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HH 36x7.5 [M6] / N38 - through hole magnetic holder
through hole magnetic holder
Catalog no 370479
GTIN/EAN: 5906301814894
Diameter Ø
36 mm [±1 mm]
Height
7.5 mm [±1 mm]
Weight
36 g
Magnetization Direction
↑ axial
Load capacity
26.00 kg / 254.97 N
Coating
[NiCuNi] Nickel
38.90 ZŁ with VAT / pcs + price for transport
31.63 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters along with shape of a magnet can be reviewed with our
force calculator.
Orders placed before 14:00 will be shipped the same business day.
Detailed specification - HH 36x7.5 [M6] / N38 - through hole magnetic holder
Specification / characteristics - HH 36x7.5 [M6] / N38 - through hole magnetic holder
| properties | values |
|---|---|
| Cat. no. | 370479 |
| GTIN/EAN | 5906301814894 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 36 mm [±1 mm] |
| Height | 7.5 mm [±1 mm] |
| Weight | 36 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 26.00 kg / 254.97 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 |
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% |
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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![UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umgw-48x24x11.5-m8-gz-bit.jpg "UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread")
Advantages and disadvantages of rare earth magnets.
Pros
- Their magnetic field is durable, and after approximately 10 years it drops only by ~1% (according to research),
- They maintain their magnetic properties even under external field action,
- The use of an refined finish of noble metals (nickel, gold, silver) causes the element to look better,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to flexibility in constructing and the capacity to adapt to unusual requirements,
- Wide application in advanced technology sectors – they are commonly used in magnetic memories, brushless drives, medical devices, and industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in compact constructions
Weaknesses
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Due to limitations in producing nuts and complicated forms in magnets, we propose using cover - magnetic holder.
- Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these products are able to be problematic in diagnostics medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Lifting parameters
Highest magnetic holding force – what it depends on?
- with the application of a yoke made of special test steel, ensuring maximum field concentration
- possessing a massiveness of minimum 10 mm to ensure full flux closure
- with an polished touching surface
- with zero gap (no impurities)
- under axial force direction (90-degree angle)
- at temperature room level
Impact of factors on magnetic holding capacity in practice
- Clearance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.
Precautions when working with neodymium magnets
No play value
Adult use only. Tiny parts pose a choking risk, leading to severe trauma. Store away from kids and pets.
Bone fractures
Large magnets can smash fingers instantly. Under no circumstances place your hand betwixt two attracting surfaces.
Beware of splinters
NdFeB magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets will cause them cracking into small pieces.
Threat to navigation
Be aware: rare earth magnets generate a field that interferes with precision electronics. Maintain a safe distance from your phone, tablet, and navigation systems.
Sensitization to coating
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction appears, cease working with magnets and wear gloves.
Fire warning
Powder produced during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.
Do not overheat magnets
Avoid heat. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
ICD Warning
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Handling guide
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.
Safe distance
Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, medical aids, timepieces).
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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