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UMGB 97x40 [M8+M10] GW F300 +Lina GOBLIN / N38 - goblin magnetic holder
goblin magnetic holder
Catalog no 350439
GTIN/EAN: 5906301814818
Diameter Ø
97 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
2200 g
Magnetization Direction
↑ axial
Load capacity
380.00 kg / 3726.53 N
Coating
[NiCuNi] Nickel
485.00 ZŁ with VAT / pcs + price for transport
394.31 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical of the product - UMGB 97x40 [M8+M10] GW F300 +Lina GOBLIN / N38 - goblin magnetic holder
Specification / characteristics - UMGB 97x40 [M8+M10] GW F300 +Lina GOBLIN / N38 - goblin magnetic holder
| properties | values |
|---|---|
| Cat. no. | 350439 |
| GTIN/EAN | 5906301814818 |
| 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 |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 380.00 kg / 3726.53 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 |
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 |
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Pros and cons of neodymium magnets.
Pros
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
- Magnets very well resist against demagnetization caused by external fields,
- Thanks to the reflective finish, the surface of nickel, gold, or silver-plated gives an elegant appearance,
- The surface of neodymium magnets generates a intense magnetic field – this is one of their assets,
- Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of exact modeling and adjusting to individual needs,
- Universal use in modern technologies – they are used in computer drives, drive modules, diagnostic systems, also complex engineering applications.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Disadvantages
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and 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 magnets in rubber or plastics, which prevent oxidation as well as corrosion.
- Due to limitations in creating threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
- Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products can be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Best holding force of the magnet in ideal parameters – what it depends on?
- using a sheet made of high-permeability steel, serving as a circuit closing element
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- without the slightest insulating layer between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at temperature approx. 20 degrees Celsius
Key elements affecting lifting force
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
- Load vector – highest force is obtained only during pulling at a 90° angle. The shear force of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – too thin plate does not accept the full field, causing part of the power to be escaped into the air.
- Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Safe handling of NdFeB magnets
Product not for children
Strictly keep magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are fatal.
Sensitization to coating
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If skin irritation appears, cease handling magnets and use protective gear.
Danger to pacemakers
Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Keep away from computers
Device Safety: Strong magnets can damage payment cards and delicate electronics (heart implants, medical aids, mechanical watches).
Machining danger
Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Bodily injuries
Large magnets can break fingers instantly. Never place your hand betwixt two strong magnets.
Do not overheat magnets
Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. This process is irreversible.
Phone sensors
Navigation devices and mobile phones are highly sensitive to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Material brittleness
Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
Conscious usage
Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.
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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