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UMP 107x40 [M8+M10] GW F400 Lina / N38 - search holder

search holder

Catalog no 210384

GTIN/EAN: 5906301814030

5.00

Diameter Ø

107 mm [±1 mm]

Height

40 mm [±1 mm]

Weight

2350 g

Load capacity

480.00 kg / 4707.19 N

Coating

[NiCuNi] Nickel

Magnetic Flux

~ 8 000 Gauss [±5%]

technical specifications »

450.00 ZŁ with VAT / pcs + price for transport

365.85 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 888 99 98 98 otherwise send us a note by means of request form through our site.
Weight and structure of neodymium magnets can be estimated on 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 of the product - UMP 107x40 [M8+M10] GW F400 Lina / N38 - search holder

Specification / characteristics - UMP 107x40 [M8+M10] GW F400 Lina / N38 - search holder

properties
properties values
Cat. no. 210384
GTIN/EAN 5906301814030
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 107 mm [±1 mm]
Height 40 mm [±1 mm]
Weight 2350 g
Load capacity ~ ? 480.00 kg / 4707.19 N
Coating [NiCuNi] Nickel
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 1xM8/2xM10
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMP 107x40 [M8+M10] GW F400 Lina / N38 - search holder
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 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%
Environmental data
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: 210384-2026
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It is worth betting on proven F200, F300, or F550 models from our offer, which guarantee real power. Model UMP 107x40 [M8+M10] GW F400 Lina / N38 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).
Double-sided holders (Two-Side) have two active magnetic surfaces and two mounting holes. 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%.
Our holders have a thick steel housing covered with an anti-corrosion layer (chrome, nickel, zinc). Avoid throwing the magnet against bridge pillars or hard obstacles. 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. 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. 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 best value because for the identical price, you obtain professional-grade equipment that will serve you for much longer than budget alternatives.
As a result, despite the affordable cost, the lifespan of the Dhit product positions it a step above the competition.
It is worth remembering that the same mount used by the lateral point often has only 40 kg of strength instead of the promised 200 kg. Crucially, in the entire internet, there are virtually no recordings demonstrating the real side-pull force of competitor products on the lateral attachment.
{In contrast to anonymous sellers, Dhit provides full support and instant warranty help, which gives peace of mind after the transaction. Every mount is checked before shipping, which guarantees that you receive equipment of the highest quality.

Pros and cons of neodymium magnets.

Benefits

Besides their tremendous magnetic power, neodymium magnets offer the following advantages:
  • They retain full power for almost ten years – the drop is just ~1% (based on simulations),
  • Neodymium magnets prove to be exceptionally resistant to loss of magnetic properties caused by magnetic disturbances,
  • In other words, due to the metallic surface of silver, the element is aesthetically pleasing,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures approaching 230°C and above...
  • Possibility of exact modeling and modifying to complex requirements,
  • Wide application in high-tech industry – they are commonly used in data components, electric motors, advanced medical instruments, and multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in small systems

Disadvantages

Disadvantages of neodymium magnets:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We suggest a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
  • Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Additionally, small elements of these devices can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what it depends on?

The lifting capacity listed is a theoretical maximum value performed under standard conditions:
  • on a base made of structural steel, perfectly concentrating the magnetic flux
  • possessing a massiveness of min. 10 mm to ensure full flux closure
  • with a plane free of scratches
  • with direct contact (without coatings)
  • during pulling in a direction vertical to the mounting surface
  • at conditions approx. 20°C

Impact of factors on magnetic holding capacity in practice

During everyday use, the actual lifting capacity depends on many variables, ranked from most significant:
  • Air gap (between the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) can cause a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Direction of force – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Material composition – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
  • Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.

Safety rules for work with NdFeB magnets
Allergic reactions

It is widely known that nickel (standard magnet coating) is a strong allergen. If you have an allergy, avoid touching magnets with bare hands or choose versions in plastic housing.

Danger to pacemakers

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

This is not a toy

Only for adults. Small elements can be swallowed, causing serious injuries. Store away from children and animals.

Permanent damage

Keep cool. Neodymium magnets are susceptible to heat. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Data carriers

Data protection: Strong magnets can ruin payment cards and delicate electronics (heart implants, medical aids, timepieces).

Fire warning

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this may cause fire.

Serious injuries

Big blocks can smash fingers instantly. Do not put your hand betwixt two strong magnets.

Fragile material

NdFeB magnets are ceramic materials, meaning they are very brittle. Collision of two magnets will cause them shattering into shards.

Compass and GPS

Note: rare earth magnets generate a field that confuses sensitive sensors. Maintain a separation from your mobile, device, and GPS.

Do not underestimate power

Use magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and respect their power.

Attention! Want to know more? Read our article: Why are neodymium magnets dangerous?