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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%]

check technical data »

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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Pick up the phone and ask +48 888 99 98 98 alternatively get in touch by means of request form through our site.
Strength as well as structure of magnets can be checked using our our magnetic calculator.

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!

Technical details - 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

Engineering data and GPSR

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: 210434-2026

Quick Unit Converter

Force (pull)

Force in kg

Force in lbs

Field Strength

Gauss (Gs)

Tesla (T)

Type a value into a field, to see the remaining units change in real-time.

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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 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. Side mounting is ideal for throwing from the shore, as the magnet drags flat along the bottom. 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). Maintenance (e.g., WD-40) prevents surface corrosion of the steel housing.

We offer both standalone holders and ready-made gift sets (depending on the selected option in the store). In the package, you will find everything needed: strong rope (e.g., 20m), gloves, and hardware. We recommend always securing the thread with glue or tightening the eyelet firmly before first use.

The capacity given in the name (e.g., 365.00 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.

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.

In contrast to other brands, Dhit uses the highest quality materials, which translates into a clear advantage during treasure hunting.

As a result, despite the affordable cost, the mechanical durability of the Dhit product puts it a step above the competition.

Many sellers use a trick by advertising the power measured only on the vertical mount. Crucially, in the web, there are virtually no videos demonstrating the real side-pull force of competitor products on the side hook.

{By choosing Dhit, you support Polish engineering that knows the conditions of our waters. Every product is checked before shipping, which ensures that you receive equipment of the highest quality.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

They do not lose power, even over around ten years – the decrease in strength is only ~1% (according to tests),
Magnets effectively resist against demagnetization caused by foreign field sources,
Thanks to the shimmering finish, the surface of nickel, gold-plated, or silver-plated gives an elegant appearance,
Neodymium magnets achieve maximum magnetic induction on a small area, which ensures high operational effectiveness,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Due to the ability of flexible molding and adaptation to custom solutions, NdFeB magnets can be modeled in a variety of forms and dimensions, which increases their versatility,
Key role in modern industrial fields – they find application in data components, brushless drives, medical equipment, as well as multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Limitations

Characteristics of disadvantages of neodymium magnets: application proposals

At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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
They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in creating nuts and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Additionally, tiny parts of these products are able to be problematic in diagnostics medical after entering the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Maximum lifting capacity of the magnet – what contributes to it?

Information about lifting capacity is the result of a measurement for the most favorable conditions, assuming:

using a sheet made of low-carbon steel, serving as a circuit closing element
possessing a massiveness of minimum 10 mm to avoid saturation
characterized by lack of roughness
under conditions of no distance (metal-to-metal)
under vertical application of breakaway force (90-degree angle)
in temp. approx. 20°C

Practical aspects of lifting capacity – factors

Real force is affected by working environment parameters, mainly (from most important):

Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
Material composition – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

H&S for magnets

Handling guide

Handle magnets consciously. Their immense force can shock even experienced users. Be vigilant and respect their power.

Magnet fragility

Beware of splinters. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

Crushing force

Large magnets can crush fingers in a fraction of a second. Under no circumstances put your hand between two strong magnets.

Maximum temperature

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

Threat to electronics

Powerful magnetic fields can erase data on payment cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.

Avoid contact if allergic

Some people suffer from a hypersensitivity to Ni, which is the common plating for neodymium magnets. Extended handling can result in dermatitis. We strongly advise use protective gloves.

Warning for heart patients

Warning for patients: Powerful magnets disrupt electronics. Keep at least 30 cm distance or request help to handle the magnets.

Fire warning

Mechanical processing of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Danger to the youngest

Only for adults. Tiny parts can be swallowed, leading to severe trauma. Keep away from kids and pets.

Compass and GPS

Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your phone, tablet, and navigation systems.

Important! More info about hazards in the article: Magnet Safety Guide.

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

Technical details - 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

Elemental analysis

Sustainability

Force (pull)

Field Strength

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UMGGW 34x8 [M4] GW / N38 - magnetic holder rubber internal thread

MPL 50x30x4 / N38 - lamellar magnet

MW 70x30 / N38 - cylindrical magnet

UMC 32x11/3x8 / N38 - cylindrical magnetic holder

Strengths and weaknesses of Nd2Fe14B magnets.

Pros

Limitations

Lifting parameters

Maximum lifting capacity of the magnet – what contributes to it?

Practical aspects of lifting capacity – factors

H&S for magnets

Handling guide

Magnet fragility

Crushing force

Maximum temperature

Threat to electronics

Avoid contact if allergic

Warning for heart patients

Fire warning

Danger to the youngest

Compass and GPS

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Strengths and weaknesses of Nd₂Fe₁₄B magnets.