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

Product available Ships today (order by 14:00)

UMP 75x25 [M10x3] GW F200 GOLD DUAL / 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 210452

GTIN/EAN: 5906301814122

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%]

see parameters »

245.00 ZŁ with VAT / pcs + price for transport

199.19 ZŁ net + 23% VAT / pcs

bulk discounts:

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Do you have problems deciding?

Give us a call +48 888 99 98 98 otherwise contact us through our online form the contact page.
Force and appearance of magnetic components can be reviewed on 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!

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

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

properties

properties	values
Cat. no.	210452
GTIN/EAN	5906301814122
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	2 sided
Material Type	Structural steel S235 (ferrous)
Magnetic Flux	~ 20 000 Gauss [±5%]
Size/Mount Quantity	4xM10
Manufacturing Tolerance	±1 mm

Magnetic properties of material N42

Specification / characteristics UMP 75x25 [M10x3] GW F200 GOLD DUAL / 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

Engineering data and GPSR

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%

Environmental data

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: 210452-2026

Measurement Calculator

Force (pull)

Kilograms (kg)

Newtons (N)

lbs

Magnetic Induction

Induction (Gs)

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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 GOLD DUAL / 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.

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). The housing significantly increases lifespan but does not make the magnet completely indestructible. After each fishing trip, we recommend rinsing the magnet with fresh water and drying it.

We offer both standalone holders and ready-made gift sets (depending on the selected option in the store). 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.

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.

Searches are allowed as long as you do not interfere with archaeological sites or search for weapons. Magnet fishing is an eco-friendly hobby if you clean the river from trash and scrap.

It is the best value because for the identical price, you buy professional-grade equipment that will last for many seasons than budget alternatives.

Dhit GOLD mounts feature a robust construction that acts as a real armor for the magnetic core.

You should know that the same magnet used by the lateral point often has only 40 kg of power instead of the declared 200 kg. Interestingly, in the entire internet, there are virtually no recordings testing the real side-pull force of competitor products on the lateral attachment.

{Unlike anonymous sellers, Dhit provides full support and real service assistance, which is crucial after the purchase. Every mount is individually inspected before shipping, which guarantees that you receive equipment of the defect-free.

Pros as well as cons of rare earth magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:

They do not lose strength, even over approximately 10 years – the decrease in power is only ~1% (based on measurements),
They feature excellent resistance to weakening of magnetic properties when exposed to external fields,
The use of an refined layer of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the surface of the magnet is strong,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to freedom in forming and the ability to modify to unusual requirements,
Wide application in electronics industry – they find application in HDD drives, electromotive mechanisms, medical devices, and technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in miniature devices

Limitations

Disadvantages of neodymium magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They oxidize in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Limited possibility of creating threads in the magnet and complex forms - preferred is cover - magnetic holder.
Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. Additionally, small elements of these products can disrupt the diagnostic process medical in case of swallowing.
With large orders the cost of neodymium magnets can be a barrier,

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Holding force of 601.00 kg is a measurement result executed under specific, ideal conditions:

on a plate made of mild steel, effectively closing the magnetic flux
whose transverse dimension reaches at least 10 mm
with a surface cleaned and smooth
under conditions of ideal adhesion (metal-to-metal)
under vertical application of breakaway force (90-degree angle)
in neutral thermal conditions

Determinants of practical lifting force of a magnet

Effective lifting capacity is affected by working environment parameters, mainly (from most important):

Clearance – existence of foreign body (paint, tape, gap) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Load vector – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
Surface quality – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under shearing force the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate lowers the holding force.

Safety rules for work with neodymium magnets

Fragile material

Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Handling rules

Be careful. Neodymium magnets attract from a long distance and snap with massive power, often faster than you can move away.

Warning for allergy sufferers

Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. For allergy sufferers, refrain from direct skin contact and choose coated magnets.

Power loss in heat

Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Swallowing risk

Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Store away from children and animals.

Keep away from electronics

An intense magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.

Electronic hazard

Device Safety: Strong magnets can damage data carriers and delicate electronics (heart implants, hearing aids, mechanical watches).

ICD Warning

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Crushing risk

Large magnets can crush fingers in a fraction of a second. Never place your hand betwixt two attracting surfaces.

Fire warning

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Safety First! Details about hazards in the article: Magnet Safety Guide.

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

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

Magnetic properties of material N42

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Environmental data

Force (pull)

Magnetic Induction

Other offers

SM 25x200 [2xM8] / N42 - magnetic separator

SM 18x275 [2xM5] / N42 - magnetic separator

MW 8x1.5 / N38 - cylindrical magnet

MW 45x25 / N38 - cylindrical magnet

Pros as well as cons of rare earth magnets.

Strengths

Limitations

Holding force characteristics

Maximum lifting capacity of the magnet – what it depends on?

Determinants of practical lifting force of a magnet

Safety rules for work with neodymium magnets

Fragile material

Handling rules

Warning for allergy sufferers

Power loss in heat

Swallowing risk

Keep away from electronics

Electronic hazard

ICD Warning

Crushing risk

Fire warning

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C