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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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Strength along with structure of a neodymium magnet can be estimated using our
magnetic mass calculator.
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Technical of the product - 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 |
Elemental analysis
| 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 |
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Pros and cons of Nd2Fe14B magnets.
Strengths
- They do not lose magnetism, even over approximately 10 years – the drop in lifting capacity is only ~1% (theoretically),
- They are noted for resistance to demagnetization induced by external disturbances,
- By applying a decorative coating of gold, the element gains an nice look,
- Neodymium magnets generate maximum magnetic induction on a small area, which increases force concentration,
- 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 exact creating and adapting to defined needs,
- Significant place in innovative solutions – they are utilized in mass storage devices, electric motors, precision medical tools, as well as complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as 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 as well as corrosion.
- We suggest a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complex forms.
- Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small components of these magnets are able to complicate diagnosis medical when they are in the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Pull force analysis
Best holding force of the magnet in ideal parameters – what contributes to it?
- on a block made of mild steel, perfectly concentrating the magnetic flux
- with a thickness no less than 10 mm
- with an ground touching surface
- under conditions of ideal adhesion (surface-to-surface)
- during pulling in a direction perpendicular to the plane
- in temp. approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Distance – existence of foreign body (paint, tape, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Chemical composition of the base – mild steel gives the best results. Alloy admixtures decrease magnetic properties and lifting capacity.
- Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
- Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet and the plate reduces the load capacity.
Safety rules for work with NdFeB magnets
Electronic hazard
Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).
Bodily injuries
Big blocks can crush fingers instantly. Never put your hand betwixt two strong magnets.
Warning for allergy sufferers
Certain individuals experience a sensitization to nickel, which is the typical protective layer for neodymium magnets. Prolonged contact may cause a rash. We strongly advise use protective gloves.
Risk of cracking
Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Combustion hazard
Machining of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
ICD Warning
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Threat to navigation
Be aware: neodymium magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.
Swallowing risk
Adult use only. Small elements pose a choking risk, leading to serious injuries. Store away from children and animals.
Caution required
Handle magnets consciously. Their immense force can surprise even experienced users. Plan your moves and do not underestimate their force.
Do not overheat magnets
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. The loss of strength is permanent.
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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