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UMGB 135x40 [M10+M12] GW F600 +Lina GOBLIN / N38 - goblin magnetic holder
goblin magnetic holder
Catalog no 350437
GTIN/EAN: 5906301814795
Diameter Ø
135 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
4300 g
Magnetization Direction
↑ axial
Load capacity
680.00 kg / 6668.52 N
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 1 000 Gauss [±5%]
735.24 ZŁ with VAT / pcs + price for transport
597.76 ZŁ net + 23% VAT / pcs
bulk discounts:
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Force as well as shape of a magnet can be estimated using our
magnetic calculator.
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Physical properties - UMGB 135x40 [M10+M12] GW F600 +Lina GOBLIN / N38 - goblin magnetic holder
Specification / characteristics - UMGB 135x40 [M10+M12] GW F600 +Lina GOBLIN / N38 - goblin magnetic holder
| properties | values |
|---|---|
| Cat. no. | 350437 |
| GTIN/EAN | 5906301814795 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 135 mm [±1 mm] |
| Height | 40 mm [±1 mm] |
| Weight | 4300 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 680.00 kg / 6668.52 N |
| Coating | [NiCuNi] Nickel |
| Holder Type | 2 sided |
| Material Type | Structural steel S235 (ferrous) |
| Magnetic Flux | ~ 1 000 Gauss [±5%] |
| Rope Length | 25 m |
| Rope Capacity | ~ 1595 kg |
| Rope Diameter | Ø 8 mm |
| Gloves | 1 pair |
| Size/Mount Quantity | 2xM10/1xM12 |
| 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% |
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 rare earth magnets.
Strengths
- They do not lose power, even after approximately ten years – the decrease in strength is only ~1% (based on measurements),
- They retain their magnetic properties even under close interference source,
- Thanks to the glossy finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an aesthetic appearance,
- They feature high magnetic induction at the operating surface, which affects their effectiveness,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of detailed forming and modifying to concrete needs,
- Wide application in advanced technology sectors – they serve a role in hard drives, electric motors, advanced medical instruments, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which makes them useful in small systems
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Due to limitations in creating nuts and complex forms in magnets, we recommend using cover - magnetic mount.
- Possible danger related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these devices are able to be problematic in diagnostics medical after entering the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- with the application of a sheet made of special test steel, guaranteeing maximum field concentration
- possessing a thickness of min. 10 mm to ensure full flux closure
- with an polished contact surface
- without any insulating layer between the magnet and steel
- for force applied at a right angle (pull-off, not shear)
- in neutral thermal conditions
Practical aspects of lifting capacity – factors
- Gap (betwixt the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to paint, corrosion or debris).
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of nominal force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Chemical composition of the base – mild steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Plate texture – ground elements ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
- Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
H&S for magnets
Do not overheat magnets
Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.
Respect the power
Use magnets consciously. Their huge power can shock even professionals. Stay alert and do not underestimate their force.
Danger to pacemakers
Life threat: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Pinching danger
Mind your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!
Phone sensors
Navigation devices and mobile phones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.
Avoid contact if allergic
A percentage of the population have a sensitization to Ni, which is the standard coating for neodymium magnets. Prolonged contact might lead to skin redness. It is best to wear safety gloves.
Flammability
Machining of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Shattering risk
NdFeB magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets leads to them cracking into shards.
Swallowing risk
Neodymium magnets are not toys. Swallowing a few magnets can lead to them attracting across intestines, which poses a severe health hazard and necessitates immediate surgery.
Keep away from computers
Intense magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.
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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