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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?
Pick up the phone and ask
+48 888 99 98 98
otherwise contact us using
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Lifting power as well as shape of a magnet can be checked on our
online calculation tool.
Orders submitted before 14:00 will be dispatched today!
💡 Guide: How to choose a decent magnet and not get ripped off?
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 parameters of the product - 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 |
Material specification
| 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 |
See also products
Advantages as well as disadvantages of neodymium magnets.
Benefits
- They do not lose magnetism, even over around ten years – the reduction in strength is only ~1% (based on measurements),
- They maintain their magnetic properties even under strong external field,
- By covering with a shiny layer of nickel, the element gains an nice look,
- Magnetic induction on the working part of the magnet remains exceptional,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of accurate creating as well as optimizing to defined conditions,
- Key role in advanced technology sectors – they serve a role in magnetic memories, motor assemblies, medical devices, and other advanced devices.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Cons
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic mechanism, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these products can disrupt the diagnostic process medical after entering the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Maximum lifting capacity of the magnet – what affects it?
- with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- with a thickness no less than 10 mm
- characterized by smoothness
- without the slightest clearance between the magnet and steel
- under axial application of breakaway force (90-degree angle)
- at ambient temperature approx. 20 degrees Celsius
Lifting capacity in real conditions – factors
- Clearance – existence of any layer (rust, dirt, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
- Plate texture – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
- Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, however under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.
Warnings
Danger to pacemakers
Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.
Nickel coating and allergies
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction occurs, cease working with magnets and wear gloves.
No play value
Adult use only. Tiny parts pose a choking risk, leading to serious injuries. Store out of reach of children and animals.
Physical harm
Pinching hazard: The pulling power is so great that it can cause blood blisters, crushing, and even bone fractures. Protective gloves are recommended.
Magnetic media
Avoid bringing magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.
Protective goggles
Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Wear goggles.
Do not drill into magnets
Dust created during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
Threat to navigation
GPS units and smartphones are highly sensitive to magnetism. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Thermal limits
Do not overheat. NdFeB magnets are susceptible to temperature. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).
Powerful field
Exercise caution. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.
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
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