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UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder
search holder
Catalog no 210446
GTIN/EAN: 5906301814108
Diameter Ø
94 mm [±1 mm]
Height
28 mm [±1 mm]
Weight
1600 g
Load capacity
330.00 kg / 3236.19 N
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 8 000 Gauss [±5%]
300.00 ZŁ with VAT / pcs + price for transport
243.90 ZŁ net + 23% VAT / pcs
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💡 Check why professionals choose Dhit over cheap substitutes
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 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder
Specification / characteristics - UMP 94x28 [3xM10] GW F300 GOLD Lina / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210446 |
| GTIN/EAN | 5906301814108 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 94 mm [±1 mm] |
| Height | 28 mm [±1 mm] |
| Weight | 1600 g |
| Load capacity ~ ? | 330.00 kg / 3236.19 N |
| Coating | [NiCuNi] Nickel |
| Series | GOLD |
| Holder Type | 2 sided |
| Material Type | Structural steel S235 (ferrous) |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Rope Length | 25 m |
| Rope Capacity | ~ 1595 kg |
| Rope Diameter | Ø 8 mm |
| Gloves | 1 pair |
| Size/Mount Quantity | 3xM10 |
| 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
View also offers
Pros and cons of rare earth magnets.
Pros
- They retain attractive force for nearly ten years – the loss is just ~1% (based on simulations),
- They are noted for resistance to demagnetization induced by external magnetic fields,
- In other words, due to the smooth surface of nickel, the element looks attractive,
- Neodymium magnets ensure maximum magnetic induction on a contact point, which increases force concentration,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
- In view of the potential of flexible molding and customization to individualized needs, NdFeB magnets can be created in a variety of forms and dimensions, which expands the range of possible applications,
- Significant place in high-tech industry – they find application in hard drives, brushless drives, advanced medical instruments, also complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in miniature devices
Cons
- At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing nuts and complicated forms in magnets, we propose using casing - magnetic mount.
- Health risk related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child safety. It is also worth noting that tiny parts of these products can disrupt the diagnostic process medical in case of swallowing.
- With mass production the cost of neodymium magnets is economically unviable,
Pull force analysis
Maximum lifting force for a neodymium magnet – what it depends on?
- with the application of a sheet made of special test steel, ensuring full magnetic saturation
- possessing a massiveness of min. 10 mm to avoid saturation
- with a surface free of scratches
- with direct contact (without impurities)
- during detachment in a direction perpendicular to the plane
- at room temperature
Impact of factors on magnetic holding capacity in practice
- Distance (betwixt the magnet and the metal), because even a tiny clearance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to paint, rust or dirt).
- Load vector – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Metal type – not every steel reacts the same. Alloy additives worsen the interaction with the magnet.
- Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate reduces the load capacity.
H&S for magnets
Danger to pacemakers
Health Alert: Strong magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.
Finger safety
Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Nickel coating and allergies
Some people suffer from a contact allergy to nickel, which is the common plating for neodymium magnets. Extended handling can result in dermatitis. We suggest use protective gloves.
Magnetic media
Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).
Adults only
Only for adults. Small elements pose a choking risk, causing severe trauma. Store out of reach of kids and pets.
Magnetic interference
An intense magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Maintain magnets close to a smartphone to avoid breaking the sensors.
Magnet fragility
Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.
Heat warning
Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Respect the power
Before use, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Dust is flammable
Powder produced during grinding of magnets is flammable. Avoid drilling into magnets unless you are an expert.
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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