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UMP 75x24 [M8+M10] GW F200 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 210382

GTIN/EAN: 5906301814016

5.00

Diameter Ø

75 mm [±1 mm]

Height

24 mm [±1 mm]

Weight

0.9 g

Load capacity

280.00 kg / 2745.86 N

Coating

[NiCuNi] Nickel

view properties »

230.00 ZŁ with VAT / pcs + price for transport

186.99 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 22 499 98 98 if you prefer get in touch via contact form the contact section.
Parameters and form of a magnet can be checked using our magnetic mass calculator.

Orders submitted before 14:00 will be dispatched today!

💡 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!

Technical data - UMP 75x24 [M8+M10] GW F200 Lina / N38 - search holder

Specification / characteristics - UMP 75x24 [M8+M10] GW F200 Lina / N38 - search holder

properties

properties	values
Cat. no.	210382
GTIN/EAN	5906301814016
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	75 mm [±1 mm]
Height	24 mm [±1 mm]
Weight	0.9 g
Load capacity ~ ?	280.00 kg / 2745.86 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMP 75x24 [M8+M10] GW F200 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

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: 210382-2026

Measurement Calculator

Pulling force

Force in kg

lbs

Magnetic Field

Gauss (Gs)

Tesla (T)

Insert a value into a field, to see the rest will convert automatically.

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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 280.00 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. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. 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). 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. We often add thread glue to secure the eyelet against unscrewing in water. We recommend always securing the thread with glue or tightening the eyelet firmly before first use.

The capacity given in the name (e.g., 280.00 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. A large power reserve is essential in real search conditions.

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.

It is the best value because for the same money, you buy a premium mount that will last for many seasons than generic imports.

Consequently, despite the affordable cost, the lifespan of the GOLD mount puts it a step above other brands.

It is worth remembering that the identical magnet pulled by the lateral point can actually show as little as a fraction of strength instead of the declared 200 kg. The Dhit brand focuses on honest data by providing the real parameters of the gear, so you avoid disappointment during real field work.

{Unlike anonymous sellers, Dhit provides full support and real service assistance, which is crucial after the purchase. Every mount is individually inspected before shipping, which guarantees that you the set will be of the defect-free.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Benefits

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

Their power remains stable, and after around 10 years it drops only by ~1% (according to research),
Neodymium magnets are characterized by extremely resistant to loss of magnetic properties caused by magnetic disturbances,
A magnet with a shiny gold surface is more attractive,
They show high magnetic induction at the operating surface, which increases their power,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
Possibility of custom machining and adapting to specific requirements,
Wide application in modern industrial fields – they serve a role in mass storage devices, drive modules, diagnostic systems, as well as industrial machines.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
Neodymium magnets decrease their force 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
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
We recommend a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these devices are able to disrupt the diagnostic process medical in case of swallowing.
With mass production the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Magnet power was determined for optimal configuration, taking into account:

on a plate made of mild steel, perfectly concentrating the magnetic flux
possessing a massiveness of at least 10 mm to ensure full flux closure
with an ideally smooth touching surface
without any clearance between the magnet and steel
for force acting at a right angle (in the magnet axis)
at temperature room level

Practical aspects of lifting capacity – factors

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

Clearance – existence of foreign body (paint, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Steel thickness – too thin steel does not close the flux, causing part of the power to be wasted into the air.
Material composition – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
Surface quality – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
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 carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, however under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

Safe handling of NdFeB magnets

Phone sensors

Note: rare earth magnets generate a field that confuses precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.

Cards and drives

Data protection: Strong magnets can damage payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).

Metal Allergy

Some people have a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Extended handling can result in a rash. We recommend use protective gloves.

Handling guide

Use magnets consciously. Their immense force can surprise even experienced users. Stay alert and respect their force.

Beware of splinters

Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Mechanical processing

Machining of NdFeB material poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Medical interference

People with a ICD must keep an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.

This is not a toy

Only for adults. Small elements can be swallowed, leading to intestinal necrosis. Store out of reach of kids and pets.

Thermal limits

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and pulling force.

Finger safety

Big blocks can break fingers in a fraction of a second. Do not put your hand betwixt two attracting surfaces.

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

UMP 75x24 [M8+M10] GW F200 Lina / N38 - search holder

Technical data - UMP 75x24 [M8+M10] GW F200 Lina / N38 - search holder

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Environmental data

Pulling force

Magnetic Field

Other deals

MW 8x15 / N38 - cylindrical magnet

KM HF - 22 kg - magnetic bracket

SM 25x250 [2xM8] / N52 - magnetic separator

MW 3x1 / N38 - cylindrical magnet

Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Weaknesses

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Practical aspects of lifting capacity – factors

Safe handling of NdFeB magnets

Phone sensors

Cards and drives

Metal Allergy

Handling guide

Beware of splinters

Mechanical processing

Medical interference

This is not a toy

Thermal limits

Finger safety

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.