Product on order Ships in 3-5 days

UMP 65x45 [M8]x2 GW / 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 210348

GTIN/EAN: 5906301813996

5.00

Diameter Ø

65 mm [±1 mm]

Height

45 mm [±1 mm]

Weight

1170 g

Load capacity

230.00 kg / 2255.53 N

Coating

[NiCuNi] Nickel

check technical data »

150.00 ZŁ with VAT / pcs + price for transport

121.95 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

121.95 ZŁ

150.00 ZŁ

price from 10 pcs

114.63 ZŁ

141.00 ZŁ

price from 25 pcs

107.32 ZŁ

132.00 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Contact us by phone +48 888 99 98 98 alternatively drop us a message via our online form through our site.
Specifications along with form of magnets can be verified with our online calculation tool.

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!

Physical properties - UMP 65x45 [M8]x2 GW / N38 - search holder

Specification / characteristics - UMP 65x45 [M8]x2 GW / N38 - search holder

properties

properties	values
Cat. no.	210348
GTIN/EAN	5906301813996
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	1170 g
Load capacity ~ ?	230.00 kg / 2255.53 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMP 65x45 [M8]x2 GW / 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: 210348-2026

Magnet Unit Converter

Pulling force

Kilograms (kg)

lbs

Field Strength

Gauss (Gs)

Just populate a single box, to let the tool fill in everything else for you.

View also offers

Product on order Ships in 3-5 days

UMH 75x18x68 [M8] / N38 - magnetic holder with hook

202.95 ZŁ brutto / pcs

Product on order Ships in 3-5 days

MW 12x3 / N38 - cylindrical magnet

1.648 ZŁ brutto / pcs

Product on order Ships in 3-5 days

UMT 12x20 green / N38 - board holder

1.894 ZŁ brutto / pcs

Product on order Ships in 3-5 days

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

200.00 ZŁ brutto / pcs

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 230.00 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. Side mounting is ideal for throwing from the shore, as the magnet drags flat along the bottom. Single-sided magnets are usually lighter and cheaper but less effective for long throws.

The magnet is glued into a solid steel cup and sealed with epoxy resin, protecting it from water. 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.

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., 230.00 kg) is the maximum value measured in laboratory conditions. Dirt, rust, paint, and algae create a distance that weakens the magnet by even 70-80%. 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.

In contrast to other brands, Dhit uses the highest quality components, which translates into a clear advantage during every trip to the water.

The GOLD series utilize heavy-duty, thick-walled steel that provides a true shield for the brittle neodymium.

You should know that the identical magnet used by the side hook can actually show only a fraction of power instead of the promised 200 kg. GOLD mounts guarantees full transparency by stating the actual capabilities of the gear, so you avoid disappointment during treasure hunting.

{By choosing Dhit, you bet on a local market leader that knows the conditions of our waters. Every mount is individually inspected before delivery, which guarantees that you the set will be of the defect-free.

Pros and cons of neodymium magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:

Their magnetic field is durable, and after approximately 10 years it drops only by ~1% (according to research),
They retain their magnetic properties even under external field action,
By using a shiny coating of gold, the element gains an elegant look,
Neodymium magnets create maximum magnetic induction on a small area, 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 shape) at temperatures up to 230°C and above...
In view of the option of flexible molding and adaptation to specialized needs, neodymium magnets can be created in a variety of geometric configurations, which makes them more universal,
Universal use in modern technologies – they serve a role in magnetic memories, motor assemblies, advanced medical instruments, as well as complex engineering applications.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 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 immune to moisture, when using outdoors
Limited possibility of creating nuts in the magnet and complex shapes - preferred is a housing - mounting mechanism.
Possible danger related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, tiny parts of these magnets can be problematic in diagnostics medical when they are in the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

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

The load parameter shown concerns the peak performance, measured under laboratory conditions, meaning:

with the contact of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
possessing a thickness of min. 10 mm to ensure full flux closure
with an ground contact surface
under conditions of no distance (metal-to-metal)
under perpendicular force vector (90-degree angle)
at temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Effective lifting capacity is affected by working environment parameters, including (from most important):

Gap between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
Base massiveness – insufficiently thick steel causes magnetic saturation, causing part of the power to be wasted to the other side.
Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
Plate texture – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
Thermal conditions – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate reduces the holding force.

Safety rules for work with NdFeB magnets

Immense force

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

Compass and GPS

A strong magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Maintain magnets close to a device to avoid breaking the sensors.

Skin irritation risks

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation happens, immediately stop handling magnets and wear gloves.

Protective goggles

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Wear goggles.

Power loss in heat

Do not overheat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Life threat

For implant holders: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or request help to handle the magnets.

Combustion hazard

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

Finger safety

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

This is not a toy

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

Keep away from computers

Intense magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Keep a distance of min. 10 cm.

Attention! Learn more about risks in the article: Magnet Safety Guide.

UMP 65x45 [M8]x2 GW / N38 - search holder

Physical properties - UMP 65x45 [M8]x2 GW / N38 - search holder

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Ecology and recycling (GPSR)

Pulling force

Field Strength

View also offers

UMH 75x18x68 [M8] / N38 - magnetic holder with hook

MW 12x3 / N38 - cylindrical magnet

UMT 12x20 green / N38 - board holder

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

Pros and cons of neodymium magnets.

Strengths

Cons

Holding force characteristics

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

What influences lifting capacity in practice

Safety rules for work with NdFeB magnets

Immense force

Compass and GPS

Skin irritation risks

Protective goggles

Power loss in heat

Life threat

Combustion hazard

Finger safety

This is not a toy

Keep away from computers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C