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UMP 29x10 [M5] GW - search holder

search holder

Catalog no 210230

GTIN/EAN: 5906301813903

Load capacity 32.00 kg / 313.81 N
Diameter Ø
29 mm [±1 mm]
Height
10 mm [±1 mm]
Weight
0.1 g
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view properties »

8.54 zł net / pcs

10.50 zł with VAT (23% VAT) / pcs

price for transport

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Frequently asked questions

What rope length is best for deeper water?
Choose the length for the site and the retrieval method rather than the magnet's nominal pull rating. Allow for abrasion at the bank and check the rope, knot and attachment point as a complete set.
Where should I buy a fishing magnet, and what should I check?
Look for a product card stating the magnet grade, measured pull force and test conditions. Compare the ratings of the rope and connectors too; a large number in the magnet's name does not describe the capacity of the entire set.
What pull rating is suitable for magnet fishing in a river?
In a river, contact angle, surface condition and water movement affect the grip. All F-series models are double-sided. Compare vertical and side pull for the specific model; double-sided does not mean 360°.
Can I buy a complete starter set for magnet fishing?
Check whether the selected offer includes the magnet, rope and connectors, and whether each component has suitable specifications. Follow local safety rules and use protective equipment appropriate for the site.
Which rope can be paired with a magnet rated at several hundred kilograms?
Check the rated capacity of every component: rope, knot, shackle and eyelet. The weakest component limits the set. F200 GOLD has approximately 250 kg vertical pull and 38 kg side pull. Rope sets normally include a blue rope from a Polish manufacturer, 8 mm in diameter and 25 m long. Diameter alone does not determine rope strength.
How is a fishing magnet different from an ordinary magnetic holder?
Fishing holders provide attachment points for an eyelet and rope. All F-series models have magnets on both faces and both faces attract metal. Check the threads, coating and operating conditions of the specific model.
Will the rope be the first component to fail with a heavy find?
Not necessarily. The knot, shackle, thread or magnetic contact may limit the set first. Compare the ratings of all components and remember that an angled pull can detach the magnet before the rope reaches its rated load.
What should I look for in a shop selling fishing magnets?
Check availability, detailed product specifications, test conditions for pull force and the possibility of buying replacement accessories. Compare the whole set rather than just its advertised maximum pull force.
What does F mean in a model name? Does F200 mean a 200 kg pull rating?
F is a model designation, not a pull rating. Confirmed vertical / side pull values: F200 and F200 GOLD — approximately 250 / 38 kg; F200 PLATINIUM N52 — 310 / approximately 61 kg; new F300 — 330 / 58 kg; old F300 — approximately 360 / 64 kg; F200 GOLD DUAL — approximately 610 / 76–82 kg. The old F600 with a top M12 eyelet and side M10 threads has approximately 650 kg vertical pull. Contact conditions affect the actual grip.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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💡 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 dimensions and grade – Compare the specifications of the exact model in the technical table. Thickness, material grade and geometry all affect holding force and field reach.
  • 🛡️ Protective coating – Check the coating specified for the product and match it to the working environment. Water, impacts and scratches can shorten the life of an inadequately protected magnet.
  • 🧲 Mounting and force direction – The mounting method affects the actual force of the assembly. Use components intended for the specific model and follow the recommendations on its product page.
  • 🧶 Accessory selection – If the product is used with a rope, shackle or hook, check the load rating of every component. The weakest component determines the safety of the complete assembly.
  • 🚀 Choose using comparable data: Each product page lists the magnet grade, dimensions, coating and measured holding force. Compare models using the same parameters and test conditions.

Invest in solid equipment and enjoy the results!

Detailed specification - UMP 29x10 [M5] GW - search holder

Specification / characteristics - UMP 29x10 [M5] GW - search holder

properties
properties values
Cat. no. 210230
GTIN/EAN 5906301813903
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 29 mm [±1 mm]
Height 10 mm [±1 mm]
Weight 0.1 g
Load capacity ~ ? 32.00 kg / 313.81 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 310 °C
Curie Temperature TF 590 °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
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)
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: 210230-2026
Quick Unit Converter

Force (pull)

Field Strength

Just complete one field, to let the calculator fill in the rest for you.

