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UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread
magnetic holder internal thread
Catalog no 180318
GTIN/EAN: 5906301813743
Diameter Ø
32 mm [±1 mm]
Height
18 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
42 g
Load capacity
34.00 kg / 333.43 N
15.22 ZŁ with VAT / pcs + price for transport
12.37 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical parameters - UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread
Specification / characteristics - UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread
| properties | values |
|---|---|
| Cat. no. | 180318 |
| GTIN/EAN | 5906301813743 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 42 g |
| Load capacity ~ ? | 34.00 kg / 333.43 N |
| 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% |
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 and disadvantages of rare earth magnets.
Advantages
- They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
- Neodymium magnets are extremely resistant to magnetic field loss caused by external magnetic fields,
- The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Due to the possibility of accurate shaping and customization to individualized projects, neodymium magnets can be modeled in a wide range of shapes and sizes, which expands the range of possible applications,
- Universal use in electronics industry – they are commonly used in magnetic memories, brushless drives, medical devices, also other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices
Disadvantages
- At strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
- Due to limitations in creating nuts and complex shapes in magnets, we recommend using cover - magnetic mount.
- Possible danger to health – tiny shards of magnets are risky, if swallowed, which becomes key in the context of child health protection. Additionally, tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Highest magnetic holding force – what contributes to it?
- using a plate made of high-permeability steel, acting as a ideal flux conductor
- possessing a massiveness of minimum 10 mm to avoid saturation
- characterized by smoothness
- under conditions of ideal adhesion (surface-to-surface)
- under vertical force vector (90-degree angle)
- in neutral thermal conditions
What influences lifting capacity in practice
- Clearance – existence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Metal type – not every steel reacts the same. Alloy additives weaken the attraction effect.
- Surface quality – the more even the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal environment – heating the magnet results in weakening of force. Check the maximum operating temperature for a given model.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet and the plate lowers the load capacity.
H&S for magnets
Pinching danger
Watch your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Be careful!
Respect the power
Handle magnets consciously. Their immense force can surprise even professionals. Plan your moves and respect their force.
Allergic reactions
Nickel alert: The nickel-copper-nickel coating contains nickel. If redness occurs, immediately stop working with magnets and use protective gear.
Do not give to children
NdFeB magnets are not suitable for play. Eating multiple magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and necessitates immediate surgery.
Magnet fragility
Watch out for shards. Magnets can explode upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.
Implant safety
Medical warning: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.
Thermal limits
Control the heat. Heating the magnet to high heat will permanently weaken its magnetic structure and strength.
GPS Danger
Navigation devices and smartphones are highly sensitive to magnetism. Close proximity with a strong magnet can decalibrate the internal compass in your phone.
Electronic devices
Data protection: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).
Flammability
Powder generated during grinding of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
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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