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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

product specifications »

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

Looking for a better price?

Pick up the phone and ask +48 888 99 98 98 otherwise let us know using contact form the contact form page.
Parameters along with form of neodymium magnets can be analyzed on our force calculator.

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

💡 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 of the product - 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

Elemental analysis

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: 210382-2026

Quick Unit Converter

Pulling force

Force in kg

Newtons (N)

lbs

Field Strength

Tesla (T)

Simply fill in one field, to let the tool compute everything else automatically.

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It is worth betting on proven F200, F300, or F550 models from our offer, which guarantee real power. It is equipment that can handle pulling heavy and silted objects from the river bottom. For beginners, we recommend lighter single-sided models (F80-F200), for advanced users - heavier double-sided (Two-Side) ones.

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.

The magnet is glued into a solid steel cup and sealed with epoxy resin, protecting it from water. The housing significantly increases lifespan but does not make the magnet completely indestructible. 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.

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.

Searches are allowed as long as you do not interfere with archaeological sites or search for weapons. We recommend familiarizing yourself with current local regulations and heritage protection laws.

By selecting Dhit GOLD mounts, you get a product of a significantly higher standard and true magnetic power for the average cost.

As a result, despite the market price, the mechanical durability of the GOLD mount positions it far ahead of the competition.

Many distributors employ a tactic by advertising the pull force measured exclusively on the top hook. GOLD mounts guarantees honest data by stating the real parameters of the magnet, so you avoid disappointment during treasure hunting.

{Unlike anonymous sellers, Dhit provides full support and real warranty help, which gives peace of mind after the purchase. Don't risk it with unknown goods, stick with proven gear that cares about the satisfaction of every user.

Pros and cons of neodymium magnets.

Strengths

Apart from their consistent power, neodymium magnets have these key benefits:

They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
They have excellent resistance to magnetic field loss as a result of external fields,
The use of an elegant coating of noble metals (nickel, gold, silver) causes the element to look better,
Magnetic induction on the top side of the magnet is very high,
Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
Possibility of exact shaping as well as modifying to defined conditions,
Wide application in high-tech industry – they serve a role in HDD drives, motor assemblies, medical equipment, also multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in small systems

Limitations

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

At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited possibility of making nuts in the magnet and complex forms - recommended is cover - magnetic holder.
Health risk to health – tiny shards of magnets are risky, if swallowed, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these magnets are able to be problematic in diagnostics medical in case of swallowing.
With mass production the cost of neodymium magnets is economically unviable,

Pull force analysis

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

The force parameter is a theoretical maximum value executed under standard conditions:

with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
with a thickness of at least 10 mm
with an ideally smooth touching surface
without any insulating layer between the magnet and steel
under axial application of breakaway force (90-degree angle)
in temp. approx. 20°C

Lifting capacity in real conditions – factors

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

Distance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
Load vector – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
Steel thickness – too thin sheet causes magnetic saturation, causing part of the power to be wasted into the air.
Material type – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
Plate texture – smooth surfaces ensure maximum contact, which improves force. Uneven metal weaken the grip.
Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

Precautions when working with neodymium magnets

Protective goggles

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Crushing force

Mind your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!

Avoid contact if allergic

It is widely known that the nickel plating (the usual finish) is a common allergen. For allergy sufferers, refrain from direct skin contact and opt for versions in plastic housing.

Threat to navigation

GPS units and smartphones are highly susceptible to magnetism. Direct contact with a strong magnet can decalibrate the sensors in your phone.

ICD Warning

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

Swallowing risk

Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Keep away from children and animals.

Handling rules

Use magnets consciously. Their immense force can surprise even experienced users. Plan your moves and do not underestimate their force.

Threat to electronics

Data protection: Neodymium magnets can ruin data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Do not drill into magnets

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

Do not overheat magnets

Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

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

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

Technical of the product - 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

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Field Strength

View also proposals

MPL 3x3x2 / N38 - lamellar magnet

HH 25x7.7 [M5] / N38 - through hole magnetic holder

SM 18x300 [2xM5] / N42 - magnetic separator

MPL 30x15x2 / N38 - lamellar magnet

Pros and cons of neodymium magnets.

Strengths

Limitations

Pull force analysis

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

Lifting capacity in real conditions – factors

Precautions when working with neodymium magnets

Protective goggles

Crushing force

Avoid contact if allergic

Threat to navigation

ICD Warning

Swallowing risk

Handling rules

Threat to electronics

Do not drill into magnets

Do not overheat magnets

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C