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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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Parameters as well as structure of neodymium magnets can be estimated using our
magnetic mass calculator.
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💡 Check why professionals choose Dhit over cheap substitutes
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 parameters of the product - 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 |
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Advantages and disadvantages of Nd2Fe14B magnets.
Pros
- They do not lose strength, even over nearly ten years – the reduction in lifting capacity is only ~1% (based on measurements),
- Magnets effectively defend themselves against demagnetization caused by external fields,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to look better,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the ability to customize to unusual requirements,
- Huge importance in electronics industry – they are used in magnetic memories, motor assemblies, precision medical tools, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in compact constructions
Weaknesses
- At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited possibility of making nuts in the magnet and complex forms - preferred is a housing - mounting mechanism.
- Potential hazard related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products are able to 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
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what it depends on?
- with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
- with a thickness of at least 10 mm
- with an ground touching surface
- under conditions of gap-free contact (metal-to-metal)
- during detachment in a direction vertical to the mounting surface
- in stable room temperature
Practical aspects of lifting capacity – factors
- Gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to paint, corrosion or dirt).
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
- Plate thickness – insufficiently thick plate does not accept the full field, causing part of the flux to be escaped to the other side.
- Steel grade – the best choice is high-permeability steel. Hardened steels may attract less.
- Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
- Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
Safety rules for work with neodymium magnets
Threat to navigation
Remember: neodymium magnets generate a field that confuses sensitive sensors. Keep a separation from your mobile, device, and GPS.
Do not underestimate power
Be careful. Rare earth magnets attract from a distance and snap with massive power, often faster than you can move away.
Machining danger
Fire hazard: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.
Medical implants
People with a pacemaker must maintain an absolute distance from magnets. The magnetic field can disrupt the functioning of the implant.
Demagnetization risk
Standard neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.
Protect data
Equipment safety: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).
Beware of splinters
Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.
Nickel coating and allergies
A percentage of the population experience a hypersensitivity to nickel, which is the common plating for neodymium magnets. Prolonged contact might lead to a rash. We recommend use safety gloves.
Swallowing risk
Strictly keep magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are tragic.
Pinching danger
Large magnets can smash fingers instantly. Never place your hand between two attracting surfaces.
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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