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

UMP 75x25 [M10x3] GW F200 GOLD DUAL Lina / N42 - search holder - ujęcie 2

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

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

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%]

product 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

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Call us +48 888 99 98 98 if you prefer send us a note through form the contact page.
Strength as well as shape of magnets can be calculated on our online calculation tool.

Order by 14:00 and we’ll ship 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 Dual version features two threaded sockets for the eyebolt, whereas the standard one has only one. You can mount the eyelet on the side for shore casting or on top for bridge fishing. Single-mount magnets are less versatile when dragging from a riverbank.

Selecting the Dual version offers several advantages:
Double active surface: More space to attract objects.
Versatility: Possibility to use two mounts separately or together.
Double power potential: Theoretically, it offers double the attracting area.
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

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

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%

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

Quick Unit Converter

Magnet pull force

Kilograms (kg)

Force (N)

lbs

Magnetic Induction

Gauss (Gs)

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It is worth betting on proven F200, F300, or F550 models from our offer, which guarantee real power. It is equipment that can handle pulling heavy and silted objects from the river bottom. For beginners, we recommend lighter single-sided models (F80-F200), for advanced users - heavier double-sided (Two-Side) ones.

Double-sided holders (Two-Side) have two active magnetic surfaces and two mounting holes. 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). Avoid throwing the magnet against bridge pillars or hard obstacles. 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. 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.

It is a technical parameter defining perpendicular break force, not the weight of an object in water. In a river, objects are often rusty, silted, or irregular in shape (e.g., pipes), which drastically reduces grip strength. Therefore, to pull objects weighing 10kg from the water, a magnet with a capacity of 200-300kg is often needed.

Searches are allowed as long as you do not interfere with archaeological sites or search for weapons. We recommend familiarizing yourself with current local regulations and heritage protection laws.

By selecting Dhit GOLD mounts, you receive a higher quality standard and true magnetic power for the average cost.

The GOLD series feature a robust construction that provides a true shield for the brittle neodymium.

It is worth remembering that the same magnet used by the lateral point can actually show as little as a fraction of strength instead of the promised 200 kg. The Dhit brand guarantees full transparency by providing the real parameters of the gear, so you avoid disappointment during treasure hunting.

{In contrast to anonymous sellers, Dhit provides full support and instant service assistance, which gives peace of mind after the transaction. Don't risk it with unknown goods, it is better to choose proven gear that cares about the happiness of every user.

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 approximately ten years it decreases only by ~1% (theoretically),
They show high resistance to demagnetization induced by external disturbances,
The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
Magnets exhibit impressive magnetic induction on the outer side,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Thanks to flexibility in forming and the capacity to modify to client solutions,
Wide application in electronics industry – they serve a role in magnetic memories, brushless drives, precision medical tools, and multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in compact constructions

Limitations

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
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 complex forms in magnets, we recommend using a housing - magnetic mechanism.
Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small elements of these products are able to disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Detachment force of the magnet in optimal conditions – what it depends on?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:

on a plate made of structural steel, perfectly concentrating the magnetic flux
whose thickness equals approx. 10 mm
characterized by smoothness
under conditions of gap-free contact (surface-to-surface)
for force applied at a right angle (pull-off, not shear)
at conditions approx. 20°C

Practical lifting capacity: influencing factors

In practice, the real power depends on a number of factors, listed from the most important:

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
Material type – ideal substrate is high-permeability steel. Stainless steels may attract less.
Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
Temperature – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet and the plate reduces the holding force.

H&S for magnets

Nickel allergy

Some people have a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact can result in an allergic reaction. It is best to use safety gloves.

Risk of cracking

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Implant safety

Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Flammability

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Demagnetization risk

Keep cool. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, look for HT versions (H, SH, UH).

Caution required

Be careful. Rare earth magnets act from a long distance and connect with huge force, often quicker than you can react.

Crushing force

Risk of injury: The pulling power is so immense that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.

Adults only

Always store magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are tragic.

Electronic devices

Avoid bringing magnets near a wallet, computer, or TV. The magnetic field can permanently damage these devices and wipe information from cards.

GPS and phone interference

Remember: neodymium magnets produce a field that disrupts precision electronics. Maintain a safe distance from your phone, tablet, and GPS.

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

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

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

Magnetic properties of material N42

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Sustainability

Magnet pull force

Magnetic Induction

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SM 25x325 [2xM8] / N52 - magnetic separator

MPL 20x10x2 / N38 - lamellar magnet

MW 12x6 / N38 - cylindrical magnet

Advantages as well as disadvantages of Nd2Fe14B magnets.

Strengths

Limitations

Holding force characteristics

Detachment force of the magnet in optimal conditions – what it depends on?

Practical lifting capacity: influencing factors

H&S for magnets

Nickel allergy

Risk of cracking

Implant safety

Flammability

Demagnetization risk

Caution required

Crushing force

Adults only

Electronic devices

GPS and phone interference

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.