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UMGB 67x28 [M8+M10] GW F 120+ Lina GOBLIN / N38 - goblin magnetic holder
goblin magnetic holder
Catalog no 350435
GTIN/EAN: 5906301814771
Diameter Ø
67 mm [±1 mm]
Height
28 mm [±1 mm]
Weight
700 g
Magnetization Direction
↑ axial
Load capacity
180.00 kg / 1765.20 N
Coating
[NiCuNi] Nickel
165.24 ZŁ with VAT / pcs + price for transport
134.34 ZŁ net + 23% VAT / pcs
bulk discounts:
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Strength along with form of a neodymium magnet can be reviewed on our
magnetic mass calculator.
Orders placed before 14:00 will be shipped the same business day.
Physical properties - UMGB 67x28 [M8+M10] GW F 120+ Lina GOBLIN / N38 - goblin magnetic holder
Specification / characteristics - UMGB 67x28 [M8+M10] GW F 120+ Lina GOBLIN / N38 - goblin magnetic holder
| properties | values |
|---|---|
| Cat. no. | 350435 |
| GTIN/EAN | 5906301814771 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 67 mm [±1 mm] |
| Height | 28 mm [±1 mm] |
| Weight | 700 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 180.00 kg / 1765.20 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths and weaknesses of Nd2Fe14B magnets.
Benefits
- They have stable power, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- Magnets very well defend themselves against loss of magnetization caused by ambient magnetic noise,
- In other words, due to the aesthetic surface of nickel, the element gains a professional look,
- Magnets possess very high magnetic induction on the working surface,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Thanks to the possibility of flexible shaping and adaptation to unique requirements, magnetic components can be manufactured in a wide range of geometric configurations, which makes them more universal,
- Wide application in innovative solutions – they find application in mass storage devices, electric motors, medical equipment, as well as multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- Limited ability of making nuts in the magnet and complex shapes - recommended is cover - mounting mechanism.
- Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these magnets can disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- with the use of a sheet made of low-carbon steel, guaranteeing maximum field concentration
- whose transverse dimension reaches at least 10 mm
- with a plane cleaned and smooth
- under conditions of ideal adhesion (surface-to-surface)
- during detachment in a direction vertical to the plane
- in stable room temperature
Determinants of lifting force in real conditions
- Gap (between the magnet and the metal), because even a tiny clearance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Plate thickness – insufficiently thick steel causes magnetic saturation, causing part of the power to be escaped into the air.
- Steel type – mild steel attracts best. Alloy steels lower magnetic properties and holding force.
- Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Thermal conditions – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity was assessed by applying a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under parallel forces the holding force is lower. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.
Safe handling of neodymium magnets
Bodily injuries
Large magnets can smash fingers instantly. Do not put your hand between two strong magnets.
Electronic hazard
Device Safety: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).
Medical interference
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Powerful field
Exercise caution. Rare earth magnets attract from a distance and snap with huge force, often quicker than you can move away.
Fire risk
Machining of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Threat to navigation
Be aware: rare earth magnets generate a field that disrupts precision electronics. Maintain a safe distance from your phone, tablet, and GPS.
Danger to the youngest
NdFeB magnets are not toys. Accidental ingestion of several magnets can lead to them pinching intestinal walls, which constitutes a critical condition and necessitates urgent medical intervention.
Fragile material
NdFeB magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets will cause them cracking into shards.
Avoid contact if allergic
Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. For allergy sufferers, prevent touching magnets with bare hands or opt for coated magnets.
Power loss in heat
Avoid heat. Neodymium magnets are susceptible to heat. If you require operation above 80°C, look for HT versions (H, SH, UH).
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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