![Fishing magnet UMP 79x50 [M8] GW - GOLD Series](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Fishing magnet UMP 79x50 [M8] GW - GOLD Series")
![UMP 79x50 [M8] GW - search holder](https://cdn3.dhit.pl/graphics/products/ump79x50-rib.jpg)
![UMP 79x50 [M8] GW - search holder - ujęcie 2](https://cdn3.dhit.pl/graphics/products/ump79x50-din.jpg)
UMP 79x50 [M8] GW - search holder
search holder
Catalog no 210260
GTIN/EAN: 5906301813934
Diameter Ø
79 mm [±1 mm]
Height
50 mm [±1 mm]
Weight
1.95 g
Load capacity
340.00 kg / 3334.26 N
Coating
[NiCuNi] Nickel
270.00 ZŁ with VAT / pcs + price for transport
219.51 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us now
+48 888 99 98 98
if you prefer send us a note through
contact form
the contact page.
Specifications as well as form of a magnet can be tested using our
online calculation tool.
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 details - UMP 79x50 [M8] GW - search holder
Specification / characteristics - UMP 79x50 [M8] GW - search holder
| properties | values |
|---|---|
| Cat. no. | 210260 |
| GTIN/EAN | 5906301813934 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 79 mm [±1 mm] |
| Height | 50 mm [±1 mm] |
| Weight | 1.95 g |
| Load capacity ~ ? | 340.00 kg / 3334.26 N |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±1 mm |
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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
![AM ucho małe [M8] - magnetic accessories](https://cdn3.dhit.pl/graphics/products/am-ucho-małe-m8-zud.jpg "AM ucho małe [M8] - magnetic accessories")
Strengths as well as weaknesses of Nd2Fe14B magnets.
Strengths
- They do not lose power, even after approximately ten years – the reduction in power is only ~1% (based on measurements),
- They show high resistance to demagnetization induced by external field influence,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- Magnetic induction on the surface of the magnet turns out to be extremely intense,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures reaching 230°C and above...
- Possibility of detailed creating and adjusting to defined requirements,
- Wide application in electronics industry – they serve a role in mass storage devices, drive modules, medical devices, and complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Weaknesses
- At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Due to limitations in realizing nuts and complex shapes in magnets, we recommend using casing - magnetic mount.
- Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these devices are able to complicate diagnosis medical when they are in the body.
- With mass production the cost of neodymium magnets is a challenge,
Lifting parameters
Maximum lifting capacity of the magnet – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic field
- whose transverse dimension reaches at least 10 mm
- with an ground touching surface
- under conditions of gap-free contact (metal-to-metal)
- for force applied at a right angle (pull-off, not shear)
- at room temperature
Determinants of practical lifting force of a magnet
- Clearance – existence of any layer (rust, dirt, gap) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of nominal force).
- Steel thickness – too thin plate does not close the flux, causing part of the flux to be lost into the air.
- Metal type – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
- Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity was determined with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate decreases the holding force.
Precautions when working with neodymium magnets
Health Danger
Patients with a ICD have to maintain an absolute distance from magnets. The magnetism can disrupt the functioning of the life-saving device.
Hand protection
Big blocks can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.
Dust is flammable
Dust created during cutting of magnets is self-igniting. Do not drill into magnets without proper cooling and knowledge.
Cards and drives
Very strong magnetic fields can destroy records on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.
Product not for children
Adult use only. Small elements can be swallowed, leading to severe trauma. Keep away from children and animals.
Shattering risk
Protect your eyes. Magnets can explode upon uncontrolled impact, launching shards into the air. Wear goggles.
Impact on smartphones
Note: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your phone, device, and GPS.
Metal Allergy
A percentage of the population experience a contact allergy to Ni, which is the standard coating for neodymium magnets. Extended handling can result in an allergic reaction. We strongly advise use safety gloves.
Operating temperature
Standard neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. This process is irreversible.
Respect the power
Handle with care. Neodymium magnets attract from a long distance and connect with huge force, often quicker than you can react.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
Rate the product
Your rating