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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
- Coating
- [NiCuNi] Nickel
How we measure these parameters — certificates and measurements
353.85 zł net / pcs
435.24 zł with VAT (23% VAT) / pcs
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Need more?Frequently asked questions
How much will a magnetic holder hold in practice?
Will a holder work on stainless steel?
Which coating for which conditions?
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Product card - 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 |
|---|---|---|
| Remanence Br ? | 12.2-12.6 | kGs |
| Remanence Br ? | 1220-1260 | mT |
| Coercivity bHc ? | 10.8-11.5 | kOe |
| Coercivity bHc ? | 860-915 | kA/m |
| Intrinsic coercivity iHc | ≥ 12 | kOe |
| Intrinsic coercivity iHc | ≥ 955 | kA/m |
| Energy product BHmax ? | 36-38 | BH max MGOe |
| Energy product BHmax ? | 287-303 | BH max KJ/m |
| Maximum working 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 | 310 | °C |
| Curie Temperature TF | 590 | °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 |
See also proposals
Advantages as well as disadvantages of Nd2Fe14B magnets.
Strengths
- Their power is durable, and after around ten years it decreases only by ~1% (according to research),
- Magnets effectively protect themselves against demagnetization caused by external fields,
- By covering with a reflective layer of silver, the element acquires an professional look,
- The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
- Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to modularity in shaping and the capacity to adapt to complex applications,
- Universal use in advanced technology sectors – they serve a role in hard drives, brushless drives, precision medical tools, also other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in small systems
Limitations
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in force. 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
- They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We recommend casing - magnetic mount, due to difficulties in creating threads inside the magnet and complicated shapes.
- Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
- With budget limitations the cost of neodymium magnets can be a barrier,
Lifting parameters
Best holding force of the magnet in ideal parameters – what affects it?
- with the contact of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- whose thickness is min. 10 mm
- characterized by smoothness
- under conditions of no distance (metal-to-metal)
- during pulling in a direction perpendicular to the mounting surface
- in neutral thermal conditions
Magnet lifting force in use – key factors
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Load vector – highest force is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually several times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Material type – the best choice is pure iron steel. Hardened steels may have worse magnetic properties.
- Smoothness – ideal contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.
Safe handling of NdFeB magnets
Electronic devices
Device Safety: Strong magnets can ruin data carriers and sensitive devices (pacemakers, medical aids, timepieces).
Magnet fragility
Watch out for shards. Magnets can fracture upon violent connection, launching shards into the air. Wear goggles.
Danger to the youngest
Only for adults. Small elements can be swallowed, leading to severe trauma. Store out of reach of kids and pets.
Implant safety
Patients with a ICD should maintain an safe separation from magnets. The magnetic field can disrupt the functioning of the implant.
Phone sensors
A powerful magnetic field interferes with the functioning of compasses in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.
Machining danger
Machining of neodymium magnets poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Operating temperature
Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.
Do not underestimate power
Use magnets consciously. Their powerful strength can shock even experienced users. Be vigilant and do not underestimate their force.
Hand protection
Protect your hands. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Metal Allergy
It is widely known that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent touching magnets with bare hands or select coated magnets.
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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