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

Product available Ships today (order by 14:00)

UMP 75x25 [M10x3] GW F200 GOLD / N42 - 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 210421

GTIN/EAN: 5906301814061

5.00

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

Magnetic Flux

~ 8 000 Gauss [±5%]

see parameters »

150.00 ZŁ with VAT / pcs + price for transport

121.95 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

121.95 ZŁ

150.00 ZŁ

price from 10 pcs

114.63 ZŁ

141.00 ZŁ

price from 25 pcs

107.32 ZŁ

132.00 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Give us a call +48 22 499 98 98 if you prefer send us a note via contact form our website.
Weight as well as structure of magnets can be estimated with our magnetic calculator.

Order by 14:00 and we’ll ship today!

💡 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 / N42 - search holder

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

properties

properties	values
Cat. no.	210421
GTIN/EAN	5906301814061
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%]
Size/Mount Quantity	3xM10
Manufacturing Tolerance	±1 mm

Magnetic properties of material N42

Specification / characteristics UMP 75x25 [M10x3] GW F200 GOLD / 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

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

Elemental analysis

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: 210421-2026

Measurement Calculator

Pulling force

Force in kg

Pounds (lbs)

Magnetic Field

Induction (Gs)

Input a figure in just one slot to see the conversion for the other units at once.

View also deals

Product available Ships today (order by 14:00)

UMT 11x17 colorless / N38 - board holder

1.538 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 50x25x12 / N38 - lamellar magnet

45.51 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

SM 32x325 [2xM8] / N52 - magnetic separator

1045.50 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 15x3x6 / N38 - lamellar magnet

0.726 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).

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). 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.

We offer both standalone holders and ready-made gift sets (depending on the selected option in the store). 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.

It is a technical parameter defining perpendicular break force, not the weight of an object in water. 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.

Possessing and using a neodymium magnet to clean the bottom is generally legal, provided you are not searching for artifacts protected by law. Magnet fishing is an eco-friendly hobby if you clean the river from trash and scrap.

By selecting the Dhit brand, you receive a product of a significantly higher standard and real N52 grade for the same market price.

Dhit GOLD mounts feature heavy-duty, thick-walled steel that provides a true shield for the magnetic core.

Many distributors employ a tactic by advertising the pull force tested exclusively on the top hook. The Dhit brand focuses on honest data by providing the real parameters of the magnet, so you avoid disappointment during real field work.

{By choosing GOLD mounts, you support Polish engineering that knows the conditions of our waters. Every mount is individually inspected before delivery, which guarantees that you receive equipment of the defect-free.

Advantages and disadvantages of rare earth magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:

Their magnetic field remains stable, and after approximately 10 years it drops only by ~1% (according to research),
They maintain their magnetic properties even under close interference source,
A magnet with a metallic gold surface has an effective appearance,
The surface of neodymium magnets generates a powerful magnetic field – this is one of their assets,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Possibility of detailed shaping as well as optimizing to individual applications,
Universal use in future technologies – they find application in HDD drives, brushless drives, medical equipment, also industrial machines.
Thanks to concentrated force, small magnets offer high operating force, in miniature format,

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
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Due to limitations in realizing threads and complicated shapes in magnets, we propose using casing - magnetic mount.
Health risk to health – tiny shards of magnets are risky, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these magnets are able to complicate diagnosis 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

Best holding force of the magnet in ideal parameters – what affects it?

The specified lifting capacity concerns the limit force, recorded under ideal test conditions, namely:

using a sheet made of mild steel, functioning as a ideal flux conductor
whose transverse dimension is min. 10 mm
characterized by even structure
under conditions of no distance (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at temperature approx. 20 degrees Celsius

Practical lifting capacity: influencing factors

During everyday use, the real power is determined by several key aspects, presented from crucial:

Clearance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material type – ideal substrate is high-permeability steel. Hardened steels may have worse magnetic properties.
Smoothness – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal conditions – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity was determined by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate decreases the load capacity.

Safe handling of NdFeB magnets

Crushing force

Watch your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Heat sensitivity

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

Nickel allergy

Studies show that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, avoid direct skin contact or opt for versions in plastic housing.

Magnets are brittle

Watch out for shards. Magnets can explode upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

No play value

Product intended for adults. Small elements can be swallowed, causing severe trauma. Keep out of reach of kids and pets.

Data carriers

Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Machining danger

Drilling and cutting of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Precision electronics

GPS units and mobile phones are extremely sensitive to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.

Warning for heart patients

Medical warning: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Conscious usage

Use magnets consciously. Their immense force can surprise even experienced users. Stay alert and do not underestimate their force.

Danger! Details about risks in the article: Safety of working with magnets.

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

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

Magnetic properties of material N42

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Elemental analysis

Ecology and recycling (GPSR)

Pulling force

Magnetic Field

View also deals

UMT 11x17 colorless / N38 - board holder

MPL 50x25x12 / N38 - lamellar magnet

SM 32x325 [2xM8] / N52 - magnetic separator

MPL 15x3x6 / N38 - lamellar magnet

Advantages and disadvantages of rare earth magnets.

Benefits

Disadvantages

Holding force characteristics

Best holding force of the magnet in ideal parameters – what affects it?

Practical lifting capacity: influencing factors

Safe handling of NdFeB magnets

Crushing force

Heat sensitivity

Nickel allergy

Magnets are brittle

No play value

Data carriers

Machining danger

Precision electronics

Warning for heart patients

Conscious usage

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C