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UMH 32x8x46 [M6] / N38 - magnetic holder with hook
magnetic holder with hook
Catalog no 310427
GTIN/EAN: 5906301814566
Diameter Ø
32 mm [±1 mm]
Height
46 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
53 g
Magnetization Direction
↑ axial
Load capacity
38.00 kg / 372.65 N
Coating
[NiCuNi] Nickel
22.14 ZŁ with VAT / pcs + price for transport
18.00 ZŁ net + 23% VAT / pcs
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Physical properties - UMH 32x8x46 [M6] / N38 - magnetic holder with hook
Specification / characteristics - UMH 32x8x46 [M6] / N38 - magnetic holder with hook
| properties | values |
|---|---|
| Cat. no. | 310427 |
| GTIN/EAN | 5906301814566 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 46 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 53 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 38.00 kg / 372.65 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 |
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 |
Other deals
Strengths as well as weaknesses of neodymium magnets.
Benefits
- Their magnetic field is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
- They are extremely resistant to demagnetization induced by external disturbances,
- By using a decorative coating of gold, the element acquires an proper look,
- Magnets have impressive magnetic induction on the active area,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to versatility in constructing and the ability to customize to individual projects,
- Key role in future technologies – they are used in HDD drives, brushless drives, medical equipment, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in miniature devices
Cons
- At strong impacts they can break, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We suggest a housing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated shapes.
- Possible danger resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical after entering the body.
- Due to expensive raw materials, their price is higher than average,
Lifting parameters
Highest magnetic holding force – what contributes to it?
- with the application of a sheet made of special test steel, ensuring maximum field concentration
- possessing a thickness of min. 10 mm to avoid saturation
- with an ideally smooth touching surface
- under conditions of no distance (metal-to-metal)
- during pulling in a direction vertical to the mounting surface
- at temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
- Distance – the presence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is reached only during perpendicular pulling. The resistance to sliding of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – too thin plate does not accept the full field, causing part of the flux to be escaped to the other side.
- Chemical composition of the base – mild steel gives the best results. Alloy steels decrease magnetic properties and holding force.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Heat – NdFeB sinters have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).
Lifting capacity was measured by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate decreases the holding force.
Safety rules for work with neodymium magnets
Impact on smartphones
Navigation devices and mobile phones are highly sensitive to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.
Eye protection
Neodymium magnets are ceramic materials, meaning they are very brittle. Collision of two magnets leads to them cracking into shards.
Safe operation
Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.
Product not for children
Strictly keep magnets away from children. Choking hazard is significant, and the consequences of magnets clamping inside the body are life-threatening.
Life threat
Medical warning: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Permanent damage
Control the heat. Exposing the magnet to high heat will ruin its magnetic structure and strength.
Nickel allergy
A percentage of the population have a contact allergy to nickel, which is the standard coating for NdFeB magnets. Extended handling can result in skin redness. We recommend wear protective gloves.
Electronic devices
Data protection: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).
Bodily injuries
Mind your fingers. Two powerful magnets will snap together immediately with a force of massive weight, crushing anything in their path. Be careful!
Flammability
Powder generated during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.
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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