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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
bulk discounts:
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Strength along with appearance of a neodymium magnet can be tested with our
magnetic mass calculator.
Orders placed before 14:00 will be shipped the same business day.
Detailed specification - 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of rare earth magnets.
Advantages
- They do not lose strength, even after approximately ten years – the reduction in lifting capacity is only ~1% (according to tests),
- They are extremely resistant to demagnetization induced by external disturbances,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to look better,
- Magnets are distinguished by exceptionally strong magnetic induction on the working surface,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures approaching 230°C and above...
- Considering the ability of free shaping and adaptation to individualized solutions, neodymium magnets can be produced in a variety of shapes and sizes, which increases their versatility,
- Huge importance in high-tech industry – they are used in data components, electric drive systems, advanced medical instruments, as well as modern systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Cons
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
- 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 extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited possibility of producing nuts in the magnet and complex shapes - recommended is casing - magnet mounting.
- Potential hazard resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these devices can complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Magnetic strength at its maximum – what it depends on?
- with the use of a yoke made of special test steel, guaranteeing maximum field concentration
- possessing a thickness of at least 10 mm to avoid saturation
- with an ideally smooth contact surface
- without the slightest insulating layer between the magnet and steel
- during pulling in a direction vertical to the mounting surface
- at standard ambient temperature
Impact of factors on magnetic holding capacity in practice
- Gap (between the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Load vector – highest force is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Steel type – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity was determined using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
Safe handling of NdFeB magnets
Dust explosion hazard
Powder produced during grinding of magnets is self-igniting. Do not drill into magnets unless you are an expert.
Pinching danger
Watch your fingers. Two large magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!
Magnetic media
Powerful magnetic fields can corrupt files on credit cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.
Magnet fragility
Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Safe operation
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.
Health Danger
For implant holders: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or ask another person to work with the magnets.
No play value
Always store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are life-threatening.
GPS Danger
Be aware: rare earth magnets generate a field that confuses precision electronics. Maintain a separation from your mobile, tablet, and GPS.
Heat warning
Watch the temperature. Heating the magnet to high heat will destroy its magnetic structure and pulling force.
Warning for allergy sufferers
Studies show that the nickel plating (standard magnet coating) is a common allergen. If you have an allergy, refrain from direct skin contact and opt for coated magnets.
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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