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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?
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+48 888 99 98 98
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Lifting power along with structure of a neodymium magnet can be reviewed using our
power calculator.
Orders submitted before 14:00 will be dispatched today!
💡 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 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of rare earth magnets.
Benefits
- They do not lose magnetism, even during approximately ten years – the reduction in strength is only ~1% (based on measurements),
- They are resistant to demagnetization induced by external field influence,
- By using a smooth coating of silver, the element has an professional look,
- They show high magnetic induction at the operating surface, which affects their effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to the possibility of precise forming and adaptation to custom requirements, magnetic components can be modeled in a wide range of forms and dimensions, which makes them more universal,
- Fundamental importance in modern industrial fields – they serve a role in mass storage devices, brushless drives, precision medical tools, and technologically advanced constructions.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Limitations
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited possibility of creating threads in the magnet and complex shapes - recommended is a housing - magnet mounting.
- Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these magnets can disrupt the diagnostic process medical in case of swallowing.
- Due to neodymium price, their price is relatively high,
Holding force characteristics
Maximum lifting capacity of the magnet – what it depends on?
- on a plate made of structural steel, perfectly concentrating the magnetic field
- whose transverse dimension is min. 10 mm
- characterized by even structure
- with direct contact (no coatings)
- for force applied at a right angle (in the magnet axis)
- at room temperature
Magnet lifting force in use – key factors
- Gap between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Load vector – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
- Material composition – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
- Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Additionally, even a small distance between the magnet and the plate decreases the lifting capacity.
Safe handling of NdFeB magnets
ICD Warning
Patients with a heart stimulator should maintain an absolute distance from magnets. The magnetism can interfere with the operation of the implant.
Keep away from computers
Do not bring magnets close to a purse, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.
Maximum temperature
Control the heat. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Safe operation
Handle magnets consciously. Their powerful strength can surprise even professionals. Plan your moves and do not underestimate their power.
Serious injuries
Large magnets can crush fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.
Product not for children
Adult use only. Small elements pose a choking risk, leading to severe trauma. Store out of reach of children and animals.
Keep away from electronics
Note: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your phone, device, and navigation systems.
Fire warning
Mechanical processing of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Warning for allergy sufferers
A percentage of the population suffer from a contact allergy to Ni, which is the common plating for NdFeB magnets. Frequent touching may cause dermatitis. We suggest use protective gloves.
Beware of splinters
NdFeB magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets will cause them breaking into shards.
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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