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

UMP 94x40 [3xM10] GW F550 Silver Black / N52 - search holder - ujęcie 2

Product available Ships today (order by 14:00)

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

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

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%]

product specifications »

350.00 ZŁ with VAT / pcs + price for transport

284.55 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

284.55 ZŁ

350.00 ZŁ

price from 5 pcs

267.48 ZŁ

329.00 ZŁ

price from 10 pcs

250.40 ZŁ

308.00 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Call us +48 888 99 98 98 if you prefer contact us through request form the contact section.
Specifications and shape of a magnet can be calculated on our modular calculator.

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

💡 Guide: How to choose a decent magnet and not get ripped off?

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 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

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

Engineering data and GPSR

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: 210490-2026

Quick Unit Converter

Pulling force

Kilograms (kg)

Newtons (N)

lbs

Magnetic Induction

Tesla (T)

Just populate any input, and the calculator fill in the rest instantly.

UMGW 20x15x7 [M4] GW / N38 - magnetic holder internal thread

6.49 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

SMZR 25x175 / N52 - magnetic separator with handle

492.00 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 20x5x5 / N38 - lamellar magnet

2.76 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 20x10x1 / N38 - lamellar magnet

0.996 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. 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). 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. 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.

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). We recommend familiarizing yourself with current local regulations and heritage protection laws.

By selecting the Dhit brand, you get a higher quality standard and real N52 grade for the same market price.

The unique way of mounting the magnet in the Dhit housing builds a unified structure that absorbs impacts while fishing on rough surfaces.

It is worth remembering that the same mount pulled by the lateral point often has only 40 kg of strength instead of the declared 200 kg. Interestingly, in the web, there are virtually no videos testing the real side-pull force of other brands on the side hook.

{In contrast to competitors importing from China, Dhit provides full support and instant service assistance, which is crucial after the purchase. Every product is checked before shipping, which ensures that you receive equipment of the defect-free.

Pros and cons of rare earth magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:

They do not lose strength, even during nearly 10 years – the reduction in power is only ~1% (theoretically),
Magnets effectively protect themselves against demagnetization caused by ambient magnetic noise,
By covering with a decorative layer of silver, the element presents an proper look,
Magnetic induction on the surface of the magnet turns out to be impressive,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
Thanks to freedom in shaping and the capacity to modify to complex applications,
Versatile presence in high-tech industry – they find application in mass storage devices, brushless drives, advanced medical instruments, and technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a special holder, which not only secures them against impacts but also increases their 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 stability even at temperatures up to 230°C
They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited ability of making nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
Health risk related to microscopic parts of magnets are risky, in case of ingestion, which becomes key in the context of child health protection. Additionally, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
Due to neodymium price, their price is relatively high,

Holding force characteristics

Highest magnetic holding force – what affects it?

Magnet power is the result of a measurement for optimal configuration, taking into account:

using a plate made of mild steel, acting as a circuit closing element
with a thickness no less than 10 mm
with an polished contact surface
without the slightest clearance between the magnet and steel
under vertical force direction (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Impact of factors on magnetic holding capacity in practice

Please note that the magnet holding will differ influenced by elements below, in order of importance:

Gap (betwixt the magnet and the metal), since even a very small distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to paint, rust or debris).
Angle of force application – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Material type – ideal substrate is high-permeability steel. Cast iron may attract less.
Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Precautions when working with NdFeB magnets

Allergic reactions

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, immediately stop working with magnets and wear gloves.

Precision electronics

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

Hand protection

Large magnets can break fingers in a fraction of a second. Do not put your hand between two attracting surfaces.

This is not a toy

NdFeB magnets are not suitable for play. Swallowing multiple magnets may result in them attracting across intestines, which constitutes a direct threat to life and requires immediate surgery.

Do not underestimate power

Before starting, read the rules. Sudden snapping can break the magnet or injure your hand. Be predictive.

Data carriers

Avoid bringing magnets near a purse, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.

Fire risk

Dust created during grinding of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Pacemakers

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Protective goggles

Protect your eyes. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.

Thermal limits

Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.

Security! Looking for details? Read our article: Are neodymium magnets dangerous?

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

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

Magnetic properties of material N52

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Sustainability

Pulling force

Magnetic Induction

See also deals

UMGW 20x15x7 [M4] GW / N38 - magnetic holder internal thread

SMZR 25x175 / N52 - magnetic separator with handle

MPL 20x5x5 / N38 - lamellar magnet

MPL 20x10x1 / N38 - lamellar magnet

Pros and cons of rare earth magnets.

Strengths

Disadvantages

Holding force characteristics

Highest magnetic holding force – what affects it?

Impact of factors on magnetic holding capacity in practice

Precautions when working with NdFeB magnets

Allergic reactions

Precision electronics

Hand protection

This is not a toy

Do not underestimate power

Data carriers

Fire risk

Pacemakers

Protective goggles

Thermal limits

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C