Product available Ships tomorrow

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 parameters »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

bulk discounts:

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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

264.00 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Call us now +48 22 499 98 98 alternatively get in touch using form the contact form page.
Lifting power along with shape of a neodymium magnet can be checked with our force calculator.

Orders placed before 14:00 will be shipped the same business day.

💡 Guide: How to choose a decent magnet and not get ripped off?

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

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%

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)

Force in kg

Newtons (N)

Force in lbs

Magnetic Field

Gauss (Gs)

Induction (T)

Put your value in a single slot to see the conversion for all other units at once.

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For underwater searches, we recommend specialized holders from the GOLD series, designed for working in difficult conditions. It is equipment that can handle pulling heavy and silted objects from the river bottom. 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. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. The double-sided version increases search efficiency by 100%.

This construction protects the brittle neodymium from direct impact against stones and the bottom. Avoid throwing the magnet against bridge pillars or hard obstacles. 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. Using thread glue is crucial to not lose the magnet in silt.

The capacity given in the name (e.g., 330.00 kg) is the maximum value measured in laboratory conditions. The magnet may slide on round elements (bicycle frame) due to the small contact area. A large power reserve is essential in real search conditions.

If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). It is worth acting responsibly, cleaning up after yourself, and caring for the environment by removing fished-out scrap.

Unlike other brands, Dhit does not cut corners on materials, which translates into a clear advantage during every trip to the water.

Most competitor mounts have weak shells that crack during the first hard impact against underwater obstacles.

Many distributors use a trick by promoting the power tested only on the top hook. Interestingly, in the web, there are virtually no videos demonstrating the actual strength of competitor products on the lateral attachment.

{By choosing GOLD mounts, you bet on a local market leader that knows the conditions of local rivers and lakes. Every mount is individually inspected before delivery, which ensures that you receive equipment of the highest quality.

Advantages as well as disadvantages of rare earth magnets.

Strengths

Besides their high retention, neodymium magnets are valued for these benefits:

They retain magnetic properties for almost ten years – the loss is just ~1% (in theory),
Neodymium magnets prove to be highly resistant to magnetic field loss caused by external field sources,
A magnet with a shiny nickel surface is more attractive,
Magnets possess exceptionally strong magnetic induction on the surface,
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 freedom in constructing and the capacity to customize to specific needs,
Versatile presence in modern technologies – they are utilized in hard drives, brushless drives, advanced medical instruments, as well as complex engineering applications.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

What to avoid - cons of neodymium magnets and ways of using them

To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
We suggest a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated forms.
Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
Due to expensive raw materials, their price is higher than average,

Holding force characteristics

Detachment force of the magnet in optimal conditions – what it depends on?

Magnet power was determined for optimal configuration, assuming:

using a sheet made of mild steel, acting as a ideal flux conductor
possessing a thickness of min. 10 mm to ensure full flux closure
with a surface perfectly flat
without any clearance between the magnet and steel
during detachment in a direction perpendicular to the plane
in stable room temperature

Practical lifting capacity: influencing factors

During everyday use, the actual holding force results from a number of factors, presented from crucial:

Distance (betwixt the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, rust or debris).
Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
Plate thickness – too thin steel does not accept the full field, causing part of the power to be escaped into the air.
Material composition – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
Surface condition – ground elements guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast 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 reduces the load capacity.

H&S for magnets

Do not overheat magnets

Do not overheat. NdFeB magnets are sensitive to heat. If you need operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Data carriers

Avoid bringing magnets close to a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

GPS Danger

A strong magnetic field disrupts the operation of magnetometers in phones and navigation systems. Do not bring magnets close to a device to prevent breaking the sensors.

Mechanical processing

Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Magnet fragility

Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Respect the power

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

Danger to the youngest

Always keep magnets out of reach of children. Choking hazard is high, and the effects of magnets clamping inside the body are very dangerous.

Bodily injuries

Large magnets can smash fingers in a fraction of a second. Do not put your hand between two attracting surfaces.

Skin irritation risks

Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from touching magnets with bare hands or choose versions in plastic housing.

Medical implants

Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

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

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

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

Other deals

MPL 40x18x10 / N38 - lamellar magnet

UI 40x12x7 [CA] - badge holder

SM 18x225 [2xM5] / N42 - magnetic separator

UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

Advantages as well as disadvantages of rare earth magnets.

Strengths

Weaknesses

Holding force characteristics

Detachment force of the magnet in optimal conditions – what it depends on?

Practical lifting capacity: influencing factors

H&S for magnets

Do not overheat magnets

Data carriers

GPS Danger

Mechanical processing

Magnet fragility

Respect the power

Danger to the youngest

Bodily injuries

Skin irritation risks

Medical implants

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C