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UMP 67x28 [M8+M10] GW F120 kg / N38 - search holder
search holder
Catalog no 210335
GTIN/EAN: 5906301813941
Diameter Ø
67 mm [±1 mm]
Height
28 mm [±1 mm]
Weight
700 g
Load capacity
180.00 kg / 1765.20 N
Coating
[NiCuNi] Nickel
110.00 ZŁ with VAT / pcs + price for transport
89.43 ZŁ net + 23% VAT / pcs
bulk discounts:
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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 data - UMP 67x28 [M8+M10] GW F120 kg / N38 - search holder
Specification / characteristics - UMP 67x28 [M8+M10] GW F120 kg / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210335 |
| GTIN/EAN | 5906301813941 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 67 mm [±1 mm] |
| Height | 28 mm [±1 mm] |
| Weight | 700 g |
| Load capacity ~ ? | 180.00 kg / 1765.20 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other products
Strengths and weaknesses of neodymium magnets.
Advantages
- They virtually do not lose power, because even after ten years the performance loss is only ~1% (according to literature),
- They are noted for resistance to demagnetization induced by external disturbances,
- In other words, due to the shiny finish of silver, the element is aesthetically pleasing,
- Magnetic induction on the surface of the magnet turns out to be impressive,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures reaching 230°C and above...
- In view of the possibility of free forming and adaptation to custom requirements, neodymium magnets can be created in a variety of forms and dimensions, which amplifies use scope,
- Fundamental importance in future technologies – they are commonly used in HDD drives, drive modules, advanced medical instruments, also industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Limitations
- At very strong impacts they can break, therefore we recommend placing them in special holders. 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 suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in realizing nuts and complicated forms in magnets, we recommend using cover - magnetic mechanism.
- Potential hazard resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical in case of swallowing.
- Due to complex production process, their price exceeds standard values,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- with the use of a yoke made of low-carbon steel, ensuring maximum field concentration
- with a thickness minimum 10 mm
- characterized by lack of roughness
- with direct contact (no impurities)
- during pulling in a direction perpendicular to the mounting surface
- in stable room temperature
Lifting capacity in practice – influencing factors
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
- Metal type – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
- Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
- Temperature influence – high temperature weakens pulling force. Too high temperature can permanently damage the magnet.
Lifting capacity testing was carried out on a smooth plate of optimal thickness, under perpendicular forces, however under shearing force the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate reduces the holding force.
Precautions when working with neodymium magnets
Shattering risk
Despite metallic appearance, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Keep away from children
Strictly store magnets away from children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are very dangerous.
Do not drill into magnets
Machining of NdFeB material carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Pinching danger
Watch your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!
Phone sensors
GPS units and smartphones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Operating temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.
Cards and drives
Powerful magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.
ICD Warning
Warning for patients: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.
Warning for allergy sufferers
Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.
Handling rules
Handle with care. Neodymium magnets attract from a distance and connect with huge force, often faster 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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