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UMGB 97x40 [M8+M10] GW F300 +Lina GOBLIN / N38 - goblin magnetic holder
goblin magnetic holder
Catalog no 350439
GTIN/EAN: 5906301814818
Diameter Ø
97 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
2200 g
Magnetization Direction
↑ axial
Load capacity
380.00 kg / 3726.53 N
Coating
[NiCuNi] Nickel
485.00 ZŁ with VAT / pcs + price for transport
394.31 ZŁ net + 23% VAT / pcs
bulk discounts:
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Weight as well as structure of magnetic components can be tested with our
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Technical specification of the product - UMGB 97x40 [M8+M10] GW F300 +Lina GOBLIN / N38 - goblin magnetic holder
Specification / characteristics - UMGB 97x40 [M8+M10] GW F300 +Lina GOBLIN / N38 - goblin magnetic holder
| properties | values |
|---|---|
| Cat. no. | 350439 |
| GTIN/EAN | 5906301814818 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 97 mm [±1 mm] |
| Height | 40 mm [±1 mm] |
| Weight | 2200 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 380.00 kg / 3726.53 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% |
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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Advantages as well as disadvantages of rare earth magnets.
Advantages
- They retain attractive force for almost 10 years – the loss is just ~1% (according to analyses),
- They have excellent resistance to magnetic field loss when exposed to opposing magnetic fields,
- A magnet with a metallic nickel surface has an effective appearance,
- Magnetic induction on the top side of the magnet turns out to be strong,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- In view of the ability of accurate shaping and customization to individualized requirements, neodymium magnets can be created in a wide range of shapes and sizes, which increases their versatility,
- Universal use in innovative solutions – they are used in computer drives, electric drive systems, precision medical tools, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in small systems
Limitations
- They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases 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.
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We recommend cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that small elements of these magnets can complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Magnetic strength at its maximum – what it depends on?
- with the application of a yoke made of low-carbon steel, ensuring maximum field concentration
- possessing a thickness of minimum 10 mm to ensure full flux closure
- characterized by smoothness
- with direct contact (no paint)
- during detachment in a direction vertical to the plane
- at room temperature
Practical lifting capacity: influencing factors
- Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Steel thickness – too thin plate does not close the flux, causing part of the flux to be lost to the other side.
- Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
- Base smoothness – the more even the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently damage the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Safe handling of NdFeB magnets
Combustion hazard
Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.
Beware of splinters
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
Keep away from computers
Equipment safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, hearing aids, timepieces).
Swallowing risk
Neodymium magnets are not intended for children. Accidental ingestion of a few magnets can lead to them connecting inside the digestive tract, which constitutes a severe health hazard and requires urgent medical intervention.
Permanent damage
Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.
Health Danger
Individuals with a pacemaker have to keep an large gap from magnets. The magnetism can interfere with the functioning of the life-saving device.
Nickel allergy
Medical facts indicate that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, avoid touching magnets with bare hands or opt for versions in plastic housing.
Magnetic interference
Be aware: rare earth magnets produce a field that disrupts precision electronics. Keep a safe distance from your phone, device, and navigation systems.
Pinching danger
Large magnets can crush fingers in a fraction of a second. Do not place your hand betwixt two strong magnets.
Immense force
Use magnets with awareness. Their huge power can surprise even professionals. Be vigilant and respect their power.
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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