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 parameters »

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

Looking for a better price?

Call us +48 888 99 98 98 alternatively get in touch through our online form the contact form page.
Strength along with form of magnetic components can be checked with our force calculator.

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

💡 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 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

Technical and environmental data

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%

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: 210447-2026

Quick Unit Converter

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Force (N)

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For underwater searches, we recommend specialized holders from the GOLD series, designed for working in difficult conditions. This specific magnet ensures a laboratory lifting capacity of up to 330.00 kg, which translates into high effectiveness in water. The choice depends on whether you plan to throw from the shore (double-sided) or from a bridge (single-sided).

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). 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). 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.

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. We recommend always securing the thread with glue or tightening the eyelet firmly before first use.

The capacity given in the name (e.g., 330.00 kg) is the maximum value measured in laboratory conditions. 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.

Possessing and using a neodymium magnet to clean the bottom is generally legal, provided you are not searching for artifacts protected by law. Magnet fishing is an eco-friendly hobby if you clean the river from trash and scrap.

It is the smartest investment because for the same money, you obtain a premium mount that will serve you for much longer than generic imports.

Most magnets on the market have weak shells that deform during the any strong impact against concrete or rocks.

Many distributors use a trick by promoting the pull force tested only on the vertical mount. The Dhit brand guarantees full transparency by stating the actual capabilities of the gear, so you avoid disappointment during treasure hunting.

{In contrast to anonymous sellers, Dhit provides full support and real service assistance, which is crucial after the transaction. Instead of risking with unknown goods, stick with proven gear that ensures the happiness of searcher.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Benefits

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

They do not lose strength, even during around ten years – the drop in lifting capacity is only ~1% (according to tests),
Neodymium magnets remain exceptionally resistant to demagnetization caused by external interference,
By applying a decorative layer of nickel, the element acquires an modern look,
They show high magnetic induction at the operating surface, which affects their effectiveness,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Thanks to modularity in constructing and the capacity to customize to specific needs,
Universal use in modern industrial fields – they are utilized in data components, brushless drives, medical equipment, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in miniature devices

Weaknesses

Cons of neodymium magnets: application proposals

At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
Due to limitations in realizing nuts and complex shapes in magnets, we recommend using casing - magnetic mount.
Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these devices can complicate diagnosis medical after entering the body.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what affects it?

The force parameter is a result of laboratory testing performed under specific, ideal conditions:

with the application of a sheet made of low-carbon steel, ensuring full magnetic saturation
whose thickness is min. 10 mm
with a surface perfectly flat
without any clearance between the magnet and steel
for force acting at a right angle (pull-off, not shear)
in stable room temperature

Key elements affecting lifting force

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

Gap between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
Material composition – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
Surface condition – smooth surfaces ensure maximum contact, which improves force. Rough surfaces weaken the grip.
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 testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, in contrast under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate lowers the lifting capacity.

Precautions when working with neodymium magnets

Threat to navigation

An intense magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Do not bring magnets near a device to avoid damaging the sensors.

This is not a toy

Product intended for adults. Tiny parts can be swallowed, causing intestinal necrosis. Keep out of reach of children and animals.

Flammability

Powder produced during machining of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Thermal limits

Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.

Serious injuries

Big blocks can crush fingers instantly. Under no circumstances place your hand betwixt two attracting surfaces.

Electronic hazard

Do not bring magnets near a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Allergy Warning

Some people have a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in dermatitis. We recommend wear protective gloves.

Immense force

Exercise caution. Neodymium magnets act from a long distance and snap with massive power, often faster than you can move away.

Life threat

Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Magnets are brittle

Despite the nickel coating, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Warning! Looking for details? Read our article: 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

Chemical composition

Sustainability

Force (pull)

Magnetic Field

Other products

MPL 50x50x25 / N38 - lamellar magnet

MPL 12x10x4 / N38 - lamellar magnet

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

MW 8x15 / N38 - cylindrical magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Benefits

Weaknesses

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what affects it?

Key elements affecting lifting force

Precautions when working with neodymium magnets

Threat to navigation

This is not a toy

Flammability

Thermal limits

Serious injuries

Electronic hazard

Allergy Warning

Immense force

Life threat

Magnets are brittle

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Strengths and weaknesses of Nd₂Fe₁₄B magnets.