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All F-series holders have magnets on both faces and both faces attract metal. Choose by weight and retrieval method. F200 / F200 GOLD: approximately 250 kg vertical pull and 38 kg side pull. F200 PLATINIUM N52: 310 kg vertical pull and approximately 61 kg side pull. The laboratory pull rating is not the weight of any object recoverable from water.
All F models are double-sided. DUAL means two connected F200 holders: approximately 610 kg vertical pull and 76–82 kg side pull. Use a side eyelet for dragging and a top eyelet for vertical retrieval. The new F300 has M10 threads throughout; the old F300 has a top M10 thread and side M8 threads. Double-sided does not mean 360°.
Our holders have a thick steel housing covered with an anti-corrosion layer (chrome, nickel, zinc). Despite solid construction, neodymium is a brittle material and can chip upon very strong impact (e.g., against concrete). 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. 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. Dirt, rust, paint, and algae create a distance that weakens the magnet by even 70-80%. 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. We recommend familiarizing yourself with current local regulations and heritage protection laws.
By selecting the Dhit brand, you receive a higher quality standard and true magnetic power for the same market price.
Most competitor mounts have thin casings that deform during the any strong impact against concrete or rocks.
You should know that the identical magnet used by the lateral point often has only a fraction of strength instead of the declared 200 kg. Crucially, in the entire internet, there are virtually no videos demonstrating the actual strength of competitor products on the lateral attachment.
GOLD search mounts are available in several variants for different conditions. Compare the dimensions, mounting points and pull forces in the product cards before choosing a model.

Advantages as well as disadvantages of rare earth magnets.

Strengths

Besides their remarkable strength, neodymium magnets offer the following advantages:
  • They do not lose magnetism, even over approximately ten years – the reduction in strength is only ~1% (theoretically),
  • They are noted for resistance to demagnetization induced by external field influence,
  • Thanks to the shiny finish, the surface of nickel, gold-plated, or silver gives an visually attractive appearance,
  • The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures approaching 230°C and above...
  • Thanks to the option of flexible forming and adaptation to specialized projects, NdFeB magnets can be modeled in a wide range of geometric configurations, which makes them more universal,
  • Fundamental importance in modern industrial fields – they are commonly used in magnetic memories, electromotive mechanisms, medical devices, also complex engineering applications.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Cons

Problematic aspects of neodymium magnets and proposals for their use:
  • At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Heat sensitivity: observe the temperature specified for this product. Overheating may permanently weaken the magnet.
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in creating threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
  • Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets can complicate diagnosis medical in case of swallowing.
  • Due to complex production process, their price is higher than average,

Lifting parameters

Maximum magnetic pulling force – what it depends on?

Breakaway force was determined for the most favorable conditions, taking into account:
  • on a block made of structural steel, optimally conducting the magnetic flux
  • with a cross-section minimum 10 mm
  • with a surface cleaned and smooth
  • under conditions of gap-free contact (surface-to-surface)
  • during pulling in a direction vertical to the plane
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

In real-world applications, the actual holding force is determined by several key aspects, presented from crucial:
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Load vector – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
  • Base massiveness – insufficiently thick plate does not close the flux, causing part of the power to be escaped into the air.
  • Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
  • Surface quality – the smoother and more polished the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate decreases the load capacity.

Safe handling of neodymium magnets
Fire risk

Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.

Thermal limits

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

Bone fractures

Large magnets can smash fingers instantly. Never put your hand between two strong magnets.

Safe distance

Do not bring magnets close to a wallet, laptop, or screen. The magnetism can permanently damage these devices and wipe information from cards.

Danger to pacemakers

Warning for patients: Powerful magnets affect electronics. Maintain at least 30 cm distance or request help to work with the magnets.

Safe operation

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

Protective goggles

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Keep away from children

Always store magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are tragic.

Impact on smartphones

A strong magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Maintain magnets close to a device to avoid breaking the sensors.

Avoid contact if allergic

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, immediately stop working with magnets and wear gloves.

Security! Details about hazards in the article: Safety of working with magnets.