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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

technical specifications »

200.00 ZŁ with VAT / pcs + price for transport

162.60 ZŁ net + 23% VAT / pcs

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💡 Guide: How to choose a decent magnet and not get ripped off?

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!

Detailed specification - 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
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: 210336-2026
Quick Unit Converter
Pulling force
Magnetic Induction
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The best choice are magnets in thick, chrome-plated housings dedicated to water applications. Model UMP 75x24 [M8+M10] GW F 200 kg offers an optimal weight-to-pull force ratio, which is important for repeated throwing. 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.
This construction protects the brittle neodymium from direct impact against stones and the bottom. Avoid throwing the magnet against bridge pillars or hard obstacles. 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.
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.
If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). We recommend familiarizing yourself with current local regulations and heritage protection laws.
It is the best value because for the identical price, you buy a premium mount that will last for many seasons than budget alternatives.
Consequently, despite the affordable cost, the mechanical durability of the GOLD mount puts it a step above the competition.
Many sellers use a trick by advertising the pull force tested exclusively on the top hook. Interestingly, in the entire internet, it is hard to find recordings demonstrating the actual strength of competitor products on the lateral attachment.
{By choosing GOLD mounts, you bet on a local market leader that perfectly understands the specifics of our waters. Instead of risking with random brands, stick with proven gear that cares about the happiness of every user.

Strengths as well as weaknesses of rare earth magnets.

Advantages

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They retain magnetic properties for nearly ten years – the loss is just ~1% (according to analyses),
  • Magnets perfectly resist against demagnetization caused by ambient magnetic noise,
  • A magnet with a shiny gold surface has better aesthetics,
  • Magnets have extremely high magnetic induction on the active area,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to flexibility in forming and the capacity to adapt to individual projects,
  • Versatile presence in electronics industry – they are commonly used in mass storage devices, electromotive mechanisms, medical equipment, also industrial machines.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Disadvantages

What to avoid - cons of neodymium magnets and proposals for their use:
  • At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets decrease their strength 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 durability even at temperatures up to 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 ability of creating nuts in the magnet and complex forms - preferred is a housing - magnet mounting.
  • Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Additionally, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Lifting parameters

Highest magnetic holding force – what it depends on?

The declared magnet strength represents the peak performance, obtained under optimal environment, specifically:
  • with the contact of a yoke made of special test steel, guaranteeing maximum field concentration
  • with a cross-section minimum 10 mm
  • with a surface cleaned and smooth
  • with direct contact (without impurities)
  • under vertical application of breakaway force (90-degree angle)
  • at standard ambient temperature

Lifting capacity in practice – influencing factors

Effective lifting capacity is affected by specific conditions, such as (from most important):
  • Distance – the presence of any layer (rust, tape, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
  • 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).

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

Safety rules for work with neodymium magnets
Electronic devices

Intense magnetic fields can destroy records on credit cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

Respect the power

Handle magnets with awareness. Their immense force can shock even professionals. Plan your moves and do not underestimate their power.

Finger safety

Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Phone sensors

Note: neodymium magnets produce a field that interferes with precision electronics. Keep a separation from your phone, device, and navigation systems.

Heat warning

Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. The loss of strength is permanent.

Eye protection

Neodymium magnets are sintered ceramics, which means they are very brittle. Clashing of two magnets leads to them cracking into shards.

Machining danger

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

Life threat

Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Keep away from children

Neodymium magnets are not suitable for play. Accidental ingestion of several magnets can lead to them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.

Metal Allergy

It is widely known that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, prevent direct skin contact and select encased magnets.

Important! Want to know more? Check our post: Are neodymium magnets dangerous?