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UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder
goblin magnetic holder
Catalog no 350438
GTIN/EAN: 5906301814801
Diameter Ø
107 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
2350 g
Magnetization Direction
↑ axial
Load capacity
480.00 kg / 4707.19 N
Coating
[NiCuNi] Nickel
435.24 ZŁ with VAT / pcs + price for transport
353.85 ZŁ net + 23% VAT / pcs
bulk discounts:
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Physical properties - UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder
Specification / characteristics - UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder
| properties | values |
|---|---|
| Cat. no. | 350438 |
| GTIN/EAN | 5906301814801 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 107 mm [±1 mm] |
| Height | 40 mm [±1 mm] |
| Weight | 2350 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 480.00 kg / 4707.19 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 |
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% |
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 rare earth magnets.
Strengths
- Their power remains stable, and after around ten years it decreases only by ~1% (theoretically),
- Neodymium magnets remain extremely resistant to loss of magnetic properties caused by magnetic disturbances,
- Thanks to the reflective finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an professional appearance,
- Neodymium magnets achieve maximum magnetic induction on a small surface, which ensures high operational effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Possibility of accurate shaping and modifying to complex needs,
- Universal use in high-tech industry – they serve a role in HDD drives, motor assemblies, medical devices, and industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and 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
- 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 secure oxidation as well as corrosion.
- Limited possibility of producing nuts in the magnet and complex shapes - recommended is cover - magnetic holder.
- Possible danger to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these magnets can complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Maximum lifting force for a neodymium magnet – what affects it?
- on a block made of mild steel, perfectly concentrating the magnetic field
- with a thickness no less than 10 mm
- with a plane cleaned and smooth
- with zero gap (without coatings)
- for force applied at a right angle (in the magnet axis)
- in temp. approx. 20°C
Practical aspects of lifting capacity – factors
- Distance (betwixt the magnet and the metal), since even a tiny distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, rust or dirt).
- Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically several times smaller (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Metal type – different alloys attracts identically. High carbon content weaken the attraction effect.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal environment – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the holding force.
Safety rules for work with NdFeB magnets
Hand protection
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Implant safety
People with a pacemaker should keep an safe separation from magnets. The magnetic field can interfere with the operation of the implant.
Flammability
Mechanical processing of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Nickel coating and allergies
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and wear gloves.
Keep away from computers
Data protection: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Precision electronics
Be aware: neodymium magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your mobile, tablet, and GPS.
Product not for children
Neodymium magnets are not intended for children. Swallowing several magnets can lead to them attracting across intestines, which constitutes a direct threat to life and requires urgent medical intervention.
Conscious usage
Be careful. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can move away.
Shattering risk
Despite metallic appearance, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.
Heat warning
Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.
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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