Product on order Ships in 3-5 days

UMP 65x45 [M8] GW - 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 210259

GTIN/EAN: 5906301813927

Diameter Ø

65 mm [±1 mm]

Height

45 mm [±1 mm]

Weight

1150 g

Load capacity

230.00 kg / 2255.53 N

Coating

[NiCuNi] Nickel

see specifications »

150.00 ZŁ with VAT / pcs + price for transport

121.95 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Pick up the phone and ask +48 22 499 98 98 if you prefer contact us via our online form our website.
Strength and appearance of magnetic components can be analyzed on our force calculator.

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

💡 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!

Technical details - UMP 65x45 [M8] GW - search holder

Specification / characteristics - UMP 65x45 [M8] GW - search holder

properties

properties	values
Cat. no.	210259
GTIN/EAN	5906301813927
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	65 mm [±1 mm]
Height	45 mm [±1 mm]
Weight	1150 g
Load capacity ~ ?	230.00 kg / 2255.53 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

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%

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: 210259-2026

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For underwater searches, we recommend specialized holders from the GOLD series, designed for working in difficult conditions. Model UMP 65x45 [M8] GW offers an optimal weight-to-pull force ratio, which is important for repeated throwing. The choice depends on whether you plan to throw from the shore (double-sided) or from a bridge (single-sided).

The double-sided model attracts from above and below, increasing the chance of hooking a find. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. 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). Avoid throwing the magnet against bridge pillars or hard obstacles. Maintenance (e.g., WD-40) prevents surface corrosion of the steel housing.

We offer both standalone holders and ready-made gift sets (depending on the selected option in the store). 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.

The capacity given in the name (e.g., 230.00 kg) is the maximum value measured in laboratory conditions. The magnet may slide on round elements (bicycle frame) due to the small contact area. 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. 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 components, which translates into a clear advantage during every trip to the water.

The unique way of mounting the magnet in the protective cup builds a unified structure that dampens shocks while fishing on difficult, rocky bottoms.

Many sellers employ a tactic by advertising the pull force measured only on the vertical mount. The Dhit brand focuses on full transparency by providing the real parameters of the magnet, so you avoid disappointment during real field work.

{Unlike competitors importing from China, Dhit provides expert advice and instant warranty help, which is crucial after the purchase. Instead of risking with unknown goods, stick with the market leader that ensures the happiness of every user.

Pros and cons of rare earth magnets.

Pros

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

Their magnetic field is maintained, and after around ten years it decreases only by ~1% (theoretically),
Neodymium magnets are distinguished by extremely resistant to demagnetization caused by external magnetic fields,
A magnet with a shiny gold surface looks better,
Neodymium magnets ensure maximum magnetic induction on a their surface, which increases force concentration,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of custom shaping and optimizing to complex applications,
Significant place in modern technologies – they find application in mass storage devices, electromotive mechanisms, precision medical tools, also industrial machines.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in miniature devices

Limitations

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
Neodymium magnets decrease their power 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 as well as corrosion.
Limited ability of producing nuts in the magnet and complex forms - recommended is a housing - magnet mounting.
Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical after entering the body.
With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

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

Breakaway force was defined for optimal configuration, assuming:

on a block made of structural steel, perfectly concentrating the magnetic field
possessing a massiveness of minimum 10 mm to ensure full flux closure
with an polished touching surface
under conditions of no distance (metal-to-metal)
during detachment in a direction perpendicular to the mounting surface
at temperature approx. 20 degrees Celsius

Key elements affecting lifting force

In practice, the actual holding force depends on many variables, listed from crucial:

Gap (between the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or debris).
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Base massiveness – too thin sheet does not close the flux, causing part of the flux to be escaped into the air.
Steel grade – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

H&S for magnets

Thermal limits

Regular neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Choking Hazard

Absolutely keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are fatal.

Compass and GPS

Be aware: rare earth magnets produce a field that interferes with precision electronics. Keep a safe distance from your phone, device, and GPS.

Warning for allergy sufferers

Medical facts indicate that nickel (the usual finish) is a strong allergen. If your skin reacts to metals, avoid direct skin contact and opt for encased magnets.

Safe distance

Avoid bringing magnets near a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.

Mechanical processing

Dust generated during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Crushing force

Large magnets can smash fingers instantly. Do not put your hand between two strong magnets.

Handling guide

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Life threat

Patients with a ICD should maintain an absolute distance from magnets. The magnetism can stop the operation of the life-saving device.

Beware of splinters

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets will cause them cracking into small pieces.

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

UMP 65x45 [M8] GW - search holder

Technical details - UMP 65x45 [M8] GW - search holder

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Environmental data

Force (pull)

Magnetic Induction

Other offers

CM PML-6 / N45 - magnetic gripper

UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

MW 38x12 / N38 - cylindrical magnet

UMS 25x10.5x5.5x8 / N38 - conical magnetic holder

Pros and cons of rare earth magnets.

Pros

Limitations

Lifting parameters

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

Key elements affecting lifting force

H&S for magnets

Thermal limits

Choking Hazard

Compass and GPS

Warning for allergy sufferers

Safe distance

Mechanical processing

Crushing force

Handling guide

Life threat

Beware of splinters

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C