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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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Weight along with structure of neodymium magnets can be checked with our
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Detailed specification - 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 |
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% |
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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Pros as well as cons of neodymium magnets.
Advantages
- They do not lose magnetism, even after nearly 10 years – the reduction in strength is only ~1% (theoretically),
- Magnets effectively protect themselves against demagnetization caused by external fields,
- In other words, due to the smooth layer of nickel, the element gains a professional look,
- Magnetic induction on the top side of the magnet turns out to be strong,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
- Considering the option of free shaping and customization to unique needs, neodymium magnets can be manufactured in a variety of shapes and sizes, which amplifies use scope,
- Huge importance in advanced technology sectors – they find application in mass storage devices, electric drive systems, diagnostic systems, and industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in compact constructions
Limitations
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Due to limitations in realizing nuts and complicated shapes in magnets, we propose using a housing - magnetic mount.
- Potential hazard to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices are able to complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Holding force characteristics
Maximum holding power of the magnet – what affects it?
- using a sheet made of mild steel, functioning as a magnetic yoke
- with a thickness no less than 10 mm
- characterized by even structure
- under conditions of no distance (metal-to-metal)
- under perpendicular force vector (90-degree angle)
- in temp. approx. 20°C
Lifting capacity in practice – influencing factors
- Clearance – existence of foreign body (rust, tape, gap) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – mild steel attracts best. Alloy steels reduce magnetic properties and holding force.
- Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
- Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.
H&S for magnets
Threat to navigation
Note: rare earth magnets generate a field that confuses precision electronics. Keep a separation from your phone, device, and navigation systems.
Protective goggles
Despite the nickel coating, neodymium is delicate and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.
Swallowing risk
Only for adults. Small elements pose a choking risk, causing severe trauma. Store out of reach of kids and pets.
Maximum temperature
Watch the temperature. Exposing the magnet to high heat will destroy its properties and strength.
Bone fractures
Pinching hazard: The pulling power is so great that it can result in blood blisters, pinching, and even bone fractures. Use thick gloves.
Respect the power
Before use, check safety instructions. Sudden snapping can break the magnet or injure your hand. Be predictive.
Threat to electronics
Device Safety: Strong magnets can damage data carriers and delicate electronics (heart implants, medical aids, mechanical watches).
ICD Warning
Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.
Avoid contact if allergic
Studies show that nickel (standard magnet coating) is a common allergen. If you have an allergy, avoid touching magnets with bare hands or select coated magnets.
Mechanical processing
Dust generated during machining of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
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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