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

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

search holder

Catalog no 210433

GTIN/EAN: 5906301814085

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

200.00 zł with VAT / pcs + price for transport

162.60 zł net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
162.60 ZŁ
200.00 ZŁ
price from 10 pcs
152.84 ZŁ
188.00 ZŁ
price from 20 pcs
143.09 ZŁ
176.00 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Need advice?

Contact us by phone +48 888 99 98 98 or contact us via contact form the contact form page.
Specifications as well as structure of magnetic components can be reviewed with our modular calculator.

Same-day shipping for orders placed before 14:00.

💡 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 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 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 ~ ? 310.00 kg / 3040.06 N
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
remenance Br [min. - max.] ? 12.9-13.2 kGs
remenance Br [min. - max.] ? 1290-1320 mT
coercivity bHc ? 10.8-12.0 kOe
coercivity bHc ? 860-955 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 40-42 BH max MGOe
energy density [min. - max.] ? 318-334 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

Material specification

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: 210433-2026
Measurement Calculator

Force (pull)

Magnetic Field

Simply populate one field, to let the tool fill in everything else instantly.

Check out also deals

MP 5x2.7/1.2x5 Z / N38 - ring magnet
Product available Ships today (order by 14:00)

MP 5x2.7/1.2x5 Z / N38 - ring magnet

0.836 zł brutto / pcs
UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
Product available Ships today (order by 14:00)

UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread

7.38 zł brutto / pcs
UMGW 25x17x8 [M5] GW / N38 - magnetic holder internal thread
Product available Ships today (order by 14:00)

UMGW 25x17x8 [M5] GW / N38 - magnetic holder internal thread

11.91 zł brutto / pcs
UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread
Product available Ships today (order by 14:00)

UMGZ 42x20x9 [M8] GZ / N38 - magnetic holder external thread

33.96 zł brutto / pcs
The best choice are magnets in thick, chrome-plated housings dedicated to water applications. Model UMP 75x25 [M10x3] GW F200 GOLD Lina / N42 offers an optimal weight-to-pull force ratio, which is important for repeated throwing. The choice depends on whether you plan to throw from the shore (double-sided) or from a bridge (single-sided).
The double-sided model attracts from above and below, increasing the chance of hooking a find. The side eyelet ensures the magnet doesn't stand sideways or "on edge" during pulling. The double-sided version increases search efficiency by 100%.
The magnet is glued into a solid steel cup and sealed with epoxy resin, protecting it from water. The housing significantly increases lifespan but does not make the magnet completely indestructible. After each fishing trip, we recommend rinsing the magnet with fresh water and drying it.
Check the product title and description to see if you are buying just the magnet or the XL set. 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.
This force applies to perfect adherence with the entire surface to a smooth, clean steel plate with a min. thickness of 20mm. Dirt, rust, paint, and algae create a distance that weakens the magnet by even 70-80%. Therefore, to pull objects weighing 10kg from the water, a magnet with a capacity of 200-300kg is often needed.
If you find a dangerous object (unexploded ordnance) or an antique, you have a legal obligation to report it to appropriate services (Police, conservator). We recommend familiarizing yourself with current local regulations and heritage protection laws.
By choosing the Dhit brand, you get a higher quality standard and real N52 grade for the average cost.
Most competitor mounts have thin casings that deform during the first hard impact against concrete or rocks.
It is worth remembering that the same magnet used by the side hook often has only a fraction of strength instead of the declared 200 kg. The Dhit brand guarantees honest data by providing the real parameters of the magnet, so you avoid disappointment during treasure hunting.
{Unlike anonymous sellers, Dhit provides full support and instant warranty help, which gives peace of mind after the transaction. Don't risk it with unknown goods, it is better to choose proven gear that cares about the happiness of searcher.

Strengths and weaknesses of Nd2Fe14B magnets.

Strengths

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
  • They are extremely resistant to demagnetization induced by external field influence,
  • In other words, due to the aesthetic layer of gold, the element looks attractive,
  • Neodymium magnets deliver maximum magnetic induction on a contact point, which ensures high operational effectiveness,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Possibility of precise creating and optimizing to atypical needs,
  • Key role in modern industrial fields – they are used in HDD drives, motor assemblies, precision medical tools, also technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in compact constructions

Disadvantages

What to avoid - cons of neodymium magnets: weaknesses and usage proposals
  • Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • Neodymium magnets decrease their force 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
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Limited ability of producing threads in the magnet and complicated forms - recommended is casing - magnet mounting.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Maximum lifting force for a neodymium magnet – what it depends on?

Magnet power was defined for the most favorable conditions, assuming:
  • using a base made of mild steel, functioning as a circuit closing element
  • whose thickness is min. 10 mm
  • characterized by even structure
  • under conditions of ideal adhesion (metal-to-metal)
  • under perpendicular force direction (90-degree angle)
  • at room temperature

Lifting capacity in real conditions – factors

Bear in mind that the working load will differ subject to the following factors, starting with the most relevant:
  • Clearance – the presence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Angle of force application – highest force is reached only during perpendicular pulling. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Metal type – not every steel reacts the same. Alloy additives worsen the attraction effect.
  • Base smoothness – the smoother and more polished the surface, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
  • Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets
Adults only

Strictly store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets clamping inside the body are tragic.

Caution required

Handle magnets consciously. Their huge power can surprise even experienced users. Plan your moves and respect their power.

Fire risk

Mechanical processing of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Demagnetization risk

Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

GPS and phone interference

A strong magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.

Warning for allergy sufferers

Medical facts indicate that nickel (standard magnet coating) is a potent allergen. If you have an allergy, refrain from touching magnets with bare hands or opt for versions in plastic housing.

Finger safety

Pinching hazard: The pulling power is so immense that it can result in hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Safe distance

Avoid bringing magnets near a wallet, laptop, or screen. The magnetic field can permanently damage these devices and erase data from cards.

ICD Warning

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Protective goggles

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.

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