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

search holder

Catalog no 210434

GTIN/EAN: 5906301814092

5.00

Diameter Ø

75 mm [±1 mm]

Height

25 mm [±1 mm]

Weight

900 g

Load capacity

365.00 kg / 3579.43 N

Coating

[NiCuNi] Nickel

Magnetic Flux

~ 10 000 Gauss [±5%]

check technical specifications »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety
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Pick up the phone and ask +48 888 99 98 98 or drop us a message through contact form the contact form page.
Strength as well as structure of a magnet can be estimated on our online calculation tool.

Orders placed before 14:00 will be shipped the same business day.

💡 Check why professionals choose Dhit over cheap substitutes

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!

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

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

properties
properties values
Cat. no. 210434
GTIN/EAN 5906301814092
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 ~ ? 365.00 kg / 3579.43 N
Coating [NiCuNi] Nickel
Series PLATINUM
Holder Type 2 sided
Material Type Structural steel S235 (ferrous)
Magnetic Flux ~ 10 000 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 N52

Specification / characteristics UMP 75x25 [M10x3] GW F200 PLATINIUM Lina / N52 - search holder
properties values units
remenance Br [min. - max.] ? 14.2-14.7 kGs
remenance Br [min. - max.] ? 1420-1470 mT
coercivity bHc ? 10.8-12.5 kOe
coercivity bHc ? 860-995 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 48-53 BH max MGOe
energy density [min. - max.] ? 380-422 BH max KJ/m
max. 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 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 specification and ecology
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: 210434-2026
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. This specific magnet ensures a laboratory lifting capacity of up to 365.00 kg, which translates into high effectiveness in water. 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. The double-sided version increases search efficiency by 100%.
This construction protects the brittle neodymium from direct impact against stones and the bottom. 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.
Check the product title and description to see if you are buying just the magnet or the XL set. We often add thread glue to secure the eyelet against unscrewing in water. We recommend always securing the thread with glue or tightening the eyelet firmly before first use.
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. Therefore, to pull objects weighing 10kg from the water, a magnet with a capacity of 200-300kg is often needed.
Possessing and using a neodymium magnet to clean the bottom is generally legal, provided you are not searching for artifacts protected by law. Magnet fishing is an eco-friendly hobby if you clean the river from trash and 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 market price, the mechanical durability of the GOLD mount puts it a step above the competition.
You should know that the same magnet used by the lateral point often has as little as a fraction of power instead of the declared 200 kg. GOLD mounts guarantees full transparency by providing the actual capabilities of the magnet, so you can be sure during treasure hunting.
{Unlike competitors importing from China, Dhit provides expert advice and instant service assistance, which gives peace of mind after the purchase. Instead of risking with random brands, it is better to choose the market leader that cares about the satisfaction of every user.

Advantages as well as disadvantages of neodymium magnets.

Pros

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They retain attractive force for around ten years – the drop is just ~1% (based on simulations),
  • Magnets perfectly resist against loss of magnetization caused by foreign field sources,
  • The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to present itself better,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
  • Possibility of exact creating as well as optimizing to defined conditions,
  • Significant place in electronics industry – they find application in hard drives, electromotive mechanisms, diagnostic systems, as well as modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in compact constructions

Cons

Drawbacks and weaknesses of neodymium magnets: application proposals
  • At very strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
  • Due to limitations in realizing nuts and complex shapes in magnets, we recommend using a housing - magnetic mechanism.
  • Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
  • Due to expensive raw materials, their price is higher than average,

Pull force analysis

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

Breakaway force was defined for optimal configuration, taking into account:
  • on a block made of structural steel, optimally conducting the magnetic field
  • possessing a massiveness of at least 10 mm to ensure full flux closure
  • with a surface free of scratches
  • with zero gap (no impurities)
  • during detachment in a direction vertical to the plane
  • in neutral thermal conditions

Magnet lifting force in use – key factors

Effective lifting capacity is influenced by specific conditions, including (from most important):
  • Space between magnet and steel – every millimeter of separation (caused e.g. by veneer or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
  • Load vector – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly many times smaller (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.
  • Plate material – low-carbon steel gives the best results. Higher carbon content lower magnetic permeability and holding force.
  • Plate texture – smooth surfaces ensure maximum contact, which increases force. Uneven metal reduce efficiency.
  • Thermal factor – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safe handling of NdFeB magnets
Caution required

Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Beware of splinters

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Threat to electronics

Powerful magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Heat warning

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.

Serious injuries

Danger of trauma: The pulling power is so immense that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.

Dust is flammable

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.

Medical implants

Individuals with a heart stimulator have to maintain an large gap from magnets. The magnetism can interfere with the functioning of the implant.

Phone sensors

GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Product not for children

Product intended for adults. Tiny parts can be swallowed, leading to serious injuries. Keep out of reach of children and animals.

Allergic reactions

Some people experience a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Frequent touching may cause skin redness. We recommend wear safety gloves.

Caution! Learn more about hazards in the article: Magnet Safety Guide.