Product available Ships today (order by 14:00)

UMP 94x28 [3xM10] GW F300 GOLD / 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 210447

GTIN/EAN: 5906301814115

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%]

product specifications »

200.00 ZŁ with VAT / pcs + price for transport

162.60 ZŁ net + 23% VAT / pcs

bulk discounts:

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Do you have a dilemma?

Call us +48 888 99 98 98 otherwise drop us a message through inquiry form the contact section.
Lifting power as well as shape of a magnet can be calculated on our our magnetic calculator.

Same-day shipping 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 / N38 - search holder

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

properties

properties	values
Cat. no.	210447
GTIN/EAN	5906301814115
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%]
Size/Mount Quantity	3xM10
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMP 94x28 [3xM10] GW F300 GOLD / 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

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%

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: 210447-2026

Magnet Unit Converter

Force (pull)

Force in kg

Force in lbs

Magnetic Field

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It is worth betting on proven F200, F300, or F550 models from our offer, which guarantee real power. This specific magnet ensures a laboratory lifting capacity of up to 330.00 kg, which translates into high effectiveness in water. 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. Side mounting is ideal for throwing from the shore, as the magnet drags flat along the bottom. 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. 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. We recommend always securing the thread with glue or tightening the eyelet firmly before first use.

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%. 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. 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 same money, you obtain a premium mount that will serve you for many seasons than budget alternatives.

The GOLD series utilize a robust construction that acts as a real armor for the brittle neodymium.

You should know that the same magnet used by the side hook can actually show as little as 40 kg of strength instead of the declared 200 kg. The Dhit brand focuses on full transparency by stating the real parameters of the magnet, so you can be sure during treasure hunting.

{In contrast to anonymous sellers, Dhit provides full support and instant warranty help, which gives peace of mind after the transaction. Every mount is checked before delivery, which guarantees that you the set will be of the defect-free.

Pros as well as cons of neodymium magnets.

Benefits

Besides their magnetic performance, neodymium magnets are valued for these benefits:

They have stable power, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
Neodymium magnets are exceptionally resistant to loss of magnetic properties caused by external field sources,
In other words, due to the metallic surface of silver, the element gains visual value,
They are known for high magnetic induction at the operating surface, which affects their effectiveness,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Considering the option of flexible shaping and customization to custom requirements, NdFeB magnets can be manufactured in a wide range of forms and dimensions, which amplifies use scope,
Significant place in advanced technology sectors – they find application in hard drives, motor assemblies, medical equipment, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in small systems

Weaknesses

Disadvantages of NdFeB magnets:

To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
Neodymium magnets decrease their strength 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 stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Due to limitations in creating nuts and complex shapes in magnets, we propose using cover - magnetic holder.
Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
With mass production the cost of neodymium magnets can be a barrier,

Pull force analysis

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

Magnet power was determined for optimal configuration, including:

using a sheet made of low-carbon steel, serving as a ideal flux conductor
with a thickness minimum 10 mm
with an ideally smooth touching surface
under conditions of no distance (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at ambient temperature room level

Lifting capacity in practice – influencing factors

During everyday use, the actual lifting capacity is determined by many variables, presented from most significant:

Air gap (between the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to paint, corrosion or debris).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Steel thickness – insufficiently thick steel does not close the flux, causing part of the power to be escaped into the air.
Material type – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
Thermal environment – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings

Immense force

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Risk of cracking

Neodymium magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets will cause them cracking into small pieces.

Life threat

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Thermal limits

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.

Fire risk

Combustion risk: Neodymium dust is explosive. Do not process magnets in home conditions as this risks ignition.

Bodily injuries

Big blocks can crush fingers instantly. Never place your hand betwixt two attracting surfaces.

GPS and phone interference

An intense magnetic field negatively affects the operation of magnetometers in smartphones and GPS navigation. Maintain magnets close to a smartphone to prevent damaging the sensors.

Data carriers

Intense magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Skin irritation risks

Studies show that the nickel plating (standard magnet coating) is a potent allergen. If you have an allergy, refrain from touching magnets with bare hands or choose encased magnets.

Choking Hazard

NdFeB magnets are not intended for children. Accidental ingestion of several magnets may result in them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.

Security! Looking for details? Check our post: Why are neodymium magnets dangerous?

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

Other products

XT-6 magnetyzer do silników - BENZYNA + olej - XT-6 magnetizer

MW 14x3 / N38 - cylindrical magnet

SM 25x275 [2xM8] / N42 - magnetic separator

HH 42x8.8 [M6] / N38 - through hole magnetic holder

Pros as well as cons of neodymium magnets.

Benefits

Weaknesses

Pull force analysis

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

Lifting capacity in practice – influencing factors

Warnings

Immense force

Risk of cracking

Life threat

Thermal limits

Fire risk

Bodily injuries

GPS and phone interference

Data carriers

Skin irritation risks

Choking Hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C