip to the water.
Consequently, despite the market price, the lifespan of the GOLD mount positions it a step above other brands.
Many sellers employ a tactic by promoting the pull force measured only on the top hook. Interestingly, in the web, there are virtually no recordings demonstrating the real side-pull force of competitor products on the side hook.
{Unlike competitors importing from China, Dhit provides expert advice and instant warranty help, which gives peace of mind after the transaction. Instead of risking with unknown goods, it is better to choose the market leader that cares about the happiness of searcher.

Pros and cons of Nd2Fe14B magnets.

Benefits

Apart from their strong magnetic energy, neodymium magnets have these key benefits:
  • Their power is durable, and after approximately 10 years it decreases only by ~1% (according to research),
  • They maintain their magnetic properties even under strong external field,
  • By covering with a shiny coating of silver, the element gains an professional look,
  • Neodymium magnets ensure maximum magnetic induction on a small area, which increases force concentration,
  • 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 molding and adaptation to custom solutions, NdFeB magnets can be modeled in a variety of geometric configurations, which amplifies use scope,
  • Huge importance in advanced technology sectors – they are commonly used in magnetic memories, electromotive mechanisms, medical equipment, also multitasking production systems.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Limitations

Cons of neodymium magnets: tips and applications.
  • Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises 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.
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • We recommend a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated forms.
  • Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Furthermore, small elements of these devices can disrupt the diagnostic process medical after entering the body.
  • Due to expensive raw materials, their price exceeds standard values,

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

The lifting capacity listed is a result of laboratory testing performed under specific, ideal conditions:
  • on a base made of structural steel, perfectly concentrating the magnetic field
  • with a thickness of at least 10 mm
  • with an ideally smooth touching surface
  • with direct contact (no coatings)
  • for force acting at a right angle (in the magnet axis)
  • at room temperature

Determinants of practical lifting force of a magnet

Effective lifting capacity impacted by working environment parameters, such as (from most important):
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Angle of force application – highest force is reached only during perpendicular pulling. The shear force of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Material type – the best choice is high-permeability steel. Stainless steels may attract less.
  • Base smoothness – the more even the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
  • Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Safe handling of neodymium magnets
Material brittleness

Neodymium magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets leads to them cracking into shards.

Warning for allergy sufferers

Studies show that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, avoid direct skin contact or choose versions in plastic housing.

Choking Hazard

NdFeB magnets are not toys. Eating multiple magnets may result in them attracting across intestines, which constitutes a critical condition and necessitates immediate surgery.

Powerful field

Use magnets with awareness. Their immense force can shock even professionals. Plan your moves and do not underestimate their power.

Threat to navigation

Note: rare earth magnets produce a field that confuses precision electronics. Maintain a separation from your phone, tablet, and navigation systems.

Heat warning

Keep cool. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Mechanical processing

Mechanical processing of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Physical harm

Big blocks can crush fingers in a fraction of a second. Do not put your hand betwixt two strong magnets.

Electronic devices

Intense magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Medical implants

Individuals with a ICD must maintain an large gap from magnets. The magnetic field can disrupt the functioning of the implant.

Security! Learn more about hazards in the article: Safety of working with magnets.