Product available Ships tomorrow

UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - 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 210434

GTIN/EAN: 5906301814092

5.00

Diameter Ø

75 mm [±1 mm]

Height

25 mm [±1 mm]

Weight

900 g

Load capacity

365.00 kg / 3579.43 N

Coating

[NiCuNi] Nickel

Magnetic Flux

~ 10 000 Gauss [±5%]

see properties »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

bulk discounts:

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229.27 ZŁ

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Pick up the phone and ask +48 22 499 98 98 alternatively let us know through request form our website.
Strength and form of magnetic components can be reviewed using our modular calculator.

Same-day shipping 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!

Product card - UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - search holder

Specification / characteristics - UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - search holder

properties

properties	values
Cat. no.	210434
GTIN/EAN	5906301814092
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	900 g
Load capacity ~ ?	365.00 kg / 3579.43 N
Coating	[NiCuNi] Nickel
Series	PLATINUM
Holder Type	2 sided
Material Type	Structural steel S235 (ferrous)
Magnetic Flux	~ 10 000 Gauss [±5%]
Rope Length	25 m
Rope Capacity	~ 1595 kg
Rope Diameter	Ø 8 mm
Gloves	1 pair
Size/Mount Quantity	3xM10
Manufacturing Tolerance	±1 mm

Magnetic properties of material N52

Specification / characteristics UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - search holder

properties	values	units
remenance Br [min. - max.] ?	14.2-14.7	kGs
remenance Br [min. - max.] ?	1420-1470	mT
coercivity bHc ?	10.8-12.5	kOe
coercivity bHc ?	860-995	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	48-53	BH max MGOe
energy density [min. - max.] ?	380-422	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

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%

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: 210434-2026

Measurement Calculator

Pulling force

Force in kg

Newtons (N)

Pounds (lbs)

Field Strength

Induction (T)

Input your value in a single slot to see the conversion in the other units at once.

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The best choice are magnets in thick, chrome-plated housings dedicated to water applications. Model UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 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).

Double-sided holders (Two-Side) have two active magnetic surfaces and two mounting holes. Top mounting works well when fishing from a bridge, pier, or well (vertical technique). 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.

Most of our starter kits are complete and ready to use. A full set usually contains: magnet, polypropylene rope with appropriate strength, protective gloves, hook, and carabiner. We recommend always securing the thread with glue or tightening the eyelet firmly before first use.

It is a technical parameter defining perpendicular break force, not the weight of an object in water. Dirt, rust, paint, and algae create a distance that weakens the magnet by even 70-80%. A large power reserve is essential in real search conditions.

If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). Magnet fishing is an eco-friendly hobby if you clean the river from trash and scrap.

Unlike other brands, Dhit does not cut corners on components, which translates into a better results during treasure hunting.

Dhit GOLD mounts utilize heavy-duty, thick-walled steel that acts as a real armor for the magnetic core.

You should know that the identical magnet used by the side hook can actually show as little as 40 kg of power instead of the declared 200 kg. Interestingly, in the web, there are virtually no recordings demonstrating the actual strength of other brands on the lateral attachment.

{By choosing GOLD mounts, you support Polish engineering that knows the conditions of our waters. Don't risk it with random brands, stick with the market leader that ensures the satisfaction of every user.

Strengths and weaknesses of rare earth magnets.

Strengths

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They do not lose strength, even after around 10 years – the decrease in lifting capacity is only ~1% (theoretically),
They retain their magnetic properties even under strong external field,
In other words, due to the metallic layer of gold, the element is aesthetically pleasing,
The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to modularity in constructing and the capacity to adapt to complex applications,
Universal use in innovative solutions – they are utilized in computer drives, electric drive systems, diagnostic systems, as well as technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in miniature devices

Limitations

What to avoid - cons of neodymium magnets and proposals for their use:

To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases 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 as well as 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
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited ability of creating threads in the magnet and complicated forms - recommended is cover - magnetic holder.
Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to disrupt the diagnostic process medical after entering the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Magnetic strength at its maximum – what contributes to it?

The load parameter shown represents the peak performance, measured under optimal environment, namely:

on a plate made of structural steel, optimally conducting the magnetic field
whose transverse dimension equals approx. 10 mm
with a surface perfectly flat
with total lack of distance (no paint)
for force applied at a right angle (pull-off, not shear)
at ambient temperature room level

What influences lifting capacity in practice

In real-world applications, the actual lifting capacity depends on a number of factors, presented from most significant:

Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of maximum force).
Steel thickness – too thin sheet does not close the flux, causing part of the flux to be wasted to the other side.
Steel type – mild steel gives the best results. Alloy steels decrease magnetic properties and holding force.
Surface finish – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
Temperature – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate lowers the holding force.

Precautions when working with NdFeB magnets

Allergic reactions

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, immediately stop working with magnets and use protective gear.

Safe distance

Data protection: Strong magnets can damage data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Operating temperature

Keep cool. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Impact on smartphones

Navigation devices and smartphones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Shattering risk

Despite the nickel coating, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Dust is flammable

Powder produced during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Pinching danger

Risk of injury: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Use thick gloves.

Danger to the youngest

Absolutely keep magnets away from children. Choking hazard is high, and the effects of magnets connecting inside the body are life-threatening.

Health Danger

Warning for patients: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.

Immense force

Handle magnets consciously. Their huge power can surprise even experienced users. Plan your moves and do not underestimate their force.

Security! More info about risks in the article: Magnet Safety Guide.

UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - search holder

Product card - UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - search holder

Magnetic properties of material N52

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Ecology and recycling (GPSR)

Pulling force

Field Strength

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HH 16x5.3 [M3] / N38 - through hole magnetic holder

UMGGZ 66x8.5 [M8] GZ / N38 - rubber magnetic holder external thread

BM 950x180x70 [4x M8] - magnetic beam

SM 32x275 [2xM8] / N42 - magnetic separator

Strengths and weaknesses of rare earth magnets.

Strengths

Limitations

Lifting parameters

Magnetic strength at its maximum – what contributes to it?

What influences lifting capacity in practice

Precautions when working with NdFeB magnets

Allergic reactions

Safe distance

Operating temperature

Impact on smartphones

Shattering risk

Dust is flammable

Pinching danger

Danger to the youngest

Health Danger

Immense force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C