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UMP 65x45 [M8]x2 GW F230+ Lina / N38 - search holder
search holder
Catalog no 210386
GTIN/EAN: 5906301814054
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
Magnetic Flux
~ 6 000 Gauss [±5%]
180.00 ZŁ with VAT / pcs + price for transport
146.34 ZŁ net + 23% VAT / pcs
bulk discounts:
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💡 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 65x45 [M8]x2 GW F230+ Lina / N38 - search holder
Specification / characteristics - UMP 65x45 [M8]x2 GW F230+ Lina / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210386 |
| GTIN/EAN | 5906301814054 |
| 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 |
| Holder Type | 2 sided |
| Material Type | Structural steel S235 (ferrous) |
| Magnetic Flux | ~ 6 000 Gauss [±5%] |
| Rope Length | 25 m |
| Rope Capacity | ~ 1595 kg |
| Rope Diameter | Ø 8 mm |
| Gloves | 1 pair |
| Size/Mount Quantity | 1xM8/2xM10 |
| 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 |
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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Strengths as well as weaknesses of Nd2Fe14B magnets.
Strengths
- They retain magnetic properties for around 10 years – the loss is just ~1% (based on simulations),
- They feature excellent resistance to weakening of magnetic properties as a result of external fields,
- In other words, due to the reflective layer of gold, the element is aesthetically pleasing,
- Magnetic induction on the working layer of the magnet remains very high,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to freedom in designing and the capacity to customize to specific needs,
- Key role in modern industrial fields – they are utilized in mass storage devices, motor assemblies, diagnostic systems, and multitasking production systems.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Limitations
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their strength 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 stability even at temperatures up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
- We recommend casing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated forms.
- Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, small elements of these magnets can disrupt the diagnostic process medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Best holding force of the magnet in ideal parameters – what contributes to it?
- using a plate made of low-carbon steel, functioning as a magnetic yoke
- whose transverse dimension equals approx. 10 mm
- with an ideally smooth contact surface
- under conditions of no distance (surface-to-surface)
- during pulling in a direction vertical to the plane
- in stable room temperature
Practical aspects of lifting capacity – factors
- Clearance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is obtained only during pulling at a 90° angle. The shear force of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.
Warnings
Nickel allergy
Some people suffer from a contact allergy to Ni, which is the common plating for NdFeB magnets. Frequent touching can result in dermatitis. It is best to wear protective gloves.
Machining danger
Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Threat to navigation
Note: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a separation from your mobile, device, and GPS.
Maximum temperature
Avoid heat. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
Conscious usage
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
Keep away from computers
Very strong magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.
Danger to the youngest
Strictly keep magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are life-threatening.
Pinching danger
Risk of injury: The pulling power is so great that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Implant safety
For implant holders: Powerful magnets affect medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.
Magnets are brittle
NdFeB magnets are sintered ceramics, meaning they are very brittle. Impact 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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