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UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 - search holder

search holder

Catalog no 210433

GTIN/EAN: 5906301814085

5.00
Load capacity 250.00 kg / 2451.66 N
Diameter Ø
75 mm [±1 mm]
Height
25 mm [±1 mm]
Weight
900 g
Side pull
38 kg
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 8 000 Gauss [±5%]

How we measure these parameters — certificates and measurements

product parameters »

162.60 zł net / pcs

200.00 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

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Gross
price from 1 pcs
162.60 zł
200.00 zł
price from 10 pcs
152.84 zł
188.00 zł
price from 20 pcs
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176.00 zł

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.

Order by 14:00 and we’ll ship today!

💡 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!

Product card - UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 - search holder

Specification / characteristics - UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 - search holder

properties
properties values
Cat. no. 210433
GTIN/EAN 5906301814085
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 25 mm [±1 mm]
Weight 900 g
Load capacity ~ ? 250.00 kg / 2451.66 N
Side pull 38 kg
Coating [NiCuNi] Nickel
Series GOLD
Holder Type 2 sided
Material Type Structural steel S235 (ferrous)
Magnetic Flux ~ 8 000 Gauss [±5%]
Rope Length 25 m
Rope Capacity ~ 1595 kg
Rope Diameter Ø 8 mm
Gloves 1 pair
Size/Mount Quantity 3xM10
Manufacturing Tolerance ±1 mm

Magnetic properties of material N42

Specification / characteristics UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 - search holder
properties values units
Remanence Br ? 12.9-13.2 kGs
Remanence Br ? 1290-1320 mT
Coercivity bHc ? 10.8-12.0 kOe
Coercivity bHc ? 860-955 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 40-42 BH max MGOe
Energy product BHmax ? 318-334 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

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%

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: 210433-2026
Measurement Calculator

Pulling force

Magnetic Induction

Type your figure in one of the inputs, to see all other values convert instantly.

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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°.
This construction protects the brittle neodymium from direct impact against stones and the bottom. Despite solid construction, neodymium is a brittle material and can chip upon very strong impact (e.g., against concrete). 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.
This force applies to perfect adherence with the entire surface to a smooth, clean steel plate with a min. thickness of 20mm. 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.
Possessing and using a neodymium magnet to clean the bottom is generally legal, provided you are not searching for artifacts protected by law. It is worth acting responsibly, cleaning up after yourself, and caring for the environment by removing fished-out scrap.
It is the smartest investment because for the identical price, you obtain a premium mount that will serve you for much longer than generic imports.
A special technology of mounting the magnet in the protective cup creates a solid structure that dampens shocks while working on difficult, rocky bottoms.
Many distributors employ a tactic by advertising the power tested only on the top hook. Crucially, in the entire internet, it is hard to find recordings testing 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.

Pros and cons of Nd2Fe14B magnets.

Pros

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They do not lose magnetism, even during nearly ten years – the drop in lifting capacity is only ~1% (according to tests),
  • They possess excellent resistance to magnetic field loss due to opposing magnetic fields,
  • In other words, due to the glossy layer of nickel, the element gains visual value,
  • The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • In view of the potential of free shaping and adaptation to specialized projects, neodymium magnets can be modeled in a broad palette of geometric configurations, which expands the range of possible applications,
  • Huge importance in future technologies – they are commonly used in hard drives, drive modules, medical equipment, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions

Cons

Drawbacks and weaknesses of neodymium magnets: application proposals
  • At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complicated shapes in magnets, we propose using a housing - magnetic mechanism.
  • Health risk resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets are able to 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

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

The lifting capacity listed is a measurement result executed under standard conditions:
  • with the contact of a sheet made of special test steel, ensuring maximum field concentration
  • whose thickness reaches at least 10 mm
  • with a surface cleaned and smooth
  • without any clearance between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Effective lifting capacity is influenced by working environment parameters, including (from priority):
  • Gap between surfaces – every millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures lower magnetic permeability and lifting capacity.
  • Surface structure – the more even the surface, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
  • Thermal environment – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet and the plate lowers the holding force.

Safety rules for work with NdFeB magnets
Maximum temperature

Regular neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. This process is irreversible.

Warning for allergy sufferers

Certain individuals suffer from a sensitization to nickel, which is the typical protective layer for neodymium magnets. Frequent touching might lead to a rash. It is best to wear safety gloves.

Caution required

Handle with care. Rare earth magnets act from a distance and connect with huge force, often faster than you can react.

Pacemakers

For implant holders: Strong magnetic fields affect electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.

Choking Hazard

Neodymium magnets are not toys. Accidental ingestion of multiple magnets can lead to them attracting across intestines, which poses a severe health hazard and requires urgent medical intervention.

Bone fractures

Risk of injury: The attraction force is so immense that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Threat to electronics

Equipment safety: Strong magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Phone sensors

A strong magnetic field interferes with the functioning of compasses in smartphones and GPS navigation. Do not bring magnets near a smartphone to prevent damaging the sensors.

Fire risk

Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Risk of cracking

Neodymium magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets leads to them breaking into small pieces.

Safety First! Looking for details? Read our article: Are neodymium magnets dangerous?