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UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - 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 210446

GTIN/EAN: 5906301814108

5.00

Diameter Ø

94 mm [±1 mm]

Height

28 mm [±1 mm]

Weight

1600 g

Load capacity

330.00 kg / 3236.19 N

Coating

[NiCuNi] Nickel

Magnetic Flux

~ 8 000 Gauss [±5%]

technical details »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

bulk discounts:

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Call us +48 888 99 98 98 otherwise contact us via inquiry form the contact page.
Parameters as well as appearance of a magnet can be verified on our magnetic mass calculator.

Orders submitted before 14:00 will be dispatched 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!

Product card - UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

Specification / characteristics - UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

properties

properties	values
Cat. no.	210446
GTIN/EAN	5906301814108
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	94 mm [±1 mm]
Height	28 mm [±1 mm]
Weight	1600 g
Load capacity ~ ?	330.00 kg / 3236.19 N
Coating	[NiCuNi] Nickel
Series	GOLD
Holder Type	2 sided
Material Type	Structural steel S235 (ferrous)
Magnetic Flux	~ 8 000 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 N38

Specification / characteristics UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	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

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%

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: 210446-2026

Magnet Unit Converter

Force (pull)

Force in kg

Newtons (N)

Pounds (lbs)

Field Strength

Gauss (Gs)

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For underwater searches, we recommend specialized holders from the GOLD series, designed for working in difficult conditions. Model UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 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.

The 2xTwo-Side version is more versatile, allowing the eyelet to be mounted in two positions. Top mounting works well when fishing from a bridge, pier, or well (vertical technique). 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). 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. 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.

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.

If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). We recommend familiarizing yourself with current local regulations and heritage protection laws.

Unlike many market offers, Dhit uses the highest quality components, which translates into a clear advantage during treasure hunting.

As a result, despite the market price, the lifespan of the GOLD mount positions it a step above other brands.

It is worth remembering that the identical magnet used by the lateral point often has as little as a fraction of power instead of the declared 200 kg. The Dhit brand focuses on honest data by providing the actual capabilities of the magnet, so you can be sure during real field work.

{By choosing Dhit, you bet on a local market leader that perfectly understands the specifics of our waters. Every mount is individually inspected before delivery, which guarantees that you receive equipment of the defect-free.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

Besides their exceptional pulling force, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (based on calculations),
Magnets very well resist against demagnetization caused by ambient magnetic noise,
Thanks to the smooth finish, the plating of nickel, gold-plated, or silver-plated gives an clean appearance,
Magnetic induction on the surface of the magnet remains impressive,
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...
Thanks to modularity in designing and the ability to customize to specific needs,
Versatile presence in high-tech industry – they find application in hard drives, electromotive mechanisms, diagnostic systems, as well as technologically advanced constructions.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Characteristics of disadvantages of neodymium magnets: application proposals

To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing threads and complex shapes in magnets, we propose using cover - magnetic mount.
Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small components of these magnets can disrupt the diagnostic process medical in case of swallowing.
Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

The declared magnet strength represents the peak performance, obtained under ideal test conditions, specifically:

using a sheet made of mild steel, serving as a circuit closing element
whose thickness reaches at least 10 mm
with a plane free of scratches
under conditions of no distance (metal-to-metal)
during detachment in a direction perpendicular to the mounting surface
at room temperature

Key elements affecting lifting force

Bear in mind that the working load may be lower influenced by elements below, in order of importance:

Gap (betwixt the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
Metal type – different alloys attracts identically. High carbon content weaken the interaction with the magnet.
Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet and the plate reduces the load capacity.

Precautions when working with NdFeB magnets

Threat to navigation

Navigation devices and mobile phones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Sensitization to coating

Medical facts indicate that nickel (standard magnet coating) is a potent allergen. If you have an allergy, avoid touching magnets with bare hands and select coated magnets.

Life threat

Individuals with a heart stimulator must maintain an large gap from magnets. The magnetic field can interfere with the operation of the life-saving device.

Respect the power

Handle with care. Neodymium magnets act from a distance and connect with huge force, often faster than you can move away.

Do not drill into magnets

Fire hazard: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

Fragile material

Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Bodily injuries

Big blocks can break fingers in a fraction of a second. Do not put your hand between two attracting surfaces.

Data carriers

Avoid bringing magnets near a purse, computer, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.

Keep away from children

Neodymium magnets are not toys. Eating multiple magnets can lead to them attracting across intestines, which poses a direct threat to life and necessitates urgent medical intervention.

Demagnetization risk

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

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

UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

Product card - UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Environmental data

Force (pull)

Field Strength

See also deals

SMZR 25x225 / N52 - magnetic separator with handle

UMGGZ 88x8.5 [M8] GZ / N38 - rubber magnetic holder external thread

AM ucho małe [M8] - magnetic accessories

MP 10x6x4 / N38 - ring magnet

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Weaknesses

Pull force analysis

Best holding force of the magnet in ideal parameters – what contributes to it?

Key elements affecting lifting force

Precautions when working with NdFeB magnets

Threat to navigation

Sensitization to coating

Life threat

Respect the power

Do not drill into magnets

Fragile material

Bodily injuries

Data carriers

Keep away from children

Demagnetization risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages and disadvantages of Nd₂Fe₁₄B magnets.