← previous
next →
Product available Ships today (order by 14:00)

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%]

product parameters »

300.00 ZŁ with VAT / pcs + price for transport

243.90 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
243.90 ZŁ
300.00 ZŁ
price from 5 pcs
229.27 ZŁ
282.00 ZŁ
price from 15 pcs
214.63 ZŁ
264.00 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Hunting for a discount?

Pick up the phone and ask +48 888 99 98 98 otherwise send us a note by means of request form through our site.
Weight along with appearance of magnets can be estimated using our our magnetic calculator.

Order by 14:00 and we’ll ship today!

💡 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%
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: 210434-2026
Magnet Unit Converter
Force (pull)
Magnetic Field
Simply complete a single box, to let the tool compute everything else instantly.

Check out more proposals

MPL 30x20x10 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 30x20x10 / N38 - lamellar magnet

16.11 ZŁ brutto / pcs
MPL 10x10x3 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 10x10x3 / N38 - lamellar magnet

1.414 ZŁ brutto / pcs
UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder
Product available Ships today (order by 14:00)

UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder

300.00 ZŁ brutto / pcs
UMT 12x20 black / N38 - board holder
Product available Ships today (order by 14:00)

UMT 12x20 black / N38 - board holder

1.894 ZŁ brutto / pcs
It is worth betting on proven F200, F300, or F550 models from our offer, which guarantee real power. It is equipment that can handle pulling heavy and silted objects from the river bottom. 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. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. Single-sided magnets are usually lighter and cheaper but less effective for long throws.
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.
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. Using thread glue is crucial to not lose the magnet in silt.
The capacity given in the name (e.g., 365.00 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). It is worth acting responsibly, cleaning up after yourself, and caring for the environment by removing fished-out scrap.
Unlike other brands, Dhit uses the highest quality materials, which translates into a better results during treasure hunting.
Most competitor mounts have weak shells that crack during the any strong impact against underwater obstacles.
Many distributors use a trick by promoting the pull force tested only on the vertical mount. Crucially, in the entire internet, there are virtually no videos testing the actual strength of competitor products on the lateral attachment.
{By choosing Dhit, you support Polish engineering that perfectly understands the specifics of our waters. Every product is checked before delivery, which guarantees that you the set will be of the highest quality.

Strengths and weaknesses of neodymium magnets.

Advantages

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They retain magnetic properties for almost ten years – the drop is just ~1% (in theory),
  • They maintain their magnetic properties even under external field action,
  • Thanks to the metallic finish, the surface of nickel, gold-plated, or silver gives an visually attractive appearance,
  • Magnetic induction on the working layer of the magnet remains extremely intense,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of detailed creating as well as optimizing to individual applications,
  • Versatile presence in modern industrial fields – they find application in mass storage devices, brushless drives, medical equipment, also other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Weaknesses

Problematic aspects of neodymium magnets: weaknesses and usage proposals
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Due to limitations in creating threads and complex shapes in magnets, we propose using casing - magnetic holder.
  • Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what affects it?

The load parameter shown represents the limit force, obtained under ideal test conditions, namely:
  • using a base made of mild steel, functioning as a circuit closing element
  • whose transverse dimension is min. 10 mm
  • with an polished touching surface
  • under conditions of no distance (surface-to-surface)
  • for force applied at a right angle (in the magnet axis)
  • at temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

In practice, the actual holding force depends on many variables, listed from the most important:
  • Gap between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
  • Angle of force application – maximum parameter is available only during pulling at a 90° angle. The shear force of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Metal type – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
  • Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
  • Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was measured using a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Precautions when working with neodymium magnets
Medical interference

Patients with a pacemaker must maintain an safe separation from magnets. The magnetism can stop the functioning of the implant.

Skin irritation risks

Allergy Notice: The Ni-Cu-Ni coating contains nickel. If an allergic reaction appears, immediately stop handling magnets and wear gloves.

Keep away from children

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Store away from children and animals.

Magnets are brittle

Protect your eyes. Magnets can fracture upon violent connection, launching shards into the air. Wear goggles.

Safe operation

Exercise caution. Rare earth magnets attract from a long distance and connect with huge force, often faster than you can move away.

Threat to navigation

Be aware: neodymium magnets produce a field that interferes with sensitive sensors. Maintain a safe distance from your phone, device, and navigation systems.

Keep away from computers

Very strong magnetic fields can destroy records on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.

Maximum temperature

Do not overheat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).

Crushing risk

Mind your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!

Fire warning

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

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