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Neodymium magnets – most powerful on the market

Looking for huge power in small size? Our range includes complete range of various shapes and sizes. Perfect for for domestic applications, workshop and model making. Check our offer available immediately.

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Equipment for treasure hunters

Start your adventure with treasure salvaging! Our double-handle grips (F200, F400) provide safety guarantee and huge lifting capacity. Stainless steel construction and reinforced ropes are reliable in challenging water conditions.

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UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

search holder

Catalog no 210490

GTIN/EAN: 5906301814146

5.00

Diameter Ø

94 mm [±1 mm]

Height

40 mm [±1 mm]

Weight

2262 g

Magnetization Direction

↑ axial

Load capacity

650.00 kg / 6374.32 N

Coating

[Epoxy] Epoxy

Magnetic Flux

~ 11 000 Gauss [±5%]

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350.00 ZŁ with VAT / pcs + price for transport

284.55 ZŁ net + 23% VAT / pcs

bulk discounts:

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Call us +48 888 99 98 98 or drop us a message using contact form the contact page.
Force as well as form of a neodymium magnet can be verified using our our magnetic calculator.

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

💡 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 of the product - UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

Specification / characteristics - UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

properties
properties values
Cat. no. 210490
GTIN/EAN 5906301814146
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 94 mm [±1 mm]
Height 40 mm [±1 mm]
Weight 2262 g
Magnetization Direction ↑ axial
Load capacity ~ ? 650.00 kg / 6374.32 N
Coating [Epoxy] Epoxy
Series SilverBlack
Holder Type 2 sided
Material Type Structural steel S235 (ferrous)
Magnetic Flux ~ 11 000 Gauss [±5%]
Size/Mount Quantity 3xM10
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics UMP 94x40 [3xM10] GW F550 Silver Black / 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 and environmental data
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: 210490-2026
Magnet Unit Converter
Pulling force
Magnetic Induction
Input a figure in a single field to see the conversion for all other units right away.

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UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder
Product available Ships today (order by 14:00)

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder

350.00 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. For beginners, we recommend lighter single-sided models (F80-F200), for advanced users - heavier double-sided (Two-Side) ones.
The double-sided model attracts from above and below, increasing the chance of hooking a find. Top mounting works well when fishing from a bridge, pier, or well (vertical technique). Single-sided magnets are usually lighter and cheaper but less effective for long throws.
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. Maintenance (e.g., WD-40) prevents surface corrosion of the steel housing.
We offer both standalone holders and ready-made gift sets (depending on the selected option in the store). 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.
This force applies to perfect adherence with the entire surface to a smooth, clean steel plate with a min. thickness of 20mm. In a river, objects are often rusty, silted, or irregular in shape (e.g., pipes), which drastically reduces grip strength. 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.
Unlike many market offers, Dhit does not cut corners on materials, which translates into a clear advantage during treasure hunting.
As a result, despite the market price, the mechanical durability of the Dhit product puts it far ahead of the competition.
It is worth remembering that the same magnet pulled by the side hook often has as little as 40 kg of power instead of the promised 200 kg. Interestingly, in the web, it is hard to find recordings demonstrating the real side-pull force of other brands on the lateral attachment.
{By choosing GOLD mounts, you bet on Polish engineering that perfectly understands the specifics of local rivers and lakes. Instead of risking with unknown goods, it is better to choose the market leader that ensures the happiness of searcher.

Advantages and disadvantages of Nd2Fe14B magnets.

Benefits

Besides their remarkable field intensity, neodymium magnets offer the following advantages:
  • They do not lose strength, even over nearly 10 years – the reduction in lifting capacity is only ~1% (theoretically),
  • They are extremely resistant to demagnetization induced by external field influence,
  • By applying a decorative layer of gold, the element presents an modern look,
  • The surface of neodymium magnets generates a unique magnetic field – this is one of their assets,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to the possibility of accurate forming and customization to specialized solutions, neodymium magnets can be manufactured in a broad palette of forms and dimensions, which expands the range of possible applications,
  • Universal use in advanced technology sectors – they are utilized in mass storage devices, electric drive systems, diagnostic systems, also multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices

Disadvantages

Problematic aspects of neodymium magnets: tips and applications.
  • To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. 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 rust. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Limited possibility of creating nuts in the magnet and complex shapes - preferred is casing - magnetic holder.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. Additionally, small components of these products can 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

Holding force characteristics

Magnetic strength at its maximum – what affects it?

The lifting capacity listed is a result of laboratory testing performed under standard conditions:
  • on a block made of structural steel, optimally conducting the magnetic field
  • with a thickness no less than 10 mm
  • characterized by lack of roughness
  • with direct contact (no impurities)
  • for force acting at a right angle (pull-off, not shear)
  • in stable room temperature

Lifting capacity in practice – influencing factors

Holding efficiency is influenced by working environment parameters, such as (from priority):
  • Clearance – the presence of foreign body (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
  • Steel thickness – too thin sheet does not close the flux, causing part of the flux to be lost into the air.
  • Material type – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Plate texture – ground elements guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
  • Thermal environment – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.

H&S for magnets
Pinching danger

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

Material brittleness

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Keep away from computers

Very strong magnetic fields can destroy records on payment cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.

GPS Danger

Be aware: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.

Medical implants

For implant holders: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Warning for allergy sufferers

Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. If you have an allergy, prevent direct skin contact and choose versions in plastic housing.

Machining danger

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

Permanent damage

Control the heat. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Conscious usage

Use magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their force.

Do not give to children

Only for adults. Small elements can be swallowed, causing intestinal necrosis. Store out of reach of children and animals.

Security! More info about risks in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98