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UMP 65x45 [M8]x2 GW / N38 - search holder
search holder
Catalog no 210348
GTIN/EAN: 5906301813996
Diameter Ø
65 mm [±1 mm]
Height
45 mm [±1 mm]
Weight
1170 g
Load capacity
230.00 kg / 2255.53 N
Coating
[NiCuNi] Nickel
150.00 ZŁ with VAT / pcs + price for transport
121.95 ZŁ net + 23% VAT / pcs
bulk discounts:
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Force and shape of a magnet can be estimated using our
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💡 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 of the product - UMP 65x45 [M8]x2 GW / N38 - search holder
Specification / characteristics - UMP 65x45 [M8]x2 GW / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210348 |
| GTIN/EAN | 5906301813996 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 65 mm [±1 mm] |
| Height | 45 mm [±1 mm] |
| Weight | 1170 g |
| Load capacity ~ ? | 230.00 kg / 2255.53 N |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.2-12.6 | kGs |
| remenance Br [min. - max.] ? | 1220-1260 | mT |
| coercivity bHc ? | 10.8-11.5 | kOe |
| coercivity bHc ? | 860-915 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 36-38 | BH max MGOe |
| energy density [min. - max.] ? | 287-303 | 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 |
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Advantages
- They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (according to theory),
- Neodymium magnets prove to be remarkably resistant to demagnetization caused by external field sources,
- In other words, due to the reflective layer of gold, the element gains visual value,
- The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
- Considering the ability of precise molding and adaptation to individualized solutions, NdFeB magnets can be produced in a variety of forms and dimensions, which expands the range of possible applications,
- Significant place in high-tech industry – they are used in mass storage devices, electric motors, diagnostic systems, and modern systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and 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, when using outdoors
- Due to limitations in producing nuts and complicated shapes in magnets, we recommend using a housing - magnetic mechanism.
- Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these devices can be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Magnetic strength at its maximum – what it depends on?
- with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
- with a cross-section no less than 10 mm
- with an ground touching surface
- under conditions of ideal adhesion (metal-to-metal)
- during detachment in a direction vertical to the mounting surface
- in temp. approx. 20°C
Lifting capacity in real conditions – factors
- Clearance – the presence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
- Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Plate material – mild steel attracts best. Alloy admixtures lower magnetic properties and holding force.
- Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
- Operating temperature – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.
Safety rules for work with neodymium magnets
Allergy Warning
Certain individuals have a contact allergy to Ni, which is the standard coating for NdFeB magnets. Extended handling may cause skin redness. We strongly advise wear protective gloves.
Threat to electronics
Powerful magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Maintain a gap of at least 10 cm.
Fire risk
Powder produced during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.
No play value
Product intended for adults. Small elements can be swallowed, leading to serious injuries. Store out of reach of children and animals.
Physical harm
Big blocks can crush fingers in a fraction of a second. Under no circumstances put your hand between two strong magnets.
Medical interference
For implant holders: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to handle the magnets.
Handling guide
Exercise caution. Rare earth magnets act from a distance and connect with massive power, often quicker than you can move away.
Shattering risk
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Collision of two magnets leads to them shattering into shards.
Heat warning
Control the heat. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
Threat to navigation
GPS units and smartphones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.
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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