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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

see parameters »

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

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Give us a call +48 22 499 98 98 or send us a note using form through our site.
Strength along with form of a neodymium magnet can be calculated on our power calculator.

Order by 14:00 and we’ll ship today!

💡 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 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 specification and ecology

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: 210382-2026

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The best choice are magnets in thick, chrome-plated housings dedicated to water applications. 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 double-sided model attracts from above and below, increasing the chance of hooking a find. 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.

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.

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.

This force applies to perfect adherence with the entire surface to a smooth, clean steel plate with a min. thickness of 20mm. 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.

By selecting Dhit GOLD mounts, you receive a product of a significantly higher standard and real N52 grade for the average cost.

The GOLD series feature a robust construction that provides a true shield for the magnetic core.

It is worth remembering that the identical magnet used by the side hook often has only a fraction of power instead of the declared 200 kg. GOLD mounts guarantees honest data by providing the actual capabilities of the magnet, so you can be sure during real field work.

{In contrast to competitors importing from China, Dhit provides expert advice and instant service assistance, which is crucial after the purchase. Every product is checked before shipping, which ensures that you the set will be of the highest quality.

Advantages as well as disadvantages of neodymium magnets.

Benefits

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (according to literature),
Neodymium magnets are remarkably resistant to loss of magnetic properties caused by external interference,
By covering with a reflective coating of nickel, the element has an nice look,
They show high magnetic induction at the operating surface, which affects their effectiveness,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of accurate machining as well as adapting to complex requirements,
Significant place in advanced technology sectors – they find application in data components, motor assemblies, advanced medical instruments, and modern systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices

Disadvantages

Drawbacks and weaknesses of neodymium magnets and proposals for their use:

At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in force. 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 resistant to moisture, in case of application outdoors
Due to limitations in producing nuts and complicated forms in magnets, we propose using cover - magnetic holder.
Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these products can disrupt the diagnostic process medical when they are in the body.
Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum magnetic pulling force – what affects it?

The load parameter shown represents the peak performance, recorded under laboratory conditions, specifically:

using a sheet made of low-carbon steel, serving as a ideal flux conductor
possessing a thickness of minimum 10 mm to ensure full flux closure
characterized by smoothness
with zero gap (no paint)
under axial force direction (90-degree angle)
in stable room temperature

Magnet lifting force in use – key factors

Real force impacted by working environment parameters, including (from priority):

Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the pulling force, 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 (often approx. 20-30% of maximum force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Material type – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
Plate texture – ground elements ensure maximum contact, which improves force. Uneven metal reduce efficiency.
Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.

Precautions when working with NdFeB magnets

Cards and drives

Powerful magnetic fields can corrupt files on credit cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Do not give to children

Product intended for adults. Small elements can be swallowed, causing severe trauma. Keep away from kids and pets.

Implant safety

Patients with a pacemaker must keep an safe separation from magnets. The magnetic field can interfere with the operation of the implant.

Operating temperature

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

Handling guide

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.

Crushing force

Protect your hands. Two powerful magnets will join instantly with a force of massive weight, crushing everything in their path. Be careful!

GPS and phone interference

Note: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, tablet, and GPS.

Beware of splinters

Despite metallic appearance, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Do not drill into magnets

Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Metal Allergy

It is widely known that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, prevent touching magnets with bare hands or select encased magnets.

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

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

Technical details - 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

Sustainability

Force (pull)

Magnetic Field

Other offers

MPL 10x10x10 / N38 - lamellar magnet

MPL 30x20x4 / N38 - lamellar magnet

UMP 135x40 [M10+M12] GW F600 Lina / N38 - search holder

MPL 10x7x3 / N38 - lamellar magnet

Advantages as well as disadvantages of neodymium magnets.

Benefits

Disadvantages

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Magnet lifting force in use – key factors

Precautions when working with NdFeB magnets

Cards and drives

Do not give to children

Implant safety

Operating temperature

Handling guide

Crushing force

GPS and phone interference

Beware of splinters

Do not drill into magnets

Metal Allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C