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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
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Detailed specification - 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 |
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also products
![SM 19x225 [2xM6] / N50 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-19x225-2xm6-jis.jpg "SM 19x225 [2xM6] / N50 - magnetic separator")
Strengths and weaknesses of Nd2Fe14B magnets.
Advantages
- They have unchanged lifting capacity, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- They are extremely resistant to demagnetization induced by external disturbances,
- By applying a reflective coating of gold, the element presents an proper look,
- Neodymium magnets deliver maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Possibility of detailed machining as well as modifying to complex requirements,
- Fundamental importance in future technologies – they find application in data components, drive modules, medical equipment, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in miniature devices
Disadvantages
- To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose their strength 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 suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- Due to limitations in creating nuts and complicated shapes in magnets, we recommend using casing - magnetic mount.
- Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Furthermore, tiny parts of these products can be problematic in diagnostics medical when they are in the body.
- Due to complex production process, their price is higher than average,
Lifting parameters
Maximum magnetic pulling force – what affects it?
- with the use of a sheet made of special test steel, ensuring full magnetic saturation
- whose transverse dimension is min. 10 mm
- characterized by lack of roughness
- without any clearance between the magnet and steel
- under perpendicular application of breakaway force (90-degree angle)
- in neutral thermal conditions
Impact of factors on magnetic holding capacity in practice
- Air gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to paint, corrosion or dirt).
- Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material type – the best choice is high-permeability steel. Cast iron may generate lower lifting capacity.
- Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
- Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet’s surface and the plate decreases the holding force.
Precautions when working with neodymium magnets
Do not give to children
Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Keep away from kids and pets.
Cards and drives
Very strong magnetic fields can destroy records on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.
Medical interference
People with a pacemaker must keep an large gap from magnets. The magnetic field can stop the operation of the life-saving device.
Keep away from electronics
Remember: rare earth magnets generate a field that disrupts sensitive sensors. Keep a safe distance from your phone, tablet, and navigation systems.
Avoid contact if allergic
Studies show that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent direct skin contact and opt for versions in plastic housing.
Dust explosion hazard
Powder produced during machining of magnets is flammable. Do not drill into magnets unless you are an expert.
Powerful field
Be careful. Neodymium magnets act from a distance and connect with huge force, often faster than you can move away.
Thermal limits
Control the heat. Heating the magnet above 80 degrees Celsius will ruin its properties and strength.
Shattering risk
Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.
Crushing force
Protect your hands. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
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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