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neodymium magnets

We offer red color magnets Nd2Fe14B - our offer. Practically all magnesy in our store are available for immediate purchase (check the list). See the magnet price list for more details check the magnet price list

Magnets for searching F300 GOLD

Where to buy very strong magnet? Magnet holders in solid and airtight steel casing are perfect for use in variable and difficult climate conditions, including during rain and snow more information

magnetic holders

Holders with magnets can be used to facilitate production processes, exploring underwater areas, or locating meteorites made of ore read...

Enjoy delivery of your order on the same day by 2:00 PM on business days.

Dhit sp. z o.o.
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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

200.00 with VAT / pcs + price for transport

162.60 ZŁ net + 23% VAT / pcs

bulk discounts:

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Not sure which magnet to buy?

Give us a call +48 22 499 98 98 otherwise drop us a message through form through our site.
Force and appearance of magnets can be verified using our magnetic mass calculator.

Same-day processing 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!

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 106 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²
Engineering data and GPSR
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)|Safety information|GPSR compliance}
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: 210336-2025
Quick Unit Converter
Force (Pull)

Magnetic Induction

Other products

For underwater searches, we recommend specialized holders from the GOLD series, designed for working in difficult conditions. 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).
Double-sided holders (Two-Side) have two active magnetic surfaces and two mounting holes. Side mounting is ideal for throwing from the shore, as the magnet drags flat along the bottom. 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). 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.
Most of our starter kits are complete and ready to use. A full set usually contains: magnet, polypropylene rope with appropriate strength, protective gloves, hook, and carabiner. Using thread glue is crucial to not lose the magnet in silt.
It is a technical parameter defining perpendicular break force, not the weight of an object in water. The magnet may slide on round elements (bicycle frame) due to the small contact area. 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). It is worth acting responsibly, cleaning up after yourself, and caring for the environment by removing fished-out scrap.
By selecting the Dhit brand, you get a higher quality standard and true magnetic power for the same market price.
As a result, despite the affordable cost, the mechanical durability of the GOLD mount puts it a step above other brands.
Many distributors employ a tactic by promoting the pull force tested only on the top hook. Crucially, in the entire internet, it is hard to find recordings demonstrating the actual strength of other brands on the lateral attachment.
{By choosing GOLD mounts, you support a local market leader that knows the conditions of local rivers and lakes. Don't risk it with random brands, stick with the market leader that ensures the satisfaction of every user.

Pros as well as cons of Nd2Fe14B magnets.

Benefits
Besides their exceptional magnetic power, neodymium magnets offer the following advantages:
  • They retain full power for around 10 years – the drop is just ~1% (based on simulations),
  • Neodymium magnets prove to be highly resistant to magnetic field loss caused by external magnetic fields,
  • A magnet with a smooth gold surface is more attractive,
  • They show high magnetic induction at the operating surface, making them more effective,
  • 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...
  • Possibility of accurate creating and modifying to atypical conditions,
  • Fundamental importance in modern industrial fields – they serve a role in HDD drives, electromotive mechanisms, medical devices, as well as complex engineering applications.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
Problematic aspects of neodymium magnets: tips and applications.
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. 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 resistant to moisture
  • We suggest casing - magnetic mount, due to difficulties in realizing threads inside the magnet and complicated shapes.
  • Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these devices are able to be problematic in diagnostics medical after entering the body.
  • With mass production the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum holding power of the magnet – what it depends on?
The load parameter shown refers to the peak performance, recorded under ideal test conditions, specifically:
  • with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
  • whose thickness equals approx. 10 mm
  • with a plane perfectly flat
  • under conditions of gap-free contact (metal-to-metal)
  • for force acting at a right angle (pull-off, not shear)
  • at ambient temperature approx. 20 degrees Celsius
What influences lifting capacity in practice
In practice, the actual lifting capacity is determined by many variables, listed from most significant:
  • Gap between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Steel grade – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Plate texture – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.

Safety rules for work with NdFeB magnets
Precision electronics

A strong magnetic field negatively affects the operation of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.

Protect data

Data protection: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).

Handling guide

Use magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.

This is not a toy

Strictly keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are life-threatening.

Fire warning

Machining of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Allergic reactions

Certain individuals experience a sensitization to Ni, which is the common plating for NdFeB magnets. Prolonged contact might lead to skin redness. We suggest use protective gloves.

Magnets are brittle

NdFeB magnets are ceramic materials, meaning they are fragile like glass. Collision of two magnets will cause them shattering into small pieces.

ICD Warning

For implant holders: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or ask another person to handle the magnets.

Finger safety

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

Heat sensitivity

Control the heat. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and pulling force.

Safety First! Details about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98