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UMP 75x24 [M8+M10] GW F 200 kg - search holder

search holder

Catalog no 210336

GTIN/EAN: 5906301813958

Diameter Ø

75 mm [±1 mm]

Height

24 mm [±1 mm]

Weight

900 g

Load capacity

280.00 kg / 2745.86 N

Coating

[NiCuNi] Nickel

see specifications »

200.00 ZŁ with VAT / pcs + price for transport

162.60 ZŁ net + 23% VAT / pcs

bulk discounts:

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Carbon Footprint – environmental impact GPSR Regulation – product safety
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Call us now +48 888 99 98 98 otherwise let us know via contact form the contact form page.
Strength and structure of a magnet can be tested with our our magnetic calculator.

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💡 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 specification of the product - UMP 75x24 [M8+M10] GW F 200 kg - search holder

Specification / characteristics - UMP 75x24 [M8+M10] GW F 200 kg - search holder

properties
properties values
Cat. no. 210336
GTIN/EAN 5906301813958
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 900 g
Load capacity ~ ? 280.00 kg / 2745.86 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°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
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: 210336-2026
Magnet Unit Converter
Magnet pull force
Field Strength
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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. 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%.
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. 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.
It is a technical parameter defining perpendicular break force, not the weight of an object in water. 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.
It is the smartest investment because for the identical price, you obtain professional-grade equipment that will serve you for many seasons than budget alternatives.
Consequently, despite the affordable cost, the mechanical durability of the GOLD mount positions it far ahead of other brands.
It is worth remembering that the identical mount used by the lateral point often has as little as a fraction of strength instead of the promised 200 kg. The Dhit brand focuses on honest data by stating the actual capabilities of the gear, so you can be sure during real field work.
{By choosing GOLD mounts, you bet on Polish engineering that knows the conditions of local rivers and lakes. Instead of risking with random brands, it is better to choose proven gear that cares about the satisfaction of every user.

Advantages as well as disadvantages of rare earth magnets.

Advantages

Besides their immense field intensity, neodymium magnets offer the following advantages:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
  • They are resistant to demagnetization induced by external disturbances,
  • In other words, due to the glossy finish of nickel, the element becomes visually attractive,
  • Magnets have impressive magnetic induction on the active area,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to flexibility in shaping and the capacity to customize to individual projects,
  • Key role in future technologies – they are commonly used in mass storage devices, brushless drives, diagnostic systems, also modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in compact constructions

Disadvantages

Disadvantages of neodymium magnets:
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • When exposed to humidity, magnets start to 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.
  • Due to limitations in creating nuts and complex shapes in magnets, we recommend using casing - magnetic mount.
  • Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small components of these devices can disrupt the diagnostic process medical after entering the body.
  • Due to expensive raw materials, their price is higher than average,

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

The specified lifting capacity represents the peak performance, measured under ideal test conditions, meaning:
  • with the application of a yoke made of special test steel, ensuring full magnetic saturation
  • whose thickness is min. 10 mm
  • with a surface cleaned and smooth
  • with total lack of distance (no paint)
  • under perpendicular force direction (90-degree angle)
  • in stable room temperature

Practical lifting capacity: influencing factors

Holding efficiency impacted by working environment parameters, including (from most important):
  • Distance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
  • Load vector – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Material type – the best choice is pure iron steel. Hardened steels may attract less.
  • Base smoothness – the more even the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
  • Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safe handling of NdFeB magnets
Threat to navigation

Remember: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your mobile, tablet, and navigation systems.

Immense force

Be careful. Neodymium magnets act from a distance and connect with massive power, often quicker than you can react.

Magnet fragility

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Clashing of two magnets will cause them shattering into shards.

Operating temperature

Avoid heat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).

Do not give to children

Always keep magnets away from children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are fatal.

Keep away from computers

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Nickel allergy

Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction occurs, cease working with magnets and wear gloves.

Medical interference

Patients with a ICD should keep an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.

Physical harm

Large magnets can smash fingers instantly. Under no circumstances put your hand betwixt two strong magnets.

Dust explosion hazard

Powder created during cutting of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Security! More info about risks in the article: Magnet Safety Guide.