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UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder

search holder

Catalog no 210422

GTIN/EAN: 5906301814078

5.00
Load capacity 310.00 kg / 3040.06 N
Diameter Ø
75 mm [±1 mm]
Height
25 mm [±1 mm]
Weight
900 g
Side pull
61 kg
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 8 000 Gauss [±5%]

How we measure these parameters — certificates and measurements

product details »

219.51 zł net / pcs

270.00 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.

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!

Technical details - UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder

Specification / characteristics - UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder

properties
properties values
Cat. no. 210422
GTIN/EAN 5906301814078
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 ~ ? 310.00 kg / 3040.06 N
Side pull 61 kg
Coating [NiCuNi] Nickel
Series PLATINUM
Holder Type 2 sided
Material Type Structural steel S235 (ferrous)
Magnetic Flux ~ 8 000 Gauss [±5%]
Size/Mount Quantity 3xM10
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics UMP 75x25 [M10x3] GW F200 PLATINIUM / N52 - search holder
properties values units
Remanence Br ? 14.2-14.7 kGs
Remanence Br ? 1420-1470 mT
Coercivity bHc ? 10.8-12.5 kOe
Coercivity bHc ? 860-995 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 48-53 BH max MGOe
Energy product BHmax ? 380-422 BH max KJ/m
Maximum working temperature ? ≤ 60 °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: 210422-2026
Measurement Calculator

Magnet pull force

Field Strength

Simply fill in any input, to let the tool calculate 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°.
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.
Most of our starter kits are complete and ready to use. In the package, you will find everything needed: strong rope (e.g., 20m), gloves, and hardware. Using thread glue is crucial to not lose the magnet in silt.
The capacity given in the name (e.g., 310.00 kg) is the maximum value measured in laboratory conditions. 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.
If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). Magnet fishing is an eco-friendly hobby if you clean the river from trash and scrap.
It is the smartest investment because for the same money, you buy a premium mount that will last for many seasons than generic imports.
As a result, despite the affordable cost, the mechanical durability of the Dhit product puts it far ahead of other brands.
You should know that the identical magnet used by the lateral point can actually show as little as 40 kg of strength instead of the promised 200 kg. Crucially, in the entire internet, it is hard to find recordings 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 and disadvantages of neodymium magnets.

Advantages

Apart from their strong holding force, neodymium magnets have these key benefits:
  • They retain magnetic properties for around 10 years – the drop is just ~1% (based on simulations),
  • They retain their magnetic properties even under external field action,
  • A magnet with a metallic silver surface has better aesthetics,
  • They show high magnetic induction at the operating surface, which affects their effectiveness,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • In view of the potential of accurate molding and customization to specialized needs, neodymium magnets can be manufactured in a broad palette of geometric configurations, which expands the range of possible applications,
  • Significant place in modern technologies – they serve a role in computer drives, drive modules, precision medical tools, also other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Do not exceed this material temperature limit: 60°C. Overheating may permanently weaken the magnet.
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Possible danger resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

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

Holding force of 310.00 kg is a theoretical maximum value conducted under standard conditions:
  • with the use of a sheet made of special test steel, ensuring maximum field concentration
  • whose transverse dimension is min. 10 mm
  • characterized by even structure
  • with direct contact (no paint)
  • for force acting at a right angle (in the magnet axis)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

Real force is influenced by working environment parameters, such as (from most important):
  • Space between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Material composition – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
  • Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Thermal factor – high temperature reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.

Precautions when working with neodymium magnets
Heat warning

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Nickel allergy

Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, cease handling magnets and use protective gear.

Material brittleness

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

Fire risk

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Electronic devices

Do not bring magnets close to a wallet, computer, or screen. The magnetic field can destroy these devices and wipe information from cards.

Danger to the youngest

Strictly store magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are tragic.

Implant safety

For implant holders: Powerful magnets affect medical devices. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Crushing force

Large magnets can crush fingers instantly. Never place your hand between two strong magnets.

Compass and GPS

Note: neodymium magnets generate a field that confuses sensitive sensors. Keep a safe distance from your phone, device, and navigation systems.

Conscious usage

Before starting, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.

Danger! Details about risks in the article: Magnet Safety Guide.