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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:
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💡 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 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 |
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 |
Other products
Pros and cons of neodymium magnets.
Advantages
- They do not lose magnetism, even during approximately ten years – the decrease in lifting capacity is only ~1% (based on measurements),
- They do not lose their magnetic properties even under close interference source,
- A magnet with a metallic gold surface has an effective appearance,
- They show high magnetic induction at the operating surface, making them more effective,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
- Thanks to freedom in constructing and the ability to adapt to complex applications,
- Key role in electronics industry – they are commonly used in magnetic memories, brushless drives, advanced medical instruments, as well as complex engineering applications.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Cons
- At very strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets decrease 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
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Limited ability of producing threads in the magnet and complex forms - recommended is cover - magnetic holder.
- Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these magnets can be problematic in diagnostics medical after entering the body.
- With large orders the cost of neodymium magnets is economically unviable,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- using a plate made of low-carbon steel, functioning as a magnetic yoke
- possessing a massiveness of at least 10 mm to avoid saturation
- with an ground touching surface
- under conditions of no distance (metal-to-metal)
- during pulling in a direction perpendicular to the plane
- at room temperature
Lifting capacity in practice – influencing factors
- Gap (betwixt the magnet and the metal), as 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 obtained only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped into the air.
- Metal type – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
- Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet and the plate reduces the lifting capacity.
H&S for magnets
Allergy Warning
Some people suffer from a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Frequent touching can result in a rash. We recommend use safety gloves.
Keep away from electronics
A strong magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Maintain magnets close to a device to avoid damaging the sensors.
Protective goggles
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
No play value
Absolutely store magnets away from children. Choking hazard is high, and the consequences of magnets connecting inside the body are fatal.
Machining danger
Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.
Safe operation
Exercise caution. Neodymium magnets attract from a long distance and snap with massive power, often quicker than you can react.
Safe distance
Do not bring magnets close to a wallet, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.
Serious injuries
Risk of injury: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Use thick gloves.
Operating temperature
Avoid heat. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).
Pacemakers
For implant holders: Powerful magnets affect medical devices. Maintain at least 30 cm distance or request help to handle the magnets.
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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