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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 specifications »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

243.90 ZŁ

300.00 ZŁ

price from 5 pcs

229.27 ZŁ

282.00 ZŁ

price from 15 pcs

214.63 ZŁ

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Call us +48 22 499 98 98 alternatively contact us by means of request form the contact section.
Strength along with appearance of a magnet can be analyzed with our our magnetic calculator.

Same-day processing for orders placed before 14:00.

💡 Check why professionals choose Dhit over cheap substitutes

Instead of believing fairy tales on YouTube with tests on uncertified equipment, see what really determines your magnet's power:

📏 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 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

Technical specification and ecology

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%

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: 210446-2026

Magnet Unit Converter

Force (pull)

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UMS 20x8.6x4.5x7 / N38 - conical magnetic holder

6.46 ZŁ brutto / pcs

Product available Ships tomorrow

MP 36.2x11/6x7.5 / N38 - ring magnet

35.01 ZŁ brutto / pcs

Product available Ships tomorrow

SM 18x100 [2xM5] / N42 - magnetic separator

221.40 ZŁ brutto / pcs

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AM ucho [M8] - magnetic accessories

4.92 ZŁ brutto / pcs

The best choice are magnets in thick, chrome-plated housings dedicated to water applications. It is equipment that can handle pulling heavy and silted objects from the river bottom. 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. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. The double-sided version increases search efficiency by 100%.

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. 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). We often add thread glue to secure the eyelet against unscrewing in water. 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.

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.

By selecting Dhit GOLD mounts, you get a product of a significantly higher standard and real N52 grade for the same market price.

The unique way of gluing and seating the magnet in the Dhit housing creates a solid structure that dampens shocks while working on difficult, rocky bottoms.

It is worth remembering that the identical magnet used by the lateral point can actually show as little as 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 other brands on the side hook.

{In contrast to anonymous sellers, Dhit provides expert advice and real service assistance, which gives peace of mind after the transaction. Instead of risking with unknown goods, stick with the market leader that ensures the satisfaction of every user.

Advantages and disadvantages of rare earth magnets.

Strengths

Apart from their superior power, neodymium magnets have these key benefits:

They do not lose strength, even over approximately ten years – the drop in power is only ~1% (based on measurements),
Neodymium magnets prove to be exceptionally resistant to magnetic field loss caused by external field sources,
By applying a smooth coating of nickel, the element gains an modern look,
Neodymium magnets deliver maximum magnetic induction on a contact point, 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 form) at temperatures up to 230°C and above...
Considering the possibility of free shaping and adaptation to unique needs, magnetic components can be produced in a variety of forms and dimensions, which amplifies use scope,
Versatile presence in innovative solutions – they serve a role in HDD drives, electromotive mechanisms, diagnostic systems, also modern systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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 extremely resistant to heat
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Due to limitations in creating threads and complex forms in magnets, we propose using casing - magnetic mechanism.
Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child safety. Additionally, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Magnetic strength at its maximum – what it depends on?

The lifting capacity listed is a theoretical maximum value conducted under the following configuration:

on a plate made of mild steel, optimally conducting the magnetic flux
possessing a thickness of at least 10 mm to ensure full flux closure
characterized by smoothness
with direct contact (no impurities)
for force applied at a right angle (pull-off, not shear)
at standard ambient temperature

What influences lifting capacity in practice

Holding efficiency is influenced by specific conditions, mainly (from priority):

Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of maximum force).
Steel thickness – too thin sheet does not accept the full field, causing part of the flux to be escaped into the air.
Plate material – mild steel gives the best results. Higher carbon content lower magnetic permeability and holding force.
Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets

Electronic hazard

Intense magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Keep a distance of at least 10 cm.

Maximum temperature

Control the heat. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.

Conscious usage

Be careful. Rare earth magnets act from a distance and snap with huge force, often faster than you can react.

Allergy Warning

A percentage of the population experience a sensitization to nickel, which is the standard coating for neodymium magnets. Extended handling can result in skin redness. It is best to use safety gloves.

Risk of cracking

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Compass and GPS

A strong magnetic field interferes with the operation of compasses in phones and GPS navigation. Do not bring magnets near a smartphone to avoid breaking the sensors.

Pacemakers

Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Adults only

Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep out of reach of children and animals.

Combustion hazard

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Bodily injuries

Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing anything in their path. Be careful!

Important! More info about risks in the article: Safety of working with magnets.

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

Physical properties - 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

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

See also proposals

UMS 20x8.6x4.5x7 / N38 - conical magnetic holder

MP 36.2x11/6x7.5 / N38 - ring magnet

SM 18x100 [2xM5] / N42 - magnetic separator

AM ucho [M8] - magnetic accessories

Advantages and disadvantages of rare earth magnets.

Strengths

Cons

Pull force analysis

Magnetic strength at its maximum – what it depends on?

What influences lifting capacity in practice

Precautions when working with NdFeB magnets

Electronic hazard

Maximum temperature

Conscious usage

Allergy Warning

Risk of cracking

Compass and GPS

Pacemakers

Adults only

Combustion hazard

Bodily injuries

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C