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HH 16x5.3 [M3] / N38 - through hole magnetic holder
through hole magnetic holder
Catalog no 370480
GTIN/EAN: 5906301814900
Diameter Ø
16 mm [±1 mm]
Height
5.3 mm [±1 mm]
Weight
6.4 g
Magnetization Direction
↑ axial
Load capacity
4.00 kg / 39.23 N
Coating
[NiCuNi] Nickel
3.32 ZŁ with VAT / pcs + price for transport
2.70 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - HH 16x5.3 [M3] / N38 - through hole magnetic holder
Specification / characteristics - HH 16x5.3 [M3] / N38 - through hole magnetic holder
| properties | values |
|---|---|
| Cat. no. | 370480 |
| GTIN/EAN | 5906301814900 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 16 mm [±1 mm] |
| Height | 5.3 mm [±1 mm] |
| Weight | 6.4 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 4.00 kg / 39.23 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 and cons of rare earth magnets.
Pros
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
- Neodymium magnets are distinguished by extremely resistant to magnetic field loss caused by external field sources,
- By covering with a shiny coating of gold, the element acquires an aesthetic look,
- The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
- Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of accurate machining as well as adapting to complex conditions,
- Versatile presence in electronics industry – they find application in mass storage devices, electromotive mechanisms, advanced medical instruments, and industrial machines.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as 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 suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- We recommend casing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these devices can complicate diagnosis medical in case of swallowing.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Lifting parameters
Best holding force of the magnet in ideal parameters – what affects it?
- using a sheet made of mild steel, acting as a ideal flux conductor
- whose thickness is min. 10 mm
- characterized by lack of roughness
- under conditions of no distance (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- in stable room temperature
Determinants of practical lifting force of a magnet
- Distance – existence of any layer (paint, dirt, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the plate is usually 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 restricts the attraction force (the magnet "punches through" it).
- Steel type – mild steel attracts best. Higher carbon content reduce magnetic properties and lifting capacity.
- Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
- Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as fivefold. Moreover, even a minimal clearance between the magnet and the plate reduces the holding force.
Warnings
Operating temperature
Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.
Allergic reactions
Studies show that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and opt for coated magnets.
Powerful field
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.
Mechanical processing
Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
No play value
Adult use only. Tiny parts pose a choking risk, causing intestinal necrosis. Keep out of reach of kids and pets.
Compass and GPS
Navigation devices and smartphones are extremely sensitive to magnetism. Direct contact with a strong magnet can ruin the sensors in your phone.
Magnets are brittle
Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Safe distance
Intense magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of at least 10 cm.
Bone fractures
Pinching hazard: The pulling power is so great that it can result in hematomas, pinching, and broken bones. Use thick gloves.
Medical interference
Patients with a heart stimulator have to keep an absolute distance from magnets. The magnetic field can disrupt the functioning of the implant.
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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