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UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder
search holder
Catalog no 210337
GTIN/EAN: 5906301813965
Diameter Ø
97 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
2200 g
Load capacity
380.00 kg / 3726.53 N
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 10 000 Gauss [±5%]
300.00 ZŁ with VAT / pcs + price for transport
243.90 ZŁ net + 23% VAT / pcs
bulk discounts:
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Specifications as well as structure of neodymium magnets can be reviewed with our
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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 parameters - UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder
Specification / characteristics - UMP 97x40 [M8+M10] GW F300 kg / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210337 |
| GTIN/EAN | 5906301813965 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 97 mm [±1 mm] |
| Height | 40 mm [±1 mm] |
| Weight | 2200 g |
| Load capacity ~ ? | 380.00 kg / 3726.53 N |
| Coating | [NiCuNi] Nickel |
| Holder Type | 2 sided |
| Material Type | Structural steel S235 (ferrous) |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8/1xM10 |
| 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Advantages as well as disadvantages of rare earth magnets.
Benefits
- They retain full power for nearly ten years – the drop is just ~1% (in theory),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- By using a lustrous layer of nickel, the element acquires an modern look,
- Magnets are characterized by extremely high magnetic induction on the outer side,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Considering the ability of accurate molding and adaptation to individualized requirements, NdFeB magnets can be modeled in a variety of forms and dimensions, which makes them more universal,
- Universal use in advanced technology sectors – they find application in computer drives, electromotive mechanisms, diagnostic systems, as well as other advanced devices.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Disadvantages
- At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets decrease their force 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 durability even at temperatures up to 230°C
- When exposed to humidity, magnets usually rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in realizing nuts and complicated forms in magnets, we propose using cover - magnetic mechanism.
- Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Additionally, small elements of these devices can disrupt the diagnostic process medical in case of swallowing.
- With mass production the cost of neodymium magnets is economically unviable,
Lifting parameters
Maximum magnetic pulling force – what it depends on?
- with the use of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
- possessing a thickness of at least 10 mm to avoid saturation
- characterized by smoothness
- under conditions of no distance (metal-to-metal)
- for force acting at a right angle (in the magnet axis)
- at conditions approx. 20°C
Practical lifting capacity: influencing factors
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Metal type – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
- Surface finish – ideal contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
Safe handling of NdFeB magnets
Fire warning
Dust created during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.
Medical implants
People with a ICD must keep an safe separation from magnets. The magnetic field can stop the functioning of the life-saving device.
Impact on smartphones
Be aware: rare earth magnets generate a field that confuses precision electronics. Keep a safe distance from your phone, device, and GPS.
Handling rules
Handle magnets with awareness. Their huge power can shock even experienced users. Be vigilant and respect their force.
Magnetic media
Avoid bringing magnets close to a purse, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.
Skin irritation risks
Nickel alert: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and use protective gear.
Hand protection
Protect your hands. Two powerful magnets will snap together instantly with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!
Eye protection
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Clashing of two magnets will cause them shattering into shards.
Maximum temperature
Do not overheat. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
Product not for children
Strictly store magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are fatal.
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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