Product available Ships today (order by 14:00)

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%]

view technical 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 about your choice?

Give us a call +48 22 499 98 98 if you prefer get in touch via request form the contact form page.
Specifications and form of neodymium magnets can be reviewed on our force calculator.

Order by 14:00 and we’ll ship today!

💡 Guide: How to choose a decent magnet and not get ripped off?

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!

Physical properties - 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 and environmental data

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: 210434-2026

Measurement Calculator

Magnet pull force

Force in kg

Newtons (N)

Force in lbs

Field Strength

Induction (Gs)

Induction (T)

Type a number in a box, and all other values change in real-time.

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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).

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.

The magnet is glued into a solid steel cup and sealed with epoxy resin, protecting it from water. The housing significantly increases lifespan but does not make the magnet completely indestructible. Maintenance (e.g., WD-40) prevents surface corrosion of the steel housing.

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. Using thread glue is crucial to not lose the magnet in silt.

This force applies to perfect adherence with the entire surface to a smooth, clean steel plate with a min. thickness of 20mm. 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). It is worth acting responsibly, cleaning up after yourself, and caring for the environment by removing fished-out scrap.

It is the best value because for the identical price, you obtain a premium mount that will last for many seasons than budget alternatives.

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

Many distributors use a trick by advertising the power measured only on the top hook. GOLD mounts focuses on honest data by stating the actual capabilities of the magnet, so you can be sure during real field work.

{Unlike anonymous sellers, Dhit provides expert advice and instant service assistance, which gives peace of mind after the purchase. Instead of risking with unknown goods, stick with proven gear that cares about the satisfaction of every user.

Pros as well as cons of neodymium magnets.

Strengths

Besides their exceptional strength, neodymium magnets offer the following advantages:

They do not lose magnetism, even during around ten years – the decrease in lifting capacity is only ~1% (theoretically),
They possess excellent resistance to weakening of magnetic properties due to external magnetic sources,
A magnet with a smooth gold surface has better aesthetics,
The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Possibility of detailed machining and modifying to complex applications,
Versatile presence in electronics industry – they are commonly used in HDD drives, electric drive systems, advanced medical instruments, and modern systems.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Limitations

Problematic aspects of neodymium magnets and ways of using them

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We suggest cover - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated forms.
Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Furthermore, small elements of these products are able to complicate diagnosis medical after entering the body.
Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Magnetic strength at its maximum – what it depends on?

Magnet power was defined for optimal configuration, taking into account:

using a sheet made of high-permeability steel, functioning as a magnetic yoke
whose thickness equals approx. 10 mm
with an ideally smooth touching surface
with direct contact (no paint)
for force acting at a right angle (pull-off, not shear)
at room temperature

Lifting capacity in real conditions – factors

Bear in mind that the magnet holding may be lower subject to elements below, in order of importance:

Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of maximum force).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
Steel type – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and lifting capacity.
Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost they can be stronger (up to a certain limit).

Lifting capacity was assessed with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets

Eye protection

Beware of splinters. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Physical harm

Big blocks can break fingers instantly. Do not place your hand between two strong magnets.

Allergic reactions

A percentage of the population have a contact allergy to nickel, which is the common plating for NdFeB magnets. Frequent touching can result in an allergic reaction. We suggest wear safety gloves.

GPS and phone interference

Remember: neodymium magnets generate a field that disrupts precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.

Maximum temperature

Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

Adults only

These products are not toys. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.

Do not drill into magnets

Dust produced during machining of magnets is combustible. Do not drill into magnets unless you are an expert.

Threat to electronics

Device Safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).

Life threat

Patients with a ICD should keep an large gap from magnets. The magnetism can disrupt the operation of the implant.

Caution required

Before use, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Be predictive.

Caution! Details about risks in the article: Safety of working with magnets.

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

Physical properties - 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

Material specification

Sustainability

Magnet pull force

Field Strength

Check out also products

SM 25x200 [2xM8] / N52 - magnetic separator

UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread

HH 20x7.2 [M4] / N38 - through hole magnetic holder

MW 25x2.5 / N38 - cylindrical magnet

Pros as well as cons of neodymium magnets.

Strengths

Limitations

Pull force analysis

Magnetic strength at its maximum – what it depends on?

Lifting capacity in real conditions – factors

H&S for magnets

Eye protection

Physical harm

Allergic reactions

GPS and phone interference

Maximum temperature

Adults only

Do not drill into magnets

Threat to electronics

Life threat

Caution required

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C