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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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Strength and appearance of neodymium magnets can be verified using our
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Orders placed before 14:00 will be shipped the same business day.
💡 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 - 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 |
Material specification
| 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Strengths and weaknesses of rare earth magnets.
Strengths
- Their power is durable, and after approximately 10 years it drops only by ~1% (theoretically),
- Magnets very well resist against demagnetization caused by ambient magnetic noise,
- A magnet with a smooth silver surface has an effective appearance,
- Magnets are distinguished by very high magnetic induction on the outer layer,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Due to the option of free forming and adaptation to individualized solutions, neodymium magnets can be modeled in a broad palette of forms and dimensions, which makes them more universal,
- Universal use in high-tech industry – they are utilized in mass storage devices, brushless drives, diagnostic systems, also industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- At very strong impacts they can crack, 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 advise our specialized [AH] magnets, which work effectively even at 230°C.
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We recommend a housing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Maximum magnetic pulling force – what it depends on?
- with the use of a yoke made of special test steel, ensuring full magnetic saturation
- with a thickness no less than 10 mm
- characterized by even structure
- under conditions of no distance (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- at ambient temperature room level
Magnet lifting force in use – key factors
- Gap (betwixt the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
- Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Base massiveness – insufficiently thick plate causes magnetic saturation, causing part of the flux to be escaped to the other side.
- Steel grade – ideal substrate is pure iron steel. Stainless steels may have worse magnetic properties.
- Smoothness – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
Warnings
ICD Warning
Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
Flammability
Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Adults only
Always store magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are fatal.
GPS Danger
A powerful magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Keep magnets near a device to avoid breaking the sensors.
Data carriers
Very strong magnetic fields can erase data on credit cards, hard drives, and storage devices. Keep a distance of at least 10 cm.
Handling rules
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.
Nickel allergy
Nickel alert: The Ni-Cu-Ni coating contains nickel. If skin irritation occurs, immediately stop working with magnets and wear gloves.
Protective goggles
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them cracking into shards.
Permanent damage
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.
Bone fractures
Large magnets can smash fingers in a fraction of a second. Never put your hand between two strong magnets.
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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