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UMGB 75x28 [M10x3] GW F200 GOLD +Lina GOBLIN / N42 - goblin magnetic holder
goblin magnetic holder
Catalog no 350440
GTIN/EAN: 5906301814825
Diameter Ø
75 mm [±1 mm]
Height
28 mm [±1 mm]
Weight
900 g
Magnetization Direction
↑ axial
Load capacity
310.00 kg / 3040.06 N
Coating
[NiCuNi] Nickel
255.00 ZŁ with VAT / pcs + price for transport
207.32 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - UMGB 75x28 [M10x3] GW F200 GOLD +Lina GOBLIN / N42 - goblin magnetic holder
Specification / characteristics - UMGB 75x28 [M10x3] GW F200 GOLD +Lina GOBLIN / N42 - goblin magnetic holder
| properties | values |
|---|---|
| Cat. no. | 350440 |
| GTIN/EAN | 5906301814825 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 75 mm [±1 mm] |
| Height | 28 mm [±1 mm] |
| Weight | 900 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 310.00 kg / 3040.06 N |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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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Strengths as well as weaknesses of neodymium magnets.
Pros
- Their strength is durable, and after approximately 10 years it drops only by ~1% (according to research),
- Neodymium magnets prove to be exceptionally resistant to demagnetization caused by external interference,
- The use of an refined finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- Magnetic induction on the working layer of the magnet is extremely intense,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Possibility of exact forming and adapting to defined conditions,
- Fundamental importance in future technologies – they are utilized in hard drives, electric drive systems, medical equipment, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in miniature devices
Limitations
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We recommend cover - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Furthermore, small components of these devices are able to disrupt the diagnostic process medical after entering the body.
- Due to complex production process, their price is higher than average,
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
- with a thickness minimum 10 mm
- characterized by even structure
- without any insulating layer between the magnet and steel
- under vertical force vector (90-degree angle)
- at room temperature
Magnet lifting force in use – key factors
- Clearance – existence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Steel thickness – too thin steel causes magnetic saturation, causing part of the flux to be lost into the air.
- Steel type – mild steel attracts best. Alloy steels decrease magnetic properties and lifting capacity.
- Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
- Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity was assessed with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate decreases the holding force.
Precautions when working with neodymium magnets
Danger to pacemakers
Warning for patients: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.
Do not drill into magnets
Dust created during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.
Heat warning
Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. This process is irreversible.
Swallowing risk
Always keep magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are fatal.
Safe distance
Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.
Bone fractures
Protect your hands. Two powerful magnets will join immediately with a force of massive weight, destroying anything in their path. Be careful!
Powerful field
Handle magnets consciously. Their immense force can shock even professionals. Plan your moves and respect their force.
Compass and GPS
Remember: rare earth magnets produce a field that confuses sensitive sensors. Keep a safe distance from your phone, device, and navigation systems.
Skin irritation risks
Studies show that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and select encased magnets.
Beware of splinters
NdFeB magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets leads to them shattering into small pieces.
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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